modify object parsing

In
[genai-toolbox](https://googleapis.github.io/genai-toolbox/resources/sources/valkey/)
Official Documentation of valkey URL is broken.

---------

Co-authored-by: Yuan Teoh <45984206+Yuan325@users.noreply.github.com>

.github/blunderbuss.yml

@@ -2,6 +2,7 @@ assign_issues:
   - kurtisvg
   - Yuan325
   - duwenxin99
+  - akitsch
 assign_issues_by:
   - labels:
     - 'product: bigquery'
@@ -13,3 +14,4 @@ assign_prs:
   - kurtisvg
   - Yuan325
   - duwenxin99
+  - akitsch

.github/release-please.yml

@@ -20,6 +20,7 @@ extraFiles: [
     "README.md",
     "docs/en/getting-started/introduction/_index.md",
     "docs/en/getting-started/local_quickstart.md",
+    "docs/en/getting-started/local_quickstart_js.md",
     "docs/en/getting-started/mcp_quickstart/_index.md",
     "docs/en/samples/bigquery/local_quickstart.md",
     "docs/en/samples/bigquery/mcp_quickstart/_index.md",

.hugo/assets/scss/_styles_project.scss

@@ -0,0 +1 @@
+@import 'td/code-dark';

.hugo/hugo.toml

@@ -48,7 +48,11 @@ enableRobotsTXT = true
   pre = "<i class='fa-brands fa-github'></i>"
 
 [markup.goldmark.renderer]
-  unsafe= true 
+  unsafe= true
+
+[markup.highlight]
+  noClasses = false
+  style = "tango"
 
 [outputFormats]
   [outputFormats.LLMS]

.hugo/layouts/shortcodes/include.html

@@ -0,0 +1,2 @@
+{{ $file := .Get 0 }}
+{{ (printf "%s%s" .Page.File.Dir $file) | readFile | replaceRE "^---[\\s\\S]+?---" "" | safeHTML }}

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## [0.9.0](https://github.com/googleapis/genai-toolbox/compare/v0.8.0...v0.9.0) (2025-07-11)
+
+
+### Features
+
+* Dynamic reloading for toolbox config ([#800](https://github.com/googleapis/genai-toolbox/issues/800)) ([4c240ac](https://github.com/googleapis/genai-toolbox/commit/4c240ac3c961cd14738c998ba2d10d5235ef523e))
+* **sources/mysql:** Add queryTimeout support to MySQL source ([#830](https://github.com/googleapis/genai-toolbox/issues/830)) ([391cb5b](https://github.com/googleapis/genai-toolbox/commit/391cb5bfe845e554411240a1d9838df5331b25fa))
+* **tools/bigquery:** Add optional projectID parameter to bigquery tools ([#799](https://github.com/googleapis/genai-toolbox/issues/799)) ([c6ab74c](https://github.com/googleapis/genai-toolbox/commit/c6ab74c5dad53a0e7885a18438ab3be36b9b7cb3))
+
+
+### Bug Fixes
+
+* Cleanup unassigned err log ([#857](https://github.com/googleapis/genai-toolbox/issues/857)) ([c081ace](https://github.com/googleapis/genai-toolbox/commit/c081ace46bb24cb3fd2adb21d519489be0d3f3c3))
+* Fix docs preview deployment pipeline ([#787](https://github.com/googleapis/genai-toolbox/issues/787)) ([0a93b04](https://github.com/googleapis/genai-toolbox/commit/0a93b0482c8d3c64b324e67408d408f5576ecaf3))
+* **tools:** Nil parameter error when arrays are used ([#801](https://github.com/googleapis/genai-toolbox/issues/801)) ([2bdcc08](https://github.com/googleapis/genai-toolbox/commit/2bdcc0841ab37d18e2f0d6fe63fb6f10da3e302b))
+* Trigger reload on additional fsnotify operations ([#854](https://github.com/googleapis/genai-toolbox/issues/854)) ([aa8dbec](https://github.com/googleapis/genai-toolbox/commit/aa8dbec97095cf0d7ac771c8084a84e2d3d8ce4e))
+
 ## [0.8.0](https://github.com/googleapis/genai-toolbox/compare/v0.7.0...v0.8.0) (2025-07-02)
 
 

README.md

@@ -2,7 +2,9 @@
 
 # MCP Toolbox for Databases
 
-[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/Dmm69peqjh)
+[![Docs](https://img.shields.io/badge/docs-MCP_Toolbox-blue)](https://googleapis.github.io/genai-toolbox/)
+[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?style=flat&logo=discord&logoColor=white)](https://discord.gg/Dmm69peqjh)
+[![Medium](https://img.shields.io/badge/Medium-12100E?style=flat&logo=medium&logoColor=white)](https://medium.com/@mcp_toolbox)
 [![Go Report Card](https://goreportcard.com/badge/github.com/googleapis/genai-toolbox)](https://goreportcard.com/report/github.com/googleapis/genai-toolbox)
 
 > [!NOTE]
@@ -38,6 +40,7 @@ documentation](https://googleapis.github.io/genai-toolbox/).
   - [Toolsets](#toolsets)
 - [Versioning](#versioning)
 - [Contributing](#contributing)
+- [Community](#community)
 
 <!-- /TOC -->
 
@@ -111,7 +114,7 @@ To install Toolbox as a binary:
 <!-- {x-release-please-start-version} -->
 ```sh
 # see releases page for other versions
-export VERSION=0.8.0
+export VERSION=0.9.0
 curl -O https://storage.googleapis.com/genai-toolbox/v$VERSION/linux/amd64/toolbox
 chmod +x toolbox
 ```
@@ -124,7 +127,7 @@ You can also install Toolbox as a container:
 
 ```sh
 # see releases page for other versions
-export VERSION=0.8.0
+export VERSION=0.9.0
 docker pull us-central1-docker.pkg.dev/database-toolbox/toolbox/toolbox:$VERSION
 ```
 
@@ -137,7 +140,7 @@ To install from source, ensure you have the latest version of
 [Go installed](https://go.dev/doc/install), and then run the following command:
 
 ```sh
-go install github.com/googleapis/genai-toolbox@v0.8.0
+go install github.com/googleapis/genai-toolbox@v0.9.0
 ```
 <!-- {x-release-please-end} -->
 
@@ -151,6 +154,8 @@ execute `toolbox` to start the server:
 ```sh
 ./toolbox --tools-file "tools.yaml"
 ```
+> [!NOTE]
+> Toolbox enables dynamic reloading by default. To disable, use the `--disable-reload` flag.
 
 You can use `toolbox help` for a full list of flags! To stop the server, send a
 terminate signal (`ctrl+c` on most platforms).
@@ -165,7 +170,12 @@ Once your server is up and running, you can load the tools into your
 application. See below the list of Client SDKs for using various frameworks:
 
 <details open>
-<summary>Core</summary>
+  <summary>Python (<a href="https://github.com/googleapis/mcp-toolbox-sdk-python">Github</a>)</summary>
+  <br>
+  <blockquote>
+
+  <details open>
+    <summary>Core</summary>
 
 1. Install [Toolbox Core SDK][toolbox-core]:
 
@@ -191,9 +201,9 @@ For more detailed instructions on using the Toolbox Core SDK, see the
 [toolbox-core]: https://pypi.org/project/toolbox-core/
 [toolbox-core-readme]: https://github.com/googleapis/mcp-toolbox-sdk-python/tree/main/packages/toolbox-core/README.md
 
-</details>
-<details>
-<summary>LangChain / LangGraph</summary>
+  </details>
+  <details>
+    <summary>LangChain / LangGraph</summary>
 
 1. Install [Toolbox LangChain SDK][toolbox-langchain]:
 
@@ -213,16 +223,15 @@ For more detailed instructions on using the Toolbox Core SDK, see the
         tools = client.load_toolset()
     ```
 
-For more detailed instructions on using the Toolbox LangChain SDK, see the
-[project's README][toolbox-langchain-readme].
+    For more detailed instructions on using the Toolbox LangChain SDK, see the
+    [project's README][toolbox-langchain-readme].
 
-[toolbox-langchain]: https://pypi.org/project/toolbox-langchain/
-[toolbox-langchain-readme]: https://github.com/googleapis/mcp-toolbox-sdk-python/blob/main/packages/toolbox-langchain/README.md
+    [toolbox-langchain]: https://pypi.org/project/toolbox-langchain/
+    [toolbox-langchain-readme]: https://github.com/googleapis/mcp-toolbox-sdk-python/blob/main/packages/toolbox-langchain/README.md
 
-</details>
-
-<details>
-<summary>LlamaIndex</summary>
+  </details>
+  <details>
+    <summary>LlamaIndex</summary>
 
 1. Install [Toolbox Llamaindex SDK][toolbox-llamaindex]:
 
@@ -242,12 +251,395 @@ For more detailed instructions on using the Toolbox LangChain SDK, see the
         tools = client.load_toolset()
     ```
 
-For more detailed instructions on using the Toolbox Llamaindex SDK, see the
-[project's README][toolbox-llamaindex-readme].
+    For more detailed instructions on using the Toolbox Llamaindex SDK, see the
+    [project's README][toolbox-llamaindex-readme].
 
-[toolbox-llamaindex]: https://pypi.org/project/toolbox-llamaindex/
-[toolbox-llamaindex-readme]: https://github.com/googleapis/genai-toolbox-llamaindex-python/blob/main/README.md
+    [toolbox-llamaindex]: https://pypi.org/project/toolbox-llamaindex/
+    [toolbox-llamaindex-readme]: https://github.com/googleapis/genai-toolbox-llamaindex-python/blob/main/README.md
 
+  </details>
+</details>
+</blockquote>
+<details>
+  <summary>Javascript/Typescript (<a href="https://github.com/googleapis/mcp-toolbox-sdk-js">Github</a>)</summary>
+  <br>
+  <blockquote>
+
+  <details open>
+    <summary>Core</summary>
+
+1. Install [Toolbox Core SDK][toolbox-core-js]:
+
+    ```bash
+    npm install @toolbox-sdk/core
+    ```
+
+1. Load tools:
+
+    ```javascript
+    import { ToolboxClient } from '@toolbox-sdk/core';
+
+    // update the url to point to your server
+    const URL = 'http://127.0.0.1:5000';
+    let client = new ToolboxClient(URL);
+
+    // these tools can be passed to your application!
+    const tools = await client.loadToolset('toolsetName');
+    ```
+
+    For more detailed instructions on using the Toolbox Core SDK, see the
+    [project's README][toolbox-core-js-readme].
+
+    [toolbox-core-js]: https://www.npmjs.com/package/@toolbox-sdk/core
+    [toolbox-core-js-readme]: https://github.com/googleapis/mcp-toolbox-sdk-js/blob/main/packages/toolbox-core/README.md
+
+  </details>
+  <details>
+    <summary>LangChain / LangGraph</summary>
+
+1. Install [Toolbox Core SDK][toolbox-core-js]:
+
+    ```bash
+    npm install @toolbox-sdk/core
+    ```
+
+2. Load tools:
+
+    ```javascript
+    import { ToolboxClient } from '@toolbox-sdk/core';
+
+    // update the url to point to your server
+    const URL = 'http://127.0.0.1:5000';
+    let client = new ToolboxClient(URL);
+
+    // these tools can be passed to your application!
+    const toolboxTools = await client.loadToolset('toolsetName');
+
+    // Define the basics of the tool: name, description, schema and core logic
+    const getTool = (toolboxTool) => tool(currTool, {
+        name: toolboxTool.getName(),
+        description: toolboxTool.getDescription(),
+        schema: toolboxTool.getParamSchema()
+    });
+
+    // Use these tools in your Langchain/Langraph applications
+    const tools = toolboxTools.map(getTool);
+    ```
+
+  </details>
+  <details>
+    <summary>Genkit</summary>
+
+1. Install [Toolbox Core SDK][toolbox-core-js]:
+
+    ```bash
+    npm install @toolbox-sdk/core
+    ```
+
+2. Load tools:
+
+    ```javascript
+    import { ToolboxClient } from '@toolbox-sdk/core';
+    import { genkit } from 'genkit';
+
+    // Initialise genkit
+    const ai = genkit({
+        plugins: [
+            googleAI({
+                apiKey: process.env.GEMINI_API_KEY || process.env.GOOGLE_API_KEY
+            })
+        ],
+        model: googleAI.model('gemini-2.0-flash'),
+    });
+
+    // update the url to point to your server
+    const URL = 'http://127.0.0.1:5000';
+    let client = new ToolboxClient(URL);
+
+    // these tools can be passed to your application!
+    const toolboxTools = await client.loadToolset('toolsetName');
+
+    // Define the basics of the tool: name, description, schema and core logic
+    const getTool = (toolboxTool) => ai.defineTool({
+        name: toolboxTool.getName(),
+        description: toolboxTool.getDescription(),
+        schema: toolboxTool.getParamSchema()
+    }, toolboxTool)
+
+    // Use these tools in your Genkit applications
+    const tools = toolboxTools.map(getTool);
+    ```
+
+  </details>
+</details>
+</blockquote>
+<details>
+  <summary>Go (<a href="https://github.com/googleapis/mcp-toolbox-sdk-go">Github</a>)</summary>
+  <br>
+  <blockquote>
+
+  <details open>
+    <summary>Core</summary>
+
+1. Install [Toolbox Go SDK][toolbox-go]:
+
+    ```bash
+    go get github.com/googleapis/mcp-toolbox-sdk-go
+    ```
+
+1. Load tools:
+
+    ```go
+    package main
+
+    import (
+      "github.com/googleapis/mcp-toolbox-sdk-go/core"
+      "context"
+    )
+
+    func main() {
+      // Make sure to add the error checks
+      // update the url to point to your server
+      URL := "http://127.0.0.1:5000";
+      ctx := context.Background()
+
+      client, err := core.NewToolboxClient(URL)
+
+      // Framework agnostic tools
+      tools, err := client.LoadToolset("toolsetName", ctx)
+    }
+    ```
+
+    For more detailed instructions on using the Toolbox Go SDK, see the
+    [project's README][toolbox-core-go-readme].
+
+    [toolbox-go]: https://pkg.go.dev/github.com/googleapis/mcp-toolbox-sdk-go/core
+    [toolbox-core-go-readme]: https://github.com/googleapis/mcp-toolbox-sdk-go/blob/main/core/README.md
+
+  </details>
+  <details>
+    <summary>LangChain Go</summary>
+
+1. Install [Toolbox Go SDK][toolbox-go]:
+
+    ```bash
+    go get github.com/googleapis/mcp-toolbox-sdk-go
+    ```
+
+2. Load tools:
+
+    ```go
+    package main
+
+    import (
+      "context"
+      "encoding/json"
+
+      "github.com/googleapis/mcp-toolbox-sdk-go/core"
+      "github.com/tmc/langchaingo/llms"
+    )
+
+    func main() {
+      // Make sure to add the error checks
+      // update the url to point to your server
+      URL := "http://127.0.0.1:5000"
+      ctx := context.Background()
+
+      client, err := core.NewToolboxClient(URL)
+
+      // Framework agnostic tool
+      tool, err := client.LoadTool("toolName", ctx)
+
+      // Fetch the tool's input schema
+      inputschema, err := tool.InputSchema()
+
+      var paramsSchema map[string]any
+      _ = json.Unmarshal(inputschema, &paramsSchema)
+
+      // Use this tool with LangChainGo
+      langChainTool := llms.Tool{
+        Type: "function",
+        Function: &llms.FunctionDefinition{
+          Name:        tool.Name(),
+          Description: tool.Description(),
+          Parameters:  paramsSchema,
+        },
+      }
+    }
+
+    ```
+
+  </details>
+  <details>
+    <summary>Genkit</summary>
+
+1. Install [Toolbox Go SDK][toolbox-go]:
+
+    ```bash
+    go get github.com/googleapis/mcp-toolbox-sdk-go
+    ```
+
+2. Load tools:
+
+    ```go
+    package main
+    import (
+      "context"
+      "encoding/json"
+
+      "github.com/firebase/genkit/go/ai"
+      "github.com/firebase/genkit/go/genkit"
+      "github.com/googleapis/mcp-toolbox-sdk-go/core"
+      "github.com/invopop/jsonschema"
+    )
+
+    func main() {
+      // Make sure to add the error checks
+      // Update the url to point to your server
+      URL := "http://127.0.0.1:5000"
+      ctx := context.Background()
+      g, err := genkit.Init(ctx)
+
+      client, err := core.NewToolboxClient(URL)
+
+      // Framework agnostic tool
+      tool, err := client.LoadTool("toolName", ctx)
+
+      // Fetch the tool's input schema
+      inputschema, err := tool.InputSchema()
+
+      var schema *jsonschema.Schema
+      _ = json.Unmarshal(inputschema, &schema)
+
+      executeFn := func(ctx *ai.ToolContext, input any) (string, error) {
+        result, err := tool.Invoke(ctx, input.(map[string]any))
+        if err != nil {
+          // Propagate errors from the tool invocation.
+          return "", err
+        }
+
+        return result.(string), nil
+      }
+
+      // Use this tool with Genkit Go
+      genkitTool := genkit.DefineToolWithInputSchema(
+        g,
+        tool.Name(),
+        tool.Description(),
+        schema,
+        executeFn,
+      )
+    }
+    ```
+
+  </details>
+  <details>
+    <summary>Go GenAI</summary>
+
+1. Install [Toolbox Go SDK][toolbox-go]:
+
+    ```bash
+    go get github.com/googleapis/mcp-toolbox-sdk-go
+    ```
+
+2. Load tools:
+
+    ```go
+    package main
+
+    import (
+      "context"
+      "encoding/json"
+
+      "github.com/googleapis/mcp-toolbox-sdk-go/core"
+      "google.golang.org/genai"
+    )
+
+    func main() {
+      // Make sure to add the error checks
+      // Update the url to point to your server
+      URL := "http://127.0.0.1:5000"
+      ctx := context.Background()
+
+      client, err := core.NewToolboxClient(URL)
+
+      // Framework agnostic tool
+      tool, err := client.LoadTool("toolName", ctx)
+
+      // Fetch the tool's input schema
+      inputschema, err := tool.InputSchema()
+
+      var schema *genai.Schema
+      _ = json.Unmarshal(inputschema, &schema)
+
+      funcDeclaration := &genai.FunctionDeclaration{
+        Name:        tool.Name(),
+        Description: tool.Description(),
+        Parameters:  schema,
+      }
+
+      // Use this tool with Go GenAI
+      genAITool := &genai.Tool{
+        FunctionDeclarations: []*genai.FunctionDeclaration{funcDeclaration},
+      }
+    }
+    ```
+
+  </details>
+  <details>
+    <summary>OpenAI Go</summary>
+
+1. Install [Toolbox Go SDK][toolbox-go]:
+
+    ```bash
+    go get github.com/googleapis/mcp-toolbox-sdk-go
+    ```
+
+2. Load tools:
+
+    ```go
+    package main
+
+    import (
+      "context"
+      "encoding/json"
+
+      "github.com/googleapis/mcp-toolbox-sdk-go/core"
+      openai "github.com/openai/openai-go"
+    )
+
+    func main() {
+      // Make sure to add the error checks
+      // Update the url to point to your server
+      URL := "http://127.0.0.1:5000"
+      ctx := context.Background()
+
+      client, err := core.NewToolboxClient(URL)
+
+      // Framework agnostic tool
+      tool, err := client.LoadTool("toolName", ctx)
+
+      // Fetch the tool's input schema
+      inputschema, err := tool.InputSchema()
+
+      var paramsSchema openai.FunctionParameters
+      _ = json.Unmarshal(inputschema, &paramsSchema)
+
+      // Use this tool with OpenAI Go
+      openAITool := openai.ChatCompletionToolParam{
+        Function: openai.FunctionDefinitionParam{
+          Name:        tool.Name(),
+          Description: openai.String(tool.Description()),
+          Parameters:  paramsSchema,
+        },
+      }
+
+    }
+    ```
+
+  </details>
+</details>
+</blockquote>
 </details>
 
 ## Configuration
@@ -346,3 +738,7 @@ to get started.
 Please note that this project is released with a Contributor Code of Conduct.
 By participating in this project you agree to abide by its terms. See
 [Contributor Code of Conduct](CODE_OF_CONDUCT.md) for more information.
+
+## Community
+
+Join our [discord community](https://discord.gg/GQrFB3Ec3W) to connect with our developers!

cmd/root.go

@@ -19,20 +19,26 @@ import (
 	_ "embed"
 	"fmt"
 	"io"
+	"maps"
 	"os"
 	"os/signal"
 	"path/filepath"
 	"regexp"
 	"runtime"
+	"slices"
 	"strings"
 	"syscall"
 	"time"
 
+	"github.com/fsnotify/fsnotify"
 	yaml "github.com/goccy/go-yaml"
+	"github.com/googleapis/genai-toolbox/internal/auth"
 	"github.com/googleapis/genai-toolbox/internal/log"
 	"github.com/googleapis/genai-toolbox/internal/prebuiltconfigs"
 	"github.com/googleapis/genai-toolbox/internal/server"
+	"github.com/googleapis/genai-toolbox/internal/sources"
 	"github.com/googleapis/genai-toolbox/internal/telemetry"
+	"github.com/googleapis/genai-toolbox/internal/tools"
 	"github.com/googleapis/genai-toolbox/internal/util"
 
 	// Import tool packages for side effect of registration
@@ -58,6 +64,7 @@ import (
 	_ "github.com/googleapis/genai-toolbox/internal/tools/spanner/spannerexecutesql"
 	_ "github.com/googleapis/genai-toolbox/internal/tools/spanner/spannersql"
 	_ "github.com/googleapis/genai-toolbox/internal/tools/sqlitesql"
+	_ "github.com/googleapis/genai-toolbox/internal/tools/utility/wait"
 	_ "github.com/googleapis/genai-toolbox/internal/tools/valkey"
 
 	"github.com/spf13/cobra"
@@ -178,6 +185,7 @@ func NewCommand(opts ...Option) *Command {
 	flags.StringVar(&cmd.cfg.TelemetryServiceName, "telemetry-service-name", "toolbox", "Sets the value of the service.name resource attribute for telemetry data.")
 	flags.StringVar(&cmd.prebuiltConfig, "prebuilt", "", "Use a prebuilt tool configuration by source type. Cannot be used with --tools-file. Allowed: 'alloydb-postgres', 'bigquery', 'cloud-sql-mysql', 'cloud-sql-postgres', 'cloud-sql-mssql', 'postgres', 'spanner', 'spanner-postgres'.")
 	flags.BoolVar(&cmd.cfg.Stdio, "stdio", false, "Listens via MCP STDIO instead of acting as a remote HTTP server.")
+	flags.BoolVar(&cmd.cfg.DisableReload, "disable-reload", false, "Disables dynamic reloading of tools file.")
 
 	// wrap RunE command so that we have access to original Command object
 	cmd.RunE = func(*cobra.Command, []string) error { return run(cmd) }
@@ -347,7 +355,7 @@ func loadAndMergeToolsFolder(ctx context.Context, folderPath string) (ToolsFile,
 
 	// Combine both file lists
 	allFiles := append(yamlFiles, ymlFiles...)
-	
+
 	if len(allFiles) == 0 {
 		return ToolsFile{}, fmt.Errorf("no YAML files found in directory %q", folderPath)
 	}
@@ -356,6 +364,178 @@ func loadAndMergeToolsFolder(ctx context.Context, folderPath string) (ToolsFile,
 	return loadAndMergeToolsFiles(ctx, allFiles)
 }
 
+func handleDynamicReload(ctx context.Context, toolsFile ToolsFile, s *server.Server) error {
+	logger, err := util.LoggerFromContext(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	sourcesMap, authServicesMap, toolsMap, toolsetsMap, err := validateReloadEdits(ctx, toolsFile)
+	if err != nil {
+		errMsg := fmt.Errorf("unable to validate reloaded edits: %w", err)
+		logger.WarnContext(ctx, errMsg.Error())
+		return err
+	}
+
+	s.ResourceMgr.SetResources(sourcesMap, authServicesMap, toolsMap, toolsetsMap)
+
+	return nil
+}
+
+// validateReloadEdits checks that the reloaded tools file configs can initialized without failing
+func validateReloadEdits(
+	ctx context.Context, toolsFile ToolsFile,
+) (map[string]sources.Source, map[string]auth.AuthService, map[string]tools.Tool, map[string]tools.Toolset, error,
+) {
+	logger, err := util.LoggerFromContext(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	instrumentation, err := util.InstrumentationFromContext(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	logger.DebugContext(ctx, "Attempting to parse and validate reloaded tools file.")
+
+	ctx, span := instrumentation.Tracer.Start(ctx, "toolbox/server/reload")
+	defer span.End()
+
+	reloadedConfig := server.ServerConfig{
+		Version:            versionString,
+		SourceConfigs:      toolsFile.Sources,
+		AuthServiceConfigs: toolsFile.AuthServices,
+		ToolConfigs:        toolsFile.Tools,
+		ToolsetConfigs:     toolsFile.Toolsets,
+	}
+
+	sourcesMap, authServicesMap, toolsMap, toolsetsMap, err := server.InitializeConfigs(ctx, reloadedConfig)
+	if err != nil {
+		errMsg := fmt.Errorf("unable to initialize reloaded configs: %w", err)
+		logger.WarnContext(ctx, errMsg.Error())
+		return nil, nil, nil, nil, err
+	}
+
+	return sourcesMap, authServicesMap, toolsMap, toolsetsMap, nil
+}
+
+// watchChanges checks for changes in the provided yaml tools file(s) or folder.
+func watchChanges(ctx context.Context, watchDirs map[string]bool, watchedFiles map[string]bool, s *server.Server) {
+	logger, err := util.LoggerFromContext(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	w, err := fsnotify.NewWatcher()
+	if err != nil {
+		logger.WarnContext(ctx, "error setting up new watcher %s", err)
+		return
+	}
+
+	defer w.Close()
+
+	watchingFolder := false
+	var folderToWatch string
+
+	// if watchedFiles is empty, indicates that user passed entire folder instead
+	if len(watchedFiles) == 0 {
+		watchingFolder = true
+
+		// validate that watchDirs only has single element
+		if len(watchDirs) > 1 {
+			logger.WarnContext(ctx, "error setting watcher, expected single tools folder if no file(s) are defined.")
+			return
+		}
+
+		for onlyKey := range watchDirs {
+			folderToWatch = onlyKey
+			break
+		}
+	}
+
+	for dir := range watchDirs {
+		err := w.Add(dir)
+		if err != nil {
+			logger.WarnContext(ctx, fmt.Sprintf("Error adding path %s to watcher: %s", dir, err))
+			break
+		}
+		logger.DebugContext(ctx, fmt.Sprintf("Added directory %s to watcher.", dir))
+	}
+
+	// debounce timer is used to prevent multiple writes triggering multiple reloads
+	debounceDelay := 100 * time.Millisecond
+	debounce := time.NewTimer(1 * time.Minute)
+	debounce.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			logger.DebugContext(ctx, "file watcher context cancelled")
+			return
+		case err, ok := <-w.Errors:
+			if !ok {
+				logger.WarnContext(ctx, "file watcher was closed unexpectedly")
+				return
+			}
+			if err != nil {
+				logger.WarnContext(ctx, "file watcher error %s", err)
+				return
+			}
+
+		case e, ok := <-w.Events:
+			if !ok {
+				logger.WarnContext(ctx, "file watcher already closed")
+				return
+			}
+
+			// only check for events which indicate user saved a new tools file
+			// multiple operations checked due to various file update methods across editors
+			if !e.Has(fsnotify.Write | fsnotify.Create | fsnotify.Rename) {
+				continue
+			}
+
+			cleanedFilename := filepath.Clean(e.Name)
+			logger.DebugContext(ctx, fmt.Sprintf("%s event detected in %s", e.Op, cleanedFilename))
+
+			folderChanged := watchingFolder &&
+				(strings.HasSuffix(cleanedFilename, ".yaml") || strings.HasSuffix(cleanedFilename, ".yml"))
+
+			if folderChanged || watchedFiles[cleanedFilename] {
+				// indicates the write event is on a relevant file
+				debounce.Reset(debounceDelay)
+			}
+
+		case <-debounce.C:
+			debounce.Stop()
+			var reloadedToolsFile ToolsFile
+
+			if watchingFolder {
+				logger.DebugContext(ctx, "Reloading tools folder.")
+				reloadedToolsFile, err = loadAndMergeToolsFolder(ctx, folderToWatch)
+				if err != nil {
+					logger.WarnContext(ctx, "error loading tools folder %s", err)
+					continue
+				}
+			} else {
+				logger.DebugContext(ctx, "Reloading tools file(s).")
+				reloadedToolsFile, err = loadAndMergeToolsFiles(ctx, slices.Collect(maps.Keys(watchedFiles)))
+				if err != nil {
+					logger.WarnContext(ctx, "error loading tools files %s", err)
+					continue
+				}
+			}
+
+			err = handleDynamicReload(ctx, reloadedToolsFile, s)
+			if err != nil {
+				errMsg := fmt.Errorf("unable to parse reloaded tools file at %q: %w", reloadedToolsFile, err)
+				logger.WarnContext(ctx, errMsg.Error())
+				continue
+			}
+		}
+	}
+}
+
 // updateLogLevel checks if Toolbox have to update the existing log level set by users.
 // stdio doesn't support "debug" and "info" logs.
 func updateLogLevel(stdio bool, logLevel string) bool {
@@ -370,6 +550,33 @@ func updateLogLevel(stdio bool, logLevel string) bool {
 	return false
 }
 
+func resolveWatcherInputs(toolsFile string, toolsFiles []string, toolsFolder string) (map[string]bool, map[string]bool) {
+	var relevantFiles []string
+
+	// map for efficiently checking if a file is relevant
+	watchedFiles := make(map[string]bool)
+
+	// dirs that will be added to watcher (fsnotify prefers watching directory then filtering for file)
+	watchDirs := make(map[string]bool)
+
+	if len(toolsFiles) > 0 {
+		relevantFiles = toolsFiles
+	} else if toolsFolder != "" {
+		watchDirs[filepath.Clean(toolsFolder)] = true
+	} else {
+		relevantFiles = []string{toolsFile}
+	}
+
+	// extract parent dir for relevant files and dedup
+	for _, f := range relevantFiles {
+		cleanFile := filepath.Clean(f)
+		watchedFiles[cleanFile] = true
+		watchDirs[filepath.Dir(cleanFile)] = true
+	}
+
+	return watchDirs, watchedFiles
+}
+
 func run(cmd *Command) error {
 	if updateLogLevel(cmd.cfg.Stdio, cmd.cfg.LogLevel.String()) {
 		cmd.cfg.LogLevel = server.StringLevel(log.Warn)
@@ -466,6 +673,7 @@ func run(cmd *Command) error {
 			cmd.logger.ErrorContext(ctx, errMsg.Error())
 			return errMsg
 		}
+
 		// Use multiple tools files
 		cmd.logger.InfoContext(ctx, fmt.Sprintf("Loading and merging %d tool configuration files", len(cmd.tools_files)))
 		var err error
@@ -481,6 +689,7 @@ func run(cmd *Command) error {
 			cmd.logger.ErrorContext(ctx, errMsg.Error())
 			return errMsg
 		}
+
 		// Use tools folder
 		cmd.logger.InfoContext(ctx, fmt.Sprintf("Loading and merging all YAML files from directory: %s", cmd.tools_folder))
 		var err error
@@ -494,6 +703,7 @@ func run(cmd *Command) error {
 		if cmd.tools_file == "" {
 			cmd.tools_file = "tools.yaml"
 		}
+
 		// Read single tool file contents
 		buf, err := os.ReadFile(cmd.tools_file)
 		if err != nil {
@@ -517,8 +727,17 @@ func run(cmd *Command) error {
 		cmd.cfg.AuthServiceConfigs = authSourceConfigs
 	}
 
+	instrumentation, err := telemetry.CreateTelemetryInstrumentation(versionString)
+	if err != nil {
+		errMsg := fmt.Errorf("unable to create telemetry instrumentation: %w", err)
+		cmd.logger.ErrorContext(ctx, errMsg.Error())
+		return errMsg
+	}
+
+	ctx = util.WithInstrumentation(ctx, instrumentation)
+
 	// start server
-	s, err := server.NewServer(ctx, cmd.cfg, cmd.logger)
+	s, err := server.NewServer(ctx, cmd.cfg)
 	if err != nil {
 		errMsg := fmt.Errorf("toolbox failed to initialize: %w", err)
 		cmd.logger.ErrorContext(ctx, errMsg.Error())
@@ -553,6 +772,13 @@ func run(cmd *Command) error {
 		}()
 	}
 
+	watchDirs, watchedFiles := resolveWatcherInputs(cmd.tools_file, cmd.tools_files, cmd.tools_folder)
+
+	if !cmd.cfg.DisableReload {
+		// start watching the file(s) or folder for changes to trigger dynamic reloading
+		go watchChanges(ctx, watchDirs, watchedFiles, s)
+	}
+
 	// wait for either the server to error out or the command's context to be canceled
 	select {
 	case err := <-srvErr:

cmd/root_test.go

@@ -16,23 +16,33 @@ package cmd
 
 import (
 	"bytes"
+	"context"
 	_ "embed"
+	"fmt"
+	"io"
 	"os"
+	"path"
+	"path/filepath"
+	"regexp"
 	"runtime"
 	"strings"
 	"testing"
+	"time"
 
 	"github.com/google/go-cmp/cmp"
 
 	"github.com/googleapis/genai-toolbox/internal/auth/google"
+	"github.com/googleapis/genai-toolbox/internal/log"
 	"github.com/googleapis/genai-toolbox/internal/prebuiltconfigs"
 	"github.com/googleapis/genai-toolbox/internal/server"
 	cloudsqlpgsrc "github.com/googleapis/genai-toolbox/internal/sources/cloudsqlpg"
 	httpsrc "github.com/googleapis/genai-toolbox/internal/sources/http"
+	"github.com/googleapis/genai-toolbox/internal/telemetry"
 	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/internal/tools"
 	"github.com/googleapis/genai-toolbox/internal/tools/http"
 	"github.com/googleapis/genai-toolbox/internal/tools/postgres/postgressql"
+	"github.com/googleapis/genai-toolbox/internal/util"
 	"github.com/spf13/cobra"
 )
 
@@ -174,6 +184,13 @@ func TestServerConfigFlags(t *testing.T) {
 				Stdio: true,
 			}),
 		},
+		{
+			desc: "disable reload",
+			args: []string{"--disable-reload"},
+			want: withDefaults(server.ServerConfig{
+				DisableReload: true,
+			}),
+		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.desc, func(t *testing.T) {
@@ -965,6 +982,184 @@ func TestEnvVarReplacement(t *testing.T) {
 
 }
 
+// normalizeFilepaths is a helper function to allow same filepath formats for Mac and Windows.
+// this prevents needing multiple "want" cases for TestResolveWatcherInputs
+func normalizeFilepaths(m map[string]bool) map[string]bool {
+	newMap := make(map[string]bool)
+	for k, v := range m {
+		newMap[filepath.ToSlash(k)] = v
+	}
+	return newMap
+}
+
+func TestResolveWatcherInputs(t *testing.T) {
+	tcs := []struct {
+		description      string
+		toolsFile        string
+		toolsFiles       []string
+		toolsFolder      string
+		wantWatchDirs    map[string]bool
+		wantWatchedFiles map[string]bool
+	}{
+		{
+			description:      "single tools file",
+			toolsFile:        "tools_folder/example_tools.yaml",
+			toolsFiles:       []string{},
+			toolsFolder:      "",
+			wantWatchDirs:    map[string]bool{"tools_folder": true},
+			wantWatchedFiles: map[string]bool{"tools_folder/example_tools.yaml": true},
+		},
+		{
+			description:      "default tools file (root dir)",
+			toolsFile:        "tools.yaml",
+			toolsFiles:       []string{},
+			toolsFolder:      "",
+			wantWatchDirs:    map[string]bool{".": true},
+			wantWatchedFiles: map[string]bool{"tools.yaml": true},
+		},
+		{
+			description:   "multiple files in different folders",
+			toolsFile:     "",
+			toolsFiles:    []string{"tools_folder/example_tools.yaml", "tools_folder2/example_tools.yaml"},
+			toolsFolder:   "",
+			wantWatchDirs: map[string]bool{"tools_folder": true, "tools_folder2": true},
+			wantWatchedFiles: map[string]bool{
+				"tools_folder/example_tools.yaml":  true,
+				"tools_folder2/example_tools.yaml": true,
+			},
+		},
+		{
+			description:   "multiple files in same folder",
+			toolsFile:     "",
+			toolsFiles:    []string{"tools_folder/example_tools.yaml", "tools_folder/example_tools2.yaml"},
+			toolsFolder:   "",
+			wantWatchDirs: map[string]bool{"tools_folder": true},
+			wantWatchedFiles: map[string]bool{
+				"tools_folder/example_tools.yaml":  true,
+				"tools_folder/example_tools2.yaml": true,
+			},
+		},
+		{
+			description: "multiple files in different levels",
+			toolsFile:   "",
+			toolsFiles: []string{
+				"tools_folder/example_tools.yaml",
+				"tools_folder/special_tools/example_tools2.yaml"},
+			toolsFolder:   "",
+			wantWatchDirs: map[string]bool{"tools_folder": true, "tools_folder/special_tools": true},
+			wantWatchedFiles: map[string]bool{
+				"tools_folder/example_tools.yaml":                true,
+				"tools_folder/special_tools/example_tools2.yaml": true,
+			},
+		},
+		{
+			description:      "tools folder",
+			toolsFile:        "",
+			toolsFiles:       []string{},
+			toolsFolder:      "tools_folder",
+			wantWatchDirs:    map[string]bool{"tools_folder": true},
+			wantWatchedFiles: map[string]bool{},
+		},
+	}
+	for _, tc := range tcs {
+		t.Run(tc.description, func(t *testing.T) {
+			gotWatchDirs, gotWatchedFiles := resolveWatcherInputs(tc.toolsFile, tc.toolsFiles, tc.toolsFolder)
+
+			normalizedGotWatchDirs := normalizeFilepaths(gotWatchDirs)
+			normalizedGotWatchedFiles := normalizeFilepaths(gotWatchedFiles)
+
+			if diff := cmp.Diff(tc.wantWatchDirs, normalizedGotWatchDirs); diff != "" {
+				t.Errorf("incorrect watchDirs: diff %v", diff)
+			}
+			if diff := cmp.Diff(tc.wantWatchedFiles, normalizedGotWatchedFiles); diff != "" {
+				t.Errorf("incorrect watchedFiles: diff %v", diff)
+			}
+
+		})
+	}
+}
+
+// helper function for testing file detection in dynamic reloading
+func tmpFileWithCleanup(content []byte) (string, func(), error) {
+	f, err := os.CreateTemp("", "*")
+	if err != nil {
+		return "", nil, err
+	}
+	cleanup := func() { os.Remove(f.Name()) }
+
+	if _, err := f.Write(content); err != nil {
+		cleanup()
+		return "", nil, err
+	}
+	if err := f.Close(); err != nil {
+		cleanup()
+		return "", nil, err
+	}
+	return f.Name(), cleanup, err
+}
+
+func TestSingleEdit(t *testing.T) {
+	ctx, cancelCtx := context.WithTimeout(context.Background(), time.Minute)
+	defer cancelCtx()
+
+	pr, pw := io.Pipe()
+	defer pw.Close()
+	defer pr.Close()
+
+	fileToWatch, cleanup, err := tmpFileWithCleanup([]byte("initial content"))
+	if err != nil {
+		t.Fatalf("error editing tools file %s", err)
+	}
+	defer cleanup()
+
+	logger, err := log.NewStdLogger(pw, pw, "DEBUG")
+	if err != nil {
+		t.Fatalf("failed to setup logger %s", err)
+	}
+	ctx = util.WithLogger(ctx, logger)
+
+	instrumentation, err := telemetry.CreateTelemetryInstrumentation(versionString)
+	if err != nil {
+		t.Fatalf("failed to setup instrumentation %s", err)
+	}
+	ctx = util.WithInstrumentation(ctx, instrumentation)
+
+	mockServer := &server.Server{}
+
+	cleanFileToWatch := filepath.Clean(fileToWatch)
+	watchDir := filepath.Dir(cleanFileToWatch)
+
+	watchedFiles := map[string]bool{cleanFileToWatch: true}
+	watchDirs := map[string]bool{watchDir: true}
+
+	go watchChanges(ctx, watchDirs, watchedFiles, mockServer)
+
+	// escape backslash so regex doesn't fail on windows filepaths
+	regexEscapedPathFile := strings.ReplaceAll(cleanFileToWatch, `\`, `\\\\*\\`)
+	regexEscapedPathFile = path.Clean(regexEscapedPathFile)
+
+	regexEscapedPathDir := strings.ReplaceAll(watchDir, `\`, `\\\\*\\`)
+	regexEscapedPathDir = path.Clean(regexEscapedPathDir)
+
+	begunWatchingDir := regexp.MustCompile(fmt.Sprintf(`DEBUG "Added directory %s to watcher."`, regexEscapedPathDir))
+	_, err = testutils.WaitForString(ctx, begunWatchingDir, pr)
+	if err != nil {
+		t.Fatalf("timeout or error waiting for watcher to start: %s", err)
+	}
+
+	err = os.WriteFile(fileToWatch, []byte("modification"), 0777)
+	if err != nil {
+		t.Fatalf("error writing to file: %v", err)
+	}
+
+	// only check substring of DEBUG message due to some OS/editors firing different operations
+	detectedFileChange := regexp.MustCompile(fmt.Sprintf(`event detected in %s"`, regexEscapedPathFile))
+	_, err = testutils.WaitForString(ctx, detectedFileChange, pr)
+	if err != nil {
+		t.Fatalf("timeout or error waiting for file to detect write: %s", err)
+	}
+}
+
 func TestPrebuiltTools(t *testing.T) {
 	alloydb_config, _ := prebuiltconfigs.Get("alloydb-postgres")
 	bigquery_config, _ := prebuiltconfigs.Get("bigquery")

cmd/version.txt

@@ -1 +1 @@
-0.8.0
+0.9.0

docs/en/getting-started/colab_quickstart.ipynb

@@ -190,6 +190,18 @@
         "!sudo lsof -i :5432"
       ]
     },
+    {
+      "cell_type": "markdown",
+      "metadata": {},
+      "source": [
+        "## Optional: Enable Vertex AI API for Google Cloud\n",
+        "\n",
+        "If you're using a model hosted on **Vertex AI**, run the following command to enable the API:\n",
+        "\n",
+        "```bash\n",
+        "!gcloud services enable aiplatform.googleapis.com\n"
+      ]
+    },
     {
       "cell_type": "markdown",
       "metadata": {
@@ -222,7 +234,7 @@
       },
       "outputs": [],
       "source": [
-        "version = \"0.8.0\" # x-release-please-version\n",
+        "version = \"0.9.0\" # x-release-please-version\n",
         "! curl -O https://storage.googleapis.com/genai-toolbox/v{version}/linux/amd64/toolbox\n",
         "\n",
         "# Make the binary executable\n",

docs/en/getting-started/introduction/_index.md

@@ -86,7 +86,7 @@ To install Toolbox as a binary:
 
 ```sh
 # see releases page for other versions
-export VERSION=0.8.0
+export VERSION=0.9.0
 curl -O https://storage.googleapis.com/genai-toolbox/v$VERSION/linux/amd64/toolbox
 chmod +x toolbox
 ```
@@ -97,7 +97,7 @@ You can also install Toolbox as a container:
 
 ```sh
 # see releases page for other versions
-export VERSION=0.8.0
+export VERSION=0.9.0
 docker pull us-central1-docker.pkg.dev/database-toolbox/toolbox/toolbox:$VERSION
 ```
 
@@ -108,7 +108,7 @@ To install from source, ensure you have the latest version of
 [Go installed](https://go.dev/doc/install), and then run the following command:
 
 ```sh
-go install github.com/googleapis/genai-toolbox@v0.8.0
+go install github.com/googleapis/genai-toolbox@v0.9.0
 ```
 
 {{% /tab %}}
@@ -123,6 +123,9 @@ execute `toolbox` to start the server:
 ```sh
 ./toolbox --tools-file "tools.yaml"
 ```
+{{< notice note >}}
+Toolbox enables dynamic reloading by default. To disable, use the `--disable-reload` flag.
+{{< /notice >}}
 
 You can use `toolbox help` for a full list of flags! To stop the server, send a
 terminate signal (`ctrl+c` on most platforms).
@@ -135,6 +138,7 @@ out the resources in the [How-to section](../../how-to/_index.md)
 Once your server is up and running, you can load the tools into your
 application. See below the list of Client SDKs for using various frameworks:
 
+#### Python
 {{< tabpane text=true persist=header >}}
 {{% tab header="Core" lang="en" %}}
 
@@ -201,3 +205,384 @@ For more detailed instructions on using the Toolbox Llamaindex SDK, see the
 
 {{% /tab %}}
 {{< /tabpane >}}
+
+#### Javascript/Typescript
+
+Once you've installed the [Toolbox Core
+SDK](https://www.npmjs.com/package/@toolbox-sdk/core), you can load
+tools:
+
+{{< tabpane text=true persist=header >}}
+{{% tab header="Core" lang="en" %}}
+
+{{< highlight javascript >}}
+import { ToolboxClient } from '@toolbox-sdk/core';
+
+// update the url to point to your server
+const URL = 'http://127.0.0.1:5000';
+let client = new ToolboxClient(URL);
+
+// these tools can be passed to your application!
+const toolboxTools = await client.loadToolset('toolsetName');
+{{< /highlight >}}
+
+{{% /tab %}}
+{{% tab header="LangChain/Langraph" lang="en" %}}
+
+{{< highlight javascript >}}
+import { ToolboxClient } from '@toolbox-sdk/core';
+
+// update the url to point to your server
+const URL = 'http://127.0.0.1:5000';
+let client = new ToolboxClient(URL);
+
+// these tools can be passed to your application!
+const toolboxTools = await client.loadToolset('toolsetName');
+
+// Define the basics of the tool: name, description, schema and core logic
+const getTool = (toolboxTool) => tool(currTool, {
+    name: toolboxTool.getName(),
+    description: toolboxTool.getDescription(),
+    schema: toolboxTool.getParamSchema()
+});
+
+// Use these tools in your Langchain/Langraph applications
+const tools = toolboxTools.map(getTool);
+{{< /highlight >}}
+
+{{% /tab %}}
+{{% tab header="Genkit" lang="en" %}}
+
+{{< highlight javascript >}}
+import { ToolboxClient } from '@toolbox-sdk/core';
+import { genkit } from 'genkit';
+
+// Initialise genkit
+const ai = genkit({
+    plugins: [
+        googleAI({
+            apiKey: process.env.GEMINI_API_KEY || process.env.GOOGLE_API_KEY
+        })
+    ],
+    model: googleAI.model('gemini-2.0-flash'),
+});
+
+// update the url to point to your server
+const URL = 'http://127.0.0.1:5000';
+let client = new ToolboxClient(URL);
+
+// these tools can be passed to your application!
+const toolboxTools = await client.loadToolset('toolsetName');
+
+// Define the basics of the tool: name, description, schema and core logic
+const getTool = (toolboxTool) => ai.defineTool({
+    name: toolboxTool.getName(),
+    description: toolboxTool.getDescription(),
+    schema: toolboxTool.getParamSchema()
+}, toolboxTool)
+
+// Use these tools in your Genkit applications
+const tools = toolboxTools.map(getTool);
+{{< /highlight >}}
+
+{{% /tab %}}
+{{% tab header="LlamaIndex" lang="en" %}}
+
+{{< highlight javascript >}}
+import { ToolboxClient } from '@toolbox-sdk/core';
+import { tool } from "llamaindex";
+
+// update the url to point to your server
+const URL = 'http://127.0.0.1:5000';
+let client = new ToolboxClient(URL);
+
+// these tools can be passed to your application!
+const toolboxTools = await client.loadToolset('toolsetName');
+
+// Define the basics of the tool: name, description, schema and core logic
+const getTool = (toolboxTool) => tool({
+    name: toolboxTool.getName(),
+    description: toolboxTool.getDescription(),
+    parameters: toolboxTool.getParams(),
+    execute: toolboxTool
+});;
+
+// Use these tools in your LlamaIndex applications
+const tools = toolboxTools.map(getTool);
+
+{{< /highlight >}}
+
+{{% /tab %}}
+{{< /tabpane >}}
+
+For more detailed instructions on using the Toolbox Core SDK, see the
+[project's README](https://github.com/googleapis/mcp-toolbox-sdk-js/blob/main/packages/toolbox-core/README.md).
+
+#### Go
+
+Once you've installed the [Toolbox Go
+SDK](https://pkg.go.dev/github.com/googleapis/mcp-toolbox-sdk-go/core), you can load
+tools:
+
+{{< tabpane text=true persist=header >}}
+{{% tab header="Core" lang="en" %}}
+
+{{< highlight go >}}
+package main
+
+import (
+	"context"
+	"log"
+
+	"github.com/googleapis/mcp-toolbox-sdk-go/core"
+)
+
+func main() {
+	// update the url to point to your server
+	URL := "http://127.0.0.1:5000"
+	ctx := context.Background()
+
+	client, err := core.NewToolboxClient(URL)
+	if err != nil {
+		log.Fatalf("Failed to create Toolbox client: %v", err)
+	}
+
+	// Framework agnostic tools
+	tools, err := client.LoadToolset("toolsetName", ctx)
+	if err != nil {
+		log.Fatalf("Failed to load tools: %v", err)
+	}
+}
+{{< /highlight >}}
+
+{{% /tab %}}
+{{% tab header="LangChain Go" lang="en" %}}
+
+{{< highlight go >}}
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+
+	"github.com/googleapis/mcp-toolbox-sdk-go/core"
+	"github.com/tmc/langchaingo/llms"
+)
+
+func main() {
+	// Make sure to add the error checks
+	// update the url to point to your server
+	URL := "http://127.0.0.1:5000"
+	ctx := context.Background()
+
+	client, err := core.NewToolboxClient(URL)
+	if err != nil {
+		log.Fatalf("Failed to create Toolbox client: %v", err)
+	}
+
+	// Framework agnostic tool
+	tool, err := client.LoadTool("toolName", ctx)
+	if err != nil {
+		log.Fatalf("Failed to load tools: %v", err)
+	}
+
+	// Fetch the tool's input schema
+	inputschema, err := tool.InputSchema()
+	if err != nil {
+		log.Fatalf("Failed to fetch inputSchema: %v", err)
+	}
+
+	var paramsSchema map[string]any
+	_ = json.Unmarshal(inputschema, &paramsSchema)
+
+	// Use this tool with LangChainGo
+	langChainTool := llms.Tool{
+		Type: "function",
+		Function: &llms.FunctionDefinition{
+			Name:        tool.Name(),
+			Description: tool.Description(),
+			Parameters:  paramsSchema,
+		},
+	}
+}
+{{< /highlight >}}
+
+{{% /tab %}}
+{{% tab header="Genkit Go" lang="en" %}}
+
+{{< highlight go >}}
+package main
+import (
+	"context"
+	"encoding/json"
+	"log"
+
+	"github.com/firebase/genkit/go/ai"
+	"github.com/firebase/genkit/go/genkit"
+	"github.com/googleapis/mcp-toolbox-sdk-go/core"
+	"github.com/invopop/jsonschema"
+)
+
+func main() {
+	// Make sure to add the error checks
+	// Update the url to point to your server
+	URL := "http://127.0.0.1:5000"
+	ctx := context.Background()
+	g, err := genkit.Init(ctx)
+
+	client, err := core.NewToolboxClient(URL)
+	if err != nil {
+		log.Fatalf("Failed to create Toolbox client: %v", err)
+	}
+
+	// Framework agnostic tool
+	tool, err := client.LoadTool("toolName", ctx)
+	if err != nil {
+		log.Fatalf("Failed to load tools: %v", err)
+	}
+
+	// Fetch the tool's input schema
+	inputschema, err := tool.InputSchema()
+	if err != nil {
+		log.Fatalf("Failed to fetch inputSchema: %v", err)
+	}
+
+	var schema *jsonschema.Schema
+	_ = json.Unmarshal(inputschema, &schema)
+
+	executeFn := func(ctx *ai.ToolContext, input any) (string, error) {
+		result, err := tool.Invoke(ctx, input.(map[string]any))
+		if err != nil {
+			// Propagate errors from the tool invocation.
+			return "", err
+		}
+
+		return result.(string), nil
+	}
+
+	// Use this tool with Genkit Go
+	genkitTool := genkit.DefineToolWithInputSchema(
+		g,
+		tool.Name(),
+		tool.Description(),
+		schema,
+		executeFn,
+	)
+}
+{{< /highlight >}}
+
+{{% /tab %}}
+{{% tab header="Go GenAI" lang="en" %}}
+
+{{< highlight go >}}
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+
+	"github.com/googleapis/mcp-toolbox-sdk-go/core"
+	"google.golang.org/genai"
+)
+
+func main() {
+	// Make sure to add the error checks
+	// Update the url to point to your server
+	URL := "http://127.0.0.1:5000"
+	ctx := context.Background()
+
+	client, err := core.NewToolboxClient(URL)
+	if err != nil {
+		log.Fatalf("Failed to create Toolbox client: %v", err)
+	}
+
+	// Framework agnostic tool
+	tool, err := client.LoadTool("toolName", ctx)
+	if err != nil {
+		log.Fatalf("Failed to load tools: %v", err)
+	}
+
+	// Fetch the tool's input schema
+	inputschema, err := tool.InputSchema()
+	if err != nil {
+		log.Fatalf("Failed to fetch inputSchema: %v", err)
+	}
+
+	var schema *genai.Schema
+	_ = json.Unmarshal(inputschema, &schema)
+
+	funcDeclaration := &genai.FunctionDeclaration{
+		Name:        tool.Name(),
+		Description: tool.Description(),
+		Parameters:  schema,
+	}
+
+	// Use this tool with Go GenAI
+	genAITool := &genai.Tool{
+		FunctionDeclarations: []*genai.FunctionDeclaration{funcDeclaration},
+	}
+}
+{{< /highlight >}}
+
+{{% /tab %}}
+
+{{% tab header="OpenAI Go" lang="en" %}}
+
+{{< highlight go >}}
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+
+	"github.com/googleapis/mcp-toolbox-sdk-go/core"
+	openai "github.com/openai/openai-go"
+)
+
+func main() {
+	// Make sure to add the error checks
+	// Update the url to point to your server
+	URL := "http://127.0.0.1:5000"
+	ctx := context.Background()
+
+	client, err := core.NewToolboxClient(URL)
+	if err != nil {
+		log.Fatalf("Failed to create Toolbox client: %v", err)
+	}
+
+	// Framework agnostic tool
+	tool, err := client.LoadTool("toolName", ctx)
+	if err != nil {
+		log.Fatalf("Failed to load tools: %v", err)
+	}
+
+	// Fetch the tool's input schema
+	inputschema, err := tool.InputSchema()
+	if err != nil {
+		log.Fatalf("Failed to fetch inputSchema: %v", err)
+	}
+
+	var paramsSchema openai.FunctionParameters
+	_ = json.Unmarshal(inputschema, &paramsSchema)
+
+	// Use this tool with OpenAI Go
+	openAITool := openai.ChatCompletionToolParam{
+		Function: openai.FunctionDefinitionParam{
+			Name:        tool.Name(),
+			Description: openai.String(tool.Description()),
+			Parameters:  paramsSchema,
+		},
+	}
+}
+{{< /highlight >}}
+
+{{% /tab %}}
+{{< /tabpane >}}
+
+For more detailed instructions on using the Toolbox Go SDK, see the
+[project's README](https://github.com/googleapis/mcp-toolbox-sdk-go/blob/main/core/README.md).
+
+For end-to-end samples on using the Toolbox Go SDK with orchestration frameworks, see the [project's samples](https://github.com/googleapis/mcp-toolbox-sdk-go/tree/main/core/samples)

docs/en/getting-started/local_quickstart.md

@@ -1,9 +1,9 @@
 ---
-title: "Quickstart (Local)"
+title: "Python Quickstart (Local)"
 type: docs
 weight: 2
 description: >
-  How to get started running Toolbox locally with Python, PostgreSQL, and  [Agent Development Kit](https://google.github.io/adk-docs/),
+  How to get started running Toolbox locally with [Python](https://github.com/googleapis/mcp-toolbox-sdk-python), PostgreSQL, and  [Agent Development Kit](https://google.github.io/adk-docs/),
   [LangGraph](https://www.langchain.com/langgraph), [LlamaIndex](https://www.llamaindex.ai/) or [GoogleGenAI](https://pypi.org/project/google-genai/).
 ---
 
@@ -14,8 +14,21 @@ description: >
 This guide assumes you have already done the following:
 
 1. Installed [Python 3.9+][install-python] (including [pip][install-pip] and
-   your preferred virtual environment tool for managing dependencies e.g. [venv][install-venv])
-1. Installed [PostgreSQL 16+ and the `psql` client][install-postgres]
+   your preferred virtual environment tool for managing dependencies e.g. [venv][install-venv]).
+1. Installed [PostgreSQL 16+ and the `psql` client][install-postgres].
+
+### Cloud Setup (Optional)
+
+If you plan to use **Google Cloud’s Vertex AI** with your agent (e.g., using `vertexai=True` or a Google GenAI model), follow these one-time setup steps for local development:
+
+1. [Install the Google Cloud CLI](https://cloud.google.com/sdk/docs/install)
+1. [Set up Application Default Credentials (ADC)](https://cloud.google.com/docs/authentication/set-up-adc-local-dev-environment)
+1. Set your project and enable Vertex AI
+
+    ```bash
+    gcloud config set project YOUR_PROJECT_ID
+    gcloud services enable aiplatform.googleapis.com
+    ```
 
 [install-python]: https://wiki.python.org/moin/BeginnersGuide/Download
 [install-pip]: https://pip.pypa.io/en/stable/installation/
@@ -141,6 +154,7 @@ postgres` and a password next time.
     \q
     ```
 
+
 ## Step 2: Install and configure Toolbox
 
 In this section, we will download Toolbox, configure our tools in a
@@ -156,7 +170,7 @@ In this section, we will download Toolbox, configure our tools in a
     <!-- {x-release-please-start-version} -->
     ```bash
     export OS="linux/amd64" # one of linux/amd64, darwin/arm64, darwin/amd64, or windows/amd64
-    curl -O https://storage.googleapis.com/genai-toolbox/v0.8.0/$OS/toolbox
+    curl -O https://storage.googleapis.com/genai-toolbox/v0.9.0/$OS/toolbox
     ```
     <!-- {x-release-please-end} -->
 
@@ -257,6 +271,9 @@ In this section, we will download Toolbox, configure our tools in a
     ```bash
     ./toolbox --tools-file "tools.yaml"
     ```
+    {{< notice note >}}
+    Toolbox enables dynamic reloading by default. To disable, use the `--disable-reload` flag.
+    {{< /notice >}}
 
 ## Step 3: Connect your agent to Toolbox
 
@@ -629,7 +646,7 @@ asyncio.run(run_application())
 {{< /tab >}}
 {{< /tabpane >}}
 
-  {{< tabpane text=true persist=header >}}
+    {{< tabpane text=true persist=header >}}
 {{% tab header="ADK" lang="en" %}}
 To learn more about Agent Development Kit, check out the [ADK
 documentation.](https://google.github.io/adk-docs/)
@@ -655,3 +672,7 @@ Documentation](https://github.com/googleapis/python-genai?tab=readme-ov-file#man
     ```sh
     python hotel_agent.py
     ```
+
+{{< notice info >}}
+For more information, visit the [Python SDK repo](https://github.com/googleapis/mcp-toolbox-sdk-python).
+{{</ notice >}}

docs/en/getting-started/local_quickstart_js.md

@@ -0,0 +1,490 @@
+---
+title: "JS Quickstart (Local)"
+type: docs
+weight: 3
+description: >
+  How to get started running Toolbox locally with [JavaScript](https://github.com/googleapis/mcp-toolbox-sdk-python), PostgreSQL, and orchestration frameworks such as [LangChain](https://js.langchain.com/docs/introduction/) and [GenkitJS](https://genkit.dev/docs/get-started/).
+---
+
+## Before you begin
+
+This guide assumes you have already done the following:
+
+1. Installed [Node.js (v18 or higher)].
+1. Installed [PostgreSQL 16+ and the `psql` client][install-postgres].
+
+### Cloud Setup (Optional)
+
+If you plan to use **Google Cloud’s Vertex AI** with your agent (e.g., using Gemini or PaLM models), follow these one-time setup steps:
+
+1. [Install the Google Cloud CLI]
+1. [Set up Application Default Credentials (ADC)]
+1. Set your project and enable Vertex AI
+
+    ```bash
+    gcloud config set project YOUR_PROJECT_ID
+    gcloud services enable aiplatform.googleapis.com
+    ```
+
+[Node.js (v18 or higher)]: https://nodejs.org/
+[install-postgres]: https://www.postgresql.org/download/
+[Install the Google Cloud CLI]: https://cloud.google.com/sdk/docs/install
+[Set up Application Default Credentials (ADC)]: https://cloud.google.com/docs/authentication/set-up-adc-local-dev-environment
+
+
+## Step 1: Set up your database
+
+In this section, we will create a database, insert some data that needs to be
+accessed by our agent, and create a database user for Toolbox to connect with.
+
+1. Connect to postgres using the `psql` command:
+
+    ```bash
+    psql -h 127.0.0.1 -U postgres
+    ```
+
+    Here, `postgres` denotes the default postgres superuser.
+
+    {{< notice info >}}
+
+#### **Having trouble connecting?**
+
+* **Password Prompt:** If you are prompted for a password for the `postgres`
+  user and do not know it (or a blank password doesn't work), your PostgreSQL
+  installation might require a password or a different authentication method.
+* **`FATAL: role "postgres" does not exist`:** This error means the default
+  `postgres` superuser role isn't available under that name on your system.
+* **`Connection refused`:** Ensure your PostgreSQL server is actually running.
+  You can typically check with `sudo systemctl status postgresql` and start it
+  with `sudo systemctl start postgresql` on Linux systems.
+
+<br/>
+
+#### **Common Solution**
+
+For password issues or if the `postgres` role seems inaccessible directly, try
+switching to the `postgres` operating system user first. This user often has
+permission to connect without a password for local connections (this is called
+peer authentication).
+
+```bash
+sudo -i -u postgres
+psql -h 127.0.0.1
+```
+
+Once you are in the `psql` shell using this method, you can proceed with the
+database creation steps below. Afterwards, type `\q` to exit `psql`, and then
+`exit` to return to your normal user shell.
+
+If desired, once connected to `psql` as the `postgres` OS user, you can set a
+password for the `postgres` *database* user using: `ALTER USER postgres WITH
+PASSWORD 'your_chosen_password';`. This would allow direct connection with `-U
+postgres` and a password next time.
+    {{< /notice >}}
+
+1. Create a new database and a new user:
+
+    {{< notice tip >}}
+  For a real application, it's best to follow the principle of least permission
+  and only grant the privileges your application needs.
+    {{< /notice >}}
+
+    ```sql
+      CREATE USER toolbox_user WITH PASSWORD 'my-password';
+
+      CREATE DATABASE toolbox_db;
+      GRANT ALL PRIVILEGES ON DATABASE toolbox_db TO toolbox_user;
+
+      ALTER DATABASE toolbox_db OWNER TO toolbox_user;
+    ```
+
+1. End the database session:
+
+    ```bash
+    \q
+    ```
+
+    (If you used `sudo -i -u postgres` and then `psql`, remember you might also
+    need to type `exit` after `\q` to leave the `postgres` user's shell
+    session.)
+
+1. Connect to your database with your new user:
+
+    ```bash
+    psql -h 127.0.0.1 -U toolbox_user -d toolbox_db
+    ```
+
+1. Create a table using the following command:
+
+    ```sql
+    CREATE TABLE hotels(
+      id            INTEGER NOT NULL PRIMARY KEY,
+      name          VARCHAR NOT NULL,
+      location      VARCHAR NOT NULL,
+      price_tier    VARCHAR NOT NULL,
+      checkin_date  DATE    NOT NULL,
+      checkout_date DATE    NOT NULL,
+      booked        BIT     NOT NULL
+    );
+    ```
+
+1. Insert data into the table.
+
+    ```sql
+    INSERT INTO hotels(id, name, location, price_tier, checkin_date, checkout_date, booked)
+    VALUES 
+      (1, 'Hilton Basel', 'Basel', 'Luxury', '2024-04-22', '2024-04-20', B'0'),
+      (2, 'Marriott Zurich', 'Zurich', 'Upscale', '2024-04-14', '2024-04-21', B'0'),
+      (3, 'Hyatt Regency Basel', 'Basel', 'Upper Upscale', '2024-04-02', '2024-04-20', B'0'),
+      (4, 'Radisson Blu Lucerne', 'Lucerne', 'Midscale', '2024-04-24', '2024-04-05', B'0'),
+      (5, 'Best Western Bern', 'Bern', 'Upper Midscale', '2024-04-23', '2024-04-01', B'0'),
+      (6, 'InterContinental Geneva', 'Geneva', 'Luxury', '2024-04-23', '2024-04-28', B'0'),
+      (7, 'Sheraton Zurich', 'Zurich', 'Upper Upscale', '2024-04-27', '2024-04-02', B'0'),
+      (8, 'Holiday Inn Basel', 'Basel', 'Upper Midscale', '2024-04-24', '2024-04-09', B'0'),
+      (9, 'Courtyard Zurich', 'Zurich', 'Upscale', '2024-04-03', '2024-04-13', B'0'),
+      (10, 'Comfort Inn Bern', 'Bern', 'Midscale', '2024-04-04', '2024-04-16', B'0');
+    ```
+
+1. End the database session:
+
+    ```bash
+    \q
+    ```
+
+## Step 2: Install and configure Toolbox
+
+In this section, we will download Toolbox, configure our tools in a
+`tools.yaml`, and then run the Toolbox server.
+
+1. Download the latest version of Toolbox as a binary:
+
+    {{< notice tip >}}
+  Select the
+  [correct binary](https://github.com/googleapis/genai-toolbox/releases)
+  corresponding to your OS and CPU architecture.
+    {{< /notice >}}
+    <!-- {x-release-please-start-version} -->
+    ```bash
+    export OS="linux/amd64" # one of linux/amd64, darwin/arm64, darwin/amd64, or windows/amd64
+    curl -O https://storage.googleapis.com/genai-toolbox/v0.9.0/$OS/toolbox
+    ```
+    <!-- {x-release-please-end} -->
+
+1. Make the binary executable:
+
+    ```bash
+    chmod +x toolbox
+    ```
+
+1. Write the following into a `tools.yaml` file. Be sure to update any fields
+   such as `user`, `password`, or `database` that you may have customized in the
+   previous step.
+
+    {{< notice tip >}}
+  In practice, use environment variable replacement with the format ${ENV_NAME}
+  instead of hardcoding your secrets into the configuration file.
+    {{< /notice >}}
+
+    ```yaml
+    sources:
+      my-pg-source:
+        kind: postgres
+        host: 127.0.0.1
+        port: 5432
+        database: toolbox_db
+        user: ${USER_NAME}
+        password: ${PASSWORD}
+    tools:
+      search-hotels-by-name:
+        kind: postgres-sql
+        source: my-pg-source
+        description: Search for hotels based on name.
+        parameters:
+          - name: name
+            type: string
+            description: The name of the hotel.
+        statement: SELECT * FROM hotels WHERE name ILIKE '%' || $1 || '%';
+      search-hotels-by-location:
+        kind: postgres-sql
+        source: my-pg-source
+        description: Search for hotels based on location.
+        parameters:
+          - name: location
+            type: string
+            description: The location of the hotel.
+        statement: SELECT * FROM hotels WHERE location ILIKE '%' || $1 || '%';
+      book-hotel:
+        kind: postgres-sql
+        source: my-pg-source
+        description: >-
+           Book a hotel by its ID. If the hotel is successfully booked, returns a NULL, raises an error if not.
+        parameters:
+          - name: hotel_id
+            type: string
+            description: The ID of the hotel to book.
+        statement: UPDATE hotels SET booked = B'1' WHERE id = $1;
+      update-hotel:
+        kind: postgres-sql
+        source: my-pg-source
+        description: >-
+          Update a hotel's check-in and check-out dates by its ID. Returns a message
+          indicating  whether the hotel was successfully updated or not.
+        parameters:
+          - name: hotel_id
+            type: string
+            description: The ID of the hotel to update.
+          - name: checkin_date
+            type: string
+            description: The new check-in date of the hotel.
+          - name: checkout_date
+            type: string
+            description: The new check-out date of the hotel.
+        statement: >-
+          UPDATE hotels SET checkin_date = CAST($2 as date), checkout_date = CAST($3
+          as date) WHERE id = $1;
+      cancel-hotel:
+        kind: postgres-sql
+        source: my-pg-source
+        description: Cancel a hotel by its ID.
+        parameters:
+          - name: hotel_id
+            type: string
+            description: The ID of the hotel to cancel.
+        statement: UPDATE hotels SET booked = B'0' WHERE id = $1;
+   toolsets:
+      my-toolset:
+        - search-hotels-by-name
+        - search-hotels-by-location
+        - book-hotel
+        - update-hotel
+        - cancel-hotel
+    ```
+
+    For more info on tools, check out the `Resources` section of the docs.
+
+1. Run the Toolbox server, pointing to the `tools.yaml` file created earlier:
+
+    ```bash
+    ./toolbox --tools-file "tools.yaml"
+    ```
+  {{< notice note >}}
+    Toolbox enables dynamic reloading by default. To disable, use the `--disable-reload` flag.
+  {{< /notice >}}
+
+## Step 3: Connect your agent to Toolbox
+
+In this section, we will write and run an agent that will load the Tools
+from Toolbox.
+
+1. (Optional) Initialize a Node.js project:
+
+    ```bash
+    npm init -y
+    ```
+
+1. In a new terminal, install the [SDK](https://www.npmjs.com/package/@toolbox-sdk/core).
+
+    ```bash
+    npm install langchain @toolbox-sdk/core
+    ```
+
+1. Install other required dependencies
+
+   {{< tabpane persist=header >}}
+{{< tab header="LangChain" lang="bash" >}}
+npm install langchain @langchain/google-vertexai
+{{< /tab >}}
+{{< tab header="GenkitJS" lang="bash" >}}
+npm install genkit @genkit-ai/vertexai
+{{< /tab >}}
+{{< /tabpane >}}
+
+1. Create a new file named `hotelAgent.js` and copy the following code to create an agent:
+
+    {{< tabpane persist=header >}}
+{{< tab header="LangChain" lang="js" >}}
+
+import { ChatVertexAI } from "@langchain/google-vertexai";
+import { ToolboxClient } from "@toolbox-sdk/core";
+import { tool } from "@langchain/core/tools";
+import { createReactAgent } from "@langchain/langgraph/prebuilt";
+import { MemorySaver } from "@langchain/langgraph";
+
+// Replace it with your API key
+process.env.GOOGLE_API_KEY = 'your-api-key';
+
+const prompt = `
+You're a helpful hotel assistant. You handle hotel searching, booking, and
+cancellations. When the user searches for a hotel, mention its name, id,
+location and price tier. Always mention hotel ids while performing any
+searches. This is very important for any operations. For any bookings or
+cancellations, please provide the appropriate confirmation. Be sure to
+update checkin or checkout dates if mentioned by the user.
+Don't ask for confirmations from the user.
+`;
+
+const queries = [
+  "Find hotels in Basel with Basel in its name.",
+  "Can you book the Hilton Basel for me?",
+  "Oh wait, this is too expensive. Please cancel it and book the Hyatt Regency instead.",
+  "My check in dates would be from April 10, 2024 to April 19, 2024.",
+];
+
+async function runApplication() {
+  const model = new ChatVertexAI({
+    model: "gemini-2.0-flash",
+  });
+
+
+  const client = new ToolboxClient("http://127.0.0.1:5000");
+  const toolboxTools = await client.loadToolset("my-toolset");
+
+  // Define the basics of the tool: name, description, schema and core logic
+  const getTool = (toolboxTool) => tool(toolboxTool, {
+    name: toolboxTool.getName(),
+    description: toolboxTool.getDescription(),
+    schema: toolboxTool.getParamSchema()
+  });
+  const tools = toolboxTools.map(getTool);
+
+  const agent = createReactAgent({
+    llm: model,
+    tools: tools,
+    checkpointer: new MemorySaver(),
+    systemPrompt: prompt,
+  });
+
+  const langGraphConfig = {
+    configurable: {
+        thread_id: "test-thread",
+    },
+  };
+
+
+  for (const query of queries) {
+    const agentOutput = await agent.invoke(
+    {
+        messages: [
+        {
+            role: "user",
+            content: query,
+        },
+        ],
+        verbose: true,
+    },
+    langGraphConfig
+    );
+    const response = agentOutput.messages[agentOutput.messages.length - 1].content;
+    console.log(response);
+  }
+}
+
+runApplication()
+  .catch(console.error)
+  .finally(() => console.log("\nApplication finished."));
+
+{{< /tab >}}
+
+{{< tab header="GenkitJS" lang="js" >}}
+
+import { ToolboxClient } from "@toolbox-sdk/core";
+import { genkit } from "genkit";
+import { googleAI } from '@genkit-ai/googleai';
+
+// Replace it with your API key
+process.env.GOOGLE_API_KEY = 'your-api-key';
+
+const systemPrompt = `
+You're a helpful hotel assistant. You handle hotel searching, booking, and
+cancellations. When the user searches for a hotel, mention its name, id,
+location and price tier. Always mention hotel ids while performing any
+searches. This is very important for any operations. For any bookings or
+cancellations, please provide the appropriate confirmation. Be sure to
+update checkin or checkout dates if mentioned by the user.
+Don't ask for confirmations from the user.
+`;
+
+const queries = [
+  "Find hotels in Basel with Basel in its name.",
+  "Can you book the Hilton Basel for me?",
+  "Oh wait, this is too expensive. Please cancel it and book the Hyatt Regency instead.",
+  "My check in dates would be from April 10, 2024 to April 19, 2024.",
+];
+
+async function run() {
+  const toolboxClient = new ToolboxClient("http://127.0.0.1:5000");
+
+  const ai = genkit({
+    plugins: [
+      googleAI({
+        apiKey: process.env.GEMINI_API_KEY || process.env.GOOGLE_API_KEY
+      })
+    ],
+    model: googleAI.model('gemini-2.0-flash'),
+  });
+
+  const toolboxTools = await toolboxClient.loadToolset("my-toolset");
+  const toolMap = Object.fromEntries(
+    toolboxTools.map((tool) => {
+      const definedTool = ai.defineTool(
+        {
+          name: tool.getName(),
+          description: tool.getDescription(),
+          inputSchema: tool.getParamSchema(),
+        },
+        tool
+      );
+      return [tool.getName(), definedTool];
+    })
+  );
+  const tools = Object.values(toolMap);
+
+  let conversationHistory = [{ role: "system", content: [{ text: systemPrompt }] }];
+
+  for (const query of queries) {
+    conversationHistory.push({ role: "user", content: [{ text: query }] });
+    const response = await ai.generate({
+      messages: conversationHistory,
+      tools: tools,
+    });
+    conversationHistory.push(response.message);
+
+    const toolRequests = response.toolRequests;
+    if (toolRequests?.length > 0) {
+      // Execute tools concurrently and collect their responses.
+      const toolResponses = await Promise.all(
+        toolRequests.map(async (call) => {
+          try {
+            const toolOutput = await toolMap[call.name].invoke(call.input);
+            return { role: "tool", content: [{ toolResponse: { name: call.name, output: toolOutput } }] };
+          } catch (e) {
+            console.error(`Error executing tool ${call.name}:`, e);
+            return { role: "tool", content: [{ toolResponse: { name: call.name, output: { error: e.message } } }] };
+          }
+        })
+      );
+      
+      conversationHistory.push(...toolResponses);
+      
+      // Call the AI again with the tool results.
+      response = await ai.generate({ messages: conversationHistory, tools });
+      conversationHistory.push(response.message);
+    }
+    
+    console.log(response.text);
+  }
+}
+
+run();
+{{< /tab >}}
+{{< /tabpane >}}
+
+1. Run your agent, and observe the results:
+
+    ```sh
+    node hotelAgent.js
+    ```
+
+{{< notice info >}}
+For more information, visit the [JS SDK repo](https://github.com/googleapis/mcp-toolbox-sdk-js).
+{{</ notice >}}

docs/en/getting-started/mcp_quickstart/_index.md

@@ -105,7 +105,7 @@ In this section, we will download Toolbox, configure our tools in a
     <!-- {x-release-please-start-version} -->
     ```bash
     export OS="linux/amd64" # one of linux/amd64, darwin/arm64, darwin/amd64, or windows/amd64
-    curl -O https://storage.googleapis.com/genai-toolbox/v0.8.0/$OS/toolbox
+    curl -O https://storage.googleapis.com/genai-toolbox/v0.9.0/$OS/toolbox
     ```
     <!-- {x-release-please-end} -->
 
@@ -218,17 +218,25 @@ In this section, we will download Toolbox, configure our tools in a
 
 1. Type `y` when it asks to install the inspector package.
 
-1. It should show the following when the MCP Inspector is up and running:
+1. It should show the following when the MCP Inspector is up and running (please take note of `<YOUR_SESSION_TOKEN>`):
 
     ```bash
-    🔍 MCP Inspector is up and running at http://127.0.0.1:5173 🚀
+    Starting MCP inspector...
+    ⚙️ Proxy server listening on localhost:6277
+    🔑 Session token: <YOUR_SESSION_TOKEN>
+       Use this token to authenticate requests or set DANGEROUSLY_OMIT_AUTH=true to disable auth
+
+    🚀 MCP Inspector is up and running at:
+       http://localhost:6274/?MCP_PROXY_AUTH_TOKEN=<YOUR_SESSION_TOKEN>
     ```
 
 1. Open the above link in your browser.
 
-1. For `Transport Type`, select `SSE`.
+1. For `Transport Type`, select `Streamable HTTP`.
 
-1. For `URL`, type in `http://127.0.0.1:5000/mcp/sse`.
+1. For `URL`, type in `http://127.0.0.1:5000/mcp`.
+
+1. For `Configuration` -> `Proxy Session Token`, make sure `<YOUR_SESSION_TOKEN>` is present.
 
 1. Click Connect.
 
@@ -238,4 +246,4 @@ In this section, we will download Toolbox, configure our tools in a
 
     ![inspector_tools](./inspector_tools.png)
 
-1. Test out your tools here!
+1. Test out your tools here!

docs/en/how-to/connect-ide/postgres_mcp.md

@@ -52,19 +52,19 @@ Omni](https://cloud.google.com/alloydb/omni/current/docs/overview).
    <!-- {x-release-please-start-version} -->
    {{< tabpane persist=header >}}
 {{< tab header="linux/amd64" lang="bash" >}}
-curl -O <https://storage.googleapis.com/genai-toolbox/v0.8.0/linux/amd64/toolbox>
+curl -O <https://storage.googleapis.com/genai-toolbox/v0.9.0/linux/amd64/toolbox>
 {{< /tab >}}
 
 {{< tab header="darwin/arm64" lang="bash" >}}
-curl -O <https://storage.googleapis.com/genai-toolbox/v0.8.0/darwin/arm64/toolbox>
+curl -O <https://storage.googleapis.com/genai-toolbox/v0.9.0/darwin/arm64/toolbox>
 {{< /tab >}}
 
 {{< tab header="darwin/amd64" lang="bash" >}}
-curl -O <https://storage.googleapis.com/genai-toolbox/v0.8.0/darwin/amd64/toolbox>
+curl -O <https://storage.googleapis.com/genai-toolbox/v0.9.0/darwin/amd64/toolbox>
 {{< /tab >}}
 
 {{< tab header="windows/amd64" lang="bash" >}}
-curl -O <https://storage.googleapis.com/genai-toolbox/v0.8.0/windows/amd64/toolbox>
+curl -O <https://storage.googleapis.com/genai-toolbox/v0.9.0/windows/amd64/toolbox>
 {{< /tab >}}
 {{< /tabpane >}}
     <!-- {x-release-please-end} -->

docs/en/how-to/connect_via_mcp.md

@@ -20,18 +20,16 @@ The native SDKs can be combined with MCP clients in many cases.
 
 Toolbox currently supports the following versions of MCP specification:
 
-* [2024-11-05](https://spec.modelcontextprotocol.io/specification/2024-11-05/)
+* [2025-06-18](https://modelcontextprotocol.io/specification/2025-06-18)
+* [2025-03-26](https://modelcontextprotocol.io/specification/2025-03-26)
+* [2024-11-05](https://modelcontextprotocol.io/specification/2024-11-05)
 
-### Features Not Supported by MCP
+### Toolbox AuthZ/AuthN Not Supported by MCP
 
-Toolbox has several features that are not yet supported in the MCP specification:
-
-* **AuthZ/AuthN:** There are no auth implementation in the `2024-11-05`
-  specification. This includes:
+The auth implementation in Toolbox is not supported in MCP's auth specification.
+This includes:
   * [Authenticated Parameters](../resources/tools/_index.md#authenticated-parameters)
   * [Authorized Invocations](../resources/tools/_index.md#authorized-invocations)
-* **Notifications:** Currently, editing Toolbox Tools requires a server restart.
-  Clients should reload tools on disconnect to get the latest version.
 
 ## Connecting to Toolbox with an MCP client
 
@@ -63,11 +61,15 @@ When running with stdio, Toolbox will listen via stdio instead of acting as a
 remote HTTP server. Logs will be set to the `warn` level by default. `debug` and
 `info` logs are not supported with stdio.
 
+{{< notice note >}}
+Toolbox enables dynamic reloading by default. To disable, use the `--disable-reload` flag.
+{{< /notice >}}
+
 ### Connecting via HTTP
 
 Toolbox supports the HTTP transport protocol with and without SSE.
 
-{{< tabpane text=true >}} {{% tab header="HTTP with SSE" lang="en" %}}
+{{< tabpane text=true >}} {{% tab header="HTTP with SSE (deprecated)" lang="en" %}}
 Add the following configuration to your MCP client configuration:
 
 ```bash
@@ -83,11 +85,25 @@ Add the following configuration to your MCP client configuration:
 
 If you would like to connect to a specific toolset, replace `url` with
 `"http://127.0.0.1:5000/mcp/{toolset_name}/sse"`.
-{{% /tab %}} {{% tab header="HTTP POST" lang="en" %}}
-Connect to Toolbox HTTP POST via `http://127.0.0.1:5000/mcp`.
 
-If you would like to connect to a specific toolset, connect via
-`http://127.0.0.1:5000/mcp/{toolset_name}`.
+HTTP with SSE is only supported in version `2024-11-05` and is currently
+deprecated.
+{{% /tab %}} {{% tab header="Streamable HTTP" lang="en" %}}
+Add the following configuration to your MCP client configuration:
+
+```bash
+{
+  "mcpServers": {
+    "toolbox": {
+      "type": "http",
+      "url": "http://127.0.0.1:5000/mcp",
+    }
+  }
+}
+```
+
+If you would like to connect to a specific toolset, replace `url` with
+`"http://127.0.0.1:5000/mcp/{toolset_name}"`.
 {{% /tab %}} {{< /tabpane >}}
 
 ### Using the MCP Inspector with Toolbox
@@ -114,7 +130,7 @@ testing and debugging Toolbox server.
 1. Click the `Connect` button. It might take awhile to spin up Toolbox. Voila!
    You should be able to inspect your toolbox tools!
 {{% /tab %}}
-{{% tab header="HTTP with SSE" lang="en" %}}
+{{% tab header="HTTP with SSE (deprecated)" lang="en" %}}
 1. [Run Toolbox](../getting-started/introduction/_index.md#running-the-server).
 
 1. In a separate terminal, run Inspector directly through `npx`:
@@ -128,6 +144,23 @@ testing and debugging Toolbox server.
 1. For `URL`, type in `http://127.0.0.1:5000/mcp/sse` to use all tool or
    `http//127.0.0.1:5000/mcp/{toolset_name}/sse` to use a specific toolset.
 
+1. Click the `Connect` button. Voila! You should be able to inspect your toolbox
+   tools!
+{{% /tab %}}
+{{% tab header="Streamable HTTP" lang="en" %}}
+1. [Run Toolbox](../getting-started/introduction/_index.md#running-the-server).
+
+1. In a separate terminal, run Inspector directly through `npx`:
+
+    ```bash
+    npx @modelcontextprotocol/inspector
+    ```
+
+1. For `Transport Type` dropdown menu, select `Streamable HTTP`.
+
+1. For `URL`, type in `http://127.0.0.1:5000/mcp` to use all tool or
+   `http//127.0.0.1:5000/mcp/{toolset_name}` to use a specific toolset.
+
 1. Click the `Connect` button. Voila! You should be able to inspect your toolbox
    tools!
 {{% /tab %}} {{< /tabpane >}}

docs/en/how-to/deploy_toolbox.md

@@ -79,7 +79,7 @@ database are in the same VPC network.
 
 Create a `tools.yaml` file that contains your configuration for Toolbox. For
 details, see the
-[configuration](https://github.com/googleapis/genai-toolbox/blob/main/README.md#configuration)
+[configuration](https://googleapis.github.io/genai-toolbox/resources/sources/)
 section.
 
 ## Deploy to Cloud Run

docs/en/resources/sources/mysql.md

@@ -4,7 +4,6 @@ type: docs
 weight: 1
 description: >
   MySQL is a relational database management system that stores and manages data.
-
 ---
 
 ## About
@@ -35,6 +34,7 @@ sources:
         database: my_db
         user: ${USER_NAME}
         password: ${PASSWORD}
+        queryTimeout: 30s # Optional: query timeout duration
 ```
 
 {{< notice tip >}}
@@ -44,11 +44,12 @@ instead of hardcoding your secrets into the configuration file.
 
 ## Reference
 
-| **field** | **type** | **required** | **description**                                                                             |
-|-----------|:--------:|:------------:|---------------------------------------------------------------------------------------------|
-| kind      |  string  |     true     | Must be "mysql".                                                                            |
-| host      |  string  |     true     | IP address to connect to (e.g. "127.0.0.1").                                                |
-| port      |  string  |     true     | Port to connect to (e.g. "3306").                                                           |
-| database  |  string  |     true     | Name of the MySQL database to connect to (e.g. "my_db").                                    |
-| user      |  string  |     true     | Name of the MySQL user to connect as (e.g. "my-mysql-user").                                |
-| password  |  string  |     true     | Password of the MySQL user (e.g. "my-password").                                            |
+| **field**    | **type** | **required** | **description**                                                                                 |
+| ------------ | :------: | :----------: | ----------------------------------------------------------------------------------------------- |
+| kind         |  string  |     true     | Must be "mysql".                                                                                |
+| host         |  string  |     true     | IP address to connect to (e.g. "127.0.0.1").                                                    |
+| port         |  string  |     true     | Port to connect to (e.g. "3306").                                                               |
+| database     |  string  |     true     | Name of the MySQL database to connect to (e.g. "my_db").                                        |
+| user         |  string  |     true     | Name of the MySQL user to connect as (e.g. "my-mysql-user").                                    |
+| password     |  string  |     true     | Password of the MySQL user (e.g. "my-password").                                                |
+| queryTimeout |  string  |    false     | Maximum time to wait for query execution (e.g. "30s", "2m"). By default, no timeout is applied. |

docs/en/resources/sources/redis.md

@@ -33,7 +33,7 @@ sources:
     my-redis-instance:
      kind: redis
      address:
-       - 127.0.0.1
+       - 127.0.0.1:6379
      username: ${MY_USER_NAME}
      password: ${MY_AUTH_STRING} # Omit this field if you don't have a password.
      # database: 0
@@ -58,7 +58,7 @@ sources:
     my-redis-cluster-instance:
      kind: memorystore-redis
      address:
-       - 127.0.0.1
+       - 127.0.0.1:6379
      password: ${MY_AUTH_STRING}
      # useGCPIAM: false
      # clusterEnabled: false
@@ -74,7 +74,8 @@ using IAM authentication:
 sources:
     my-redis-cluster-instance:
      kind: memorystore-redis
-     address: 127.0.0.1
+     address:
+       - 127.0.0.1:6379
      useGCPIAM: true
      clusterEnabled: true
 ```

docs/en/resources/sources/valkey.md

@@ -17,7 +17,7 @@ sets, sorted sets with range queries, bitmaps, hyperloglogs, and geospatial
 indexes with radius queries.
 
 If you're new to Valkey, you can find installation and getting started guides on
-the [official Valkey website](https://valkey.io/docs/getting-started/).
+the [official Valkey website](https://valkey.io/topics/quickstart/).
 
 ## Example
 
@@ -26,7 +26,7 @@ sources:
     my-valkey-instance:
      kind: valkey
      address:
-       - 127.0.0.1
+       - 127.0.0.1:6379
      username: ${YOUR_USERNAME}
      password: ${YOUR_PASSWORD}
      # database: 0
@@ -50,7 +50,7 @@ sources:
     my-valkey-instance:
      kind: valkey
      address:
-       - 127.0.0.1
+       - 127.0.0.1:6379
      useGCPIAM: true
 ```
 

docs/en/resources/tools/_index.md

@@ -77,12 +77,12 @@ the parameter.
         description: Airline unique 2 letter identifier
 ```
 
-| **field**   | **type**        | **required** | **description**                                                             |
-|-------------|:---------------:|:------------:|-----------------------------------------------------------------------------|
-| name        |  string         |     true     | Name of the parameter.                                                      |
-| type        |  string         |     true     | Must be one of "string", "integer", "float", "boolean" "array"              |
-| default     |  parameter type |     false    | Default value of the parameter. If provided, the parameter is not required. |
-| description |  string         |     true     | Natural language description of the parameter to describe it to the agent.  |
+| **field**   |    **type**    | **required** | **description**                                                             |
+|-------------|:--------------:|:------------:|-----------------------------------------------------------------------------|
+| name        |     string     |     true     | Name of the parameter.                                                      |
+| type        |     string     |     true     | Must be one of "string", "integer", "float", "boolean" "array"              |
+| default     | parameter type |    false     | Default value of the parameter. If provided, the parameter is not required. |
+| description |     string     |     true     | Natural language description of the parameter to describe it to the agent.  |
 
 ### Array Parameters
 
@@ -107,7 +107,7 @@ in the list using the items field:
 |-------------|:----------------:|:------------:|-----------------------------------------------------------------------------|
 | name        |      string      |     true     | Name of the parameter.                                                      |
 | type        |      string      |     true     | Must be "array"                                                             |
-| default     |  parameter type  |     false    | Default value of the parameter. If provided, the parameter is not required. |
+| default     |  parameter type  |    false     | Default value of the parameter. If provided, the parameter is not required. |
 | description |      string      |     true     | Natural language description of the parameter to describe it to the agent.  |
 | items       | parameter object |     true     | Specify a Parameter object for the type of the values in the array.         |
 
@@ -115,6 +115,43 @@ in the list using the items field:
 Items in array should not have a default value. If provided, it will be ignored.
 {{< /notice >}}
 
+### Object Parameters
+
+The object type is a collection of key-value pairs passed in as a single
+parameter. To use the object type, you must specify the schema for each
+key-value pair using the properties field.
+
+```yaml
+parameters:
+      - name: new_user
+        type: object
+        description: A new user's profile information.
+        properties:
+          name:
+            type: string
+            description: The full name of the user.
+          age:
+            type: integer
+            description: The age of the user.
+          is_subscriber:
+            type: boolean
+            description: Whether the user is a subscriber.
+    statement: |
+      INSERT INTO users (name, age, is_subscriber) VALUES ($1->>'name', ($1->>'age')::integer, ($1->>'is_subscriber')::boolean);
+```
+
+| **field**   |         **type**         | **required** | **description**                                                                                                     |
+|-------------|:------------------------:|:------------:|---------------------------------------------------------------------------------------------------------------------|
+| name        |          string          |     true     | Name of the parameter.                                                                                              |
+| type        |          string          |     true     | Must be "object"                                                                                                    |
+| default     |      parameter type      |    false     | Default value of the parameter. If provided, the parameter is not required.                                         |
+| description |          string          |     true     | Natural language description of the parameter to describe it to the agent.                                          |
+| properties  | map of parameter objects |     true     | A map where each key is a property name and each value is a Parameter object defining the schema for that property. |
+
+{{< notice note >}}
+Properties within an object should not have a default value. If provided, it will be ignored. A default can only be provided for the top-level object parameter.
+{{< /notice >}}
+
 ### Authenticated Parameters
 
 Authenticated parameters are automatically populated with user
@@ -143,10 +180,10 @@ user's ID token.
                 field: sub
 ```
 
-| **field** | **type** | **required** | **description**                                                                         |
-|-----------|:--------:|:------------:|-----------------------------------------------------------------------------------------|
+| **field** | **type** | **required** | **description**                                                                 |
+|-----------|:--------:|:------------:|---------------------------------------------------------------------------------|
 | name      |  string  |     true     | Name of the [authServices](../authservices) used to verify the OIDC auth token. |
-| field     |  string  |     true     | Claim field decoded from the OIDC token used to auto-populate this parameter.           |
+| field     |  string  |     true     | Claim field decoded from the OIDC token used to auto-populate this parameter.   |
 
 ### Template Parameters
 
@@ -195,12 +232,12 @@ tools:
           description: Name of a column to select
 ```
 
-| **field**   | **type**         | **required**  | **description**                                                                     |
-|-------------|:----------------:|:-------------:|-------------------------------------------------------------------------------------|
-| name        |  string          |     true      | Name of the template parameter.                                                     |
-| type        |  string          |     true      | Must be one of "string", "integer", "float", "boolean" "array"                      |
-| description |  string          |     true      | Natural language description of the template parameter to describe it to the agent. |
-| items       | parameter object |true (if array)| Specify a Parameter object for the type of the values in the array (string only).   |
+| **field**   |     **type**     |  **required**   | **description**                                                                     |
+|-------------|:----------------:|:---------------:|-------------------------------------------------------------------------------------|
+| name        |      string      |      true       | Name of the template parameter.                                                     |
+| type        |      string      |      true       | Must be one of "string", "integer", "float", "boolean" "array"                      |
+| description |      string      |      true       | Natural language description of the template parameter to describe it to the agent. |
+| items       | parameter object | true (if array) | Specify a Parameter object for the type of the values in the array (string only).   |
 
 ## Authorized Invocations
 

docs/en/resources/tools/bigquery/bigquery-get-dataset-info.md

@@ -15,8 +15,10 @@ It's compatible with the following sources:
 
 - [bigquery](../sources/bigquery.md)
 
-bigquery-get-dataset-info takes a dataset parameter to specify the dataset
-on the given source.
+`bigquery-get-dataset-info` takes a `dataset` parameter to specify the dataset
+on the given source. It also optionally accepts a `project` parameter to 
+define the Google Cloud project ID. If the `project` parameter is not provided,
+the tool defaults to using the project defined in the source configuration.
 
 ## Example
 

docs/en/resources/tools/bigquery/bigquery-get-table-info.md

@@ -15,8 +15,10 @@ It's compatible with the following sources:
 
 - [bigquery](../sources/bigquery.md)
 
-bigquery-get-table-info takes dataset and table parameters to specify
-the target table.
+`bigquery-get-table-info` takes `dataset` and `table` parameters to specify
+the target table. It also optionally accepts a `project` parameter to define 
+the Google Cloud project ID. If the `project` parameter is not provided, the 
+tool defaults to using the project defined in the source configuration.
 
 ## Example
 

docs/en/resources/tools/bigquery/bigquery-list-dataset-ids.md

@@ -15,8 +15,9 @@ It's compatible with the following sources:
 
 - [bigquery](../sources/bigquery.md)
 
-bigquery-list-dataset-ids requires no input parameters beyond the configured
-source.
+`bigquery-list-dataset-ids` optionally accepts a `project` parameter to define 
+the Google Cloud project ID. If the `project` parameter is not provided, the 
+tool defaults to using the project defined in the source configuration.
 
 ## Example
 

docs/en/resources/tools/bigquery/bigquery-list-table-ids.md

@@ -15,8 +15,10 @@ It's compatible with the following sources:
 
 - [bigquery](../sources/bigquery.md)
 
-bigquery-get-dataset-info takes a dataset parameter to specify the dataset
-from which to list table IDs.
+`bigquery-get-dataset-info` takes a required `dataset` parameter to specify the dataset
+from which to list table IDs. It also optionally accepts a `project` parameter to 
+define the Google Cloud project ID. If the `project` parameter is not provided, the 
+tool defaults to using the project defined in the source configuration.
 
 ## Example
 

docs/en/resources/tools/bigtable/bigtable-sql.md

@@ -20,8 +20,11 @@ instance. It's compatible with any of the following sources:
 
 Bigtable supports SQL queries. The integration with Toolbox supports `googlesql`
 dialect, the specified SQL statement is executed as a [data manipulation
-language (DML)][bigtable-googlesql] statements, and specified parameters will
-inserted according to their name: e.g. `@name`.
+language (DML)][bigtable-googlesql] statements, and specified parameters will inserted according to their name: e.g. `@name`.
+
+{{<notice note>}}
+  Bigtable's GoogleSQL support for DML statements might be limited to certain query types. For detailed information on supported DML statements and use cases, refer to the [Bigtable GoogleSQL use cases](https://cloud.google.com/bigtable/docs/googlesql-overview#use-cases).
+{{</notice>}}
 
 [bigtable-googlesql]: https://cloud.google.com/bigtable/docs/googlesql-overview
 

docs/en/resources/tools/utility/wait.md

@@ -0,0 +1,37 @@
+---
+title: "wait"
+type: docs
+weight: 1
+description: > 
+  A "wait" tool pauses execution for a specified duration.
+aliases:
+- /resources/tools/utility/wait
+---
+
+## About
+
+A `wait` tool pauses execution for a specified duration. This can be useful in workflows where a delay is needed between steps.
+
+`wait` takes one input parameter `duration` which is a string representing the time to wait (e.g., "10s", "2m", "1h").
+
+{{% notice info %}} 
+This tool is intended for developer assistant workflows with human-in-the-loop and shouldn't be used for production agents.
+{{% /notice %}}
+
+## Example
+
+```yaml
+tools:
+  wait_for_tool:
+    kind: wait
+    description: Use this tool to pause execution for a specified duration.
+    timeout: 30s
+```
+
+## Reference
+
+| **field**   |                  **type**                  | **required** | **description**                                                                                  |
+|-------------|:------------------------------------------:|:------------:|--------------------------------------------------------------------------------------------------|
+| kind        |                   string                   |     true     | Must be "wait".                                                                     |
+| description |                   string                   |     true     | Description of the tool that is passed to the LLM.                                               |
+| timeout     |                   string                   |     true     | The default duration the tool can wait for.                                                      |

docs/en/samples/bigquery/colab_quickstart_bigquery.ipynb

@@ -220,7 +220,7 @@
       },
       "outputs": [],
       "source": [
-        "version = \"0.8.0\" # x-release-please-version\n",
+        "version = \"0.9.0\" # x-release-please-version\n",
         "! curl -O https://storage.googleapis.com/genai-toolbox/v{version}/linux/amd64/toolbox\n",
         "\n",
         "# Make the binary executable\n",

docs/en/samples/bigquery/local_quickstart.md

@@ -179,7 +179,7 @@ to use BigQuery, and then run the Toolbox server.
     <!-- {x-release-please-start-version} -->
     ```bash
     export OS="linux/amd64" # one of linux/amd64, darwin/arm64, darwin/amd64, or windows/amd64
-    curl -O https://storage.googleapis.com/genai-toolbox/v0.8.0/$OS/toolbox
+    curl -O https://storage.googleapis.com/genai-toolbox/v0.9.0/$OS/toolbox
     ```
     <!-- {x-release-please-end} -->
 
@@ -292,6 +292,9 @@ to use BigQuery, and then run the Toolbox server.
     ```bash
     ./toolbox --tools-file "tools.yaml"
     ```
+    {{< notice note >}}
+    Toolbox enables dynamic reloading by default. To disable, use the `--disable-reload` flag.
+    {{< /notice >}}
 
 ## Step 3: Connect your agent to Toolbox
 

docs/en/samples/bigquery/mcp_quickstart/_index.md

@@ -98,7 +98,7 @@ In this section, we will download Toolbox, configure our tools in a
     <!-- {x-release-please-start-version} -->
     ```bash
     export OS="linux/amd64" # one of linux/amd64, darwin/arm64, darwin/amd64, or windows/amd64
-    curl -O https://storage.googleapis.com/genai-toolbox/v0.8.0/$OS/toolbox
+    curl -O https://storage.googleapis.com/genai-toolbox/v0.9.0/$OS/toolbox
     ```
     <!-- {x-release-please-end} -->
 
@@ -208,17 +208,25 @@ In this section, we will download Toolbox, configure our tools in a
 
 1. Type `y` when it asks to install the inspector package.
 
-1. It should show the following when the MCP Inspector is up and running:
+1. It should show the following when the MCP Inspector is up and running (please take note of `<YOUR_SESSION_TOKEN>`):
 
     ```bash
-    🔍 MCP Inspector is up and running at http://127.0.0.1:5173 🚀
+    Starting MCP inspector...
+    ⚙️ Proxy server listening on localhost:6277
+    🔑 Session token: <YOUR_SESSION_TOKEN>
+       Use this token to authenticate requests or set DANGEROUSLY_OMIT_AUTH=true to disable auth
+
+    🚀 MCP Inspector is up and running at:
+       http://localhost:6274/?MCP_PROXY_AUTH_TOKEN=<YOUR_SESSION_TOKEN>
     ```
 
 1. Open the above link in your browser.
 
-1. For `Transport Type`, select `SSE`.
+1. For `Transport Type`, select `Streamable HTTP`.
 
-1. For `URL`, type in `http://127.0.0.1:5000/mcp/sse`.
+1. For `URL`, type in `http://127.0.0.1:5000/mcp`.
+
+1. For `Configuration` -> `Proxy Session Token`, make sure `<YOUR_SESSION_TOKEN>` is present.
 
 1. Click Connect.
 
@@ -228,4 +236,4 @@ In this section, we will download Toolbox, configure our tools in a
 
     ![inspector_tools](./inspector_tools.png)
 
-1. Test out your tools here!
+1. Test out your tools here!

docs/en/sdks/_index.md

@@ -0,0 +1,7 @@
+---
+title: "SDKs"
+type: docs
+weight: 6
+description: >
+  Client SDKs to connect to the MCP Toolbox server.
+---

docs/en/sdks/go-sdk.md

@@ -0,0 +1,15 @@
+---
+title: "Go SDK"
+weight: 2
+description: Go lang client SDK
+icon: fa-brands fa-golang
+manualLink: "https://github.com/googleapis/mcp-toolbox-sdk-go"
+manualLinkTarget: _blank
+---
+
+<html>
+  <head>
+    <link rel="canonical" href="https://github.com/googleapis/mcp-toolbox-sdk-go"/>
+    <meta http-equiv="refresh" content="0;url=https://github.com/googleapis/mcp-toolbox-sdk-go"/>
+  </head>
+</html>

docs/en/sdks/js-sdk.md

@@ -0,0 +1,15 @@
+---
+title: "JS SDK"
+weight: 2
+description: Javascript client SDK
+icon: fa-brands fa-node-js
+manualLink: "https://github.com/googleapis/mcp-toolbox-sdk-js"
+manualLinkTarget: _blank
+---
+
+<html>
+  <head>
+    <link rel="canonical" href="https://github.com/googleapis/mcp-toolbox-sdk-js"/>
+    <meta http-equiv="refresh" content="0;url=https://github.com/googleapis/mcp-toolbox-sdk-js"/>
+  </head>
+</html>

docs/en/sdks/python-sdk.md

@@ -0,0 +1,15 @@
+---
+title: "Python SDK"
+weight: 2
+description: Python client SDK
+icon: fa-brands fa-python
+manualLink: "https://github.com/googleapis/mcp-toolbox-sdk-python"
+manualLinkTarget: _blank
+---
+
+<html>
+  <head>
+    <link rel="canonical" href="https://github.com/googleapis/mcp-toolbox-sdk-python"/>
+    <meta http-equiv="refresh" content="0;url=hhttps://github.com/googleapis/mcp-toolbox-sdk-python"/>
+  </head>
+</html>

go.mod

@@ -2,18 +2,19 @@ module github.com/googleapis/genai-toolbox
 
 go 1.23.8
 
-toolchain go1.24.4
+toolchain go1.24.5
 
 require (
-	cloud.google.com/go/alloydbconn v1.15.3
+	cloud.google.com/go/alloydbconn v1.15.4
 	cloud.google.com/go/bigquery v1.69.0
 	cloud.google.com/go/bigtable v1.38.0
-	cloud.google.com/go/cloudsqlconn v1.17.2
+	cloud.google.com/go/cloudsqlconn v1.17.3
 	cloud.google.com/go/spanner v1.83.0
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.53.0
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/trace v1.29.0
 	github.com/couchbase/gocb/v2 v2.10.0
 	github.com/couchbase/tools-common/http v1.0.9
+	github.com/fsnotify/fsnotify v1.9.0
 	github.com/go-chi/chi/v5 v5.2.2
 	github.com/go-chi/httplog/v2 v2.1.1
 	github.com/go-chi/render v1.0.3
@@ -28,17 +29,17 @@ require (
 	github.com/neo4j/neo4j-go-driver/v5 v5.28.1
 	github.com/redis/go-redis/v9 v9.11.0
 	github.com/spf13/cobra v1.9.1
-	github.com/valkey-io/valkey-go v1.0.62
-	go.opentelemetry.io/contrib/propagators/autoprop v0.61.0
-	go.opentelemetry.io/otel v1.36.0
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.36.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.36.0
-	go.opentelemetry.io/otel/metric v1.36.0
-	go.opentelemetry.io/otel/sdk v1.36.0
-	go.opentelemetry.io/otel/sdk/metric v1.36.0
-	go.opentelemetry.io/otel/trace v1.36.0
+	github.com/valkey-io/valkey-go v1.0.63
+	go.opentelemetry.io/contrib/propagators/autoprop v0.62.0
+	go.opentelemetry.io/otel v1.37.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.37.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.37.0
+	go.opentelemetry.io/otel/metric v1.37.0
+	go.opentelemetry.io/otel/sdk v1.37.0
+	go.opentelemetry.io/otel/sdk/metric v1.37.0
+	go.opentelemetry.io/otel/trace v1.37.0
 	golang.org/x/oauth2 v0.30.0
-	google.golang.org/api v0.239.0
+	google.golang.org/api v0.242.0
 	modernc.org/sqlite v1.38.0
 )
 
@@ -47,7 +48,7 @@ require golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 // indirect
 require (
 	cel.dev/expr v0.23.0 // indirect
 	cloud.google.com/go v0.121.2 // indirect
-	cloud.google.com/go/alloydb v1.16.1 // indirect
+	cloud.google.com/go/alloydb v1.18.0 // indirect
 	cloud.google.com/go/auth v0.16.2 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
 	cloud.google.com/go/compute/metadata v0.7.0 // indirect
@@ -91,7 +92,7 @@ require (
 	github.com/googleapis/gax-go/v2 v2.14.2 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
@@ -116,26 +117,26 @@ require (
 	go.opentelemetry.io/contrib/detectors/gcp v1.36.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.61.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.61.0 // indirect
-	go.opentelemetry.io/contrib/propagators/aws v1.36.0 // indirect
-	go.opentelemetry.io/contrib/propagators/b3 v1.36.0 // indirect
-	go.opentelemetry.io/contrib/propagators/jaeger v1.36.0 // indirect
-	go.opentelemetry.io/contrib/propagators/ot v1.36.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.36.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.6.0 // indirect
+	go.opentelemetry.io/contrib/propagators/aws v1.37.0 // indirect
+	go.opentelemetry.io/contrib/propagators/b3 v1.37.0 // indirect
+	go.opentelemetry.io/contrib/propagators/jaeger v1.37.0 // indirect
+	go.opentelemetry.io/contrib/propagators/ot v1.37.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.37.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.7.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
-	golang.org/x/crypto v0.39.0 // indirect
+	golang.org/x/crypto v0.40.0 // indirect
 	golang.org/x/mod v0.25.0 // indirect
-	golang.org/x/net v0.41.0 // indirect
-	golang.org/x/sync v0.15.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
-	golang.org/x/text v0.26.0 // indirect
+	golang.org/x/net v0.42.0 // indirect
+	golang.org/x/sync v0.16.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/text v0.27.0 // indirect
 	golang.org/x/time v0.12.0 // indirect
-	golang.org/x/tools v0.33.0 // indirect
+	golang.org/x/tools v0.34.0 // indirect
 	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
 	google.golang.org/genproto v0.0.0-20250505200425-f936aa4a68b2 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20250603155806-513f23925822 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7 // indirect
 	google.golang.org/grpc v1.73.0 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
 	modernc.org/libc v1.65.10 // indirect

go.sum

@@ -53,10 +53,10 @@ cloud.google.com/go/aiplatform v1.27.0/go.mod h1:Bvxqtl40l0WImSb04d0hXFU7gDOiq9j
 cloud.google.com/go/aiplatform v1.35.0/go.mod h1:7MFT/vCaOyZT/4IIFfxH4ErVg/4ku6lKv3w0+tFTgXQ=
 cloud.google.com/go/aiplatform v1.36.1/go.mod h1:WTm12vJRPARNvJ+v6P52RDHCNe4AhvjcIZ/9/RRHy/k=
 cloud.google.com/go/aiplatform v1.37.0/go.mod h1:IU2Cv29Lv9oCn/9LkFiiuKfwrRTq+QQMbW+hPCxJGZw=
-cloud.google.com/go/alloydb v1.16.1 h1:pW4D0O2jAfAjoOEI1bgChPwMHWE8X8BjwSO0tfWkWvk=
-cloud.google.com/go/alloydb v1.16.1/go.mod h1:zeZuGJ5mEaQE70FMXEvZIp5hQLR9yrGnHo1YUOncWRY=
-cloud.google.com/go/alloydbconn v1.15.3 h1:j0Y0+LpVjdyUguX0uwsaeTtq4tQUZiFvsO52AH+yusY=
-cloud.google.com/go/alloydbconn v1.15.3/go.mod h1:9yrNzUeMr3wR/D4gTJrh5ph2VDW/19tAMV7TlNuyRfM=
+cloud.google.com/go/alloydb v1.18.0 h1:P+s1oek+sF3MlcumZuOj2ueUlusVwr3IT0R0vUbMA88=
+cloud.google.com/go/alloydb v1.18.0/go.mod h1:iB/PmQYLHwDXCGCc0weeL5ORP6GadFjXJlRZ9pE0vSY=
+cloud.google.com/go/alloydbconn v1.15.4 h1:RvtwKVq0YxYQFTKaW5jQWGPAVSvxO3ebqKj2oyl009A=
+cloud.google.com/go/alloydbconn v1.15.4/go.mod h1:m5Db60PJv75Hz9uIaIIJR7ZPQazVC4VGxlhxNqYCBjk=
 cloud.google.com/go/analytics v0.11.0/go.mod h1:DjEWCu41bVbYcKyvlws9Er60YE4a//bK6mnhWvQeFNI=
 cloud.google.com/go/analytics v0.12.0/go.mod h1:gkfj9h6XRf9+TS4bmuhPEShsh3hH8PAZzm/41OOhQd4=
 cloud.google.com/go/analytics v0.17.0/go.mod h1:WXFa3WSym4IZ+JiKmavYdJwGG/CvpqiqczmL59bTD9M=
@@ -167,8 +167,8 @@ cloud.google.com/go/cloudbuild v1.9.0/go.mod h1:qK1d7s4QlO0VwfYn5YuClDGg2hfmLZEb
 cloud.google.com/go/clouddms v1.3.0/go.mod h1:oK6XsCDdW4Ib3jCCBugx+gVjevp2TMXFtgxvPSee3OM=
 cloud.google.com/go/clouddms v1.4.0/go.mod h1:Eh7sUGCC+aKry14O1NRljhjyrr0NFC0G2cjwX0cByRk=
 cloud.google.com/go/clouddms v1.5.0/go.mod h1:QSxQnhikCLUw13iAbffF2CZxAER3xDGNHjsTAkQJcQA=
-cloud.google.com/go/cloudsqlconn v1.17.2 h1:SxSt6ujMxK1KyxKAI2Z5raT2n3geN7ipu6bA8f7iR7E=
-cloud.google.com/go/cloudsqlconn v1.17.2/go.mod h1:l7NymuoD+hycOo+92SJEyETPtE05oRG4oXjcH3swftw=
+cloud.google.com/go/cloudsqlconn v1.17.3 h1:dAEgQmhj9NHVRqven4elTBCbOWOtFPSNjAqBoznJSpc=
+cloud.google.com/go/cloudsqlconn v1.17.3/go.mod h1:5AHAXT4hbs2+EbzNDBxPu9QU+tJwRZyWNPwwiE8MzRs=
 cloud.google.com/go/cloudtasks v1.5.0/go.mod h1:fD92REy1x5woxkKEkLdvavGnPJGEn8Uic9nWuLzqCpY=
 cloud.google.com/go/cloudtasks v1.6.0/go.mod h1:C6Io+sxuke9/KNRkbQpihnW93SWDU3uXt92nu85HkYI=
 cloud.google.com/go/cloudtasks v1.7.0/go.mod h1:ImsfdYWwlWNJbdgPIIGJWC+gemEGTBK/SunNQQNCAb4=
@@ -765,6 +765,8 @@ github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
+github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
+github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/gabriel-vasile/mimetype v1.4.8 h1:FfZ3gj38NjllZIeJAmMhr+qKL8Wu+nOoI3GqacKw1NM=
 github.com/gabriel-vasile/mimetype v1.4.8/go.mod h1:ByKUIKGjh1ODkGM1asKUbQZOLGrPjydw3hYPU2YU9t8=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
@@ -947,8 +949,8 @@ github.com/grpc-ecosystem/go-grpc-middleware v1.4.0/go.mod h1:g5qyo/la0ALbONm6Vb
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0/go.mod h1:hgWBS7lorOAVIJEQMi4ZsPv9hVvWI6+ch50m39Pf2Ks=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.11.3/go.mod h1:o//XUCC/F+yRGJoPO/VU0GSB0f8Nhgmxx0VIRUvaC0w=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 h1:5ZPtiqj0JL5oKWmcsq4VMaAW5ukBEgSGXEN89zeH1Jo=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1 h1:X5VWvz21y3gzm9Nw/kaUeku/1+uBhcekkmy4IkffJww=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1/go.mod h1:Zanoh4+gvIgluNqcfMVTJueD4wSS5hT7zTt4Mrutd90=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/iancoleman/strcase v0.2.0/go.mod h1:iwCmte+B7n89clKwxIoIXy/HfoL7AsD47ZCWhYzw7ho=
@@ -1092,8 +1094,8 @@ github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o
 github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/valkey-io/valkey-go v1.0.62 h1:oQdPlQGRyxcQWL8fnu6J3SCaQwayc/hRZifjJIaJqu0=
-github.com/valkey-io/valkey-go v1.0.62/go.mod h1:bHmwjIEOrGq/ubOJfh5uMRs7Xj6mV3mQ/ZXUbmqpjqY=
+github.com/valkey-io/valkey-go v1.0.63 h1:LNlDTcUxy9jxrmGHSvd0s/NsgEmQbvREYvvBAHCIir0=
+github.com/valkey-io/valkey-go v1.0.63/go.mod h1:bHmwjIEOrGq/ubOJfh5uMRs7Xj6mV3mQ/ZXUbmqpjqY=
 github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 h1:ilQV1hzziu+LLM3zUTJ0trRztfwgjqKnBWNtSRkbmwM=
 github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfSfmXjznFBSZNN13rSJjlIOI1fUNAtF7rmI=
 github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
@@ -1126,37 +1128,37 @@ go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.6
 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.61.0/go.mod h1:snMWehoOh2wsEwnvvwtDyFCxVeDAODenXHtn5vzrKjo=
 go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.61.0 h1:F7Jx+6hwnZ41NSFTO5q4LYDtJRXBf2PD0rNBkeB/lus=
 go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.61.0/go.mod h1:UHB22Z8QsdRDrnAtX4PntOl36ajSxcdUMt1sF7Y6E7Q=
-go.opentelemetry.io/contrib/propagators/autoprop v0.61.0 h1:cxOVDJ30qfzV27G5p9WMtJUB/3cXC0iL+u9EV1fSOws=
-go.opentelemetry.io/contrib/propagators/autoprop v0.61.0/go.mod h1:Y+xiUbWetg65vAroDZcIzJ5wyPNWRH32EoIV9rIaa0g=
-go.opentelemetry.io/contrib/propagators/aws v1.36.0 h1:Txhy/1LZIbbnutftc5pdU8Y9vOQuAkuIOFXuLsdDejs=
-go.opentelemetry.io/contrib/propagators/aws v1.36.0/go.mod h1:M3A0491jGFPNHU8b3zEW7r/gtsMpGOsFUO3WL+SZ1xw=
-go.opentelemetry.io/contrib/propagators/b3 v1.36.0 h1:xrAb/G80z/l5JL6XlmUMSD1i6W8vXkWrLfmkD3w/zZo=
-go.opentelemetry.io/contrib/propagators/b3 v1.36.0/go.mod h1:UREJtqioFu5awNaCR8aEx7MfJROFlAWb6lPaJFbHaG0=
-go.opentelemetry.io/contrib/propagators/jaeger v1.36.0 h1:SoCgXYF4ISDtNyfLUzsGDaaudZVTx2yJhOyBO0+/GYk=
-go.opentelemetry.io/contrib/propagators/jaeger v1.36.0/go.mod h1:VHu48l0YTRKSObdPQ+Sb8xMZvdnJlN7yhHuHoPgNqHM=
-go.opentelemetry.io/contrib/propagators/ot v1.36.0 h1:UBoZjbx483GslNKYK2YpfvePTJV4BHGeFd8+b7dexiM=
-go.opentelemetry.io/contrib/propagators/ot v1.36.0/go.mod h1:adDDRry19/n9WoA7mSCMjoVJcmzK/bZYzX9SR+g2+W4=
-go.opentelemetry.io/otel v1.36.0 h1:UumtzIklRBY6cI/lllNZlALOF5nNIzJVb16APdvgTXg=
-go.opentelemetry.io/otel v1.36.0/go.mod h1:/TcFMXYjyRNh8khOAO9ybYkqaDBb/70aVwkNML4pP8E=
-go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.36.0 h1:gAU726w9J8fwr4qRDqu1GYMNNs4gXrU+Pv20/N1UpB4=
-go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.36.0/go.mod h1:RboSDkp7N292rgu+T0MgVt2qgFGu6qa1RpZDOtpL76w=
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-go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.36.0/go.mod h1:90PoxvaEB5n6AOdZvi+yWJQoE95U8Dhhw2bSyRqnTD0=
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 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.opentelemetry.io/proto/otlp v1.6.0 h1:jQjP+AQyTf+Fe7OKj/MfkDrmK4MNVtw2NpXsf9fefDI=
-go.opentelemetry.io/proto/otlp v1.6.0/go.mod h1:cicgGehlFuNdgZkcALOCh3VE6K/u2tAjzlRhDwmVpZc=
+go.opentelemetry.io/proto/otlp v1.7.0 h1:jX1VolD6nHuFzOYso2E73H85i92Mv8JQYk0K9vz09os=
+go.opentelemetry.io/proto/otlp v1.7.0/go.mod h1:fSKjH6YJ7HDlwzltzyMj036AJ3ejJLCgCSHGj4efDDo=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
@@ -1176,8 +1178,8 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.39.0 h1:SHs+kF4LP+f+p14esP5jAoDpHU8Gu/v9lFRK6IT5imM=
-golang.org/x/crypto v0.39.0/go.mod h1:L+Xg3Wf6HoL4Bn4238Z6ft6KfEpN0tJGo53AAPC632U=
+golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
+golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -1296,8 +1298,8 @@ golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
 golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
-golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
-golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
+golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
+golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -1345,8 +1347,8 @@ golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20220819030929-7fc1605a5dde/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220929204114-8fcdb60fdcc0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.15.0 h1:KWH3jNZsfyT6xfAfKiz6MRNmd46ByHDYaZ7KSkCtdW8=
-golang.org/x/sync v0.15.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
+golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1426,8 +1428,8 @@ golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
-golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
@@ -1452,8 +1454,8 @@ golang.org/x/text v0.6.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
-golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
+golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
+golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -1526,8 +1528,8 @@ golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc
 golang.org/x/tools v0.3.0/go.mod h1:/rWhSS2+zyEVwoJf8YAX6L2f0ntZ7Kn/mGgAWcipA5k=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s=
-golang.org/x/tools v0.33.0 h1:4qz2S3zmRxbGIhDIAgjxvFutSvH5EfnsYrRBj0UI0bc=
-golang.org/x/tools v0.33.0/go.mod h1:CIJMaWEY88juyUfo7UbgPqbC8rU2OqfAV1h2Qp0oMYI=
+golang.org/x/tools v0.34.0 h1:qIpSLOxeCYGg9TrcJokLBG4KFA6d795g0xkBkiESGlo=
+golang.org/x/tools v0.34.0/go.mod h1:pAP9OwEaY1CAW3HOmg3hLZC5Z0CCmzjAF2UQMSqNARg=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1605,8 +1607,8 @@ google.golang.org/api v0.108.0/go.mod h1:2Ts0XTHNVWxypznxWOYUeI4g3WdP9Pk2Qk58+a/
 google.golang.org/api v0.110.0/go.mod h1:7FC4Vvx1Mooxh8C5HWjzZHcavuS2f6pmJpZx60ca7iI=
 google.golang.org/api v0.111.0/go.mod h1:qtFHvU9mhgTJegR31csQ+rwxyUTHOKFqCKWp1J0fdw0=
 google.golang.org/api v0.114.0/go.mod h1:ifYI2ZsFK6/uGddGfAD5BMxlnkBqCmqHSDUVi45N5Yg=
-google.golang.org/api v0.239.0 h1:2hZKUnFZEy81eugPs4e2XzIJ5SOwQg0G82bpXD65Puo=
-google.golang.org/api v0.239.0/go.mod h1:cOVEm2TpdAGHL2z+UwyS+kmlGr3bVWQQ6sYEqkKje50=
+google.golang.org/api v0.242.0 h1:7Lnb1nfnpvbkCiZek6IXKdJ0MFuAZNAJKQfA1ws62xg=
+google.golang.org/api v0.242.0/go.mod h1:cOVEm2TpdAGHL2z+UwyS+kmlGr3bVWQQ6sYEqkKje50=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -1751,8 +1753,8 @@ google.golang.org/genproto v0.0.0-20250505200425-f936aa4a68b2 h1:1tXaIXCracvtsRx
 google.golang.org/genproto v0.0.0-20250505200425-f936aa4a68b2/go.mod h1:49MsLSx0oWMOZqcpB3uL8ZOkAh1+TndpJ8ONoCBWiZk=
 google.golang.org/genproto/googleapis/api v0.0.0-20250603155806-513f23925822 h1:oWVWY3NzT7KJppx2UKhKmzPq4SRe0LdCijVRwvGeikY=
 google.golang.org/genproto/googleapis/api v0.0.0-20250603155806-513f23925822/go.mod h1:h3c4v36UTKzUiuaOKQ6gr3S+0hovBtUrXzTG/i3+XEc=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822 h1:fc6jSaCT0vBduLYZHYrBBNY4dsWuvgyff9noRNDdBeE=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7 h1:pFyd6EwwL2TqFf8emdthzeX+gZE1ElRq3iM8pui4KBY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=

internal/server/api.go

@@ -75,7 +75,7 @@ func toolsetHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 		)
 	}()
 
-	toolset, ok := s.toolsets[toolsetName]
+	toolset, ok := s.ResourceMgr.GetToolset(toolsetName)
 	if !ok {
 		err = fmt.Errorf("toolset %q does not exist", toolsetName)
 		s.logger.DebugContext(ctx, err.Error())
@@ -111,7 +111,7 @@ func toolGetHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 			metric.WithAttributes(attribute.String("toolbox.operation.status", status)),
 		)
 	}()
-	tool, ok := s.tools[toolName]
+	tool, ok := s.ResourceMgr.GetTool(toolName)
 	if !ok {
 		err = fmt.Errorf("invalid tool name: tool with name %q does not exist", toolName)
 		s.logger.DebugContext(ctx, err.Error())
@@ -133,6 +133,7 @@ func toolGetHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 func toolInvokeHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 	ctx, span := s.instrumentation.Tracer.Start(r.Context(), "toolbox/server/tool/invoke")
 	r = r.WithContext(ctx)
+	ctx = util.WithLogger(r.Context(), s.logger)
 
 	toolName := chi.URLParam(r, "toolName")
 	s.logger.DebugContext(ctx, fmt.Sprintf("tool name: %s", toolName))
@@ -156,7 +157,7 @@ func toolInvokeHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 		)
 	}()
 
-	tool, ok := s.tools[toolName]
+	tool, ok := s.ResourceMgr.GetTool(toolName)
 	if !ok {
 		err = fmt.Errorf("invalid tool name: tool with name %q does not exist", toolName)
 		s.logger.DebugContext(ctx, err.Error())
@@ -167,7 +168,7 @@ func toolInvokeHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 	// Tool authentication
 	// claimsFromAuth maps the name of the authservice to the claims retrieved from it.
 	claimsFromAuth := make(map[string]map[string]any)
-	for _, aS := range s.authServices {
+	for _, aS := range s.ResourceMgr.GetAuthServiceMap() {
 		claims, err := aS.GetClaimsFromHeader(ctx, r.Header)
 		if err != nil {
 			s.logger.DebugContext(ctx, err.Error())

internal/server/common_test.go

@@ -147,14 +147,23 @@ func setUpServer(t *testing.T, router string, tools map[string]tools.Tool, tools
 		t.Fatalf("unable to setup otel: %s", err)
 	}
 
-	instrumentation, err := CreateTelemetryInstrumentation(fakeVersionString)
+	instrumentation, err := telemetry.CreateTelemetryInstrumentation(fakeVersionString)
 	if err != nil {
 		t.Fatalf("unable to create custom metrics: %s", err)
 	}
 
 	sseManager := newSseManager(ctx)
 
-	server := Server{version: fakeVersionString, logger: testLogger, instrumentation: instrumentation, sseManager: sseManager, tools: tools, toolsets: toolsets}
+	resourceManager := NewResourceManager(nil, nil, tools, toolsets)
+
+	server := Server{
+		version:         fakeVersionString,
+		logger:          testLogger,
+		instrumentation: instrumentation,
+		sseManager:      sseManager,
+		ResourceMgr:     resourceManager,
+	}
+
 	var r chi.Router
 	switch router {
 	case "api":

internal/server/config.go

@@ -53,6 +53,8 @@ type ServerConfig struct {
 	TelemetryServiceName string
 	// Stdio indicates if Toolbox is listening via MCP stdio.
 	Stdio bool
+	// DisableReload indicates if the user has disabled dynamic reloading for Toolbox.
+	DisableReload bool
 }
 
 type logFormat string

internal/server/mcp.go

@@ -357,6 +357,17 @@ func httpHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 		protocolVersion = v20250326.PROTOCOL_VERSION
 	}
 
+	// check if client have `MCP-Protocol-Version` header
+	headerProtocolVersion := r.Header.Get("MCP-Protocol-Version")
+	if headerProtocolVersion != "" {
+		if !mcp.VerifyProtocolVersion(headerProtocolVersion) {
+			err := fmt.Errorf("invalid protocol version: %s", headerProtocolVersion)
+			_ = render.Render(w, r, newErrResponse(err, http.StatusBadRequest))
+			return
+		}
+		protocolVersion = headerProtocolVersion
+	}
+
 	toolsetName := chi.URLParam(r, "toolsetName")
 	s.logger.DebugContext(ctx, fmt.Sprintf("toolset name: %s", toolsetName))
 	span.SetAttributes(attribute.String("toolset_name", toolsetName))
@@ -387,6 +398,7 @@ func httpHandler(s *Server, w http.ResponseWriter, r *http.Request) {
 		id := uuid.New().String()
 		s.logger.DebugContext(ctx, err.Error())
 		render.JSON(w, r, jsonrpc.NewError(id, jsonrpc.PARSE_ERROR, err.Error(), nil))
+		return
 	}
 
 	v, res, err := processMcpMessage(ctx, body, s, protocolVersion, toolsetName)
@@ -431,10 +443,6 @@ func processMcpMessage(ctx context.Context, body []byte, s *Server, protocolVers
 		return "", jsonrpc.NewError("", jsonrpc.INTERNAL_ERROR, err.Error(), nil), err
 	}
 
-	if protocolVersion == "" {
-		protocolVersion = v20241105.PROTOCOL_VERSION
-	}
-
 	// Generic baseMessage could either be a JSONRPCNotification or JSONRPCRequest
 	var baseMessage jsonrpc.BaseMessage
 	if err = util.DecodeJSON(bytes.NewBuffer(body), &baseMessage); err != nil {
@@ -479,12 +487,12 @@ func processMcpMessage(ctx context.Context, body []byte, s *Server, protocolVers
 		}
 		return v, res, err
 	default:
-		toolset, ok := s.toolsets[toolsetName]
+		toolset, ok := s.ResourceMgr.GetToolset(toolsetName)
 		if !ok {
 			err = fmt.Errorf("toolset does not exist")
 			return "", jsonrpc.NewError(baseMessage.Id, jsonrpc.INVALID_REQUEST, err.Error(), nil), err
 		}
-		res, err := mcp.ProcessMethod(ctx, protocolVersion, baseMessage.Id, baseMessage.Method, toolset, s.tools, body)
+		res, err := mcp.ProcessMethod(ctx, protocolVersion, baseMessage.Id, baseMessage.Method, toolset, s.ResourceMgr.GetToolsMap(), body)
 		return "", res, err
 	}
 }

internal/server/mcp/mcp.go

@@ -24,15 +24,20 @@ import (
 	mcputil "github.com/googleapis/genai-toolbox/internal/server/mcp/util"
 	v20241105 "github.com/googleapis/genai-toolbox/internal/server/mcp/v20241105"
 	v20250326 "github.com/googleapis/genai-toolbox/internal/server/mcp/v20250326"
+	v20250618 "github.com/googleapis/genai-toolbox/internal/server/mcp/v20250618"
 	"github.com/googleapis/genai-toolbox/internal/tools"
 )
 
 // LATEST_PROTOCOL_VERSION is the latest version of the MCP protocol supported.
 // Update the version used in InitializeResponse when this value is updated.
-const LATEST_PROTOCOL_VERSION = v20250326.PROTOCOL_VERSION
+const LATEST_PROTOCOL_VERSION = v20250618.PROTOCOL_VERSION
 
 // SUPPORTED_PROTOCOL_VERSIONS is the MCP protocol versions that are supported.
-var SUPPORTED_PROTOCOL_VERSIONS = []string{v20241105.PROTOCOL_VERSION, v20250326.PROTOCOL_VERSION}
+var SUPPORTED_PROTOCOL_VERSIONS = []string{
+	v20241105.PROTOCOL_VERSION,
+	v20250326.PROTOCOL_VERSION,
+	v20250618.PROTOCOL_VERSION,
+}
 
 // InitializeResponse runs capability negotiation and protocol version agreement.
 // This is the Initialization phase of the lifecycle for MCP client-server connections.
@@ -61,7 +66,9 @@ func InitializeResponse(ctx context.Context, id jsonrpc.RequestId, body []byte,
 			},
 		},
 		ServerInfo: mcputil.Implementation{
-			Name:    mcputil.SERVER_NAME,
+			BaseMetadata: mcputil.BaseMetadata{
+				Name: mcputil.SERVER_NAME,
+			},
 			Version: toolboxVersion,
 		},
 	}
@@ -88,12 +95,16 @@ func NotificationHandler(ctx context.Context, body []byte) error {
 // This is the Operation phase of the lifecycle for MCP client-server connections.
 func ProcessMethod(ctx context.Context, mcpVersion string, id jsonrpc.RequestId, method string, toolset tools.Toolset, tools map[string]tools.Tool, body []byte) (any, error) {
 	switch mcpVersion {
+	case v20250618.PROTOCOL_VERSION:
+		return v20250618.ProcessMethod(ctx, id, method, toolset, tools, body)
 	case v20250326.PROTOCOL_VERSION:
 		return v20250326.ProcessMethod(ctx, id, method, toolset, tools, body)
-	case v20241105.PROTOCOL_VERSION:
-		return v20241105.ProcessMethod(ctx, id, method, toolset, tools, body)
 	default:
-		err := fmt.Errorf("invalid protocol version: %s", mcpVersion)
-		return jsonrpc.NewError(id, jsonrpc.INVALID_REQUEST, err.Error(), nil), err
+		return v20241105.ProcessMethod(ctx, id, method, toolset, tools, body)
 	}
 }
+
+// VerifyProtocolVersion verifies if the version string is valid.
+func VerifyProtocolVersion(version string) bool {
+	return slices.Contains(SUPPORTED_PROTOCOL_VERSIONS, version)
+}

internal/server/mcp/util/lifecycle.go

@@ -89,8 +89,22 @@ type ServerCapabilities struct {
 	Tools *ListChanged `json:"tools,omitempty"`
 }
 
+// Base interface for metadata with name (identifier) and title (display name) properties.
+type BaseMetadata struct {
+	// Intended for programmatic or logical use, but used as a display name in past specs
+	// or fallback (if title isn't present).
+	Name string `json:"name"`
+	// Intended for UI and end-user contexts — optimized to be human-readable and easily understood,
+	//even by those unfamiliar with domain-specific terminology.
+	//
+	// If not provided, the name should be used for display (except for Tool,
+	// where `annotations.title` should be given precedence over using `name`,
+	// if present).
+	Title string `json:"title,omitempty"`
+}
+
 // Implementation describes the name and version of an MCP implementation.
 type Implementation struct {
-	Name    string `json:"name"`
+	BaseMetadata
 	Version string `json:"version"`
 }

internal/server/mcp/v20250618/method.go

@@ -0,0 +1,141 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package v20250618
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"github.com/googleapis/genai-toolbox/internal/server/mcp/jsonrpc"
+	"github.com/googleapis/genai-toolbox/internal/tools"
+	"github.com/googleapis/genai-toolbox/internal/util"
+)
+
+// ProcessMethod returns a response for the request.
+func ProcessMethod(ctx context.Context, id jsonrpc.RequestId, method string, toolset tools.Toolset, tools map[string]tools.Tool, body []byte) (any, error) {
+	switch method {
+	case TOOLS_LIST:
+		return toolsListHandler(id, toolset, body)
+	case TOOLS_CALL:
+		return toolsCallHandler(ctx, id, tools, body)
+	default:
+		err := fmt.Errorf("invalid method %s", method)
+		return jsonrpc.NewError(id, jsonrpc.METHOD_NOT_FOUND, err.Error(), nil), err
+	}
+}
+
+func toolsListHandler(id jsonrpc.RequestId, toolset tools.Toolset, body []byte) (any, error) {
+	var req ListToolsRequest
+	if err := json.Unmarshal(body, &req); err != nil {
+		err = fmt.Errorf("invalid mcp tools list request: %w", err)
+		return jsonrpc.NewError(id, jsonrpc.INVALID_REQUEST, err.Error(), nil), err
+	}
+
+	result := ListToolsResult{
+		Tools: toolset.McpManifest,
+	}
+	return jsonrpc.JSONRPCResponse{
+		Jsonrpc: jsonrpc.JSONRPC_VERSION,
+		Id:      id,
+		Result:  result,
+	}, nil
+}
+
+// toolsCallHandler generate a response for tools call.
+func toolsCallHandler(ctx context.Context, id jsonrpc.RequestId, tools map[string]tools.Tool, body []byte) (any, error) {
+	// retrieve logger from context
+	logger, err := util.LoggerFromContext(ctx)
+	if err != nil {
+		return jsonrpc.NewError(id, jsonrpc.INTERNAL_ERROR, err.Error(), nil), err
+	}
+
+	var req CallToolRequest
+	if err = json.Unmarshal(body, &req); err != nil {
+		err = fmt.Errorf("invalid mcp tools call request: %w", err)
+		return jsonrpc.NewError(id, jsonrpc.INVALID_REQUEST, err.Error(), nil), err
+	}
+
+	toolName := req.Params.Name
+	toolArgument := req.Params.Arguments
+	logger.DebugContext(ctx, fmt.Sprintf("tool name: %s", toolName))
+	tool, ok := tools[toolName]
+	if !ok {
+		err = fmt.Errorf("invalid tool name: tool with name %q does not exist", toolName)
+		return jsonrpc.NewError(id, jsonrpc.INVALID_PARAMS, err.Error(), nil), err
+	}
+
+	// marshal arguments and decode it using decodeJSON instead to prevent loss between floats/int.
+	aMarshal, err := json.Marshal(toolArgument)
+	if err != nil {
+		err = fmt.Errorf("unable to marshal tools argument: %w", err)
+		return jsonrpc.NewError(id, jsonrpc.INTERNAL_ERROR, err.Error(), nil), err
+	}
+
+	var data map[string]any
+	if err = util.DecodeJSON(bytes.NewBuffer(aMarshal), &data); err != nil {
+		err = fmt.Errorf("unable to decode tools argument: %w", err)
+		return jsonrpc.NewError(id, jsonrpc.INTERNAL_ERROR, err.Error(), nil), err
+	}
+
+	// claimsFromAuth maps the name of the authservice to the claims retrieved from it.
+	// Since MCP doesn't support auth, an empty map will be use every time.
+	claimsFromAuth := make(map[string]map[string]any)
+
+	params, err := tool.ParseParams(data, claimsFromAuth)
+	if err != nil {
+		err = fmt.Errorf("provided parameters were invalid: %w", err)
+		return jsonrpc.NewError(id, jsonrpc.INVALID_PARAMS, err.Error(), nil), err
+	}
+	logger.DebugContext(ctx, fmt.Sprintf("invocation params: %s", params))
+
+	if !tool.Authorized([]string{}) {
+		err = fmt.Errorf("unauthorized Tool call: `authRequired` is set for the target Tool")
+		return jsonrpc.NewError(id, jsonrpc.INVALID_REQUEST, err.Error(), nil), err
+	}
+
+	// run tool invocation and generate response.
+	results, err := tool.Invoke(ctx, params)
+	if err != nil {
+		text := TextContent{
+			Type: "text",
+			Text: err.Error(),
+		}
+		return jsonrpc.JSONRPCResponse{
+			Jsonrpc: jsonrpc.JSONRPC_VERSION,
+			Id:      id,
+			Result:  CallToolResult{Content: []TextContent{text}, IsError: true},
+		}, nil
+	}
+
+	content := make([]TextContent, 0)
+	for _, d := range results {
+		text := TextContent{Type: "text"}
+		dM, err := json.Marshal(d)
+		if err != nil {
+			text.Text = fmt.Sprintf("fail to marshal: %s, result: %s", err, d)
+		} else {
+			text.Text = string(dM)
+		}
+		content = append(content, text)
+	}
+
+	return jsonrpc.JSONRPCResponse{
+		Jsonrpc: jsonrpc.JSONRPC_VERSION,
+		Id:      id,
+		Result:  CallToolResult{Content: content},
+	}, nil
+}

internal/server/mcp/v20250618/types.go

@@ -0,0 +1,180 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package v20250618
+
+import (
+	"github.com/googleapis/genai-toolbox/internal/server/mcp/jsonrpc"
+	"github.com/googleapis/genai-toolbox/internal/tools"
+)
+
+// SERVER_NAME is the server name used in Implementation.
+const SERVER_NAME = "Toolbox"
+
+// PROTOCOL_VERSION is the version of the MCP protocol in this package.
+const PROTOCOL_VERSION = "2025-06-18"
+
+// methods that are supported.
+const (
+	TOOLS_LIST = "tools/list"
+	TOOLS_CALL = "tools/call"
+)
+
+/* Empty result */
+
+// EmptyResult represents a response that indicates success but carries no data.
+type EmptyResult jsonrpc.Result
+
+/* Pagination */
+
+// Cursor is an opaque token used to represent a cursor for pagination.
+type Cursor string
+
+type PaginatedRequest struct {
+	jsonrpc.Request
+	Params struct {
+		// An opaque token representing the current pagination position.
+		// If provided, the server should return results starting after this cursor.
+		Cursor Cursor `json:"cursor,omitempty"`
+	} `json:"params,omitempty"`
+}
+
+type PaginatedResult struct {
+	jsonrpc.Result
+	// An opaque token representing the pagination position after the last returned result.
+	// If present, there may be more results available.
+	NextCursor Cursor `json:"nextCursor,omitempty"`
+}
+
+/* Tools */
+
+// Sent from the client to request a list of tools the server has.
+type ListToolsRequest struct {
+	PaginatedRequest
+}
+
+// The server's response to a tools/list request from the client.
+type ListToolsResult struct {
+	PaginatedResult
+	Tools []tools.McpManifest `json:"tools"`
+}
+
+// Used by the client to invoke a tool provided by the server.
+type CallToolRequest struct {
+	jsonrpc.Request
+	Params struct {
+		Name      string         `json:"name"`
+		Arguments map[string]any `json:"arguments,omitempty"`
+	} `json:"params,omitempty"`
+}
+
+// The sender or recipient of messages and data in a conversation.
+type Role string
+
+const (
+	RoleUser      Role = "user"
+	RoleAssistant Role = "assistant"
+)
+
+// Base for objects that include optional annotations for the client.
+// The client can use annotations to inform how objects are used or displayed
+type Annotated struct {
+	Annotations *struct {
+		// Describes who the intended customer of this object or data is.
+		// It can include multiple entries to indicate content useful for multiple
+		// audiences (e.g., `["user", "assistant"]`).
+		Audience []Role `json:"audience,omitempty"`
+		// Describes how important this data is for operating the server.
+		//
+		// A value of 1 means "most important," and indicates that the data is
+		// effectively required, while 0 means "least important," and indicates that
+		// the data is entirely optional.
+		//
+		// @TJS-type number
+		// @minimum 0
+		// @maximum 1
+		Priority float64 `json:"priority,omitempty"`
+	} `json:"annotations,omitempty"`
+}
+
+// TextContent represents text provided to or from an LLM.
+type TextContent struct {
+	Annotated
+	Type string `json:"type"`
+	// The text content of the message.
+	Text string `json:"text"`
+}
+
+// The server's response to a tool call.
+//
+// Any errors that originate from the tool SHOULD be reported inside the result
+// object, with `isError` set to true, _not_ as an MCP protocol-level error
+// response. Otherwise, the LLM would not be able to see that an error occurred
+// and self-correct.
+//
+// However, any errors in _finding_ the tool, an error indicating that the
+// server does not support tool calls, or any other exceptional conditions,
+// should be reported as an MCP error response.
+type CallToolResult struct {
+	jsonrpc.Result
+	// Could be either a TextContent, ImageContent, or EmbeddedResources
+	// For Toolbox, we will only be sending TextContent
+	Content []TextContent `json:"content"`
+	// Whether the tool call ended in an error.
+	// If not set, this is assumed to be false (the call was successful).
+	//
+	// Any errors that originate from the tool SHOULD be reported inside the result
+	// object, with `isError` set to true, _not_ as an MCP protocol-level error
+	// response. Otherwise, the LLM would not be able to see that an error occurred
+	// and self-correct.
+	//
+	// However, any errors in _finding_ the tool, an error indicating that the
+	// server does not support tool calls, or any other exceptional conditions,
+	// should be reported as an MCP error response.
+	IsError bool `json:"isError,omitempty"`
+	// An optional JSON object that represents the structured result of the tool call.
+	StructuredContent map[string]any `json:"structuredContent,omitempty"`
+}
+
+// Additional properties describing a Tool to clients.
+//
+// NOTE: all properties in ToolAnnotations are **hints**.
+// They are not guaranteed to provide a faithful description of
+// tool behavior (including descriptive properties like `title`).
+//
+// Clients should never make tool use decisions based on ToolAnnotations
+// received from untrusted servers.
+type ToolAnnotations struct {
+	// A human-readable title for the tool.
+	Title string `json:"title,omitempty"`
+	// If true, the tool does not modify its environment.
+	// Default: false
+	ReadOnlyHint bool `json:"readOnlyHint,omitempty"`
+	// If true, the tool may perform destructive updates to its environment.
+	// If false, the tool performs only additive updates.
+	// (This property is meaningful only when `readOnlyHint == false`)
+	// Default: true
+	DestructiveHint bool `json:"destructiveHint,omitempty"`
+	// If true, calling the tool repeatedly with the same arguments
+	// will have no additional effect on the its environment.
+	// (This property is meaningful only when `readOnlyHint == false`)
+	// Default: false
+	IdempotentHint bool `json:"idempotentHint,omitempty"`
+	// If true, this tool may interact with an "open world" of external
+	// entities. If false, the tool's domain of interaction is closed.
+	// For example, the world of a web search tool is open, whereas that
+	// of a memory tool is not.
+	// Default: true
+	OpenWorldHint bool `json:"openWorldHint,omitempty"`
+}

internal/server/mcp_test.go

@@ -36,6 +36,7 @@ import (
 const jsonrpcVersion = "2.0"
 const protocolVersion20241105 = "2024-11-05"
 const protocolVersion20250326 = "2025-03-26"
+const protocolVersion20250618 = "2025-06-18"
 const serverName = "Toolbox"
 
 var tool1InputSchema = map[string]any{
@@ -254,7 +255,7 @@ func TestMcpEndpoint(t *testing.T) {
 		initWant map[string]any
 	}{
 		{
-			name:     "verson 2024-11-05",
+			name:     "version 2024-11-05",
 			protocol: protocolVersion20241105,
 			idHeader: false,
 			initWant: map[string]any{
@@ -270,7 +271,7 @@ func TestMcpEndpoint(t *testing.T) {
 			},
 		},
 		{
-			name:     "verson 2025-03-26",
+			name:     "version 2025-03-26",
 			protocol: protocolVersion20250326,
 			idHeader: true,
 			initWant: map[string]any{
@@ -285,6 +286,22 @@ func TestMcpEndpoint(t *testing.T) {
 				},
 			},
 		},
+		{
+			name:     "version 2025-06-18",
+			protocol: protocolVersion20250618,
+			idHeader: false,
+			initWant: map[string]any{
+				"jsonrpc": "2.0",
+				"id":      "mcp-initialize",
+				"result": map[string]any{
+					"protocolVersion": "2025-06-18",
+					"capabilities": map[string]any{
+						"tools": map[string]any{"listChanged": false},
+					},
+					"serverInfo": map[string]any{"name": serverName, "version": fakeVersionString},
+				},
+			},
+		},
 	}
 	for _, vtc := range versTestCases {
 		t.Run(vtc.name, func(t *testing.T) {
@@ -295,6 +312,10 @@ func TestMcpEndpoint(t *testing.T) {
 				header["Mcp-Session-Id"] = sessionId
 			}
 
+			if vtc.protocol == protocolVersion20250618 {
+				header["MCP-Protocol-Version"] = vtc.protocol
+			}
+
 			testCases := []struct {
 				name  string
 				url   string
@@ -481,7 +502,7 @@ func TestMcpEndpoint(t *testing.T) {
 						t.Fatalf("unexpected error during marshaling of body")
 					}
 
-					if vtc.protocol == protocolVersion20250326 && len(header) == 0 {
+					if vtc.protocol != protocolVersion20241105 && len(header) == 0 {
 						t.Fatalf("header is missing")
 					}
 
@@ -514,6 +535,33 @@ func TestMcpEndpoint(t *testing.T) {
 	}
 }
 
+func TestInvalidProtocolVersionHeader(t *testing.T) {
+	toolsMap, toolsets := map[string]tools.Tool{}, map[string]tools.Toolset{}
+	r, shutdown := setUpServer(t, "mcp", toolsMap, toolsets)
+	defer shutdown()
+	ts := runServer(r, false)
+	defer ts.Close()
+
+	header := map[string]string{}
+	header["MCP-Protocol-Version"] = "foo"
+
+	resp, body, err := runRequest(ts, http.MethodPost, "/", nil, header)
+	if resp.Status != "400 Bad Request" {
+		t.Fatalf("unexpected status: %s", resp.Status)
+	}
+	var got map[string]any
+	if err := json.Unmarshal(body, &got); err != nil {
+		t.Fatalf("unexpected error unmarshalling body: %s", err)
+	}
+	want := "invalid protocol version: foo"
+	if got["error"] != want {
+		t.Fatalf("unexpected error message: got %s, want %s", got["error"], want)
+	}
+	if err != nil {
+		t.Fatalf("unexpected error during request: %s", err)
+	}
+}
+
 func TestDeleteEndpoint(t *testing.T) {
 	toolsMap, toolsets := map[string]tools.Tool{}, map[string]tools.Toolset{}
 	r, shutdown := setUpServer(t, "mcp", toolsMap, toolsets)
@@ -693,14 +741,22 @@ func TestStdioSession(t *testing.T) {
 		}
 	}()
 
-	instrumentation, err := CreateTelemetryInstrumentation(fakeVersionString)
+	instrumentation, err := telemetry.CreateTelemetryInstrumentation(fakeVersionString)
 	if err != nil {
 		t.Fatalf("unable to create custom metrics: %s", err)
 	}
 
 	sseManager := newSseManager(ctx)
 
-	server := &Server{version: fakeVersionString, logger: testLogger, instrumentation: instrumentation, sseManager: sseManager, tools: toolsMap, toolsets: toolsets}
+	resourceManager := NewResourceManager(nil, nil, toolsMap, toolsets)
+
+	server := &Server{
+		version:         fakeVersionString,
+		logger:          testLogger,
+		instrumentation: instrumentation,
+		sseManager:      sseManager,
+		ResourceMgr:     resourceManager,
+	}
 
 	in := bufio.NewReader(pr)
 	stdioSession := NewStdioSession(server, in, pw)

internal/server/server.go

@@ -21,6 +21,7 @@ import (
 	"net"
 	"net/http"
 	"strconv"
+	"sync"
 	"time"
 
 	"github.com/go-chi/chi/v5"
@@ -29,6 +30,7 @@ import (
 	"github.com/googleapis/genai-toolbox/internal/auth"
 	"github.com/googleapis/genai-toolbox/internal/log"
 	"github.com/googleapis/genai-toolbox/internal/sources"
+	"github.com/googleapis/genai-toolbox/internal/telemetry"
 	"github.com/googleapis/genai-toolbox/internal/tools"
 	"github.com/googleapis/genai-toolbox/internal/util"
 	"go.opentelemetry.io/otel/attribute"
@@ -42,26 +44,225 @@ type Server struct {
 	listener        net.Listener
 	root            chi.Router
 	logger          log.Logger
-	instrumentation *Instrumentation
+	instrumentation *telemetry.Instrumentation
 	sseManager      *sseManager
+	ResourceMgr     *ResourceManager
+}
 
+// ResourceManager contains available resources for the server. Should be initialized with NewResourceManager().
+type ResourceManager struct {
+	mu           sync.RWMutex
 	sources      map[string]sources.Source
 	authServices map[string]auth.AuthService
 	tools        map[string]tools.Tool
 	toolsets     map[string]tools.Toolset
 }
 
-// NewServer returns a Server object based on provided Config.
-func NewServer(ctx context.Context, cfg ServerConfig, l log.Logger) (*Server, error) {
-	instrumentation, err := CreateTelemetryInstrumentation(cfg.Version)
+func NewResourceManager(
+	sourcesMap map[string]sources.Source,
+	authServicesMap map[string]auth.AuthService,
+	toolsMap map[string]tools.Tool, toolsetsMap map[string]tools.Toolset,
+) *ResourceManager {
+	resourceMgr := &ResourceManager{
+		mu:           sync.RWMutex{},
+		sources:      sourcesMap,
+		authServices: authServicesMap,
+		tools:        toolsMap,
+		toolsets:     toolsetsMap,
+	}
+
+	return resourceMgr
+}
+
+func (r *ResourceManager) GetSource(sourceName string) (sources.Source, bool) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	source, ok := r.sources[sourceName]
+	return source, ok
+}
+
+func (r *ResourceManager) GetAuthService(authServiceName string) (auth.AuthService, bool) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	authService, ok := r.authServices[authServiceName]
+	return authService, ok
+}
+
+func (r *ResourceManager) GetTool(toolName string) (tools.Tool, bool) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	tool, ok := r.tools[toolName]
+	return tool, ok
+}
+
+func (r *ResourceManager) GetToolset(toolsetName string) (tools.Toolset, bool) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	toolset, ok := r.toolsets[toolsetName]
+	return toolset, ok
+}
+
+func (r *ResourceManager) SetResources(sourcesMap map[string]sources.Source, authServicesMap map[string]auth.AuthService, toolsMap map[string]tools.Tool, toolsetsMap map[string]tools.Toolset) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	r.sources = sourcesMap
+	r.authServices = authServicesMap
+	r.tools = toolsMap
+	r.toolsets = toolsetsMap
+}
+
+func (r *ResourceManager) GetAuthServiceMap() map[string]auth.AuthService {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	return r.authServices
+}
+
+func (r *ResourceManager) GetToolsMap() map[string]tools.Tool {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	return r.tools
+}
+
+func InitializeConfigs(ctx context.Context, cfg ServerConfig) (
+	map[string]sources.Source,
+	map[string]auth.AuthService,
+	map[string]tools.Tool,
+	map[string]tools.Toolset,
+	error,
+) {
+	ctx = util.WithUserAgent(ctx, cfg.Version)
+	instrumentation, err := util.InstrumentationFromContext(ctx)
 	if err != nil {
-		return nil, fmt.Errorf("unable to create telemetry instrumentation: %w", err)
+		panic(err)
+	}
+
+	l, err := util.LoggerFromContext(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	// initialize and validate the sources from configs
+	sourcesMap := make(map[string]sources.Source)
+	for name, sc := range cfg.SourceConfigs {
+		s, err := func() (sources.Source, error) {
+			childCtx, span := instrumentation.Tracer.Start(
+				ctx,
+				"toolbox/server/source/init",
+				trace.WithAttributes(attribute.String("source_kind", sc.SourceConfigKind())),
+				trace.WithAttributes(attribute.String("source_name", name)),
+			)
+			defer span.End()
+			s, err := sc.Initialize(childCtx, instrumentation.Tracer)
+			if err != nil {
+				return nil, fmt.Errorf("unable to initialize source %q: %w", name, err)
+			}
+			return s, nil
+		}()
+		if err != nil {
+			return nil, nil, nil, nil, err
+		}
+		sourcesMap[name] = s
+	}
+	l.InfoContext(ctx, fmt.Sprintf("Initialized %d sources.", len(sourcesMap)))
+
+	// initialize and validate the auth services from configs
+	authServicesMap := make(map[string]auth.AuthService)
+	for name, sc := range cfg.AuthServiceConfigs {
+		a, err := func() (auth.AuthService, error) {
+			_, span := instrumentation.Tracer.Start(
+				ctx,
+				"toolbox/server/auth/init",
+				trace.WithAttributes(attribute.String("auth_kind", sc.AuthServiceConfigKind())),
+				trace.WithAttributes(attribute.String("auth_name", name)),
+			)
+			defer span.End()
+			a, err := sc.Initialize()
+			if err != nil {
+				return nil, fmt.Errorf("unable to initialize auth service %q: %w", name, err)
+			}
+			return a, nil
+		}()
+		if err != nil {
+			return nil, nil, nil, nil, err
+		}
+		authServicesMap[name] = a
+	}
+	l.InfoContext(ctx, fmt.Sprintf("Initialized %d authServices.", len(authServicesMap)))
+
+	// initialize and validate the tools from configs
+	toolsMap := make(map[string]tools.Tool)
+	for name, tc := range cfg.ToolConfigs {
+		t, err := func() (tools.Tool, error) {
+			_, span := instrumentation.Tracer.Start(
+				ctx,
+				"toolbox/server/tool/init",
+				trace.WithAttributes(attribute.String("tool_kind", tc.ToolConfigKind())),
+				trace.WithAttributes(attribute.String("tool_name", name)),
+			)
+			defer span.End()
+			t, err := tc.Initialize(sourcesMap)
+			if err != nil {
+				return nil, fmt.Errorf("unable to initialize tool %q: %w", name, err)
+			}
+			return t, nil
+		}()
+		if err != nil {
+			return nil, nil, nil, nil, err
+		}
+		toolsMap[name] = t
+	}
+	l.InfoContext(ctx, fmt.Sprintf("Initialized %d tools.", len(toolsMap)))
+
+	// create a default toolset that contains all tools
+	allToolNames := make([]string, 0, len(toolsMap))
+	for name := range toolsMap {
+		allToolNames = append(allToolNames, name)
+	}
+	if cfg.ToolsetConfigs == nil {
+		cfg.ToolsetConfigs = make(ToolsetConfigs)
+	}
+	cfg.ToolsetConfigs[""] = tools.ToolsetConfig{Name: "", ToolNames: allToolNames}
+
+	// initialize and validate the toolsets from configs
+	toolsetsMap := make(map[string]tools.Toolset)
+	for name, tc := range cfg.ToolsetConfigs {
+		t, err := func() (tools.Toolset, error) {
+			_, span := instrumentation.Tracer.Start(
+				ctx,
+				"toolbox/server/toolset/init",
+				trace.WithAttributes(attribute.String("toolset_name", name)),
+			)
+			defer span.End()
+			t, err := tc.Initialize(cfg.Version, toolsMap)
+			if err != nil {
+				return tools.Toolset{}, fmt.Errorf("unable to initialize toolset %q: %w", name, err)
+			}
+			return t, err
+		}()
+		if err != nil {
+			return nil, nil, nil, nil, err
+		}
+		toolsetsMap[name] = t
+	}
+	l.InfoContext(ctx, fmt.Sprintf("Initialized %d toolsets.", len(toolsetsMap)))
+
+	return sourcesMap, authServicesMap, toolsMap, toolsetsMap, nil
+}
+
+// NewServer returns a Server object based on provided Config.
+func NewServer(ctx context.Context, cfg ServerConfig) (*Server, error) {
+	instrumentation, err := util.InstrumentationFromContext(ctx)
+	if err != nil {
+		return nil, err
 	}
 
 	ctx, span := instrumentation.Tracer.Start(ctx, "toolbox/server/init")
 	defer span.End()
 
-	ctx = util.WithUserAgent(ctx, cfg.Version)
+	l, err := util.LoggerFromContext(ctx)
+	if err != nil {
+		return nil, err
+	}
 
 	// set up http serving
 	r := chi.NewRouter()
@@ -97,116 +298,18 @@ func NewServer(ctx context.Context, cfg ServerConfig, l log.Logger) (*Server, er
 	httpLogger := httplog.NewLogger("httplog", httpOpts)
 	r.Use(httplog.RequestLogger(httpLogger))
 
-	// initialize and validate the sources from configs
-	sourcesMap := make(map[string]sources.Source)
-	for name, sc := range cfg.SourceConfigs {
-		s, err := func() (sources.Source, error) {
-			childCtx, span := instrumentation.Tracer.Start(
-				ctx,
-				"toolbox/server/source/init",
-				trace.WithAttributes(attribute.String("source_kind", sc.SourceConfigKind())),
-				trace.WithAttributes(attribute.String("source_name", name)),
-			)
-			defer span.End()
-			s, err := sc.Initialize(childCtx, instrumentation.Tracer)
-			if err != nil {
-				return nil, fmt.Errorf("unable to initialize source %q: %w", name, err)
-			}
-			return s, nil
-		}()
-		if err != nil {
-			return nil, err
-		}
-		sourcesMap[name] = s
+	sourcesMap, authServicesMap, toolsMap, toolsetsMap, err := InitializeConfigs(ctx, cfg)
+	if err != nil {
+		return nil, fmt.Errorf("unable to initialize configs: %w", err)
 	}
-	l.InfoContext(ctx, fmt.Sprintf("Initialized %d sources.", len(sourcesMap)))
-
-	// initialize and validate the auth services from configs
-	authServicesMap := make(map[string]auth.AuthService)
-	for name, sc := range cfg.AuthServiceConfigs {
-		a, err := func() (auth.AuthService, error) {
-			_, span := instrumentation.Tracer.Start(
-				ctx,
-				"toolbox/server/auth/init",
-				trace.WithAttributes(attribute.String("auth_kind", sc.AuthServiceConfigKind())),
-				trace.WithAttributes(attribute.String("auth_name", name)),
-			)
-			defer span.End()
-			a, err := sc.Initialize()
-			if err != nil {
-				return nil, fmt.Errorf("unable to initialize auth service %q: %w", name, err)
-			}
-			return a, nil
-		}()
-		if err != nil {
-			return nil, err
-		}
-		authServicesMap[name] = a
-	}
-	l.InfoContext(ctx, fmt.Sprintf("Initialized %d authServices.", len(authServicesMap)))
-
-	// initialize and validate the tools from configs
-	toolsMap := make(map[string]tools.Tool)
-	for name, tc := range cfg.ToolConfigs {
-		t, err := func() (tools.Tool, error) {
-			_, span := instrumentation.Tracer.Start(
-				ctx,
-				"toolbox/server/tool/init",
-				trace.WithAttributes(attribute.String("tool_kind", tc.ToolConfigKind())),
-				trace.WithAttributes(attribute.String("tool_name", name)),
-			)
-			defer span.End()
-			t, err := tc.Initialize(sourcesMap)
-			if err != nil {
-				return nil, fmt.Errorf("unable to initialize tool %q: %w", name, err)
-			}
-			return t, nil
-		}()
-		if err != nil {
-			return nil, err
-		}
-		toolsMap[name] = t
-	}
-	l.InfoContext(ctx, fmt.Sprintf("Initialized %d tools.", len(toolsMap)))
-
-	// create a default toolset that contains all tools
-	allToolNames := make([]string, 0, len(toolsMap))
-	for name := range toolsMap {
-		allToolNames = append(allToolNames, name)
-	}
-	if cfg.ToolsetConfigs == nil {
-		cfg.ToolsetConfigs = make(ToolsetConfigs)
-	}
-	cfg.ToolsetConfigs[""] = tools.ToolsetConfig{Name: "", ToolNames: allToolNames}
-
-	// initialize and validate the toolsets from configs
-	toolsetsMap := make(map[string]tools.Toolset)
-	for name, tc := range cfg.ToolsetConfigs {
-		t, err := func() (tools.Toolset, error) {
-			_, span := instrumentation.Tracer.Start(
-				ctx,
-				"toolbox/server/toolset/init",
-				trace.WithAttributes(attribute.String("toolset_name", name)),
-			)
-			defer span.End()
-			t, err := tc.Initialize(cfg.Version, toolsMap)
-			if err != nil {
-				return tools.Toolset{}, fmt.Errorf("unable to initialize toolset %q: %w", name, err)
-			}
-			return t, err
-		}()
-		if err != nil {
-			return nil, err
-		}
-		toolsetsMap[name] = t
-	}
-	l.InfoContext(ctx, fmt.Sprintf("Initialized %d toolsets.", len(toolsetsMap)))
 
 	addr := net.JoinHostPort(cfg.Address, strconv.Itoa(cfg.Port))
 	srv := &http.Server{Addr: addr, Handler: r}
 
 	sseManager := newSseManager(ctx)
 
+	resourceManager := NewResourceManager(sourcesMap, authServicesMap, toolsMap, toolsetsMap)
+
 	s := &Server{
 		version:         cfg.Version,
 		srv:             srv,
@@ -214,11 +317,7 @@ func NewServer(ctx context.Context, cfg ServerConfig, l log.Logger) (*Server, er
 		logger:          l,
 		instrumentation: instrumentation,
 		sseManager:      sseManager,
-
-		sources:      sourcesMap,
-		authServices: authServicesMap,
-		tools:        toolsMap,
-		toolsets:     toolsetsMap,
+		ResourceMgr:     resourceManager,
 	}
 	// control plane
 	apiR, err := apiRouter(s)

internal/server/server_test.go

@@ -23,9 +23,16 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/google/go-cmp/cmp"
+	"github.com/googleapis/genai-toolbox/internal/auth"
 	"github.com/googleapis/genai-toolbox/internal/log"
 	"github.com/googleapis/genai-toolbox/internal/server"
+	"github.com/googleapis/genai-toolbox/internal/sources"
+	"github.com/googleapis/genai-toolbox/internal/sources/alloydbpg"
 	"github.com/googleapis/genai-toolbox/internal/telemetry"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
+	"github.com/googleapis/genai-toolbox/internal/tools"
+	"github.com/googleapis/genai-toolbox/internal/util"
 )
 
 func TestServe(t *testing.T) {
@@ -54,8 +61,16 @@ func TestServe(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %s", err)
 	}
+	ctx = util.WithLogger(ctx, testLogger)
 
-	s, err := server.NewServer(ctx, cfg, testLogger)
+	instrumentation, err := telemetry.CreateTelemetryInstrumentation(cfg.Version)
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+
+	ctx = util.WithInstrumentation(ctx, instrumentation)
+
+	s, err := server.NewServer(ctx, cfg)
 	if err != nil {
 		t.Fatalf("unable to initialize server: %v", err)
 	}
@@ -93,3 +108,67 @@ func TestServe(t *testing.T) {
 		t.Fatalf("version missing from output: %q", got)
 	}
 }
+
+func TestUpdateServer(t *testing.T) {
+	ctx, err := testutils.ContextWithNewLogger()
+	if err != nil {
+		t.Fatalf("error setting up logger: %s", err)
+	}
+
+	addr, port := "127.0.0.1", 5000
+	cfg := server.ServerConfig{
+		Version: "0.0.0",
+		Address: addr,
+		Port:    port,
+	}
+
+	instrumentation, err := telemetry.CreateTelemetryInstrumentation(cfg.Version)
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+
+	ctx = util.WithInstrumentation(ctx, instrumentation)
+
+	s, err := server.NewServer(ctx, cfg)
+	if err != nil {
+		t.Fatalf("error setting up server: %s", err)
+	}
+
+	newSources := map[string]sources.Source{
+		"example-source": &alloydbpg.Source{
+			Name: "example-alloydb-source",
+			Kind: "alloydb-postgres",
+		},
+	}
+	newAuth := map[string]auth.AuthService{"example-auth": nil}
+	newTools := map[string]tools.Tool{"example-tool": nil}
+	newToolsets := map[string]tools.Toolset{
+		"example-toolset": {
+			Name: "example-toolset", Tools: []*tools.Tool{},
+		},
+	}
+	s.ResourceMgr.SetResources(newSources, newAuth, newTools, newToolsets)
+	if err != nil {
+		t.Errorf("error updating server: %s", err)
+	}
+
+	gotSource, _ := s.ResourceMgr.GetSource("example-source")
+	if diff := cmp.Diff(gotSource, newSources["example-source"]); diff != "" {
+		t.Errorf("error updating server, sources (-want +got):\n%s", diff)
+	}
+
+	gotAuthService, _ := s.ResourceMgr.GetAuthService("example-auth")
+	if diff := cmp.Diff(gotAuthService, newAuth["example-auth"]); diff != "" {
+		t.Errorf("error updating server, authServices (-want +got):\n%s", diff)
+	}
+
+	gotTool, _ := s.ResourceMgr.GetTool("example-tool")
+	if diff := cmp.Diff(gotTool, newTools["example-tool"]); diff != "" {
+		t.Errorf("error updating server, tools (-want +got):\n%s", diff)
+	}
+
+	gotToolset, _ := s.ResourceMgr.GetToolset("example-toolset")
+	if diff := cmp.Diff(gotToolset, newToolsets["example-toolset"]); diff != "" {
+		t.Errorf("error updating server, toolset (-want +got):\n%s", diff)
+	}
+}

internal/sources/mysql/mysql.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"time"
 
 	_ "github.com/go-sql-driver/mysql"
 	"github.com/goccy/go-yaml"
@@ -45,13 +46,14 @@ func newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (sources
 }
 
 type Config struct {
-	Name     string `yaml:"name" validate:"required"`
-	Kind     string `yaml:"kind" validate:"required"`
-	Host     string `yaml:"host" validate:"required"`
-	Port     string `yaml:"port" validate:"required"`
-	User     string `yaml:"user" validate:"required"`
-	Password string `yaml:"password" validate:"required"`
-	Database string `yaml:"database" validate:"required"`
+	Name         string `yaml:"name" validate:"required"`
+	Kind         string `yaml:"kind" validate:"required"`
+	Host         string `yaml:"host" validate:"required"`
+	Port         string `yaml:"port" validate:"required"`
+	User         string `yaml:"user" validate:"required"`
+	Password     string `yaml:"password" validate:"required"`
+	Database     string `yaml:"database" validate:"required"`
+	QueryTimeout string `yaml:"queryTimeout"`
 }
 
 func (r Config) SourceConfigKind() string {
@@ -59,7 +61,7 @@ func (r Config) SourceConfigKind() string {
 }
 
 func (r Config) Initialize(ctx context.Context, tracer trace.Tracer) (sources.Source, error) {
-	pool, err := initMySQLConnectionPool(ctx, tracer, r.Name, r.Host, r.Port, r.User, r.Password, r.Database)
+	pool, err := initMySQLConnectionPool(ctx, tracer, r.Name, r.Host, r.Port, r.User, r.Password, r.Database, r.QueryTimeout)
 	if err != nil {
 		return nil, fmt.Errorf("unable to create pool: %w", err)
 	}
@@ -93,7 +95,7 @@ func (s *Source) MySQLPool() *sql.DB {
 	return s.Pool
 }
 
-func initMySQLConnectionPool(ctx context.Context, tracer trace.Tracer, name, host, port, user, pass, dbname string) (*sql.DB, error) {
+func initMySQLConnectionPool(ctx context.Context, tracer trace.Tracer, name, host, port, user, pass, dbname, queryTimeout string) (*sql.DB, error) {
 	//nolint:all // Reassigned ctx
 	ctx, span := sources.InitConnectionSpan(ctx, tracer, SourceKind, name)
 	defer span.End()
@@ -101,6 +103,15 @@ func initMySQLConnectionPool(ctx context.Context, tracer trace.Tracer, name, hos
 	// Configure the driver to connect to the database
 	dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?parseTime=true", user, pass, host, port, dbname)
 
+	// Add query timeout to DSN if specified
+	if queryTimeout != "" {
+		timeout, err := time.ParseDuration(queryTimeout)
+		if err != nil {
+			return nil, fmt.Errorf("invalid queryTimeout %q: %w", queryTimeout, err)
+		}
+		dsn += "&readTimeout=" + timeout.String()
+	}
+
 	// Interact with the driver directly as you normally would
 	pool, err := sql.Open("mysql", dsn)
 	if err != nil {

internal/sources/mysql/mysql_test.go

@@ -54,6 +54,32 @@ func TestParseFromYamlCloudSQLMySQL(t *testing.T) {
 				},
 			},
 		},
+		{
+			desc: "with query timeout",
+			in: `
+			sources:
+				my-mysql-instance:
+					kind: mysql
+					host: 0.0.0.0
+					port: my-port
+					database: my_db
+					user: my_user
+					password: my_pass
+					queryTimeout: 45s
+			`,
+			want: server.SourceConfigs{
+				"my-mysql-instance": mysql.Config{
+					Name:         "my-mysql-instance",
+					Kind:         mysql.SourceKind,
+					Host:         "0.0.0.0",
+					Port:         "my-port",
+					Database:     "my_db",
+					User:         "my_user",
+					Password:     "my_pass",
+					QueryTimeout: "45s",
+				},
+			},
+		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.desc, func(t *testing.T) {

internal/telemetry/instrumentation.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package server
+package telemetry
 
 import (
 	"fmt"

internal/telemetry/telemetry.go

@@ -28,7 +28,7 @@ import (
 	"go.opentelemetry.io/otel/sdk/metric"
 	"go.opentelemetry.io/otel/sdk/resource"
 	tracesdk "go.opentelemetry.io/otel/sdk/trace"
-	semconv "go.opentelemetry.io/otel/semconv/v1.26.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
 )
 
 // setupOTelSDK bootstraps the OpenTelemetry pipeline.

internal/testutils/testutils.go

@@ -15,9 +15,12 @@
 package testutils
 
 import (
+	"bufio"
 	"context"
 	"fmt"
+	"io"
 	"os"
+	"regexp"
 	"strings"
 
 	"github.com/googleapis/genai-toolbox/internal/log"
@@ -42,3 +45,63 @@ func ContextWithNewLogger() (context.Context, error) {
 	}
 	return util.WithLogger(ctx, logger), nil
 }
+
+// WaitForString waits until the server logs a single line that matches the provided regex.
+// returns the output of whatever the server sent so far.
+func WaitForString(ctx context.Context, re *regexp.Regexp, pr io.ReadCloser) (string, error) {
+	in := bufio.NewReader(pr)
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	// read lines in background, sending result of each read over a channel
+	// this allows us to use in.ReadString without blocking
+	type result struct {
+		s   string
+		err error
+	}
+	output := make(chan result)
+	go func() {
+		defer close(output)
+		for {
+			select {
+			case <-ctx.Done():
+				// if the context is canceled, the orig thread will send back the error
+				// so we can just exit the goroutine here
+				return
+			default:
+				// otherwise read a line from the output
+				s, err := in.ReadString('\n')
+				if err != nil {
+					output <- result{err: err}
+					return
+				}
+				output <- result{s: s}
+				// if that last string matched, exit the goroutine
+				if re.MatchString(s) {
+					return
+				}
+			}
+		}
+	}()
+
+	// collect the output until the ctx is canceled, an error was hit,
+	// or match was found (which is indicated the channel is closed)
+	var sb strings.Builder
+	for {
+		select {
+		case <-ctx.Done():
+			// if ctx is done, return that error
+			return sb.String(), ctx.Err()
+		case o, ok := <-output:
+			if !ok {
+				// match was found!
+				return sb.String(), nil
+			}
+			if o.err != nil {
+				// error was found!
+				return sb.String(), o.err
+			}
+			sb.WriteString(o.s)
+		}
+	}
+}

internal/tools/bigquery/bigquerygetdatasetinfo/bigquerygetdatasetinfo.go

@@ -26,6 +26,8 @@ import (
 )
 
 const kind string = "bigquery-get-dataset-info"
+const projectKey string = "project"
+const datasetKey string = "dataset"
 
 func init() {
 	if !tools.Register(kind, newConfig) {
@@ -78,8 +80,9 @@ func (cfg Config) Initialize(srcs map[string]sources.Source) (tools.Tool, error)
 		return nil, fmt.Errorf("invalid source for %q tool: source kind must be one of %q", kind, compatibleSources)
 	}
 
-	datasetParameter := tools.NewStringParameter("dataset", "The dataset to get metadata information.")
-	parameters := tools.Parameters{datasetParameter}
+	projectParameter := tools.NewStringParameterWithDefault(projectKey, s.BigQueryClient().Project(), "The Google Cloud project ID containing the dataset.")
+	datasetParameter := tools.NewStringParameter(datasetKey, "The dataset to get metadata information.")
+	parameters := tools.Parameters{projectParameter, datasetParameter}
 
 	mcpManifest := tools.McpManifest{
 		Name:        cfg.Name,
@@ -116,14 +119,18 @@ type Tool struct {
 }
 
 func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, error) {
-
-	sliceParams := params.AsSlice()
-	datasetId, ok := sliceParams[0].(string)
+	mapParams := params.AsMap()
+	projectId, ok := mapParams[projectKey].(string)
 	if !ok {
-		return nil, fmt.Errorf("unable to get cast %s", sliceParams[0])
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", projectKey)
 	}
 
-	dsHandle := t.Client.Dataset(datasetId)
+	datasetId, ok := mapParams[datasetKey].(string)
+	if !ok {
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", datasetKey)
+	}
+
+	dsHandle := t.Client.DatasetInProject(projectId, datasetId)
 
 	metadata, err := dsHandle.Metadata(ctx)
 	if err != nil {

internal/tools/bigquery/bigquerygettableinfo/bigquerygettableinfo.go

@@ -26,6 +26,9 @@ import (
 )
 
 const kind string = "bigquery-get-table-info"
+const projectKey string = "project"
+const datasetKey string = "dataset"
+const tableKey string = "table"
 
 func init() {
 	if !tools.Register(kind, newConfig) {
@@ -78,9 +81,10 @@ func (cfg Config) Initialize(srcs map[string]sources.Source) (tools.Tool, error)
 		return nil, fmt.Errorf("invalid source for %q tool: source kind must be one of %q", kind, compatibleSources)
 	}
 
-	datasetParameter := tools.NewStringParameter("dataset", "The table's parent dataset.")
-	tableParameter := tools.NewStringParameter("table", "The table to get metadata information.")
-	parameters := tools.Parameters{datasetParameter, tableParameter}
+	projectParameter := tools.NewStringParameterWithDefault(projectKey, s.BigQueryClient().Project(), "The Google Cloud project ID containing the dataset and table.")
+	datasetParameter := tools.NewStringParameter(datasetKey, "The table's parent dataset.")
+	tableParameter := tools.NewStringParameter(tableKey, "The table to get metadata information.")
+	parameters := tools.Parameters{projectParameter, datasetParameter, tableParameter}
 
 	mcpManifest := tools.McpManifest{
 		Name:        cfg.Name,
@@ -117,22 +121,28 @@ type Tool struct {
 }
 
 func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, error) {
-	sliceParams := params.AsSlice()
-	datasetId, ok := sliceParams[0].(string)
+	mapParams := params.AsMap()
+	projectId, ok := mapParams[projectKey].(string)
 	if !ok {
-		return nil, fmt.Errorf("unable to get cast %s", sliceParams[0])
-	}
-	tableId, ok := sliceParams[1].(string)
-	if !ok {
-		return nil, fmt.Errorf("unable to get cast %s", sliceParams[1])
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", projectKey)
 	}
 
-	dsHandle := t.Client.Dataset(datasetId)
+	datasetId, ok := mapParams[datasetKey].(string)
+	if !ok {
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", datasetKey)
+	}
+
+	tableId, ok := mapParams[tableKey].(string)
+	if !ok {
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", tableKey)
+	}
+
+	dsHandle := t.Client.DatasetInProject(projectId, datasetId)
 	tableHandle := dsHandle.Table(tableId)
 
 	metadata, err := tableHandle.Metadata(ctx)
 	if err != nil {
-		return nil, fmt.Errorf("failed to get metadata for table %s.%s.%s: %w", t.Client.Project(), datasetId, tableId, err)
+		return nil, fmt.Errorf("failed to get metadata for table %s.%s.%s: %w", projectId, datasetId, tableId, err)
 	}
 
 	return []any{metadata}, nil

internal/tools/bigquery/bigquerylistdatasetids/bigquerylistdatasetids.go

@@ -27,6 +27,7 @@ import (
 )
 
 const kind string = "bigquery-list-dataset-ids"
+const projectKey string = "project"
 
 func init() {
 	if !tools.Register(kind, newConfig) {
@@ -79,7 +80,9 @@ func (cfg Config) Initialize(srcs map[string]sources.Source) (tools.Tool, error)
 		return nil, fmt.Errorf("invalid source for %q tool: source kind must be one of %q", kind, compatibleSources)
 	}
 
-	parameters := tools.Parameters{}
+	projectParameter := tools.NewStringParameterWithDefault(projectKey, s.BigQueryClient().Project(), "The Google Cloud project to list dataset ids.")
+
+	parameters := tools.Parameters{projectParameter}
 
 	mcpManifest := tools.McpManifest{
 		Name:        cfg.Name,
@@ -116,7 +119,13 @@ type Tool struct {
 }
 
 func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, error) {
+	mapParams := params.AsMap()
+	projectId, ok := mapParams[projectKey].(string)
+	if !ok {
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", projectKey)
+	}
 	datasetIterator := t.Client.Datasets(ctx)
+	datasetIterator.ProjectID = projectId
 
 	var datasetIds []any
 	for {

internal/tools/bigquery/bigquerylisttableids/bigquerylisttableids.go

@@ -27,6 +27,8 @@ import (
 )
 
 const kind string = "bigquery-list-table-ids"
+const projectKey string = "project"
+const datasetKey string = "dataset"
 
 func init() {
 	if !tools.Register(kind, newConfig) {
@@ -79,8 +81,9 @@ func (cfg Config) Initialize(srcs map[string]sources.Source) (tools.Tool, error)
 		return nil, fmt.Errorf("invalid source for %q tool: source kind must be one of %q", kind, compatibleSources)
 	}
 
-	datasetParameter := tools.NewStringParameter("dataset", "The dataset to list table ids.")
-	parameters := tools.Parameters{datasetParameter}
+	projectParameter := tools.NewStringParameterWithDefault(projectKey, s.BigQueryClient().Project(), "The Google Cloud project ID containing the dataset.")
+	datasetParameter := tools.NewStringParameter(datasetKey, "The dataset to list table ids.")
+	parameters := tools.Parameters{projectParameter, datasetParameter}
 
 	mcpManifest := tools.McpManifest{
 		Name:        cfg.Name,
@@ -117,14 +120,18 @@ type Tool struct {
 }
 
 func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, error) {
-
-	sliceParams := params.AsSlice()
-	datasetId, ok := sliceParams[0].(string)
+	mapParams := params.AsMap()
+	projectId, ok := mapParams[projectKey].(string)
 	if !ok {
-		return nil, fmt.Errorf("unable to get cast %s", sliceParams[0])
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", projectKey)
 	}
 
-	dsHandle := t.Client.Dataset(datasetId)
+	datasetId, ok := mapParams[datasetKey].(string)
+	if !ok {
+		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", datasetKey)
+	}
+
+	dsHandle := t.Client.DatasetInProject(projectId, datasetId)
 
 	var tableIds []any
 	tableIterator := dsHandle.Tables(ctx)

internal/tools/bigquery/bigquerysql/bigquerysql.go

@@ -139,13 +139,17 @@ func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, erro
 		// BigQuery's QueryParameter only accepts typed slices as input
 		// This checks if the param is an array.
 		// If yes, convert []any to typed slice (e.g []string, []int)
-		switch arrayParam := value.(type) {
-		case []any:
+		switch arrayParam := p.(type) {
+		case *tools.ArrayParameter:
+			arrayParamValue, ok := value.([]any)
+			if !ok {
+				return nil, fmt.Errorf("unable to convert parameter `%s` to []any %w", name, err)
+			}
+			itemType := arrayParam.GetItems().GetType()
 			var err error
-			itemType := p.McpManifest().Items.Type
-			value, err = convertAnySliceToTyped(arrayParam, itemType, name)
+			value, err = tools.ConvertAnySliceToTyped(arrayParamValue, itemType)
 			if err != nil {
-				return nil, fmt.Errorf("unable to convert []any to typed slice: %w", err)
+				return nil, fmt.Errorf("unable to convert parameter `%s` from []any to typed slice: %w", name, err)
 			}
 		}
 
@@ -205,47 +209,3 @@ func (t Tool) McpManifest() tools.McpManifest {
 func (t Tool) Authorized(verifiedAuthServices []string) bool {
 	return tools.IsAuthorized(t.AuthRequired, verifiedAuthServices)
 }
-
-func convertAnySliceToTyped(s []any, itemType, paramName string) (any, error) {
-	var typedSlice any
-	switch itemType {
-	case "string":
-		typedSlice := make([]string, len(s))
-		for j, item := range s {
-			if s, ok := item.(string); ok {
-				typedSlice[j] = s
-			} else {
-				return nil, fmt.Errorf("parameter '%s': expected item at index %d to be string, got %T", paramName, j, item)
-			}
-		}
-	case "integer":
-		typedSlice := make([]int64, len(s))
-		for j, item := range s {
-			i, ok := item.(int)
-			if !ok {
-				return nil, fmt.Errorf("parameter '%s': expected item at index %d to be integer, got %T", paramName, j, item)
-			}
-			typedSlice[j] = int64(i)
-		}
-	case "float":
-		typedSlice := make([]float64, len(s))
-		for j, item := range s {
-			if f, ok := item.(float64); ok {
-				typedSlice[j] = f
-			} else {
-				return nil, fmt.Errorf("parameter '%s': expected item at index %d to be float, got %T", paramName, j, item)
-			}
-		}
-	case "boolean":
-		typedSlice := make([]bool, len(s))
-		for j, item := range s {
-			if b, ok := item.(bool); ok {
-				typedSlice[j] = b
-			} else {
-				return nil, fmt.Errorf("parameter '%s': expected item at index %d to be boolean, got %T", paramName, j, item)
-			}
-		}
-
-	}
-	return typedSlice, nil
-}

internal/tools/bigtable/bigtable.go

@@ -122,29 +122,43 @@ type Tool struct {
 	mcpManifest tools.McpManifest
 }
 
+func getBigtableType(paramType string) (bigtable.SQLType, error) {
+	switch paramType {
+	case "boolean":
+		return bigtable.BoolSQLType{}, nil
+	case "string":
+		return bigtable.StringSQLType{}, nil
+	case "integer":
+		return bigtable.Int64SQLType{}, nil
+	case "float":
+		return bigtable.Float64SQLType{}, nil
+	case "array":
+		return bigtable.ArraySQLType{}, nil
+	default:
+		return nil, fmt.Errorf("unknow param type %s", paramType)
+	}
+}
+
 func getMapParamsType(tparams tools.Parameters, params tools.ParamValues) (map[string]bigtable.SQLType, error) {
-	paramTypeMap := make(map[string]string)
+	btParamTypes := make(map[string]bigtable.SQLType)
 	for _, p := range tparams {
-		paramTypeMap[p.GetName()] = p.GetType()
-	}
-
-	btParams := make(map[string]bigtable.SQLType)
-	for _, p := range params {
-		switch paramTypeMap[p.Name] {
-		case "boolean":
-			btParams[p.Name] = bigtable.BoolSQLType{}
-		case "string":
-			btParams[p.Name] = bigtable.StringSQLType{}
-		case "integer":
-			btParams[p.Name] = bigtable.Int64SQLType{}
-		case "float":
-			btParams[p.Name] = bigtable.Float64SQLType{}
-		case "array":
-			btParams[p.Name] = bigtable.ArraySQLType{}
+		if p.GetType() == "array" {
+			itemType, err := getBigtableType(p.Manifest().Items.Type)
+			if err != nil {
+				return nil, err
+			}
+			btParamTypes[p.GetName()] = bigtable.ArraySQLType{
+				ElemType: itemType,
+			}
+			continue
 		}
+		paramType, err := getBigtableType(p.GetType())
+		if err != nil {
+			return nil, err
+		}
+		btParamTypes[p.GetName()] = paramType
 	}
-
-	return btParams, nil
+	return btParamTypes, nil
 }
 
 func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, error) {

internal/tools/common.go

@@ -15,6 +15,7 @@
 package tools
 
 import (
+	"fmt"
 	"regexp"
 )
 
@@ -23,3 +24,50 @@ var validName = regexp.MustCompile(`^[a-zA-Z0-9_-]*$`)
 func IsValidName(s string) bool {
 	return validName.MatchString(s)
 }
+
+func ConvertAnySliceToTyped(s []any, itemType string) (any, error) {
+	var typedSlice any
+	switch itemType {
+	case "string":
+		tempSlice := make([]string, len(s))
+		for j, item := range s {
+			s, ok := item.(string)
+			if !ok {
+				return nil, fmt.Errorf("expected item at index %d to be string, got %T", j, item)
+			}
+			tempSlice[j] = s
+		}
+		typedSlice = tempSlice
+	case "integer":
+		tempSlice := make([]int64, len(s))
+		for j, item := range s {
+			i, ok := item.(int)
+			if !ok {
+				return nil, fmt.Errorf("expected item at index %d to be integer, got %T", j, item)
+			}
+			tempSlice[j] = int64(i)
+		}
+		typedSlice = tempSlice
+	case "float":
+		tempSlice := make([]float64, len(s))
+		for j, item := range s {
+			f, ok := item.(float64)
+			if !ok {
+				return nil, fmt.Errorf("expected item at index %d to be float, got %T", j, item)
+			}
+			tempSlice[j] = f
+		}
+		typedSlice = tempSlice
+	case "boolean":
+		tempSlice := make([]bool, len(s))
+		for j, item := range s {
+			b, ok := item.(bool)
+			if !ok {
+				return nil, fmt.Errorf("expected item at index %d to be boolean, got %T", j, item)
+			}
+			tempSlice[j] = b
+		}
+		typedSlice = tempSlice
+	}
+	return typedSlice, nil
+}

internal/tools/http/http.go

@@ -275,7 +275,11 @@ func getURL(baseURL, path string, pathParams, queryParams tools.Parameters, defa
 	// Set dynamic query parameters
 	query := parsedURL.Query()
 	for _, p := range queryParams {
-		query.Add(p.GetName(), fmt.Sprintf("%v", paramsMap[p.GetName()]))
+		v := paramsMap[p.GetName()]
+		if v == nil {
+			v = ""
+		}
+		query.Add(p.GetName(), fmt.Sprintf("%v", v))
 	}
 	parsedURL.RawQuery = query.Encode()
 	return parsedURL.String(), nil

internal/tools/parameters.go

@@ -32,6 +32,7 @@ const (
 	typeFloat  = "float"
 	typeBool   = "boolean"
 	typeArray  = "array"
+	typeObject = "object"
 )
 
 // ParamValues is an ordered list of ParamValue
@@ -109,11 +110,17 @@ func parseFromAuthService(paramAuthServices []ParamAuthService, claimsMap map[st
 	return nil, fmt.Errorf("missing or invalid authentication header")
 }
 
+// CheckParamRequired checks if a parameter is required based on the required and default field.
+func CheckParamRequired(required bool, defaultV any) bool {
+	return required && defaultV == nil
+}
+
 // ParseParams is a helper function for parsing Parameters from an arbitraryJSON object.
 func ParseParams(ps Parameters, data map[string]any, claimsMap map[string]map[string]any) (ParamValues, error) {
 	params := make([]ParamValue, 0, len(ps))
 	for _, p := range ps {
-		var v any
+		var v, newV any
+		var err error
 		paramAuthServices := p.GetAuthServices()
 		name := p.GetName()
 		if len(paramAuthServices) == 0 {
@@ -122,21 +129,23 @@ func ParseParams(ps Parameters, data map[string]any, claimsMap map[string]map[st
 			v, ok = data[name]
 			if !ok {
 				v = p.GetDefault()
-				if v == nil {
+				// if the parameter is required and no value given, throw an error
+				if CheckParamRequired(p.GetRequired(), v) {
 					return nil, fmt.Errorf("parameter %q is required", name)
 				}
 			}
 		} else {
 			// parse authenticated parameter
-			var err error
 			v, err = parseFromAuthService(paramAuthServices, claimsMap)
 			if err != nil {
 				return nil, fmt.Errorf("error parsing authenticated parameter %q: %w", name, err)
 			}
 		}
-		newV, err := p.Parse(v)
-		if err != nil {
-			return nil, fmt.Errorf("unable to parse value for %q: %w", name, err)
+		if v != nil {
+			newV, err = p.Parse(v)
+			if err != nil {
+				return nil, fmt.Errorf("unable to parse value for %q: %w", name, err)
+			}
 		}
 		params = append(params, ParamValue{Name: name, Value: newV})
 	}
@@ -248,6 +257,7 @@ type Parameter interface {
 	GetName() string
 	GetType() string
 	GetDefault() any
+	GetRequired() bool
 	GetAuthServices() []ParamAuthService
 	Parse(any) (any, error)
 	Manifest() ParameterManifest
@@ -358,6 +368,17 @@ func parseParamFromDelayedUnmarshaler(ctx context.Context, u *util.DelayedUnmars
 			a.AuthSources = nil
 		}
 		return a, nil
+	case typeObject:
+		a := &ObjectParameter{}
+		if err := dec.DecodeContext(ctx, a); err != nil {
+			return nil, fmt.Errorf("unable to parse as %q: %w", t, err)
+		}
+		if a.AuthSources != nil {
+			logger.WarnContext(ctx, "`authSources` is deprecated, use `authServices` for parameters instead")
+			a.AuthServices = append(a.AuthServices, a.AuthSources...)
+			a.AuthSources = nil
+		}
+		return a, nil
 	}
 	return nil, fmt.Errorf("%q is not valid type for a parameter", t)
 }
@@ -378,7 +399,7 @@ func (ps Parameters) McpManifest() McpToolsSchema {
 		name := p.GetName()
 		properties[name] = p.McpManifest()
 		// parameters that doesn't have a default value are added to the required field
-		if p.GetDefault() == nil {
+		if CheckParamRequired(p.GetRequired(), p.GetDefault()) {
 			required = append(required, name)
 		}
 	}
@@ -392,19 +413,23 @@ func (ps Parameters) McpManifest() McpToolsSchema {
 
 // ParameterManifest represents parameters when served as part of a ToolManifest.
 type ParameterManifest struct {
-	Name         string             `json:"name"`
-	Type         string             `json:"type"`
-	Required     bool               `json:"required"`
-	Description  string             `json:"description"`
-	AuthServices []string           `json:"authSources"`
-	Items        *ParameterManifest `json:"items,omitempty"`
+	Name                 string                        `json:"name"`
+	Type                 string                        `json:"type"`
+	Required             bool                          `json:"required"`
+	Description          string                        `json:"description"`
+	AuthServices         []string                      `json:"authSources"`
+	Items                *ParameterManifest            `json:"items,omitempty"`
+	Properties           map[string]*ParameterManifest `json:"properties,omitempty"`
+	AdditionalProperties *ParameterManifest            `json:"additionalProperties,omitempty"`
 }
 
 // ParameterMcpManifest represents properties when served as part of a ToolMcpManifest.
 type ParameterMcpManifest struct {
-	Type        string                `json:"type"`
-	Description string                `json:"description"`
-	Items       *ParameterMcpManifest `json:"items,omitempty"`
+	Type                 string                           `json:"type"`
+	Description          string                           `json:"description"`
+	Items                *ParameterMcpManifest            `json:"items,omitempty"`
+	Properties           map[string]*ParameterMcpManifest `json:"properties,omitempty"`
+	AdditionalProperties *ParameterMcpManifest            `json:"addtionalProperties,omitempty"`
 }
 
 // CommonParameter are default fields that are emebdding in most Parameter implementations. Embedding this stuct will give the object Name() and Type() functions.
@@ -412,6 +437,7 @@ type CommonParameter struct {
 	Name         string             `yaml:"name" validate:"required"`
 	Type         string             `yaml:"type" validate:"required"`
 	Desc         string             `yaml:"description" validate:"required"`
+	Required     *bool              `yaml:"required"`
 	AuthServices []ParamAuthService `yaml:"authServices"`
 	AuthSources  []ParamAuthService `yaml:"authSources"` // Deprecated: Kept for compatibility.
 }
@@ -426,6 +452,15 @@ func (p *CommonParameter) GetType() string {
 	return p.Type
 }
 
+// GetRequired returns the type specified for the Parameter.
+func (p *CommonParameter) GetRequired() bool {
+	// parameters are defaulted to required
+	if p.Required == nil {
+		return true
+	}
+	return *p.Required
+}
+
 // McpManifest returns the MCP manifest for the Parameter.
 func (p *CommonParameter) McpManifest() ParameterMcpManifest {
 	return ParameterMcpManifest{
@@ -475,6 +510,19 @@ func NewStringParameterWithDefault(name string, defaultV, desc string) *StringPa
 	}
 }
 
+// NewStringParameterWithRequired is a convenience function for initializing a StringParameter.
+func NewStringParameterWithRequired(name string, desc string, required bool) *StringParameter {
+	return &StringParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeString,
+			Desc:         desc,
+			Required:     &required,
+			AuthServices: nil,
+		},
+	}
+}
+
 // NewStringParameterWithAuth is a convenience function for initializing a StringParameter with a list of ParamAuthService.
 func NewStringParameterWithAuth(name string, desc string, authServices []ParamAuthService) *StringParameter {
 	return &StringParameter{
@@ -522,11 +570,11 @@ func (p *StringParameter) Manifest() ParameterManifest {
 	for i, a := range p.AuthServices {
 		authNames[i] = a.Name
 	}
-	required := p.Default == nil
+	r := CheckParamRequired(p.GetRequired(), p.GetDefault())
 	return ParameterManifest{
 		Name:         p.Name,
 		Type:         p.Type,
-		Required:     required,
+		Required:     r,
 		Description:  p.Desc,
 		AuthServices: authNames,
 	}
@@ -557,6 +605,19 @@ func NewIntParameterWithDefault(name string, defaultV int, desc string) *IntPara
 	}
 }
 
+// NewIntParameterWithRequired is a convenience function for initializing a IntParameter.
+func NewIntParameterWithRequired(name string, desc string, required bool) *IntParameter {
+	return &IntParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeInt,
+			Desc:         desc,
+			Required:     &required,
+			AuthServices: nil,
+		},
+	}
+}
+
 // NewIntParameterWithAuth is a convenience function for initializing a IntParameter with a list of ParamAuthService.
 func NewIntParameterWithAuth(name string, desc string, authServices []ParamAuthService) *IntParameter {
 	return &IntParameter{
@@ -616,11 +677,11 @@ func (p *IntParameter) Manifest() ParameterManifest {
 	for i, a := range p.AuthServices {
 		authNames[i] = a.Name
 	}
-	required := p.Default == nil
+	r := CheckParamRequired(p.GetRequired(), p.GetDefault())
 	return ParameterManifest{
 		Name:         p.Name,
 		Type:         p.Type,
-		Required:     required,
+		Required:     r,
 		Description:  p.Desc,
 		AuthServices: authNames,
 	}
@@ -651,6 +712,19 @@ func NewFloatParameterWithDefault(name string, defaultV float64, desc string) *F
 	}
 }
 
+// NewFloatParameterWithRequired is a convenience function for initializing a FloatParameter.
+func NewFloatParameterWithRequired(name string, desc string, required bool) *FloatParameter {
+	return &FloatParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeFloat,
+			Desc:         desc,
+			Required:     &required,
+			AuthServices: nil,
+		},
+	}
+}
+
 // NewFloatParameterWithAuth is a convenience function for initializing a FloatParameter with a list of ParamAuthService.
 func NewFloatParameterWithAuth(name string, desc string, authServices []ParamAuthService) *FloatParameter {
 	return &FloatParameter{
@@ -708,11 +782,11 @@ func (p *FloatParameter) Manifest() ParameterManifest {
 	for i, a := range p.AuthServices {
 		authNames[i] = a.Name
 	}
-	required := p.Default == nil
+	r := CheckParamRequired(p.GetRequired(), p.GetDefault())
 	return ParameterManifest{
 		Name:         p.Name,
 		Type:         p.Type,
-		Required:     required,
+		Required:     r,
 		Description:  p.Desc,
 		AuthServices: authNames,
 	}
@@ -743,6 +817,19 @@ func NewBooleanParameterWithDefault(name string, defaultV bool, desc string) *Bo
 	}
 }
 
+// NewBooleanParameterWithRequired is a convenience function for initializing a BooleanParameter.
+func NewBooleanParameterWithRequired(name string, desc string, required bool) *BooleanParameter {
+	return &BooleanParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeBool,
+			Desc:         desc,
+			Required:     &required,
+			AuthServices: nil,
+		},
+	}
+}
+
 // NewBooleanParameterWithAuth is a convenience function for initializing a BooleanParameter with a list of ParamAuthService.
 func NewBooleanParameterWithAuth(name string, desc string, authServices []ParamAuthService) *BooleanParameter {
 	return &BooleanParameter{
@@ -789,11 +876,11 @@ func (p *BooleanParameter) Manifest() ParameterManifest {
 	for i, a := range p.AuthServices {
 		authNames[i] = a.Name
 	}
-	required := p.Default == nil
+	r := CheckParamRequired(p.GetRequired(), p.GetDefault())
 	return ParameterManifest{
 		Name:         p.Name,
 		Type:         p.Type,
-		Required:     required,
+		Required:     r,
 		Description:  p.Desc,
 		AuthServices: authNames,
 	}
@@ -826,6 +913,20 @@ func NewArrayParameterWithDefault(name string, defaultV []any, desc string, item
 	}
 }
 
+// NewArrayParameterWithRequired is a convenience function for initializing a ArrayParameter with default value.
+func NewArrayParameterWithRequired(name string, desc string, required bool, items Parameter) *ArrayParameter {
+	return &ArrayParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeArray,
+			Desc:         desc,
+			Required:     &required,
+			AuthServices: nil,
+		},
+		Items: items,
+	}
+}
+
 // NewArrayParameterWithAuth is a convenience function for initializing a ArrayParameter with a list of ParamAuthService.
 func NewArrayParameterWithAuth(name string, desc string, items Parameter, authServices []ParamAuthService) *ArrayParameter {
 	return &ArrayParameter{
@@ -898,6 +999,10 @@ func (p *ArrayParameter) GetDefault() any {
 	return *p.Default
 }
 
+func (p *ArrayParameter) GetItems() Parameter {
+	return p.Items
+}
+
 // Manifest returns the manifest for the ArrayParameter.
 func (p *ArrayParameter) Manifest() ParameterManifest {
 	// only list ParamAuthService names (without fields) in manifest
@@ -906,12 +1011,13 @@ func (p *ArrayParameter) Manifest() ParameterManifest {
 		authNames[i] = a.Name
 	}
 	items := p.Items.Manifest()
-	required := p.Default == nil
-	items.Required = required
+	// if required value is true, or there's no default value
+	r := CheckParamRequired(p.GetRequired(), p.GetDefault())
+	items.Required = r
 	return ParameterManifest{
 		Name:         p.Name,
 		Type:         p.Type,
-		Required:     required,
+		Required:     r,
 		Description:  p.Desc,
 		AuthServices: authNames,
 		Items:        &items,
@@ -932,3 +1038,194 @@ func (p *ArrayParameter) McpManifest() ParameterMcpManifest {
 		Items:       &items,
 	}
 }
+
+// NewObjectParameter is a convenience function for initializing a ObjectParameter.
+func NewObjectParameter(name string, desc string, properties map[string]Parameter, additionalProperties Parameter) *ObjectParameter {
+	return &ObjectParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeObject,
+			Desc:         desc,
+			AuthServices: nil,
+		},
+		Properties:           properties,
+		AdditionalProperties: additionalProperties,
+	}
+}
+
+// NewObjectParameterWithDefault is a convenience function for initializing a ObjectParameter with default value.
+func NewObjectParameterWithDefault(name string, defaultV map[string]any, desc string, properties map[string]Parameter, additionalProperties Parameter) *ObjectParameter {
+	return &ObjectParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeObject,
+			Desc:         desc,
+			AuthServices: nil,
+		},
+		Default:              &defaultV,
+		Properties:           properties,
+		AdditionalProperties: additionalProperties,
+	}
+}
+
+// NewObjectParameterWithAuth is a convenience function for initializing a ObjectParameter with a list of ParamAuthService.
+func NewObjectParameterWithAuth(name string, desc string, authServices []ParamAuthService, properties map[string]Parameter, additionalProperties Parameter) *ObjectParameter {
+	return &ObjectParameter{
+		CommonParameter: CommonParameter{
+			Name:         name,
+			Type:         typeObject,
+			Desc:         desc,
+			AuthServices: authServices,
+		},
+		Properties:           properties,
+		AdditionalProperties: additionalProperties,
+	}
+}
+
+var _ Parameter = &ObjectParameter{}
+
+// ObjectParameter is a parameter representing the "map" type.
+type ObjectParameter struct {
+	CommonParameter      `yaml:",inline"`
+	Default              *map[string]any      `yaml:"default"`
+	Properties           map[string]Parameter `yaml:"properties"`
+	AdditionalProperties Parameter            `yaml:"addtionalProperties"`
+}
+
+func (p *ObjectParameter) UnmarshalYAML(ctx context.Context, unmarshal func(interface{}) error) error {
+	var rawItem struct {
+		CommonParameter      `yaml:",inline"`
+		Default              *map[string]any                     `yaml:"default"`
+		Properties           map[string]*util.DelayedUnmarshaler `yaml:"properties"`
+		AdditionalProperties *util.DelayedUnmarshaler            `yaml:"additionalProperties"`
+	}
+	if err := unmarshal(&rawItem); err != nil {
+		return err
+	}
+	p.CommonParameter = rawItem.CommonParameter
+	p.Default = rawItem.Default
+
+	if rawItem.AdditionalProperties != nil {
+		param, err := parseParamFromDelayedUnmarshaler(ctx, rawItem.AdditionalProperties)
+		if err != nil {
+			return fmt.Errorf("failed to parse additionalProperties: %w", err)
+		}
+		p.AdditionalProperties = param
+	}
+
+	if len(rawItem.Properties) == 0 {
+		return nil
+	}
+
+	p.Properties = make(map[string]Parameter, len(rawItem.Properties))
+	for key, delayedParam := range rawItem.Properties {
+		// Parse individual property parameters
+		param, err := parseParamFromDelayedUnmarshaler(ctx, delayedParam)
+		if err != nil {
+			return fmt.Errorf("failed to parse property %q: %w", key, err)
+		}
+		p.Properties[key] = param
+	}
+
+	return nil
+}
+
+func (p *ObjectParameter) Parse(v any) (any, error) {
+	objVal, ok := v.(map[string]any)
+	if !ok {
+		return nil, &ParseTypeError{p.Name, p.Type, v}
+	}
+
+	parsedObj := make(map[string]any, len(objVal))
+
+	for key, val := range objVal {
+		var (
+			parsedVal any
+			err       error
+		)
+		propertySchema, isDefinedProperty := p.Properties[key]
+
+		if isDefinedProperty {
+			// If the property is explicitly defined in the schema.
+			parsedVal, err = propertySchema.Parse(val)
+			if err != nil {
+				return nil, fmt.Errorf("unable to parse property %q: %w", key, err)
+			}
+		} else if p.AdditionalProperties != nil {
+			// If the property is not defined, but the schema allows additional properties.
+			parsedVal, err = p.AdditionalProperties.Parse(val)
+			if err != nil {
+				return nil, fmt.Errorf("unable to parse additional property %q: %w", key, err)
+			}
+		} else {
+			return nil, fmt.Errorf("unknown property %q found and additional properties are not allowed", key)
+		}
+
+		parsedObj[key] = parsedVal
+	}
+
+	return parsedObj, nil
+}
+
+func (p *ObjectParameter) GetAuthServices() []ParamAuthService {
+	return p.AuthServices
+}
+
+func (p *ObjectParameter) GetDefault() any {
+	if p.Default == nil {
+		return nil
+	}
+	return *p.Default
+}
+
+// Manifest returns the manifest for the ObjectParameter.
+func (p *ObjectParameter) Manifest() ParameterManifest {
+	// only list ParamAuthService names (without fields) in manifest
+	authNames := make([]string, len(p.AuthServices))
+	for i, a := range p.AuthServices {
+		authNames[i] = a.Name
+	}
+	required := p.Default == nil
+	propertiesManifest := make(map[string]*ParameterManifest, len(p.Properties))
+	for key, p := range p.Properties {
+		m := p.Manifest()
+		propertiesManifest[key] = &m
+	}
+	var apManifest ParameterManifest
+	if p.AdditionalProperties != nil {
+		apManifest = p.AdditionalProperties.Manifest()
+	}
+	return ParameterManifest{
+		Name:                 p.Name,
+		Type:                 p.Type,
+		Required:             required,
+		Description:          p.Desc,
+		AuthServices:         authNames,
+		Properties:           propertiesManifest,
+		AdditionalProperties: &apManifest,
+	}
+}
+
+// McpManifest returns the MCP manifest for the ObjectParameter.
+func (p *ObjectParameter) McpManifest() ParameterMcpManifest {
+	// only list ParamAuthService names (without fields) in manifest
+	authNames := make([]string, len(p.AuthServices))
+	for i, a := range p.AuthServices {
+		authNames[i] = a.Name
+	}
+	propertiesManifest := make(map[string]*ParameterMcpManifest, len(p.Properties))
+	for key, p := range p.Properties {
+		m := p.McpManifest()
+		propertiesManifest[key] = &m
+	}
+	var apManifest ParameterMcpManifest
+	if p.AdditionalProperties != nil {
+		apManifest = p.AdditionalProperties.McpManifest()
+	}
+	return ParameterMcpManifest{
+		Type:                 p.Type,
+		Description:          p.Desc,
+		Properties:           propertiesManifest,
+		AdditionalProperties: &apManifest,
+	}
+}

internal/tools/parameters_test.go

@@ -23,6 +23,7 @@ import (
 
 	yaml "github.com/goccy/go-yaml"
 	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
 	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/internal/tools"
 )
@@ -50,6 +51,20 @@ func TestParametersMarshal(t *testing.T) {
 				tools.NewStringParameter("my_string", "this param is a string"),
 			},
 		},
+		{
+			name: "string not required",
+			in: []map[string]any{
+				{
+					"name":        "my_string",
+					"type":        "string",
+					"description": "this param is a string",
+					"required":    false,
+				},
+			},
+			want: tools.Parameters{
+				tools.NewStringParameterWithRequired("my_string", "this param is a string", false),
+			},
+		},
 		{
 			name: "int",
 			in: []map[string]any{
@@ -63,6 +78,20 @@ func TestParametersMarshal(t *testing.T) {
 				tools.NewIntParameter("my_integer", "this param is an int"),
 			},
 		},
+		{
+			name: "int not required",
+			in: []map[string]any{
+				{
+					"name":        "my_integer",
+					"type":        "integer",
+					"description": "this param is an int",
+					"required":    false,
+				},
+			},
+			want: tools.Parameters{
+				tools.NewIntParameterWithRequired("my_integer", "this param is an int", false),
+			},
+		},
 		{
 			name: "float",
 			in: []map[string]any{
@@ -76,6 +105,20 @@ func TestParametersMarshal(t *testing.T) {
 				tools.NewFloatParameter("my_float", "my param is a float"),
 			},
 		},
+		{
+			name: "float not required",
+			in: []map[string]any{
+				{
+					"name":        "my_float",
+					"type":        "float",
+					"description": "my param is a float",
+					"required":    false,
+				},
+			},
+			want: tools.Parameters{
+				tools.NewFloatParameterWithRequired("my_float", "my param is a float", false),
+			},
+		},
 		{
 			name: "bool",
 			in: []map[string]any{
@@ -89,6 +132,20 @@ func TestParametersMarshal(t *testing.T) {
 				tools.NewBooleanParameter("my_bool", "this param is a boolean"),
 			},
 		},
+		{
+			name: "bool not required",
+			in: []map[string]any{
+				{
+					"name":        "my_bool",
+					"type":        "boolean",
+					"description": "this param is a boolean",
+					"required":    false,
+				},
+			},
+			want: tools.Parameters{
+				tools.NewBooleanParameterWithRequired("my_bool", "this param is a boolean", false),
+			},
+		},
 		{
 			name: "string array",
 			in: []map[string]any{
@@ -107,6 +164,25 @@ func TestParametersMarshal(t *testing.T) {
 				tools.NewArrayParameter("my_array", "this param is an array of strings", tools.NewStringParameter("my_string", "string item")),
 			},
 		},
+		{
+			name: "string array not required",
+			in: []map[string]any{
+				{
+					"name":        "my_array",
+					"type":        "array",
+					"description": "this param is an array of strings",
+					"required":    false,
+					"items": map[string]string{
+						"name":        "my_string",
+						"type":        "string",
+						"description": "string item",
+					},
+				},
+			},
+			want: tools.Parameters{
+				tools.NewArrayParameterWithRequired("my_array", "this param is an array of strings", false, tools.NewStringParameter("my_string", "string item")),
+			},
+		},
 		{
 			name: "float array",
 			in: []map[string]any{
@@ -125,6 +201,31 @@ func TestParametersMarshal(t *testing.T) {
 				tools.NewArrayParameter("my_array", "this param is an array of floats", tools.NewFloatParameter("my_float", "float item")),
 			},
 		},
+		{
+			name: "object",
+			in: []map[string]any{
+				{
+					"name":        "my_object",
+					"type":        "object",
+					"description": "this param is an object",
+					"properties": map[string]any{
+						"k1": map[string]any{
+							"name":        "k1",
+							"type":        "float",
+							"description": "float property",
+						},
+						"k2": map[string]any{
+							"name":        "k2",
+							"type":        "string",
+							"description": "string property",
+						},
+					},
+				},
+			},
+			want: tools.Parameters{
+				tools.NewObjectParameter("my_object", "this param is an object", map[string]tools.Parameter{"k1": tools.NewFloatParameter("k1", "float property"), "k2": tools.NewStringParameter("k2", "string property")}, nil),
+			},
+		},
 		{
 			name: "string default",
 			in: []map[string]any{
@@ -219,6 +320,37 @@ func TestParametersMarshal(t *testing.T) {
 				tools.NewArrayParameterWithDefault("my_array", []any{1.0, 1.1}, "this param is an array of floats", tools.NewFloatParameter("my_float", "float item")),
 			},
 		},
+		{
+			name: "object",
+			in: []map[string]any{
+				{
+					"name":        "my_object",
+					"type":        "object",
+					"default":     map[string]any{"hello": "world"},
+					"description": "this param is an object",
+					"properties": map[string]any{
+						"k1": map[string]any{
+							"name":        "k1",
+							"type":        "float",
+							"description": "float property",
+						},
+						"k2": map[string]any{
+							"name":        "k2",
+							"type":        "string",
+							"description": "string property",
+						},
+					},
+					"additionalProperties": map[string]any{
+						"name":        "strProperty",
+						"type":        "string",
+						"description": "string property",
+					},
+				},
+			},
+			want: tools.Parameters{
+				tools.NewObjectParameterWithDefault("my_object", map[string]any{"hello": "world"}, "this param is an object", map[string]tools.Parameter{"k1": tools.NewFloatParameter("k1", "float property"), "k2": tools.NewStringParameter("k2", "string property")}, tools.NewStringParameter("strProperty", "string property")),
+			},
+		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
@@ -275,13 +407,13 @@ func TestAuthParametersMarshal(t *testing.T) {
 			},
 		},
 		{
-			name: "string with authSources",
+			name: "string with authServices",
 			in: []map[string]any{
 				{
 					"name":        "my_string",
 					"type":        "string",
 					"description": "this param is a string",
-					"authSources": []map[string]string{
+					"authServices": []map[string]string{
 						{
 							"name":  "my-google-auth-service",
 							"field": "user_id",
@@ -321,13 +453,13 @@ func TestAuthParametersMarshal(t *testing.T) {
 			},
 		},
 		{
-			name: "int with authSources",
+			name: "int with authServices",
 			in: []map[string]any{
 				{
 					"name":        "my_integer",
 					"type":        "integer",
 					"description": "this param is an int",
-					"authSources": []map[string]string{
+					"authServices": []map[string]string{
 						{
 							"name":  "my-google-auth-service",
 							"field": "user_id",
@@ -367,13 +499,13 @@ func TestAuthParametersMarshal(t *testing.T) {
 			},
 		},
 		{
-			name: "float with authSources",
+			name: "float with authServices",
 			in: []map[string]any{
 				{
 					"name":        "my_float",
 					"type":        "float",
 					"description": "my param is a float",
-					"authSources": []map[string]string{
+					"authServices": []map[string]string{
 						{
 							"name":  "my-google-auth-service",
 							"field": "user_id",
@@ -413,13 +545,13 @@ func TestAuthParametersMarshal(t *testing.T) {
 			},
 		},
 		{
-			name: "bool with authSources",
+			name: "bool with authServices",
 			in: []map[string]any{
 				{
 					"name":        "my_bool",
 					"type":        "boolean",
 					"description": "this param is a boolean",
-					"authSources": []map[string]string{
+					"authServices": []map[string]string{
 						{
 							"name":  "my-google-auth-service",
 							"field": "user_id",
@@ -464,7 +596,7 @@ func TestAuthParametersMarshal(t *testing.T) {
 			},
 		},
 		{
-			name: "string array with authSources",
+			name: "string array with authServices",
 			in: []map[string]any{
 				{
 					"name":        "my_array",
@@ -475,7 +607,7 @@ func TestAuthParametersMarshal(t *testing.T) {
 						"type":        "string",
 						"description": "string item",
 					},
-					"authSources": []map[string]string{
+					"authServices": []map[string]string{
 						{
 							"name":  "my-google-auth-service",
 							"field": "user_id",
@@ -519,6 +651,46 @@ func TestAuthParametersMarshal(t *testing.T) {
 				tools.NewArrayParameterWithAuth("my_array", "this param is an array of floats", tools.NewFloatParameter("my_float", "float item"), authServices),
 			},
 		},
+		{
+			name: "object",
+			in: []map[string]any{
+				{
+					"name":        "my_object",
+					"type":        "object",
+					"description": "this param is an object",
+					"authServices": []map[string]string{
+						{
+							"name":  "my-google-auth-service",
+							"field": "user_id",
+						},
+						{
+							"name":  "other-auth-service",
+							"field": "user_id",
+						},
+					},
+					"properties": map[string]any{
+						"k1": map[string]any{
+							"name":        "k1",
+							"type":        "float",
+							"description": "float property",
+						},
+						"k2": map[string]any{
+							"name":        "k2",
+							"type":        "string",
+							"description": "string property",
+						},
+					},
+					"additionalProperties": map[string]any{
+						"name":        "strProperty",
+						"type":        "string",
+						"description": "string property",
+					},
+				},
+			},
+			want: tools.Parameters{
+				tools.NewObjectParameterWithAuth("my_object", "this param is an object", authServices, map[string]tools.Parameter{"k1": tools.NewFloatParameter("k1", "float property"), "k2": tools.NewStringParameter("k2", "string property")}, tools.NewStringParameter("strProperty", "string property")),
+			},
+		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
@@ -542,10 +714,11 @@ func TestAuthParametersMarshal(t *testing.T) {
 
 func TestParametersParse(t *testing.T) {
 	tcs := []struct {
-		name   string
-		params tools.Parameters
-		in     map[string]any
-		want   tools.ParamValues
+		name    string
+		params  tools.Parameters
+		in      map[string]any
+		want    tools.ParamValues
+		wantErr bool
 	}{
 		{
 			name: "string",
@@ -565,6 +738,7 @@ func TestParametersParse(t *testing.T) {
 			in: map[string]any{
 				"my_string": 4,
 			},
+			wantErr: true,
 		},
 		{
 			name: "int",
@@ -584,16 +758,17 @@ func TestParametersParse(t *testing.T) {
 			in: map[string]any{
 				"my_int": 14.5,
 			},
+			wantErr: true,
 		},
 		{
-			name: "not int (big)",
+			name: "int from json.Number",
 			params: tools.Parameters{
 				tools.NewIntParameter("my_int", "this param is an int"),
 			},
 			in: map[string]any{
-				"my_int": math.MaxInt64,
+				"my_int": json.Number("9223372036854775807"),
 			},
-			want: tools.ParamValues{tools.ParamValue{Name: "my_int", Value: math.MaxInt64}},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_int", Value: int(math.MaxInt64)}},
 		},
 		{
 			name: "float",
@@ -613,6 +788,7 @@ func TestParametersParse(t *testing.T) {
 			in: map[string]any{
 				"my_float": true,
 			},
+			wantErr: true,
 		},
 		{
 			name: "bool",
@@ -632,6 +808,7 @@ func TestParametersParse(t *testing.T) {
 			in: map[string]any{
 				"my_bool": 1.5,
 			},
+			wantErr: true,
 		},
 		{
 			name: "string default",
@@ -673,44 +850,135 @@ func TestParametersParse(t *testing.T) {
 			in:   map[string]any{},
 			want: tools.ParamValues{tools.ParamValue{Name: "my_bool", Value: true}},
 		},
+		{
+			name: "string not required",
+			params: tools.Parameters{
+				tools.NewStringParameterWithRequired("my_string", "this param is a string", false),
+			},
+			in:   map[string]any{},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_string", Value: nil}},
+		},
+		{
+			name: "int not required",
+			params: tools.Parameters{
+				tools.NewIntParameterWithRequired("my_int", "this param is an int", false),
+			},
+			in:   map[string]any{},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_int", Value: nil}},
+		},
+		{
+			name: "float not required",
+			params: tools.Parameters{
+				tools.NewFloatParameterWithRequired("my_float", "this param is a float", false),
+			},
+			in:   map[string]any{},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_float", Value: nil}},
+		},
+		{
+			name: "bool not required",
+			params: tools.Parameters{
+				tools.NewBooleanParameterWithRequired("my_bool", "this param is a bool", false),
+			},
+			in:   map[string]any{},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_bool", Value: nil}},
+		},
+		{
+			name: "array of strings",
+			params: tools.Parameters{
+				tools.NewArrayParameter("my_array", "an array", tools.NewStringParameter("item", "a string item")),
+			},
+			in:   map[string]any{"my_array": []any{"a", "b", "c"}},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_array", Value: []any{"a", "b", "c"}}},
+		},
+		{
+			name: "array with item type mismatch",
+			params: tools.Parameters{
+				tools.NewArrayParameter("my_array", "an array", tools.NewIntParameter("item", "an int item")),
+			},
+			in:      map[string]any{"my_array": []any{1, "b", 3}},
+			wantErr: true,
+		},
+		{
+			name: "array not required",
+			params: tools.Parameters{
+				tools.NewArrayParameterWithRequired("my_array", "an array", false, tools.NewStringParameter("item", "a string item")),
+			},
+			in:   map[string]any{},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_array", Value: nil}},
+		},
+		{
+			name: "array with default",
+			params: tools.Parameters{
+				tools.NewArrayParameterWithDefault("my_array", []any{"x", "y"}, "an array", tools.NewStringParameter("item", "a string item")),
+			},
+			in:   map[string]any{},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_array", Value: []any{"x", "y"}}},
+		},
+		{
+			name: "object",
+			params: tools.Parameters{
+				tools.NewObjectParameter("my_object", "an object", map[string]tools.Parameter{
+					"key1": tools.NewStringParameter("key1", "string value"),
+					"key2": tools.NewIntParameter("key2", "int value"),
+				}, nil),
+			},
+			in: map[string]any{"my_object": map[string]any{
+				"key1": "hello",
+				"key2": 123,
+			}},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_object", Value: map[string]any{
+				"key1": "hello",
+				"key2": 123,
+			}}},
+		},
+		{
+			name: "object with property type mismatch",
+			params: tools.Parameters{
+				tools.NewObjectParameter("my_object", "an object", map[string]tools.Parameter{
+					"key1": tools.NewStringParameter("key1", "string value"),
+				}, nil),
+			},
+			in:      map[string]any{"my_object": map[string]any{"key1": 123}},
+			wantErr: true,
+		},
+		{
+			name: "object with missing required property",
+			params: tools.Parameters{
+				tools.NewObjectParameter("my_object", "an object", map[string]tools.Parameter{
+					"required_key": tools.NewStringParameter("required_key", "a required value"),
+				}, nil),
+			},
+			in:      map[string]any{"my_object": map[string]any{"another_key": "foo"}},
+			wantErr: true,
+		},
+		{
+			name: "object with default",
+			params: tools.Parameters{
+				tools.NewObjectParameterWithDefault("my_object", map[string]any{"key1": "default"}, "an object", map[string]tools.Parameter{
+					"key1": tools.NewStringParameter("key1", "string value"),
+				}, nil),
+			},
+			in:   map[string]any{},
+			want: tools.ParamValues{tools.ParamValue{Name: "my_object", Value: map[string]any{"key1": "default"}}},
+		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
-			// parse map to bytes
-			data, err := json.Marshal(tc.in)
-			if err != nil {
-				t.Fatalf("unable to marshal input to yaml: %s", err)
-			}
-			// parse bytes to object
-			var m map[string]any
+			got, err := tools.ParseParams(tc.params, tc.in, make(map[string]map[string]any))
 
-			d := json.NewDecoder(bytes.NewReader(data))
-			d.UseNumber()
-			err = d.Decode(&m)
-			if err != nil {
-				t.Fatalf("unable to unmarshal: %s", err)
-			}
-
-			wantErr := len(tc.want) == 0 // error is expected if no items in want
-			gotAll, err := tools.ParseParams(tc.params, m, make(map[string]map[string]any))
-			if err != nil {
-				if wantErr {
-					return
+			if tc.wantErr {
+				if err == nil {
+					t.Fatal("expected error but got nil")
 				}
+				return
+			}
+
+			if err != nil {
 				t.Fatalf("unexpected error from ParseParams: %s", err)
 			}
-			if wantErr {
-				t.Fatalf("expected error but Param parsed successfully: %s", gotAll)
-			}
-			for i, got := range gotAll {
-				want := tc.want[i]
-				if got != want {
-					t.Fatalf("unexpected value: got %q, want %q", got, want)
-				}
-				gotType, wantType := reflect.TypeOf(got), reflect.TypeOf(want)
-				if gotType != wantType {
-					t.Fatalf("unexpected value: got %q, want %q", got, want)
-				}
+
+			if diff := cmp.Diff(tc.want, got); diff != "" {
+				t.Fatalf("ParseParams() mismatch (-want +got):\n%s", diff)
 			}
 		})
 	}
@@ -968,7 +1236,27 @@ func TestParamManifest(t *testing.T) {
 				Required:     true,
 				Description:  "bar",
 				AuthServices: []string{},
-				Items:        &tools.ParameterManifest{Name: "foo-string", Type: "string", Required: true, Description: "bar", AuthServices: []string{}},
+				Items: &tools.ParameterManifest{
+					Name:         "foo-string",
+					Type:         "string",
+					Required:     true,
+					Description:  "bar",
+					AuthServices: []string{}},
+			},
+		},
+		{
+			name: "object",
+			in:   tools.NewObjectParameter("foo-object", "bar", map[string]tools.Parameter{"propertyName": tools.NewStringParameter("property", "property desc")}, tools.NewStringParameter("strProperty", "string property")),
+			want: tools.ParameterManifest{
+				Name:         "foo-object",
+				Type:         "object",
+				Required:     true,
+				Description:  "bar",
+				AuthServices: []string{},
+				Properties: map[string]*tools.ParameterManifest{"propertyName": {
+					Name: "property", Type: "string",
+					Required: true, Description: "property desc", AuthServices: []string{}}},
+				AdditionalProperties: &tools.ParameterManifest{Name: "strProperty", Type: "string", Required: true, Description: "string property", AuthServices: []string{}},
 			},
 		},
 		{
@@ -1003,12 +1291,57 @@ func TestParamManifest(t *testing.T) {
 				Items:        &tools.ParameterManifest{Name: "foo-string", Type: "string", Required: false, Description: "bar", AuthServices: []string{}},
 			},
 		},
+		{
+			name: "string not required",
+			in:   tools.NewStringParameterWithRequired("foo-string", "bar", false),
+			want: tools.ParameterManifest{Name: "foo-string", Type: "string", Required: false, Description: "bar", AuthServices: []string{}},
+		},
+		{
+			name: "int not required",
+			in:   tools.NewIntParameterWithRequired("foo-int", "bar", false),
+			want: tools.ParameterManifest{Name: "foo-int", Type: "integer", Required: false, Description: "bar", AuthServices: []string{}},
+		},
+		{
+			name: "float not required",
+			in:   tools.NewFloatParameterWithRequired("foo-float", "bar", false),
+			want: tools.ParameterManifest{Name: "foo-float", Type: "float", Required: false, Description: "bar", AuthServices: []string{}},
+		},
+		{
+			name: "boolean not required",
+			in:   tools.NewBooleanParameterWithRequired("foo-bool", "bar", false),
+			want: tools.ParameterManifest{Name: "foo-bool", Type: "boolean", Required: false, Description: "bar", AuthServices: []string{}},
+		},
+		{
+			name: "array not required",
+			in:   tools.NewArrayParameterWithRequired("foo-array", "bar", false, tools.NewStringParameter("foo-string", "bar")),
+			want: tools.ParameterManifest{
+				Name:         "foo-array",
+				Type:         "array",
+				Required:     false,
+				Description:  "bar",
+				AuthServices: []string{},
+				Items:        &tools.ParameterManifest{Name: "foo-string", Type: "string", Required: false, Description: "bar", AuthServices: []string{}},
+			},
+		},
+		{
+			name: "object default",
+			in:   tools.NewObjectParameterWithDefault("object-default", map[string]any{"hello": "world"}, "bar", map[string]tools.Parameter{"k1": tools.NewFloatParameter("k1", "float property")}, nil),
+			want: tools.ParameterManifest{
+				Name:                 "object-default",
+				Type:                 "object",
+				Required:             false,
+				Description:          "bar",
+				AuthServices:         []string{},
+				Properties:           map[string]*tools.ParameterManifest{"k1": {Name: "k1", Type: "float", Required: true, Description: "float property", AuthServices: []string{}}},
+				AdditionalProperties: &tools.ParameterManifest{},
+			},
+		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
 			got := tc.in.Manifest()
-			if !reflect.DeepEqual(got, tc.want) {
-				t.Fatalf("unexpected manifest: got %+v, want %+v", got, tc.want)
+			if diff := cmp.Diff(tc.want, got); diff != "" {
+				t.Fatalf("unexpected manifest (-want +got):\n%s", diff)
 			}
 		})
 	}
@@ -1049,12 +1382,22 @@ func TestParamMcpManifest(t *testing.T) {
 				Items:       &tools.ParameterMcpManifest{Type: "string", Description: "bar"},
 			},
 		},
+		{
+			name: "object",
+			in:   tools.NewObjectParameter("foo-object", "bar", map[string]tools.Parameter{"k1": tools.NewStringParameter("k1", "bar")}, tools.NewStringParameter("p1", "additional property")),
+			want: tools.ParameterMcpManifest{
+				Type:                 "object",
+				Description:          "bar",
+				Properties:           map[string]*tools.ParameterMcpManifest{"k1": {Type: "string", Description: "bar"}},
+				AdditionalProperties: &tools.ParameterMcpManifest{Type: "string", Description: "additional property"},
+			},
+		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
 			got := tc.in.McpManifest()
-			if !reflect.DeepEqual(got, tc.want) {
-				t.Fatalf("unexpected manifest: got %+v, want %+v", got, tc.want)
+			if diff := cmp.Diff(tc.want, got); diff != "" {
+				t.Fatalf("unexpected manifest (-want +got):\n%s", diff)
 			}
 		})
 	}
@@ -1067,42 +1410,49 @@ func TestMcpManifest(t *testing.T) {
 		want tools.McpToolsSchema
 	}{
 		{
-			name: "string",
+			name: "various parameters",
 			in: tools.Parameters{
 				tools.NewStringParameterWithDefault("foo-string", "foo", "bar"),
 				tools.NewStringParameter("foo-string2", "bar"),
+				tools.NewStringParameterWithRequired("foo-string-req", "bar", true),
+				tools.NewStringParameterWithRequired("foo-string-not-req", "bar", false),
 				tools.NewIntParameterWithDefault("foo-int", 1, "bar"),
 				tools.NewIntParameter("foo-int2", "bar"),
-				tools.NewArrayParameterWithDefault("foo-array", []any{"hello", "world"}, "bar", tools.NewStringParameter("foo-string", "bar")),
-				tools.NewArrayParameter("foo-array2", "bar", tools.NewStringParameter("foo-string", "bar")),
+				tools.NewArrayParameterWithDefault("foo-array", []any{"hello", "world"}, "bar", tools.NewStringParameter("foo-string-item", "bar")),
+				tools.NewArrayParameter("foo-array2", "bar", tools.NewStringParameter("foo-string-item2", "bar")),
+				tools.NewObjectParameter("foo-object", "bar", map[string]tools.Parameter{"k1": tools.NewFloatParameter("k1", "float property")}, nil),
 			},
 			want: tools.McpToolsSchema{
 				Type: "object",
 				Properties: map[string]tools.ParameterMcpManifest{
-					"foo-string":  tools.ParameterMcpManifest{Type: "string", Description: "bar"},
-					"foo-string2": tools.ParameterMcpManifest{Type: "string", Description: "bar"},
-					"foo-int":     tools.ParameterMcpManifest{Type: "integer", Description: "bar"},
-					"foo-int2":    tools.ParameterMcpManifest{Type: "integer", Description: "bar"},
-					"foo-array": tools.ParameterMcpManifest{
+					"foo-string":         {Type: "string", Description: "bar"},
+					"foo-string2":        {Type: "string", Description: "bar"},
+					"foo-string-req":     {Type: "string", Description: "bar"},
+					"foo-string-not-req": {Type: "string", Description: "bar"},
+					"foo-int":            {Type: "integer", Description: "bar"},
+					"foo-int2":           {Type: "integer", Description: "bar"},
+					"foo-array": {
 						Type:        "array",
 						Description: "bar",
 						Items:       &tools.ParameterMcpManifest{Type: "string", Description: "bar"},
 					},
-					"foo-array2": tools.ParameterMcpManifest{
+					"foo-array2": {
 						Type:        "array",
 						Description: "bar",
 						Items:       &tools.ParameterMcpManifest{Type: "string", Description: "bar"},
 					},
+					"foo-object": {Type: "object", Description: "bar", Properties: map[string]*tools.ParameterMcpManifest{"k1": {Type: "float", Description: "float property"}}, AdditionalProperties: &tools.ParameterMcpManifest{}},
 				},
-				Required: []string{"foo-string2", "foo-int2", "foo-array2"},
+				Required: []string{"foo-array2", "foo-int2", "foo-object", "foo-string-req", "foo-string2"},
 			},
 		},
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
 			got := tc.in.McpManifest()
-			if !reflect.DeepEqual(got, tc.want) {
-				t.Fatalf("unexpected manifest: got %+v, want %+v", got, tc.want)
+			opts := cmpopts.SortSlices(func(a, b string) bool { return a < b })
+			if diff := cmp.Diff(tc.want, got, opts); diff != "" {
+				t.Fatalf("unexpected manifest (-want +got):\n%s", diff)
 			}
 		})
 	}
@@ -1502,3 +1852,45 @@ func TestFailResolveTemplateParameters(t *testing.T) {
 		})
 	}
 }
+
+func TestCheckParamRequired(t *testing.T) {
+	tcs := []struct {
+		name     string
+		required bool
+		defaultV any
+		want     bool
+	}{
+		{
+			name:     "required and no default",
+			required: true,
+			defaultV: nil,
+			want:     true,
+		},
+		{
+			name:     "required and default",
+			required: true,
+			defaultV: "foo",
+			want:     false,
+		},
+		{
+			name:     "not required and no default",
+			required: false,
+			defaultV: nil,
+			want:     false,
+		},
+		{
+			name:     "not required and default",
+			required: false,
+			defaultV: "foo",
+			want:     false,
+		},
+	}
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			got := tools.CheckParamRequired(tc.required, tc.defaultV)
+			if got != tc.want {
+				t.Fatalf("got %v, want %v", got, tc.want)
+			}
+		})
+	}
+}

internal/tools/redis/redis.go

@@ -177,6 +177,7 @@ func (t Tool) Authorized(verifiedAuthServices []string) bool {
 }
 
 // replaceCommandsParams is a helper function to replace parameters in the commands
+
 func replaceCommandsParams(commands [][]string, params tools.Parameters, paramValues tools.ParamValues) ([][]any, error) {
 	paramMap := paramValues.AsMapWithDollarPrefix()
 	typeMap := make(map[string]string, len(params))
@@ -186,12 +187,12 @@ func replaceCommandsParams(commands [][]string, params tools.Parameters, paramVa
 	}
 	newCommands := make([][]any, len(commands))
 	for i, cmd := range commands {
-		newCmd := make([]any, len(cmd))
-		for j, part := range cmd {
+		newCmd := make([]any, 0)
+		for _, part := range cmd {
 			v, ok := paramMap[part]
 			if !ok {
 				// Command part is not a Parameter placeholder
-				newCmd[j] = part
+				newCmd = append(newCmd, part)
 				continue
 			}
 			if typeMap[part] == "array" {
@@ -202,7 +203,7 @@ func replaceCommandsParams(commands [][]string, params tools.Parameters, paramVa
 				}
 				continue
 			}
-			newCmd[j] = fmt.Sprintf("%s", v)
+			newCmd = append(newCmd, fmt.Sprintf("%s", v))
 		}
 		newCommands[i] = newCmd
 	}

internal/tools/spanner/spannersql/spannersql.go

@@ -175,6 +175,30 @@ func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, erro
 	if err != nil {
 		return nil, fmt.Errorf("unable to extract standard params %w", err)
 	}
+
+	for i, p := range t.Parameters {
+		name := p.GetName()
+		value := newParams[i].Value
+
+		// Spanner only accepts typed slices as input
+		// This checks if the param is an array.
+		// If yes, convert []any to typed slice (e.g []string, []int)
+		switch arrayParam := p.(type) {
+		case *tools.ArrayParameter:
+			arrayParamValue, ok := value.([]any)
+			if !ok {
+				return nil, fmt.Errorf("unable to convert parameter `%s` to []any %w", name, err)
+			}
+			itemType := arrayParam.GetItems().GetType()
+			var err error
+			value, err = tools.ConvertAnySliceToTyped(arrayParamValue, itemType)
+			if err != nil {
+				return nil, fmt.Errorf("unable to convert parameter `%s` from []any to typed slice: %w", name, err)
+			}
+		}
+		newParams[i] = tools.ParamValue{Name: name, Value: value}
+	}
+
 	mapParams, err := getMapParams(newParams, t.dialect)
 	if err != nil {
 		return nil, fmt.Errorf("fail to get map params: %w", err)

internal/tools/utility/wait/wait.go

@@ -0,0 +1,120 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package wait
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	yaml "github.com/goccy/go-yaml"
+	"github.com/googleapis/genai-toolbox/internal/sources"
+	"github.com/googleapis/genai-toolbox/internal/tools"
+)
+
+const kind string = "wait"
+
+func init() {
+	if !tools.Register(kind, newConfig) {
+		panic(fmt.Sprintf("tool kind %q already registered", kind))
+	}
+}
+
+func newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (tools.ToolConfig, error) {
+	actual := Config{Name: name}
+	if err := decoder.DecodeContext(ctx, &actual); err != nil {
+		return nil, err
+	}
+	return actual, nil
+}
+
+type Config struct {
+	Name         string   `yaml:"name" validate:"required"`
+	Kind         string   `yaml:"kind" validate:"required"`
+	Description  string   `yaml:"description" validate:"required"`
+	Timeout      string   `yaml:"timeout" validate:"required"`
+	AuthRequired []string `yaml:"authRequired"`
+}
+
+var _ tools.ToolConfig = Config{}
+
+func (cfg Config) ToolConfigKind() string {
+	return kind
+}
+
+func (cfg Config) Initialize(_ map[string]sources.Source) (tools.Tool, error) {
+	durationParameter := tools.NewStringParameter("duration", "The duration to wait for, specified as a string (e.g., '10s', '2m', '1h').")
+	parameters := tools.Parameters{durationParameter}
+
+	mcpManifest := tools.McpManifest{
+		Name:        cfg.Name,
+		Description: cfg.Description,
+		InputSchema: parameters.McpManifest(),
+	}
+
+	t := Tool{
+		Name:        cfg.Name,
+		Kind:        kind,
+		Parameters:  parameters,
+		manifest:    tools.Manifest{Description: cfg.Description, Parameters: parameters.Manifest(), AuthRequired: cfg.AuthRequired},
+		mcpManifest: mcpManifest,
+	}
+	return t, nil
+}
+
+// validate interface
+var _ tools.Tool = Tool{}
+
+type Tool struct {
+	Name        string
+	Kind        string
+	Parameters  tools.Parameters
+	manifest    tools.Manifest
+	mcpManifest tools.McpManifest
+}
+
+func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, error) {
+	paramsMap := params.AsMap()
+
+	durationStr, ok := paramsMap["duration"].(string)
+	if !ok {
+		return nil, fmt.Errorf("duration parameter is not a string")
+	}
+
+	totalDuration, err := time.ParseDuration(durationStr)
+	if err != nil {
+		return nil, fmt.Errorf("invalid duration format: %w", err)
+	}
+
+	time.Sleep(totalDuration)
+
+	return []any{fmt.Sprintf("Wait for %v completed successfully.", totalDuration)}, nil
+}
+
+func (t Tool) ParseParams(data map[string]any, claims map[string]map[string]any) (tools.ParamValues, error) {
+	return tools.ParseParams(t.Parameters, data, claims)
+}
+
+func (t Tool) Manifest() tools.Manifest {
+	return t.manifest
+}
+
+func (t Tool) McpManifest() tools.McpManifest {
+	return t.mcpManifest
+}
+
+func (t Tool) Authorized(verifiedAuthServices []string) bool {
+	return true
+}

internal/tools/utility/wait/wait_test.go

@@ -0,0 +1,75 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package wait_test
+
+import (
+	"testing"
+
+	yaml "github.com/goccy/go-yaml"
+	"github.com/google/go-cmp/cmp"
+	"github.com/googleapis/genai-toolbox/internal/server"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
+
+	wait "github.com/googleapis/genai-toolbox/internal/tools/utility/wait"
+)
+
+func TestParseFromYamlWait(t *testing.T) {
+	ctx, err := testutils.ContextWithNewLogger()
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+	tcs := []struct {
+		desc string
+		in   string
+		want server.ToolConfigs
+	}{
+		{
+			desc: "basic example",
+			in: `
+			tools:
+				example_tool:
+					kind: wait
+					description: some description
+					timeout: 10s
+					authRequired:
+						- my-google-auth-service
+			`,
+			want: server.ToolConfigs{
+				"example_tool": wait.Config{
+					Name:         "example_tool",
+					Kind:         "wait",
+					Description:  "some description",
+					Timeout:      "10s",
+					AuthRequired: []string{"my-google-auth-service"},
+				},
+			},
+		},
+	}
+	for _, tc := range tcs {
+		t.Run(tc.desc, func(t *testing.T) {
+			got := struct {
+				Tools server.ToolConfigs `yaml:"tools"`
+			}{}
+			// Parse contents
+			err := yaml.UnmarshalContext(ctx, testutils.FormatYaml(tc.in), &got)
+			if err != nil {
+				t.Fatalf("unable to unmarshal: %s", err)
+			}
+			if diff := cmp.Diff(tc.want, got.Tools); diff != "" {
+				t.Fatalf("incorrect parse: diff %v", diff)
+			}
+		})
+	}
+}

internal/tools/valkey/valkey.go

@@ -154,7 +154,7 @@ func (t Tool) Invoke(ctx context.Context, params tools.ParamValues) ([]any, erro
 	return out, nil
 }
 
-// Helper function to replace parameters in the commands
+// replaceCommandsParams is a helper function to replace parameters in the commands
 func replaceCommandsParams(commands [][]string, params tools.Parameters, paramValues tools.ParamValues) ([][]string, error) {
 	paramMap := paramValues.AsMapWithDollarPrefix()
 	typeMap := make(map[string]string, len(params))
@@ -162,14 +162,15 @@ func replaceCommandsParams(commands [][]string, params tools.Parameters, paramVa
 		placeholder := "$" + p.GetName()
 		typeMap[placeholder] = p.GetType()
 	}
+
 	newCommands := make([][]string, len(commands))
 	for i, cmd := range commands {
-		newCmd := make([]string, len(cmd))
-		for j, part := range cmd {
+		newCmd := make([]string, 0)
+		for _, part := range cmd {
 			v, ok := paramMap[part]
 			if !ok {
 				// Command part is not a Parameter placeholder
-				newCmd[j] = part
+				newCmd = append(newCmd, part)
 				continue
 			}
 			if typeMap[part] == "array" {
@@ -180,7 +181,7 @@ func replaceCommandsParams(commands [][]string, params tools.Parameters, paramVa
 				}
 				continue
 			}
-			newCmd[j] = fmt.Sprintf("%s", v)
+			newCmd = append(newCmd, fmt.Sprintf("%s", v))
 		}
 		newCommands[i] = newCmd
 	}

internal/util/util.go

@@ -23,6 +23,7 @@ import (
 	"github.com/go-playground/validator/v10"
 	yaml "github.com/goccy/go-yaml"
 	"github.com/googleapis/genai-toolbox/internal/log"
+	"github.com/googleapis/genai-toolbox/internal/telemetry"
 )
 
 // DecodeJSON decodes a given reader into an interface using the json decoder.
@@ -98,10 +99,25 @@ func WithLogger(ctx context.Context, logger log.Logger) context.Context {
 	return context.WithValue(ctx, loggerKey, logger)
 }
 
-// LoggerFromContext retreives the logger or return an error
+// LoggerFromContext retrieves the logger or return an error
 func LoggerFromContext(ctx context.Context) (log.Logger, error) {
 	if logger, ok := ctx.Value(loggerKey).(log.Logger); ok {
 		return logger, nil
 	}
 	return nil, fmt.Errorf("unable to retrieve logger")
 }
+
+const instrumentationKey contextKey = "instrumentation"
+
+// WithInstrumentation adds an instrumentation into the context as a value
+func WithInstrumentation(ctx context.Context, instrumentation *telemetry.Instrumentation) context.Context {
+	return context.WithValue(ctx, instrumentationKey, instrumentation)
+}
+
+// InstrumentationFromContext retrieves the instrumentation or return an error
+func InstrumentationFromContext(ctx context.Context) (*telemetry.Instrumentation, error) {
+	if instrumentation, ok := ctx.Value(instrumentationKey).(*telemetry.Instrumentation); ok {
+		return instrumentation, nil
+	}
+	return nil, fmt.Errorf("unable to retrieve instrumentation")
+}

tests/alloydbainl/alloydb_ai_nl_integration_test.go

@@ -28,59 +28,60 @@ import (
 	"time"
 
 	"github.com/googleapis/genai-toolbox/internal/server/mcp/jsonrpc"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	ALLOYDB_AI_NL_SOURCE_KIND = "alloydb-postgres"
-	ALLOYDB_AI_NL_TOOL_KIND   = "alloydb-ai-nl"
-	ALLOYDB_AI_NL_PROJECT     = os.Getenv("ALLOYDB_AI_NL_PROJECT")
-	ALLOYDB_AI_NL_REGION      = os.Getenv("ALLOYDB_AI_NL_REGION")
-	ALLOYDB_AI_NL_CLUSTER     = os.Getenv("ALLOYDB_AI_NL_CLUSTER")
-	ALLOYDB_AI_NL_INSTANCE    = os.Getenv("ALLOYDB_AI_NL_INSTANCE")
-	ALLOYDB_AI_NL_DATABASE    = os.Getenv("ALLOYDB_AI_NL_DATABASE")
-	ALLOYDB_AI_NL_USER        = os.Getenv("ALLOYDB_AI_NL_USER")
-	ALLOYDB_AI_NL_PASS        = os.Getenv("ALLOYDB_AI_NL_PASS")
+	AlloyDBAINLSourceKind = "alloydb-postgres"
+	AlloyDBAINLToolKind   = "alloydb-ai-nl"
+	AlloyDBAINLProject    = os.Getenv("ALLOYDB_AI_NL_PROJECT")
+	AlloyDBAINLRegion     = os.Getenv("ALLOYDB_AI_NL_REGION")
+	AlloyDBAINLCluster    = os.Getenv("ALLOYDB_AI_NL_CLUSTER")
+	AlloyDBAINLInstance   = os.Getenv("ALLOYDB_AI_NL_INSTANCE")
+	AlloyDBAINLDatabase   = os.Getenv("ALLOYDB_AI_NL_DATABASE")
+	AlloyDBAINLUser       = os.Getenv("ALLOYDB_AI_NL_USER")
+	AlloyDBAINLPass       = os.Getenv("ALLOYDB_AI_NL_PASS")
 )
 
-func getAlloyDBAiNlVars(t *testing.T) map[string]any {
+func getAlloyDBAINLVars(t *testing.T) map[string]any {
 	switch "" {
-	case ALLOYDB_AI_NL_PROJECT:
+	case AlloyDBAINLProject:
 		t.Fatal("'ALLOYDB_AI_NL_PROJECT' not set")
-	case ALLOYDB_AI_NL_REGION:
+	case AlloyDBAINLRegion:
 		t.Fatal("'ALLOYDB_AI_NL_REGION' not set")
-	case ALLOYDB_AI_NL_CLUSTER:
+	case AlloyDBAINLCluster:
 		t.Fatal("'ALLOYDB_AI_NL_CLUSTER' not set")
-	case ALLOYDB_AI_NL_INSTANCE:
+	case AlloyDBAINLInstance:
 		t.Fatal("'ALLOYDB_AI_NL_INSTANCE' not set")
-	case ALLOYDB_AI_NL_DATABASE:
+	case AlloyDBAINLDatabase:
 		t.Fatal("'ALLOYDB_AI_NL_DATABASE' not set")
-	case ALLOYDB_AI_NL_USER:
+	case AlloyDBAINLUser:
 		t.Fatal("'ALLOYDB_AI_NL_USER' not set")
-	case ALLOYDB_AI_NL_PASS:
+	case AlloyDBAINLPass:
 		t.Fatal("'ALLOYDB_AI_NL_PASS' not set")
 	}
 	return map[string]any{
-		"kind":     ALLOYDB_AI_NL_SOURCE_KIND,
-		"project":  ALLOYDB_AI_NL_PROJECT,
-		"cluster":  ALLOYDB_AI_NL_CLUSTER,
-		"instance": ALLOYDB_AI_NL_INSTANCE,
-		"region":   ALLOYDB_AI_NL_REGION,
-		"database": ALLOYDB_AI_NL_DATABASE,
-		"user":     ALLOYDB_AI_NL_USER,
-		"password": ALLOYDB_AI_NL_PASS,
+		"kind":     AlloyDBAINLSourceKind,
+		"project":  AlloyDBAINLProject,
+		"cluster":  AlloyDBAINLCluster,
+		"instance": AlloyDBAINLInstance,
+		"region":   AlloyDBAINLRegion,
+		"database": AlloyDBAINLDatabase,
+		"user":     AlloyDBAINLUser,
+		"password": AlloyDBAINLPass,
 	}
 }
 
-func TestAlloyDBAiNlToolEndpoints(t *testing.T) {
-	sourceConfig := getAlloyDBAiNlVars(t)
+func TestAlloyDBAINLToolEndpoints(t *testing.T) {
+	sourceConfig := getAlloyDBAINLVars(t)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
 	defer cancel()
 
 	var args []string
 
 	// Write config into a file and pass it to command
-	toolsFile := getAiNlToolsConfig(sourceConfig)
+	toolsFile := getAINLToolsConfig(sourceConfig)
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -90,18 +91,18 @@ func TestAlloyDBAiNlToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
 	}
 
-	runAiNlToolGetTest(t)
-	runAiNlToolInvokeTest(t)
-	runAiNlMCPToolCallMethod(t)
+	runAINLToolGetTest(t)
+	runAINLToolInvokeTest(t)
+	runAINLMCPToolCallMethod(t)
 }
 
-func runAiNlToolGetTest(t *testing.T) {
+func runAINLToolGetTest(t *testing.T) {
 	// Test tool get endpoint
 	tcs := []struct {
 		name string
@@ -156,7 +157,7 @@ func runAiNlToolGetTest(t *testing.T) {
 	}
 }
 
-func runAiNlToolInvokeTest(t *testing.T) {
+func runAINLToolInvokeTest(t *testing.T) {
 	// Get ID token
 	idToken, err := tests.GetGoogleIdToken(tests.ClientId)
 	if err != nil {
@@ -276,7 +277,7 @@ func runAiNlToolInvokeTest(t *testing.T) {
 
 }
 
-func getAiNlToolsConfig(sourceConfig map[string]any) map[string]any {
+func getAINLToolsConfig(sourceConfig map[string]any) map[string]any {
 	// Write config into a file and pass it to command
 	toolsFile := map[string]any{
 		"sources": map[string]any{
@@ -290,13 +291,13 @@ func getAiNlToolsConfig(sourceConfig map[string]any) map[string]any {
 		},
 		"tools": map[string]any{
 			"my-simple-tool": map[string]any{
-				"kind":        ALLOYDB_AI_NL_TOOL_KIND,
+				"kind":        AlloyDBAINLToolKind,
 				"source":      "my-instance",
 				"description": "Simple tool to test end to end functionality.",
 				"nlConfig":    "my_nl_config",
 			},
 			"my-auth-tool": map[string]any{
-				"kind":        ALLOYDB_AI_NL_TOOL_KIND,
+				"kind":        AlloyDBAINLToolKind,
 				"source":      "my-instance",
 				"description": "Tool to test authenticated parameters.",
 				"nlConfig":    "my_nl_config",
@@ -315,7 +316,7 @@ func getAiNlToolsConfig(sourceConfig map[string]any) map[string]any {
 				},
 			},
 			"my-auth-required-tool": map[string]any{
-				"kind":        ALLOYDB_AI_NL_TOOL_KIND,
+				"kind":        AlloyDBAINLToolKind,
 				"source":      "my-instance",
 				"description": "Tool to test auth required invocation.",
 				"nlConfig":    "my_nl_config",
@@ -329,7 +330,7 @@ func getAiNlToolsConfig(sourceConfig map[string]any) map[string]any {
 	return toolsFile
 }
 
-func runAiNlMCPToolCallMethod(t *testing.T) {
+func runAINLMCPToolCallMethod(t *testing.T) {
 	sessionId := tests.RunInitialize(t, "2024-11-05")
 	header := map[string]string{}
 	if sessionId != "" {

tests/alloydbpg/alloydb_pg_integration_test.go

@@ -26,65 +26,66 @@ import (
 
 	"cloud.google.com/go/alloydbconn"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 	"github.com/jackc/pgx/v5/pgxpool"
 )
 
 var (
-	ALLOYDB_POSTGRES_SOURCE_KIND = "alloydb-postgres"
-	ALLOYDB_POSTGRES_TOOL_KIND   = "postgres-sql"
-	ALLOYDB_POSTGRES_PROJECT     = os.Getenv("ALLOYDB_POSTGRES_PROJECT")
-	ALLOYDB_POSTGRES_REGION      = os.Getenv("ALLOYDB_POSTGRES_REGION")
-	ALLOYDB_POSTGRES_CLUSTER     = os.Getenv("ALLOYDB_POSTGRES_CLUSTER")
-	ALLOYDB_POSTGRES_INSTANCE    = os.Getenv("ALLOYDB_POSTGRES_INSTANCE")
-	ALLOYDB_POSTGRES_DATABASE    = os.Getenv("ALLOYDB_POSTGRES_DATABASE")
-	ALLOYDB_POSTGRES_USER        = os.Getenv("ALLOYDB_POSTGRES_USER")
-	ALLOYDB_POSTGRES_PASS        = os.Getenv("ALLOYDB_POSTGRES_PASS")
+	AlloyDBPostgresSourceKind = "alloydb-postgres"
+	AlloyDBPostgresToolKind   = "postgres-sql"
+	AlloyDBPostgresProject    = os.Getenv("ALLOYDB_POSTGRES_PROJECT")
+	AlloyDBPostgresRegion     = os.Getenv("ALLOYDB_POSTGRES_REGION")
+	AlloyDBPostgresCluster    = os.Getenv("ALLOYDB_POSTGRES_CLUSTER")
+	AlloyDBPostgresInstance   = os.Getenv("ALLOYDB_POSTGRES_INSTANCE")
+	AlloyDBPostgresDatabase   = os.Getenv("ALLOYDB_POSTGRES_DATABASE")
+	AlloyDBPostgresUser       = os.Getenv("ALLOYDB_POSTGRES_USER")
+	AlloyDBPostgresPass       = os.Getenv("ALLOYDB_POSTGRES_PASS")
 )
 
 func getAlloyDBPgVars(t *testing.T) map[string]any {
 	switch "" {
-	case ALLOYDB_POSTGRES_PROJECT:
+	case AlloyDBPostgresProject:
 		t.Fatal("'ALLOYDB_POSTGRES_PROJECT' not set")
-	case ALLOYDB_POSTGRES_REGION:
+	case AlloyDBPostgresRegion:
 		t.Fatal("'ALLOYDB_POSTGRES_REGION' not set")
-	case ALLOYDB_POSTGRES_CLUSTER:
+	case AlloyDBPostgresCluster:
 		t.Fatal("'ALLOYDB_POSTGRES_CLUSTER' not set")
-	case ALLOYDB_POSTGRES_INSTANCE:
+	case AlloyDBPostgresInstance:
 		t.Fatal("'ALLOYDB_POSTGRES_INSTANCE' not set")
-	case ALLOYDB_POSTGRES_DATABASE:
+	case AlloyDBPostgresDatabase:
 		t.Fatal("'ALLOYDB_POSTGRES_DATABASE' not set")
-	case ALLOYDB_POSTGRES_USER:
+	case AlloyDBPostgresUser:
 		t.Fatal("'ALLOYDB_POSTGRES_USER' not set")
-	case ALLOYDB_POSTGRES_PASS:
+	case AlloyDBPostgresPass:
 		t.Fatal("'ALLOYDB_POSTGRES_PASS' not set")
 	}
 	return map[string]any{
-		"kind":     ALLOYDB_POSTGRES_SOURCE_KIND,
-		"project":  ALLOYDB_POSTGRES_PROJECT,
-		"cluster":  ALLOYDB_POSTGRES_CLUSTER,
-		"instance": ALLOYDB_POSTGRES_INSTANCE,
-		"region":   ALLOYDB_POSTGRES_REGION,
-		"database": ALLOYDB_POSTGRES_DATABASE,
-		"user":     ALLOYDB_POSTGRES_USER,
-		"password": ALLOYDB_POSTGRES_PASS,
+		"kind":     AlloyDBPostgresSourceKind,
+		"project":  AlloyDBPostgresProject,
+		"cluster":  AlloyDBPostgresCluster,
+		"instance": AlloyDBPostgresInstance,
+		"region":   AlloyDBPostgresRegion,
+		"database": AlloyDBPostgresDatabase,
+		"user":     AlloyDBPostgresUser,
+		"password": AlloyDBPostgresPass,
 	}
 }
 
 // Copied over from  alloydb_pg.go
-func getAlloyDBDialOpts(ip_type string) ([]alloydbconn.DialOption, error) {
-	switch strings.ToLower(ip_type) {
+func getAlloyDBDialOpts(ipType string) ([]alloydbconn.DialOption, error) {
+	switch strings.ToLower(ipType) {
 	case "private":
 		return []alloydbconn.DialOption{alloydbconn.WithPrivateIP()}, nil
 	case "public":
 		return []alloydbconn.DialOption{alloydbconn.WithPublicIP()}, nil
 	default:
-		return nil, fmt.Errorf("invalid ip_type %s", ip_type)
+		return nil, fmt.Errorf("invalid ipType %s", ipType)
 	}
 }
 
 // Copied over from  alloydb_pg.go
-func initAlloyDBPgConnectionPool(project, region, cluster, instance, ip_type, user, pass, dbname string) (*pgxpool.Pool, error) {
+func initAlloyDBPgConnectionPool(project, region, cluster, instance, ipType, user, pass, dbname string) (*pgxpool.Pool, error) {
 	// Configure the driver to connect to the database
 	dsn := fmt.Sprintf("user=%s password=%s dbname=%s sslmode=disable", user, pass, dbname)
 	config, err := pgxpool.ParseConfig(dsn)
@@ -93,7 +94,7 @@ func initAlloyDBPgConnectionPool(project, region, cluster, instance, ip_type, us
 	}
 
 	// Create a new dialer with options
-	dialOpts, err := getAlloyDBDialOpts(ip_type)
+	dialOpts, err := getAlloyDBDialOpts(ipType)
 	if err != nil {
 		return nil, err
 	}
@@ -123,7 +124,7 @@ func TestAlloyDBPgToolEndpoints(t *testing.T) {
 
 	var args []string
 
-	pool, err := initAlloyDBPgConnectionPool(ALLOYDB_POSTGRES_PROJECT, ALLOYDB_POSTGRES_REGION, ALLOYDB_POSTGRES_CLUSTER, ALLOYDB_POSTGRES_INSTANCE, "public", ALLOYDB_POSTGRES_USER, ALLOYDB_POSTGRES_PASS, ALLOYDB_POSTGRES_DATABASE)
+	pool, err := initAlloyDBPgConnectionPool(AlloyDBPostgresProject, AlloyDBPostgresRegion, AlloyDBPostgresCluster, AlloyDBPostgresInstance, "public", AlloyDBPostgresUser, AlloyDBPostgresPass, AlloyDBPostgresDatabase)
 	if err != nil {
 		t.Fatalf("unable to create AlloyDB connection pool: %s", err)
 	}
@@ -134,20 +135,20 @@ func TestAlloyDBPgToolEndpoints(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := tests.GetPostgresSQLParamToolInfo(tableNameParam)
-	teardownTable1 := tests.SetupPostgresSQLTable(t, ctx, pool, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := tests.GetPostgresSQLParamToolInfo(tableNameParam)
+	teardownTable1 := tests.SetupPostgresSQLTable(t, ctx, pool, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := tests.GetPostgresSQLAuthToolInfo(tableNameAuth)
-	teardownTable2 := tests.SetupPostgresSQLTable(t, ctx, pool, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := tests.GetPostgresSQLAuthToolInfo(tableNameAuth)
+	teardownTable2 := tests.SetupPostgresSQLTable(t, ctx, pool, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, ALLOYDB_POSTGRES_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, AlloyDBPostgresToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	toolsFile = tests.AddPgExecuteSqlConfig(t, toolsFile)
 	tmplSelectCombined, tmplSelectFilterCombined := tests.GetPostgresSQLTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, ALLOYDB_POSTGRES_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, AlloyDBPostgresToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -157,7 +158,7 @@ func TestAlloyDBPgToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -166,8 +167,8 @@ func TestAlloyDBPgToolEndpoints(t *testing.T) {
 	tests.RunToolGetTest(t)
 
 	select1Want, failInvocationWant, createTableStatement := tests.GetPostgresWants()
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunExecuteSqlToolInvokeTest(t, createTableStatement, select1Want)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())
@@ -193,7 +194,7 @@ func TestAlloyDBPgIpConnection(t *testing.T) {
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
 			sourceConfig["ipType"] = tc.ipType
-			err := tests.RunSourceConnectionTest(t, sourceConfig, ALLOYDB_POSTGRES_TOOL_KIND)
+			err := tests.RunSourceConnectionTest(t, sourceConfig, AlloyDBPostgresToolKind)
 			if err != nil {
 				t.Fatalf("Connection test failure: %s", err)
 			}
@@ -205,35 +206,35 @@ func TestAlloyDBPgIpConnection(t *testing.T) {
 func TestAlloyDBPgIAMConnection(t *testing.T) {
 	getAlloyDBPgVars(t)
 	// service account email used for IAM should trim the suffix
-	serviceAccountEmail := strings.TrimSuffix(tests.SERVICE_ACCOUNT_EMAIL, ".gserviceaccount.com")
+	serviceAccountEmail := strings.TrimSuffix(tests.ServiceAccountEmail, ".gserviceaccount.com")
 
 	noPassSourceConfig := map[string]any{
-		"kind":     ALLOYDB_POSTGRES_SOURCE_KIND,
-		"project":  ALLOYDB_POSTGRES_PROJECT,
-		"cluster":  ALLOYDB_POSTGRES_CLUSTER,
-		"instance": ALLOYDB_POSTGRES_INSTANCE,
-		"region":   ALLOYDB_POSTGRES_REGION,
-		"database": ALLOYDB_POSTGRES_DATABASE,
+		"kind":     AlloyDBPostgresSourceKind,
+		"project":  AlloyDBPostgresProject,
+		"cluster":  AlloyDBPostgresCluster,
+		"instance": AlloyDBPostgresInstance,
+		"region":   AlloyDBPostgresRegion,
+		"database": AlloyDBPostgresDatabase,
 		"user":     serviceAccountEmail,
 	}
 
 	noUserSourceConfig := map[string]any{
-		"kind":     ALLOYDB_POSTGRES_SOURCE_KIND,
-		"project":  ALLOYDB_POSTGRES_PROJECT,
-		"cluster":  ALLOYDB_POSTGRES_CLUSTER,
-		"instance": ALLOYDB_POSTGRES_INSTANCE,
-		"region":   ALLOYDB_POSTGRES_REGION,
-		"database": ALLOYDB_POSTGRES_DATABASE,
+		"kind":     AlloyDBPostgresSourceKind,
+		"project":  AlloyDBPostgresProject,
+		"cluster":  AlloyDBPostgresCluster,
+		"instance": AlloyDBPostgresInstance,
+		"region":   AlloyDBPostgresRegion,
+		"database": AlloyDBPostgresDatabase,
 		"password": "random",
 	}
 
 	noUserNoPassSourceConfig := map[string]any{
-		"kind":     ALLOYDB_POSTGRES_SOURCE_KIND,
-		"project":  ALLOYDB_POSTGRES_PROJECT,
-		"cluster":  ALLOYDB_POSTGRES_CLUSTER,
-		"instance": ALLOYDB_POSTGRES_INSTANCE,
-		"region":   ALLOYDB_POSTGRES_REGION,
-		"database": ALLOYDB_POSTGRES_DATABASE,
+		"kind":     AlloyDBPostgresSourceKind,
+		"project":  AlloyDBPostgresProject,
+		"cluster":  AlloyDBPostgresCluster,
+		"instance": AlloyDBPostgresInstance,
+		"region":   AlloyDBPostgresRegion,
+		"database": AlloyDBPostgresDatabase,
 	}
 	tcs := []struct {
 		name         string
@@ -258,7 +259,7 @@ func TestAlloyDBPgIAMConnection(t *testing.T) {
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
-			err := tests.RunSourceConnectionTest(t, tc.sourceConfig, ALLOYDB_POSTGRES_TOOL_KIND)
+			err := tests.RunSourceConnectionTest(t, tc.sourceConfig, AlloyDBPostgresToolKind)
 			if err != nil {
 				if tc.isErr {
 					return

tests/auth.go

@@ -23,7 +23,7 @@ import (
 	"google.golang.org/api/idtoken"
 )
 
-var SERVICE_ACCOUNT_EMAIL = os.Getenv("SERVICE_ACCOUNT_EMAIL")
+var ServiceAccountEmail = os.Getenv("SERVICE_ACCOUNT_EMAIL")
 var ClientId = os.Getenv("CLIENT_ID")
 
 // GetGoogleIdToken retrieve and return the Google ID token

tests/bigquery/bigquery_integration_test.go

@@ -29,6 +29,7 @@ import (
 
 	bigqueryapi "cloud.google.com/go/bigquery"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 	"golang.org/x/oauth2/google"
 	"google.golang.org/api/googleapi"
@@ -37,20 +38,20 @@ import (
 )
 
 var (
-	BIGQUERY_SOURCE_KIND = "bigquery"
-	BIGQUERY_TOOL_KIND   = "bigquery-sql"
-	BIGQUERY_PROJECT     = os.Getenv("BIGQUERY_PROJECT")
+	BigquerySourceKind = "bigquery"
+	BigqueryToolKind   = "bigquery-sql"
+	BigqueryProject    = os.Getenv("BIGQUERY_PROJECT")
 )
 
 func getBigQueryVars(t *testing.T) map[string]any {
 	switch "" {
-	case BIGQUERY_PROJECT:
+	case BigqueryProject:
 		t.Fatal("'BIGQUERY_PROJECT' not set")
 	}
 
 	return map[string]any{
-		"kind":    BIGQUERY_SOURCE_KIND,
-		"project": BIGQUERY_PROJECT,
+		"kind":    BigquerySourceKind,
+		"project": BigqueryProject,
 	}
 }
 
@@ -76,7 +77,7 @@ func TestBigQueryToolEndpoints(t *testing.T) {
 
 	var args []string
 
-	client, err := initBigQueryConnection(BIGQUERY_PROJECT)
+	client, err := initBigQueryConnection(BigqueryProject)
 	if err != nil {
 		t.Fatalf("unable to create Cloud SQL connection pool: %s", err)
 	}
@@ -85,36 +86,36 @@ func TestBigQueryToolEndpoints(t *testing.T) {
 	datasetName := fmt.Sprintf("temp_toolbox_test_%s", strings.ReplaceAll(uuid.New().String(), "-", ""))
 	tableName := fmt.Sprintf("param_table_%s", strings.ReplaceAll(uuid.New().String(), "-", ""))
 	tableNameParam := fmt.Sprintf("`%s.%s.%s`",
-		BIGQUERY_PROJECT,
+		BigqueryProject,
 		datasetName,
 		tableName,
 	)
 	tableNameAuth := fmt.Sprintf("`%s.%s.auth_table_%s`",
-		BIGQUERY_PROJECT,
+		BigqueryProject,
 		datasetName,
 		strings.ReplaceAll(uuid.New().String(), "-", ""),
 	)
 	tableNameTemplateParam := fmt.Sprintf("`%s.%s.template_param_table_%s`",
-		BIGQUERY_PROJECT,
+		BigqueryProject,
 		datasetName,
 		strings.ReplaceAll(uuid.New().String(), "-", ""),
 	)
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := getBigQueryParamToolInfo(tableNameParam)
-	teardownTable1 := setupBigQueryTable(t, ctx, client, create_statement1, insert_statement1, datasetName, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := getBigQueryParamToolInfo(tableNameParam)
+	teardownTable1 := setupBigQueryTable(t, ctx, client, createParamTableStmt, insertParamTableStmt, datasetName, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := getBigQueryAuthToolInfo(tableNameAuth)
-	teardownTable2 := setupBigQueryTable(t, ctx, client, create_statement2, insert_statement2, datasetName, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := getBigQueryAuthToolInfo(tableNameAuth)
+	teardownTable2 := setupBigQueryTable(t, ctx, client, createAuthTableStmt, insertAuthTableStmt, datasetName, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, BIGQUERY_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, BigqueryToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	toolsFile = addBigQueryPrebuiltToolsConfig(t, toolsFile)
 	tmplSelectCombined, tmplSelectFilterCombined := getBigQueryTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, BIGQUERY_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, BigqueryToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -124,7 +125,7 @@ func TestBigQueryToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -137,8 +138,8 @@ func TestBigQueryToolEndpoints(t *testing.T) {
 	failInvocationWant := `{"jsonrpc":"2.0","id":"invoke-fail-tool","result":{"content":[{"type":"text","text":"unable to execute query: googleapi: Error 400: Syntax error: Unexpected identifier \"SELEC\" at [1:1]`
 	datasetInfoWant := "\"Location\":\"US\",\"DefaultTableExpiration\":0,\"Labels\":null,\"Access\":"
 	tableInfoWant := "[{\"Name\":\"\",\"Location\":\"US\",\"Description\":\"\",\"Schema\":[{\"Name\":\"id\""
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	templateParamTestConfig := tests.NewTemplateParameterTestConfig(
 		tests.WithCreateColArray(`["id INT64", "name STRING", "age INT64"]`),
@@ -153,18 +154,21 @@ func TestBigQueryToolEndpoints(t *testing.T) {
 }
 
 // getBigQueryParamToolInfo returns statements and param for my-param-tool for bigquery kind
-func getBigQueryParamToolInfo(tableName string) (string, string, string, []bigqueryapi.QueryParameter) {
+func getBigQueryParamToolInfo(tableName string) (string, string, string, string, string, []bigqueryapi.QueryParameter) {
 	createStatement := fmt.Sprintf(`
 		CREATE TABLE IF NOT EXISTS %s (id INT64, name STRING);`, tableName)
 	insertStatement := fmt.Sprintf(`
-		INSERT INTO %s (id, name) VALUES (?, ?), (?, ?), (?, ?);`, tableName)
+		INSERT INTO %s (id, name) VALUES (?, ?), (?, ?), (?, ?), (?, NULL);`, tableName)
 	toolStatement := fmt.Sprintf(`SELECT * FROM %s WHERE id = ? OR name = ? ORDER BY id;`, tableName)
+	toolStatement2 := fmt.Sprintf(`SELECT * FROM %s WHERE id = ? ORDER BY id;`, tableName)
+	arrayToolStatememt := fmt.Sprintf(`SELECT * FROM %s WHERE id IN UNNEST(@idArray) AND name IN UNNEST(@nameArray) ORDER BY id;`, tableName)
 	params := []bigqueryapi.QueryParameter{
 		{Value: int64(1)}, {Value: "Alice"},
 		{Value: int64(2)}, {Value: "Jane"},
 		{Value: int64(3)}, {Value: "Sid"},
+		{Value: int64(4)},
 	}
-	return createStatement, insertStatement, toolStatement, params
+	return createStatement, insertStatement, toolStatement, toolStatement2, arrayToolStatememt, params
 }
 
 // getBigQueryAuthToolInfo returns statements and param of my-auth-tool for bigquery kind
@@ -176,7 +180,7 @@ func getBigQueryAuthToolInfo(tableName string) (string, string, string, []bigque
 	toolStatement := fmt.Sprintf(`
 		SELECT name FROM %s WHERE email = ?`, tableName)
 	params := []bigqueryapi.QueryParameter{
-		{Value: int64(1)}, {Value: "Alice"}, {Value: tests.SERVICE_ACCOUNT_EMAIL},
+		{Value: int64(1)}, {Value: "Alice"}, {Value: tests.ServiceAccountEmail},
 		{Value: int64(2)}, {Value: "Jane"}, {Value: "janedoe@gmail.com"},
 	}
 	return createStatement, insertStatement, toolStatement, params
@@ -189,7 +193,7 @@ func getBigQueryTmplToolStatement() (string, string) {
 	return tmplSelectCombined, tmplSelectFilterCombined
 }
 
-func setupBigQueryTable(t *testing.T, ctx context.Context, client *bigqueryapi.Client, create_statement, insert_statement, datasetName string, tableName string, params []bigqueryapi.QueryParameter) func(*testing.T) {
+func setupBigQueryTable(t *testing.T, ctx context.Context, client *bigqueryapi.Client, createStatement, insertStatement, datasetName string, tableName string, params []bigqueryapi.QueryParameter) func(*testing.T) {
 	// Create dataset
 	dataset := client.Dataset(datasetName)
 	_, err := dataset.Metadata(ctx)
@@ -206,7 +210,7 @@ func setupBigQueryTable(t *testing.T, ctx context.Context, client *bigqueryapi.C
 	}
 
 	// Create table
-	createJob, err := client.Query(create_statement).Run(ctx)
+	createJob, err := client.Query(createStatement).Run(ctx)
 
 	if err != nil {
 		t.Fatalf("Failed to start create table job for %s: %v", tableName, err)
@@ -220,7 +224,7 @@ func setupBigQueryTable(t *testing.T, ctx context.Context, client *bigqueryapi.C
 	}
 
 	// Insert test data
-	insertQuery := client.Query(insert_statement)
+	insertQuery := client.Query(insertStatement)
 	insertQuery.Parameters = params
 	insertJob, err := insertQuery.Run(ctx)
 	if err != nil {
@@ -340,7 +344,7 @@ func addBigQueryPrebuiltToolsConfig(t *testing.T, config map[string]any) map[str
 	return config
 }
 
-func runBigQueryExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokeParamWant, tableNameParam string) {
+func runBigQueryExecuteSqlToolInvokeTest(t *testing.T, select1Want, invokeParamWant, tableNameParam string) {
 	// Get ID token
 	idToken, err := tests.GetGoogleIdToken(tests.ClientId)
 	if err != nil {
@@ -368,7 +372,7 @@ func runBigQueryExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokePara
 			api:           "http://127.0.0.1:5000/api/tool/my-exec-sql-tool/invoke",
 			requestHeader: map[string]string{},
 			requestBody:   bytes.NewBuffer([]byte(`{"sql":"SELECT 1"}`)),
-			want:          select_1_want,
+			want:          select1Want,
 			isErr:         false,
 		},
 		{
@@ -414,7 +418,7 @@ func runBigQueryExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokePara
 			requestHeader: map[string]string{"my-google-auth_token": idToken},
 			requestBody:   bytes.NewBuffer([]byte(`{"sql":"SELECT 1"}`)),
 			isErr:         false,
-			want:          select_1_want,
+			want:          select1Want,
 		},
 		{
 			name:          "Invoke my-auth-exec-sql-tool with invalid auth token",
@@ -499,6 +503,21 @@ func runBigQueryListDatasetToolInvokeTest(t *testing.T, datasetWant string) {
 			isErr:         false,
 			want:          datasetWant,
 		},
+		{
+			name:          "invoke my-list-dataset-ids-tool with project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-list-dataset-ids-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s\"}", BigqueryProject))),
+			isErr:         false,
+			want:          datasetWant,
+		},
+		{
+			name:          "invoke my-list-dataset-ids-tool with non-existent project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-list-dataset-ids-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s-%s\"}", BigqueryProject, uuid.NewString()))),
+			isErr:         true,
+		},
 		{
 			name:          "invoke my-auth-list-dataset-ids-tool",
 			api:           "http://127.0.0.1:5000/api/tool/my-auth-list-dataset-ids-tool/invoke",
@@ -583,6 +602,21 @@ func runBigQueryGetDatasetInfoToolInvokeTest(t *testing.T, datasetName, datasetI
 			want:          datasetInfoWant,
 			isErr:         false,
 		},
+		{
+			name:          "Invoke my-auth-get-dataset-info-tool with correct project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-get-dataset-info-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s\", \"dataset\":\"%s\"}", BigqueryProject, datasetName))),
+			want:          datasetInfoWant,
+			isErr:         false,
+		},
+		{
+			name:          "Invoke my-auth-get-dataset-info-tool with non-existent project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-get-dataset-info-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s-%s\", \"dataset\":\"%s\"}", BigqueryProject, uuid.NewString(), datasetName))),
+			isErr:         true,
+		},
 		{
 			name:          "invoke my-auth-get-dataset-info-tool without body",
 			api:           "http://127.0.0.1:5000/api/tool/my-get-dataset-info-tool/invoke",
@@ -703,6 +737,21 @@ func runBigQueryListTableIdsToolInvokeTest(t *testing.T, datasetName, tablename_
 			want:          tablename_want,
 			isErr:         false,
 		},
+		{
+			name:          "Invoke my-auth-list-table-ids-tool with correct project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-list-table-ids-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s\", \"dataset\":\"%s\"}", BigqueryProject, datasetName))),
+			want:          tablename_want,
+			isErr:         false,
+		},
+		{
+			name:          "Invoke my-auth-list-table-ids-tool with non-existent project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-list-table-ids-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s-%s\", \"dataset\":\"%s\"}", BigqueryProject, uuid.NewString(), datasetName))),
+			isErr:         true,
+		},
 		{
 			name:          "Invoke my-auth-list-table-ids-tool with invalid auth token",
 			api:           "http://127.0.0.1:5000/api/tool/my-auth-list-table-ids-tool/invoke",
@@ -808,6 +857,21 @@ func runBigQueryGetTableInfoToolInvokeTest(t *testing.T, datasetName, tableName,
 			want:          tableInfoWant,
 			isErr:         false,
 		},
+		{
+			name:          "Invoke my-auth-get-table-info-tool with correct project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-get-table-info-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s\", \"dataset\":\"%s\", \"table\":\"%s\"}", BigqueryProject, datasetName, tableName))),
+			want:          tableInfoWant,
+			isErr:         false,
+		},
+		{
+			name:          "Invoke my-auth-get-table-info-tool with non-existent project",
+			api:           "http://127.0.0.1:5000/api/tool/my-auth-get-table-info-tool/invoke",
+			requestHeader: map[string]string{"my-google-auth_token": idToken},
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"project\":\"%s-%s\", \"dataset\":\"%s\", \"table\":\"%s\"}", BigqueryProject, uuid.NewString(), datasetName, tableName))),
+			isErr:         true,
+		},
 		{
 			name:          "Invoke my-auth-get-table-info-tool with invalid auth token",
 			api:           "http://127.0.0.1:5000/api/tool/my-auth-get-table-info-tool/invoke",

tests/bigtable/bigtable_integration_test.go

@@ -29,29 +29,30 @@ import (
 
 	"cloud.google.com/go/bigtable"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/internal/tools"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	BIGTABLE_SOURCE_KIND = "bigtable"
-	BIGTABLE_TOOL_KIND   = "bigtable-sql"
-	BIGTABLE_PROJECT     = os.Getenv("BIGTABLE_PROJECT")
-	BIGTABLE_INSTANCE    = os.Getenv("BIGTABLE_INSTANCE")
+	BigtableSourceKind = "bigtable"
+	BigtableToolKind   = "bigtable-sql"
+	BigtableProject    = os.Getenv("BIGTABLE_PROJECT")
+	BigtableInstance   = os.Getenv("BIGTABLE_INSTANCE")
 )
 
 func getBigtableVars(t *testing.T) map[string]any {
 	switch "" {
-	case BIGTABLE_PROJECT:
+	case BigtableProject:
 		t.Fatal("'BIGTABLE_PROJECT' not set")
-	case BIGTABLE_INSTANCE:
+	case BigtableInstance:
 		t.Fatal("'BIGTABLE_INSTANCE' not set")
 	}
 
 	return map[string]any{
-		"kind":     BIGTABLE_SOURCE_KIND,
-		"project":  BIGTABLE_PROJECT,
-		"instance": BIGTABLE_INSTANCE,
+		"kind":     BigtableSourceKind,
+		"project":  BigtableProject,
+		"instance": BigtableInstance,
 	}
 }
 
@@ -77,13 +78,18 @@ func TestBigtableToolEndpoints(t *testing.T) {
 
 	// Do not change the shape of statement without checking tests/common_test.go.
 	// The structure and value of seed data has to match https://github.com/googleapis/genai-toolbox/blob/4dba0df12dc438eca3cb476ef52aa17cdf232c12/tests/common_test.go#L200-L251
-	param_test_statement := fmt.Sprintf("SELECT TO_INT64(cf['id']) as id, CAST(cf['name'] AS string) as name, FROM %s WHERE TO_INT64(cf['id']) = @id OR CAST(cf['name'] AS string) = @name;", tableName)
+	paramTestStatement := fmt.Sprintf("SELECT TO_INT64(cf['id']) as id, CAST(cf['name'] AS string) as name, FROM %s WHERE TO_INT64(cf['id']) = @id OR CAST(cf['name'] AS string) = @name;", tableName)
+	paramTestStatement2 := fmt.Sprintf("SELECT TO_INT64(cf['id']) as id, CAST(cf['name'] AS string) as name, FROM %s WHERE TO_INT64(cf['id']) = @id;", tableName)
+	arrayTestStatement := fmt.Sprintf(
+		"SELECT TO_INT64(cf['id']) AS id, CAST(cf['name'] AS string) AS name FROM %s WHERE TO_INT64(cf['id']) IN UNNEST(@idArray) AND CAST(cf['name'] AS string) IN UNNEST(@nameArray);",
+		tableName,
+	)
 	teardownTable1 := setupBtTable(t, ctx, sourceConfig["project"].(string), sourceConfig["instance"].(string), tableName, columnFamilyName, muts, rowKeys)
 	defer teardownTable1(t)
 
 	// Do not change the shape of statement without checking tests/common_test.go.
 	// The structure and value of seed data has to match https://github.com/googleapis/genai-toolbox/blob/4dba0df12dc438eca3cb476ef52aa17cdf232c12/tests/common_test.go#L200-L251
-	auth_tool_statement := fmt.Sprintf("SELECT CAST(cf['name'] AS string) as name FROM %s WHERE CAST(cf['email'] AS string) = @email;", tableNameAuth)
+	authToolStatement := fmt.Sprintf("SELECT CAST(cf['name'] AS string) as name FROM %s WHERE CAST(cf['email'] AS string) = @email;", tableNameAuth)
 	teardownTable2 := setupBtTable(t, ctx, sourceConfig["project"].(string), sourceConfig["instance"].(string), tableNameAuth, columnFamilyName, muts, rowKeys)
 	defer teardownTable2(t)
 
@@ -92,7 +98,7 @@ func TestBigtableToolEndpoints(t *testing.T) {
 	defer teardownTableTmpl(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, BIGTABLE_TOOL_KIND, param_test_statement, auth_tool_statement)
+	toolsFile := tests.GetToolsConfig(sourceConfig, BigtableToolKind, paramTestStatement, paramTestStatement2, arrayTestStatement, authToolStatement)
 	toolsFile = addTemplateParamConfig(t, toolsFile)
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
@@ -103,7 +109,7 @@ func TestBigtableToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -114,8 +120,9 @@ func TestBigtableToolEndpoints(t *testing.T) {
 	// Actual test parameters are set in https://github.com/googleapis/genai-toolbox/blob/52b09a67cb40ac0c5f461598b4673136699a3089/tests/tool_test.go#L250
 	select1Want := "[{\"$col1\":1}]"
 	failInvocationWant := `{"jsonrpc":"2.0","id":"invoke-fail-tool","result":{"content":[{"type":"text","text":"unable to prepare statement: rpc error: code = InvalidArgument desc = Syntax error: Unexpected identifier \"SELEC\" [at 1:1]"}],"isError":true}}`
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	invokeParamWant, _, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	invokeParamWantNull := `[{"id":4,"name":""}]`
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 
 	templateParamTestConfig := tests.NewTemplateParameterTestConfig(
@@ -139,7 +146,7 @@ func getTestData(columnFamilyName string) ([]*bigtable.Mutation, []string) {
 	muts := []*bigtable.Mutation{}
 	rowKeys := []string{}
 
-	var ids [3][]byte
+	var ids [4][]byte
 	for i := range ids {
 		ids[i] = convertToBytes(i + 1)
 	}
@@ -151,7 +158,7 @@ func getTestData(columnFamilyName string) ([]*bigtable.Mutation, []string) {
 		// Expected values are defined in https://github.com/googleapis/genai-toolbox/blob/52b09a67cb40ac0c5f461598b4673136699a3089/tests/tool_test.go#L229-L310
 		"row-01": {
 			"name":  []byte("Alice"),
-			"email": []byte(tests.SERVICE_ACCOUNT_EMAIL),
+			"email": []byte(tests.ServiceAccountEmail),
 			"id":    ids[0],
 		},
 		"row-02": {
@@ -163,6 +170,10 @@ func getTestData(columnFamilyName string) ([]*bigtable.Mutation, []string) {
 			"name": []byte("Sid"),
 			"id":   ids[2],
 		},
+		"row-04": {
+			"name": nil,
+			"id":   ids[3],
+		},
 	} {
 		mut := bigtable.NewMutation()
 		for col, v := range mutData {

tests/cloudsqlmssql/cloud_sql_mssql_integration_test.go

@@ -29,53 +29,54 @@ import (
 	"cloud.google.com/go/cloudsqlconn"
 	"cloud.google.com/go/cloudsqlconn/sqlserver/mssql"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	CLOUD_SQL_MSSQL_SOURCE_KIND = "cloud-sql-mssql"
-	CLOUD_SQL_MSSQL_TOOL_KIND   = "mssql-sql"
-	CLOUD_SQL_MSSQL_PROJECT     = os.Getenv("CLOUD_SQL_MSSQL_PROJECT")
-	CLOUD_SQL_MSSQL_REGION      = os.Getenv("CLOUD_SQL_MSSQL_REGION")
-	CLOUD_SQL_MSSQL_INSTANCE    = os.Getenv("CLOUD_SQL_MSSQL_INSTANCE")
-	CLOUD_SQL_MSSQL_DATABASE    = os.Getenv("CLOUD_SQL_MSSQL_DATABASE")
-	CLOUD_SQL_MSSQL_IP          = os.Getenv("CLOUD_SQL_MSSQL_IP")
-	CLOUD_SQL_MSSQL_USER        = os.Getenv("CLOUD_SQL_MSSQL_USER")
-	CLOUD_SQL_MSSQL_PASS        = os.Getenv("CLOUD_SQL_MSSQL_PASS")
+	CloudSQLMSSQLSourceKind = "cloud-sql-mssql"
+	CloudSQLMSSQLToolKind   = "mssql-sql"
+	CloudSQLMSSQLProject    = os.Getenv("CLOUD_SQL_MSSQL_PROJECT")
+	CloudSQLMSSQLRegion     = os.Getenv("CLOUD_SQL_MSSQL_REGION")
+	CloudSQLMSSQLInstance   = os.Getenv("CLOUD_SQL_MSSQL_INSTANCE")
+	CloudSQLMSSQLDatabase   = os.Getenv("CLOUD_SQL_MSSQL_DATABASE")
+	CloudSQLMSSQLIp         = os.Getenv("CLOUD_SQL_MSSQL_IP")
+	CloudSQLMSSQLUser       = os.Getenv("CLOUD_SQL_MSSQL_USER")
+	CloudSQLMSSQLPass       = os.Getenv("CLOUD_SQL_MSSQL_PASS")
 )
 
-func getCloudSQLMssqlVars(t *testing.T) map[string]any {
+func getCloudSQLMSSQLVars(t *testing.T) map[string]any {
 	switch "" {
-	case CLOUD_SQL_MSSQL_PROJECT:
+	case CloudSQLMSSQLProject:
 		t.Fatal("'CLOUD_SQL_MSSQL_PROJECT' not set")
-	case CLOUD_SQL_MSSQL_REGION:
+	case CloudSQLMSSQLRegion:
 		t.Fatal("'CLOUD_SQL_MSSQL_REGION' not set")
-	case CLOUD_SQL_MSSQL_INSTANCE:
+	case CloudSQLMSSQLInstance:
 		t.Fatal("'CLOUD_SQL_MSSQL_INSTANCE' not set")
-	case CLOUD_SQL_MSSQL_IP:
+	case CloudSQLMSSQLIp:
 		t.Fatal("'CLOUD_SQL_MSSQL_IP' not set")
-	case CLOUD_SQL_MSSQL_DATABASE:
+	case CloudSQLMSSQLDatabase:
 		t.Fatal("'CLOUD_SQL_MSSQL_DATABASE' not set")
-	case CLOUD_SQL_MSSQL_USER:
+	case CloudSQLMSSQLUser:
 		t.Fatal("'CLOUD_SQL_MSSQL_USER' not set")
-	case CLOUD_SQL_MSSQL_PASS:
+	case CloudSQLMSSQLPass:
 		t.Fatal("'CLOUD_SQL_MSSQL_PASS' not set")
 	}
 
 	return map[string]any{
-		"kind":      CLOUD_SQL_MSSQL_SOURCE_KIND,
-		"project":   CLOUD_SQL_MSSQL_PROJECT,
-		"instance":  CLOUD_SQL_MSSQL_INSTANCE,
-		"ipAddress": CLOUD_SQL_MSSQL_IP,
-		"region":    CLOUD_SQL_MSSQL_REGION,
-		"database":  CLOUD_SQL_MSSQL_DATABASE,
-		"user":      CLOUD_SQL_MSSQL_USER,
-		"password":  CLOUD_SQL_MSSQL_PASS,
+		"kind":      CloudSQLMSSQLSourceKind,
+		"project":   CloudSQLMSSQLProject,
+		"instance":  CloudSQLMSSQLInstance,
+		"ipAddress": CloudSQLMSSQLIp,
+		"region":    CloudSQLMSSQLRegion,
+		"database":  CloudSQLMSSQLDatabase,
+		"user":      CloudSQLMSSQLUser,
+		"password":  CloudSQLMSSQLPass,
 	}
 }
 
 // Copied over from cloud_sql_mssql.go
-func initCloudSQLMssqlConnection(project, region, instance, ipAddress, ipType, user, pass, dbname string) (*sql.DB, error) {
+func initCloudSQLMSSQLConnection(project, region, instance, ipAddress, ipType, user, pass, dbname string) (*sql.DB, error) {
 	// Create dsn
 	query := fmt.Sprintf("database=%s&cloudsql=%s:%s:%s", dbname, project, region, instance)
 	url := &url.URL{
@@ -110,14 +111,14 @@ func initCloudSQLMssqlConnection(project, region, instance, ipAddress, ipType, u
 	return db, nil
 }
 
-func TestCloudSQLMssqlToolEndpoints(t *testing.T) {
-	sourceConfig := getCloudSQLMssqlVars(t)
+func TestCloudSQLMSSQLToolEndpoints(t *testing.T) {
+	sourceConfig := getCloudSQLMSSQLVars(t)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
 	defer cancel()
 
 	var args []string
 
-	db, err := initCloudSQLMssqlConnection(CLOUD_SQL_MSSQL_PROJECT, CLOUD_SQL_MSSQL_REGION, CLOUD_SQL_MSSQL_INSTANCE, CLOUD_SQL_MSSQL_IP, "public", CLOUD_SQL_MSSQL_USER, CLOUD_SQL_MSSQL_PASS, CLOUD_SQL_MSSQL_DATABASE)
+	db, err := initCloudSQLMSSQLConnection(CloudSQLMSSQLProject, CloudSQLMSSQLRegion, CloudSQLMSSQLInstance, CloudSQLMSSQLIp, "public", CloudSQLMSSQLUser, CloudSQLMSSQLPass, CloudSQLMSSQLDatabase)
 	if err != nil {
 		t.Fatalf("unable to create Cloud SQL connection pool: %s", err)
 	}
@@ -128,20 +129,20 @@ func TestCloudSQLMssqlToolEndpoints(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := tests.GetMssqlParamToolInfo(tableNameParam)
-	teardownTable1 := tests.SetupMsSQLTable(t, ctx, db, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := tests.GetMSSQLParamToolInfo(tableNameParam)
+	teardownTable1 := tests.SetupMsSQLTable(t, ctx, db, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := tests.GetMssqlAuthToolInfo(tableNameAuth)
-	teardownTable2 := tests.SetupMsSQLTable(t, ctx, db, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := tests.GetMSSQLAuthToolInfo(tableNameAuth)
+	teardownTable2 := tests.SetupMsSQLTable(t, ctx, db, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, CLOUD_SQL_MSSQL_TOOL_KIND, tool_statement1, tool_statement2)
-	toolsFile = tests.AddMssqlExecuteSqlConfig(t, toolsFile)
-	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMssqlTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, CLOUD_SQL_MSSQL_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	toolsFile := tests.GetToolsConfig(sourceConfig, CloudSQLMSSQLToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
+	toolsFile = tests.AddMSSQLExecuteSqlConfig(t, toolsFile)
+	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMSSQLTmplToolStatement()
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, CloudSQLMSSQLToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -151,7 +152,7 @@ func TestCloudSQLMssqlToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -159,17 +160,17 @@ func TestCloudSQLMssqlToolEndpoints(t *testing.T) {
 
 	tests.RunToolGetTest(t)
 
-	select1Want, failInvocationWant, createTableStatement := tests.GetMssqlWants()
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	select1Want, failInvocationWant, createTableStatement := tests.GetMSSQLWants()
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, false)
 	tests.RunExecuteSqlToolInvokeTest(t, createTableStatement, select1Want)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())
 }
 
 // Test connection with different IP type
-func TestCloudSQLMssqlIpConnection(t *testing.T) {
-	sourceConfig := getCloudSQLMssqlVars(t)
+func TestCloudSQLMSSQLIpConnection(t *testing.T) {
+	sourceConfig := getCloudSQLMSSQLVars(t)
 
 	tcs := []struct {
 		name   string
@@ -187,7 +188,7 @@ func TestCloudSQLMssqlIpConnection(t *testing.T) {
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
 			sourceConfig["ipType"] = tc.ipType
-			err := tests.RunSourceConnectionTest(t, sourceConfig, CLOUD_SQL_MSSQL_TOOL_KIND)
+			err := tests.RunSourceConnectionTest(t, sourceConfig, CloudSQLMSSQLToolKind)
 			if err != nil {
 				t.Fatalf("Connection test failure: %s", err)
 			}

tests/cloudsqlmysql/cloud_sql_mysql_integration_test.go

@@ -28,44 +28,45 @@ import (
 	"cloud.google.com/go/cloudsqlconn"
 	"cloud.google.com/go/cloudsqlconn/mysql/mysql"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	CLOUD_SQL_MYSQL_SOURCE_KIND = "cloud-sql-mysql"
-	CLOUD_SQL_MYSQL_TOOL_KIND   = "mysql-sql"
-	CLOUD_SQL_MYSQL_PROJECT     = os.Getenv("CLOUD_SQL_MYSQL_PROJECT")
-	CLOUD_SQL_MYSQL_REGION      = os.Getenv("CLOUD_SQL_MYSQL_REGION")
-	CLOUD_SQL_MYSQL_INSTANCE    = os.Getenv("CLOUD_SQL_MYSQL_INSTANCE")
-	CLOUD_SQL_MYSQL_DATABASE    = os.Getenv("CLOUD_SQL_MYSQL_DATABASE")
-	CLOUD_SQL_MYSQL_USER        = os.Getenv("CLOUD_SQL_MYSQL_USER")
-	CLOUD_SQL_MYSQL_PASS        = os.Getenv("CLOUD_SQL_MYSQL_PASS")
+	CloudSQLMySQLSourceKind = "cloud-sql-mysql"
+	CloudSQLMySQLToolKind   = "mysql-sql"
+	CloudSQLMySQLProject    = os.Getenv("CLOUD_SQL_MYSQL_PROJECT")
+	CloudSQLMySQLRegion     = os.Getenv("CLOUD_SQL_MYSQL_REGION")
+	CloudSQLMySQLInstance   = os.Getenv("CLOUD_SQL_MYSQL_INSTANCE")
+	CloudSQLMySQLDatabase   = os.Getenv("CLOUD_SQL_MYSQL_DATABASE")
+	CloudSQLMySQLUser       = os.Getenv("CLOUD_SQL_MYSQL_USER")
+	CloudSQLMySQLPass       = os.Getenv("CLOUD_SQL_MYSQL_PASS")
 )
 
 func getCloudSQLMySQLVars(t *testing.T) map[string]any {
 	switch "" {
-	case CLOUD_SQL_MYSQL_PROJECT:
+	case CloudSQLMySQLProject:
 		t.Fatal("'CLOUD_SQL_MYSQL_PROJECT' not set")
-	case CLOUD_SQL_MYSQL_REGION:
+	case CloudSQLMySQLRegion:
 		t.Fatal("'CLOUD_SQL_MYSQL_REGION' not set")
-	case CLOUD_SQL_MYSQL_INSTANCE:
+	case CloudSQLMySQLInstance:
 		t.Fatal("'CLOUD_SQL_MYSQL_INSTANCE' not set")
-	case CLOUD_SQL_MYSQL_DATABASE:
+	case CloudSQLMySQLDatabase:
 		t.Fatal("'CLOUD_SQL_MYSQL_DATABASE' not set")
-	case CLOUD_SQL_MYSQL_USER:
+	case CloudSQLMySQLUser:
 		t.Fatal("'CLOUD_SQL_MYSQL_USER' not set")
-	case CLOUD_SQL_MYSQL_PASS:
+	case CloudSQLMySQLPass:
 		t.Fatal("'CLOUD_SQL_MYSQL_PASS' not set")
 	}
 
 	return map[string]any{
-		"kind":     CLOUD_SQL_MYSQL_SOURCE_KIND,
-		"project":  CLOUD_SQL_MYSQL_PROJECT,
-		"instance": CLOUD_SQL_MYSQL_INSTANCE,
-		"region":   CLOUD_SQL_MYSQL_REGION,
-		"database": CLOUD_SQL_MYSQL_DATABASE,
-		"user":     CLOUD_SQL_MYSQL_USER,
-		"password": CLOUD_SQL_MYSQL_PASS,
+		"kind":     CloudSQLMySQLSourceKind,
+		"project":  CloudSQLMySQLProject,
+		"instance": CloudSQLMySQLInstance,
+		"region":   CloudSQLMySQLRegion,
+		"database": CloudSQLMySQLDatabase,
+		"user":     CloudSQLMySQLUser,
+		"password": CloudSQLMySQLPass,
 	}
 }
 
@@ -97,14 +98,14 @@ func initCloudSQLMySQLConnectionPool(project, region, instance, ipType, user, pa
 	return db, nil
 }
 
-func TestCloudSQLMysqlToolEndpoints(t *testing.T) {
+func TestCloudSQLMySQLToolEndpoints(t *testing.T) {
 	sourceConfig := getCloudSQLMySQLVars(t)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
 	defer cancel()
 
 	var args []string
 
-	pool, err := initCloudSQLMySQLConnectionPool(CLOUD_SQL_MYSQL_PROJECT, CLOUD_SQL_MYSQL_REGION, CLOUD_SQL_MYSQL_INSTANCE, "public", CLOUD_SQL_MYSQL_USER, CLOUD_SQL_MYSQL_PASS, CLOUD_SQL_MYSQL_DATABASE)
+	pool, err := initCloudSQLMySQLConnectionPool(CloudSQLMySQLProject, CloudSQLMySQLRegion, CloudSQLMySQLInstance, "public", CloudSQLMySQLUser, CloudSQLMySQLPass, CloudSQLMySQLDatabase)
 	if err != nil {
 		t.Fatalf("unable to create Cloud SQL connection pool: %s", err)
 	}
@@ -115,20 +116,20 @@ func TestCloudSQLMysqlToolEndpoints(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := tests.GetMysqlParamToolInfo(tableNameParam)
-	teardownTable1 := tests.SetupMySQLTable(t, ctx, pool, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := tests.GetMySQLParamToolInfo(tableNameParam)
+	teardownTable1 := tests.SetupMySQLTable(t, ctx, pool, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := tests.GetMysqlAuthToolInfo(tableNameAuth)
-	teardownTable2 := tests.SetupMySQLTable(t, ctx, pool, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := tests.GetMySQLAuthToolInfo(tableNameAuth)
+	teardownTable2 := tests.SetupMySQLTable(t, ctx, pool, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, CLOUD_SQL_MYSQL_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, CloudSQLMySQLToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	toolsFile = tests.AddMySqlExecuteSqlConfig(t, toolsFile)
-	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMysqlTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, CLOUD_SQL_MYSQL_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMySQLTmplToolStatement()
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, CloudSQLMySQLToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -138,7 +139,7 @@ func TestCloudSQLMysqlToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -146,16 +147,16 @@ func TestCloudSQLMysqlToolEndpoints(t *testing.T) {
 
 	tests.RunToolGetTest(t)
 
-	select1Want, failInvocationWant, createTableStatement := tests.GetMysqlWants()
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	select1Want, failInvocationWant, createTableStatement := tests.GetMySQLWants()
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, false)
 	tests.RunExecuteSqlToolInvokeTest(t, createTableStatement, select1Want)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())
 }
 
 // Test connection with different IP type
-func TestCloudSQLMysqlIpConnection(t *testing.T) {
+func TestCloudSQLMySQLIpConnection(t *testing.T) {
 	sourceConfig := getCloudSQLMySQLVars(t)
 
 	tcs := []struct {
@@ -174,7 +175,7 @@ func TestCloudSQLMysqlIpConnection(t *testing.T) {
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
 			sourceConfig["ipType"] = tc.ipType
-			err := tests.RunSourceConnectionTest(t, sourceConfig, CLOUD_SQL_MYSQL_TOOL_KIND)
+			err := tests.RunSourceConnectionTest(t, sourceConfig, CloudSQLMySQLToolKind)
 			if err != nil {
 				t.Fatalf("Connection test failure: %s", err)
 			}

tests/cloudsqlpg/cloud_sql_pg_integration_test.go

@@ -26,45 +26,46 @@ import (
 
 	"cloud.google.com/go/cloudsqlconn"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 	"github.com/jackc/pgx/v5/pgxpool"
 )
 
 var (
-	CLOUD_SQL_POSTGRES_SOURCE_KIND = "cloud-sql-postgres"
-	CLOUD_SQL_POSTGRES_TOOL_KIND   = "postgres-sql"
-	CLOUD_SQL_POSTGRES_PROJECT     = os.Getenv("CLOUD_SQL_POSTGRES_PROJECT")
-	CLOUD_SQL_POSTGRES_REGION      = os.Getenv("CLOUD_SQL_POSTGRES_REGION")
-	CLOUD_SQL_POSTGRES_INSTANCE    = os.Getenv("CLOUD_SQL_POSTGRES_INSTANCE")
-	CLOUD_SQL_POSTGRES_DATABASE    = os.Getenv("CLOUD_SQL_POSTGRES_DATABASE")
-	CLOUD_SQL_POSTGRES_USER        = os.Getenv("CLOUD_SQL_POSTGRES_USER")
-	CLOUD_SQL_POSTGRES_PASS        = os.Getenv("CLOUD_SQL_POSTGRES_PASS")
+	CloudSQLPostgresSourceKind = "cloud-sql-postgres"
+	CloudSQLPostgresToolKind   = "postgres-sql"
+	CloudSQLPostgresProject    = os.Getenv("CLOUD_SQL_POSTGRES_PROJECT")
+	CloudSQLPostgresRegion     = os.Getenv("CLOUD_SQL_POSTGRES_REGION")
+	CloudSQLPostgresInstance   = os.Getenv("CLOUD_SQL_POSTGRES_INSTANCE")
+	CloudSQLPostgresDatabase   = os.Getenv("CLOUD_SQL_POSTGRES_DATABASE")
+	CloudSQLPostgresUser       = os.Getenv("CLOUD_SQL_POSTGRES_USER")
+	CloudSQLPostgresPass       = os.Getenv("CLOUD_SQL_POSTGRES_PASS")
 )
 
 func getCloudSQLPgVars(t *testing.T) map[string]any {
 	switch "" {
-	case CLOUD_SQL_POSTGRES_PROJECT:
+	case CloudSQLPostgresProject:
 		t.Fatal("'CLOUD_SQL_POSTGRES_PROJECT' not set")
-	case CLOUD_SQL_POSTGRES_REGION:
+	case CloudSQLPostgresRegion:
 		t.Fatal("'CLOUD_SQL_POSTGRES_REGION' not set")
-	case CLOUD_SQL_POSTGRES_INSTANCE:
+	case CloudSQLPostgresInstance:
 		t.Fatal("'CLOUD_SQL_POSTGRES_INSTANCE' not set")
-	case CLOUD_SQL_POSTGRES_DATABASE:
+	case CloudSQLPostgresDatabase:
 		t.Fatal("'CLOUD_SQL_POSTGRES_DATABASE' not set")
-	case CLOUD_SQL_POSTGRES_USER:
+	case CloudSQLPostgresUser:
 		t.Fatal("'CLOUD_SQL_POSTGRES_USER' not set")
-	case CLOUD_SQL_POSTGRES_PASS:
+	case CloudSQLPostgresPass:
 		t.Fatal("'CLOUD_SQL_POSTGRES_PASS' not set")
 	}
 
 	return map[string]any{
-		"kind":     CLOUD_SQL_POSTGRES_SOURCE_KIND,
-		"project":  CLOUD_SQL_POSTGRES_PROJECT,
-		"instance": CLOUD_SQL_POSTGRES_INSTANCE,
-		"region":   CLOUD_SQL_POSTGRES_REGION,
-		"database": CLOUD_SQL_POSTGRES_DATABASE,
-		"user":     CLOUD_SQL_POSTGRES_USER,
-		"password": CLOUD_SQL_POSTGRES_PASS,
+		"kind":     CloudSQLPostgresSourceKind,
+		"project":  CloudSQLPostgresProject,
+		"instance": CloudSQLPostgresInstance,
+		"region":   CloudSQLPostgresRegion,
+		"database": CloudSQLPostgresDatabase,
+		"user":     CloudSQLPostgresUser,
+		"password": CloudSQLPostgresPass,
 	}
 }
 
@@ -108,7 +109,7 @@ func TestCloudSQLPgSimpleToolEndpoints(t *testing.T) {
 
 	var args []string
 
-	pool, err := initCloudSQLPgConnectionPool(CLOUD_SQL_POSTGRES_PROJECT, CLOUD_SQL_POSTGRES_REGION, CLOUD_SQL_POSTGRES_INSTANCE, "public", CLOUD_SQL_POSTGRES_USER, CLOUD_SQL_POSTGRES_PASS, CLOUD_SQL_POSTGRES_DATABASE)
+	pool, err := initCloudSQLPgConnectionPool(CloudSQLPostgresProject, CloudSQLPostgresRegion, CloudSQLPostgresInstance, "public", CloudSQLPostgresUser, CloudSQLPostgresPass, CloudSQLPostgresDatabase)
 	if err != nil {
 		t.Fatalf("unable to create Cloud SQL connection pool: %s", err)
 	}
@@ -119,20 +120,20 @@ func TestCloudSQLPgSimpleToolEndpoints(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := tests.GetPostgresSQLParamToolInfo(tableNameParam)
-	teardownTable1 := tests.SetupPostgresSQLTable(t, ctx, pool, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := tests.GetPostgresSQLParamToolInfo(tableNameParam)
+	teardownTable1 := tests.SetupPostgresSQLTable(t, ctx, pool, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := tests.GetPostgresSQLAuthToolInfo(tableNameAuth)
-	teardownTable2 := tests.SetupPostgresSQLTable(t, ctx, pool, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := tests.GetPostgresSQLAuthToolInfo(tableNameAuth)
+	teardownTable2 := tests.SetupPostgresSQLTable(t, ctx, pool, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, CLOUD_SQL_POSTGRES_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, CloudSQLPostgresToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	toolsFile = tests.AddPgExecuteSqlConfig(t, toolsFile)
 	tmplSelectCombined, tmplSelectFilterCombined := tests.GetPostgresSQLTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, CLOUD_SQL_POSTGRES_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, CloudSQLPostgresToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -142,7 +143,7 @@ func TestCloudSQLPgSimpleToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -151,8 +152,8 @@ func TestCloudSQLPgSimpleToolEndpoints(t *testing.T) {
 	tests.RunToolGetTest(t)
 
 	select1Want, failInvocationWant, createTableStatement := tests.GetPostgresWants()
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunExecuteSqlToolInvokeTest(t, createTableStatement, select1Want)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())
@@ -178,7 +179,7 @@ func TestCloudSQLPgIpConnection(t *testing.T) {
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
 			sourceConfig["ipType"] = tc.ipType
-			err := tests.RunSourceConnectionTest(t, sourceConfig, CLOUD_SQL_POSTGRES_TOOL_KIND)
+			err := tests.RunSourceConnectionTest(t, sourceConfig, CloudSQLPostgresToolKind)
 			if err != nil {
 				t.Fatalf("Connection test failure: %s", err)
 			}
@@ -189,32 +190,32 @@ func TestCloudSQLPgIpConnection(t *testing.T) {
 func TestCloudSQLPgIAMConnection(t *testing.T) {
 	getCloudSQLPgVars(t)
 	// service account email used for IAM should trim the suffix
-	serviceAccountEmail := strings.TrimSuffix(tests.SERVICE_ACCOUNT_EMAIL, ".gserviceaccount.com")
+	serviceAccountEmail := strings.TrimSuffix(tests.ServiceAccountEmail, ".gserviceaccount.com")
 
 	noPassSourceConfig := map[string]any{
-		"kind":     CLOUD_SQL_POSTGRES_SOURCE_KIND,
-		"project":  CLOUD_SQL_POSTGRES_PROJECT,
-		"instance": CLOUD_SQL_POSTGRES_INSTANCE,
-		"region":   CLOUD_SQL_POSTGRES_REGION,
-		"database": CLOUD_SQL_POSTGRES_DATABASE,
+		"kind":     CloudSQLPostgresSourceKind,
+		"project":  CloudSQLPostgresProject,
+		"instance": CloudSQLPostgresInstance,
+		"region":   CloudSQLPostgresRegion,
+		"database": CloudSQLPostgresDatabase,
 		"user":     serviceAccountEmail,
 	}
 
 	noUserSourceConfig := map[string]any{
-		"kind":     CLOUD_SQL_POSTGRES_SOURCE_KIND,
-		"project":  CLOUD_SQL_POSTGRES_PROJECT,
-		"instance": CLOUD_SQL_POSTGRES_INSTANCE,
-		"region":   CLOUD_SQL_POSTGRES_REGION,
-		"database": CLOUD_SQL_POSTGRES_DATABASE,
+		"kind":     CloudSQLPostgresSourceKind,
+		"project":  CloudSQLPostgresProject,
+		"instance": CloudSQLPostgresInstance,
+		"region":   CloudSQLPostgresRegion,
+		"database": CloudSQLPostgresDatabase,
 		"password": "random",
 	}
 
 	noUserNoPassSourceConfig := map[string]any{
-		"kind":     CLOUD_SQL_POSTGRES_SOURCE_KIND,
-		"project":  CLOUD_SQL_POSTGRES_PROJECT,
-		"instance": CLOUD_SQL_POSTGRES_INSTANCE,
-		"region":   CLOUD_SQL_POSTGRES_REGION,
-		"database": CLOUD_SQL_POSTGRES_DATABASE,
+		"kind":     CloudSQLPostgresSourceKind,
+		"project":  CloudSQLPostgresProject,
+		"instance": CloudSQLPostgresInstance,
+		"region":   CloudSQLPostgresRegion,
+		"database": CloudSQLPostgresDatabase,
 	}
 	tcs := []struct {
 		name         string
@@ -239,7 +240,7 @@ func TestCloudSQLPgIAMConnection(t *testing.T) {
 	}
 	for _, tc := range tcs {
 		t.Run(tc.name, func(t *testing.T) {
-			err := tests.RunSourceConnectionTest(t, tc.sourceConfig, CLOUD_SQL_POSTGRES_TOOL_KIND)
+			err := tests.RunSourceConnectionTest(t, tc.sourceConfig, CloudSQLPostgresToolKind)
 			if err != nil {
 				if tc.isErr {
 					return

tests/common.go

@@ -28,7 +28,7 @@ import (
 )
 
 // GetToolsConfig returns a mock tools config file
-func GetToolsConfig(sourceConfig map[string]any, toolKind, param_tool_statement, auth_tool_statement string) map[string]any {
+func GetToolsConfig(sourceConfig map[string]any, toolKind, paramToolStatement, paramToolStatement2, arrayToolStatement, authToolStatement string) map[string]any {
 	// Write config into a file and pass it to command
 	toolsFile := map[string]any{
 		"sources": map[string]any{
@@ -51,7 +51,7 @@ func GetToolsConfig(sourceConfig map[string]any, toolKind, param_tool_statement,
 				"kind":        toolKind,
 				"source":      "my-instance",
 				"description": "Tool to test invocation with params.",
-				"statement":   param_tool_statement,
+				"statement":   paramToolStatement,
 				"parameters": []any{
 					map[string]any{
 						"name":        "id",
@@ -65,12 +65,53 @@ func GetToolsConfig(sourceConfig map[string]any, toolKind, param_tool_statement,
 					},
 				},
 			},
+			"my-param-tool2": map[string]any{
+				"kind":        toolKind,
+				"source":      "my-instance",
+				"description": "Tool to test invocation with params.",
+				"statement":   paramToolStatement2,
+				"parameters": []any{
+					map[string]any{
+						"name":        "id",
+						"type":        "integer",
+						"description": "user ID",
+					},
+				},
+			},
+			"my-array-tool": map[string]any{
+				"kind":        toolKind,
+				"source":      "my-instance",
+				"description": "Tool to test invocation with array params.",
+				"statement":   arrayToolStatement,
+				"parameters": []any{
+					map[string]any{
+						"name":        "idArray",
+						"type":        "array",
+						"description": "ID array",
+						"items": map[string]any{
+							"name":        "id",
+							"type":        "integer",
+							"description": "ID",
+						},
+					},
+					map[string]any{
+						"name":        "nameArray",
+						"type":        "array",
+						"description": "user name array",
+						"items": map[string]any{
+							"name":        "name",
+							"type":        "string",
+							"description": "user name",
+						},
+					},
+				},
+			},
 			"my-auth-tool": map[string]any{
 				"kind":        toolKind,
 				"source":      "my-instance",
 				"description": "Tool to test authenticated parameters.",
 				// statement to auto-fill authenticated parameter
-				"statement": auth_tool_statement,
+				"statement": authToolStatement,
 				"parameters": []map[string]any{
 					{
 						"name":        "email",
@@ -237,8 +278,8 @@ func AddMySqlExecuteSqlConfig(t *testing.T, config map[string]any) map[string]an
 	return config
 }
 
-// AddMssqlExecuteSqlConfig gets the tools config for `mssql-execute-sql`
-func AddMssqlExecuteSqlConfig(t *testing.T, config map[string]any) map[string]any {
+// AddMSSQLExecuteSqlConfig gets the tools config for `mssql-execute-sql`
+func AddMSSQLExecuteSqlConfig(t *testing.T, config map[string]any) map[string]any {
 	tools, ok := config["tools"].(map[string]any)
 	if !ok {
 		t.Fatalf("unable to get tools from config")
@@ -261,21 +302,23 @@ func AddMssqlExecuteSqlConfig(t *testing.T, config map[string]any) map[string]an
 }
 
 // GetPostgresSQLParamToolInfo returns statements and param for my-param-tool postgres-sql kind
-func GetPostgresSQLParamToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id SERIAL PRIMARY KEY, name TEXT);", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name) VALUES ($1), ($2), ($3);", tableName)
-	tool_statement := fmt.Sprintf("SELECT * FROM %s WHERE id = $1 OR name = $2;", tableName)
-	params := []any{"Alice", "Jane", "Sid"}
-	return create_statement, insert_statement, tool_statement, params
+func GetPostgresSQLParamToolInfo(tableName string) (string, string, string, string, string, []any) {
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id SERIAL PRIMARY KEY, name TEXT);", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name) VALUES ($1), ($2), ($3), ($4);", tableName)
+	toolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = $1 OR name = $2;", tableName)
+	toolStatement2 := fmt.Sprintf("SELECT * FROM %s WHERE id = $1;", tableName)
+	arrayToolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = ANY($1) AND name = ANY($2);", tableName)
+	params := []any{"Alice", "Jane", "Sid", nil}
+	return createStatement, insertStatement, toolStatement, toolStatement2, arrayToolStatement, params
 }
 
 // GetPostgresSQLAuthToolInfo returns statements and param of my-auth-tool for postgres-sql kind
 func GetPostgresSQLAuthToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id SERIAL PRIMARY KEY, name TEXT, email TEXT);", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES ($1, $2), ($3, $4)", tableName)
-	tool_statement := fmt.Sprintf("SELECT name FROM %s WHERE email = $1;", tableName)
-	params := []any{"Alice", SERVICE_ACCOUNT_EMAIL, "Jane", "janedoe@gmail.com"}
-	return create_statement, insert_statement, tool_statement, params
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id SERIAL PRIMARY KEY, name TEXT, email TEXT);", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES ($1, $2), ($3, $4)", tableName)
+	toolStatement := fmt.Sprintf("SELECT name FROM %s WHERE email = $1;", tableName)
+	params := []any{"Alice", ServiceAccountEmail, "Jane", "janedoe@gmail.com"}
+	return createStatement, insertStatement, toolStatement, params
 }
 
 // GetPostgresSQLTmplToolStatement returns statements and param for template parameter test cases for postgres-sql kind
@@ -285,60 +328,65 @@ func GetPostgresSQLTmplToolStatement() (string, string) {
 	return tmplSelectCombined, tmplSelectFilterCombined
 }
 
-// GetMssqlParamToolInfo returns statements and param for my-param-tool mssql-sql kind
-func GetMssqlParamToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id INT IDENTITY(1,1) PRIMARY KEY, name VARCHAR(255));", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name) VALUES (@alice), (@jane), (@sid);", tableName)
-	tool_statement := fmt.Sprintf("SELECT * FROM %s WHERE id = @id OR name = @p2;", tableName)
-	params := []any{sql.Named("alice", "Alice"), sql.Named("jane", "Jane"), sql.Named("sid", "Sid")}
-	return create_statement, insert_statement, tool_statement, params
+// GetMSSQLParamToolInfo returns statements and param for my-param-tool mssql-sql kind
+func GetMSSQLParamToolInfo(tableName string) (string, string, string, string, string, []any) {
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id INT IDENTITY(1,1) PRIMARY KEY, name VARCHAR(255));", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name) VALUES (@alice), (@jane), (@sid), (@nil);", tableName)
+	toolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = @id OR name = @p2;", tableName)
+	toolStatement2 := fmt.Sprintf("SELECT * FROM %s WHERE id = @id;", tableName)
+	arrayToolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = ANY(@idArray) OR name = ANY(@p2);", tableName)
+	params := []any{sql.Named("alice", "Alice"), sql.Named("jane", "Jane"), sql.Named("sid", "Sid"), sql.Named("nil", nil)}
+	return createStatement, insertStatement, toolStatement, toolStatement2, arrayToolStatement, params
 }
 
-// GetMssqlAuthToolInfo returns statements and param of my-auth-tool for mssql-sql kind
-func GetMssqlAuthToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id INT IDENTITY(1,1) PRIMARY KEY, name VARCHAR(255), email VARCHAR(255));", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES (@alice, @aliceemail), (@jane, @janeemail);", tableName)
-	tool_statement := fmt.Sprintf("SELECT name FROM %s WHERE email = @email;", tableName)
-	params := []any{sql.Named("alice", "Alice"), sql.Named("aliceemail", SERVICE_ACCOUNT_EMAIL), sql.Named("jane", "Jane"), sql.Named("janeemail", "janedoe@gmail.com")}
-	return create_statement, insert_statement, tool_statement, params
+// GetMSSQLAuthToolInfo returns statements and param of my-auth-tool for mssql-sql kind
+func GetMSSQLAuthToolInfo(tableName string) (string, string, string, []any) {
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id INT IDENTITY(1,1) PRIMARY KEY, name VARCHAR(255), email VARCHAR(255));", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES (@alice, @aliceemail), (@jane, @janeemail);", tableName)
+	toolStatement := fmt.Sprintf("SELECT name FROM %s WHERE email = @email;", tableName)
+	params := []any{sql.Named("alice", "Alice"), sql.Named("aliceemail", ServiceAccountEmail), sql.Named("jane", "Jane"), sql.Named("janeemail", "janedoe@gmail.com")}
+	return createStatement, insertStatement, toolStatement, params
 }
 
-// GetMssqlTmplToolStatement returns statements and param for template parameter test cases for mysql-sql kind
-func GetMssqlTmplToolStatement() (string, string) {
+// GetMSSQLTmplToolStatement returns statements and param for template parameter test cases for mysql-sql kind
+func GetMSSQLTmplToolStatement() (string, string) {
 	tmplSelectCombined := "SELECT * FROM {{.tableName}} WHERE id = @id"
 	tmplSelectFilterCombined := "SELECT * FROM {{.tableName}} WHERE {{.columnFilter}} = @name"
 	return tmplSelectCombined, tmplSelectFilterCombined
 }
 
-// GetMysqlParamToolInfo returns statements and param for my-param-tool mysql-sql kind
-func GetMysqlParamToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255));", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name) VALUES (?), (?), (?);", tableName)
-	tool_statement := fmt.Sprintf("SELECT * FROM %s WHERE id = ? OR name = ?;", tableName)
-	params := []any{"Alice", "Jane", "Sid"}
-	return create_statement, insert_statement, tool_statement, params
+// GetMySQLParamToolInfo returns statements and param for my-param-tool mysql-sql kind
+func GetMySQLParamToolInfo(tableName string) (string, string, string, string, string, []any) {
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255));", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name) VALUES (?), (?), (?), (?);", tableName)
+	toolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = ? OR name = ?;", tableName)
+	toolStatement2 := fmt.Sprintf("SELECT * FROM %s WHERE id = ?;", tableName)
+	arrayToolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = ANY(?) AND name = ANY(?);", tableName)
+	params := []any{"Alice", "Jane", "Sid", nil}
+	return createStatement, insertStatement, toolStatement, toolStatement2, arrayToolStatement, params
 }
 
-// GetMysqlAuthToolInfo returns statements and param of my-auth-tool for mysql-sql kind
-func GetMysqlAuthToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255), email VARCHAR(255));", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES (?, ?), (?, ?)", tableName)
-	tool_statement := fmt.Sprintf("SELECT name FROM %s WHERE email = ?;", tableName)
-	params := []any{"Alice", SERVICE_ACCOUNT_EMAIL, "Jane", "janedoe@gmail.com"}
-	return create_statement, insert_statement, tool_statement, params
+// GetMySQLAuthToolInfo returns statements and param of my-auth-tool for mysql-sql kind
+func GetMySQLAuthToolInfo(tableName string) (string, string, string, []any) {
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255), email VARCHAR(255));", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES (?, ?), (?, ?)", tableName)
+	toolStatement := fmt.Sprintf("SELECT name FROM %s WHERE email = ?;", tableName)
+	params := []any{"Alice", ServiceAccountEmail, "Jane", "janedoe@gmail.com"}
+	return createStatement, insertStatement, toolStatement, params
 }
 
-// GetMysqlTmplToolStatement returns statements and param for template parameter test cases for mysql-sql kind
-func GetMysqlTmplToolStatement() (string, string) {
+// GetMySQLTmplToolStatement returns statements and param for template parameter test cases for mysql-sql kind
+func GetMySQLTmplToolStatement() (string, string) {
 	tmplSelectCombined := "SELECT * FROM {{.tableName}} WHERE id = ?"
 	tmplSelectFilterCombined := "SELECT * FROM {{.tableName}} WHERE {{.columnFilter}} = ?"
 	return tmplSelectCombined, tmplSelectFilterCombined
 }
 
-func GetNonSpannerInvokeParamWant() (string, string) {
+func GetNonSpannerInvokeParamWant() (string, string, string) {
 	invokeParamWant := "[{\"id\":1,\"name\":\"Alice\"},{\"id\":3,\"name\":\"Sid\"}]"
+	invokeParamWantNull := "[{\"id\":4,\"name\":null}]"
 	mcpInvokeParamWant := `{"jsonrpc":"2.0","id":"my-param-tool","result":{"content":[{"type":"text","text":"{\"id\":1,\"name\":\"Alice\"}"},{"type":"text","text":"{\"id\":3,\"name\":\"Sid\"}"}]}}`
-	return invokeParamWant, mcpInvokeParamWant
+	return invokeParamWant, invokeParamWantNull, mcpInvokeParamWant
 }
 
 // GetPostgresWants return the expected wants for postgres
@@ -349,16 +397,16 @@ func GetPostgresWants() (string, string, string) {
 	return select1Want, failInvocationWant, createTableStatement
 }
 
-// GetMssqlWants return the expected wants for mssql
-func GetMssqlWants() (string, string, string) {
+// GetMSSQLWants return the expected wants for mssql
+func GetMSSQLWants() (string, string, string) {
 	select1Want := "[{\"\":1}]"
 	failInvocationWant := `{"jsonrpc":"2.0","id":"invoke-fail-tool","result":{"content":[{"type":"text","text":"unable to execute query: mssql: Could not find stored procedure 'SELEC'."}],"isError":true}}`
 	createTableStatement := `"CREATE TABLE t (id INT IDENTITY(1,1) PRIMARY KEY, name NVARCHAR(MAX))"`
 	return select1Want, failInvocationWant, createTableStatement
 }
 
-// GetMysqlWants return the expected wants for mysql
-func GetMysqlWants() (string, string, string) {
+// GetMySQLWants return the expected wants for mysql
+func GetMySQLWants() (string, string, string) {
 	select1Want := "[{\"1\":1}]"
 	failInvocationWant := `{"jsonrpc":"2.0","id":"invoke-fail-tool","result":{"content":[{"type":"text","text":"unable to execute query: Error 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELEC 1' at line 1"}],"isError":true}}`
 	createTableStatement := `"CREATE TABLE t (id SERIAL PRIMARY KEY, name TEXT)"`
@@ -367,20 +415,20 @@ func GetMysqlWants() (string, string, string) {
 
 // SetupPostgresSQLTable creates and inserts data into a table of tool
 // compatible with postgres-sql tool
-func SetupPostgresSQLTable(t *testing.T, ctx context.Context, pool *pgxpool.Pool, create_statement, insert_statement, tableName string, params []any) func(*testing.T) {
+func SetupPostgresSQLTable(t *testing.T, ctx context.Context, pool *pgxpool.Pool, createStatement, insertStatement, tableName string, params []any) func(*testing.T) {
 	err := pool.Ping(ctx)
 	if err != nil {
 		t.Fatalf("unable to connect to test database: %s", err)
 	}
 
 	// Create table
-	_, err = pool.Query(ctx, create_statement)
+	_, err = pool.Query(ctx, createStatement)
 	if err != nil {
 		t.Fatalf("unable to create test table %s: %s", tableName, err)
 	}
 
 	// Insert test data
-	_, err = pool.Query(ctx, insert_statement, params...)
+	_, err = pool.Query(ctx, insertStatement, params...)
 	if err != nil {
 		t.Fatalf("unable to insert test data: %s", err)
 	}
@@ -396,20 +444,20 @@ func SetupPostgresSQLTable(t *testing.T, ctx context.Context, pool *pgxpool.Pool
 
 // SetupMsSQLTable creates and inserts data into a table of tool
 // compatible with mssql-sql tool
-func SetupMsSQLTable(t *testing.T, ctx context.Context, pool *sql.DB, create_statement, insert_statement, tableName string, params []any) func(*testing.T) {
+func SetupMsSQLTable(t *testing.T, ctx context.Context, pool *sql.DB, createStatement, insertStatement, tableName string, params []any) func(*testing.T) {
 	err := pool.PingContext(ctx)
 	if err != nil {
 		t.Fatalf("unable to connect to test database: %s", err)
 	}
 
 	// Create table
-	_, err = pool.QueryContext(ctx, create_statement)
+	_, err = pool.QueryContext(ctx, createStatement)
 	if err != nil {
 		t.Fatalf("unable to create test table %s: %s", tableName, err)
 	}
 
 	// Insert test data
-	_, err = pool.QueryContext(ctx, insert_statement, params...)
+	_, err = pool.QueryContext(ctx, insertStatement, params...)
 	if err != nil {
 		t.Fatalf("unable to insert test data: %s", err)
 	}
@@ -425,20 +473,20 @@ func SetupMsSQLTable(t *testing.T, ctx context.Context, pool *sql.DB, create_sta
 
 // SetupMySQLTable creates and inserts data into a table of tool
 // compatible with mysql-sql tool
-func SetupMySQLTable(t *testing.T, ctx context.Context, pool *sql.DB, create_statement, insert_statement, tableName string, params []any) func(*testing.T) {
+func SetupMySQLTable(t *testing.T, ctx context.Context, pool *sql.DB, createStatement, insertStatement, tableName string, params []any) func(*testing.T) {
 	err := pool.PingContext(ctx)
 	if err != nil {
 		t.Fatalf("unable to connect to test database: %s", err)
 	}
 
 	// Create table
-	_, err = pool.QueryContext(ctx, create_statement)
+	_, err = pool.QueryContext(ctx, createStatement)
 	if err != nil {
 		t.Fatalf("unable to create test table %s: %s", tableName, err)
 	}
 
 	// Insert test data
-	_, err = pool.QueryContext(ctx, insert_statement, params...)
+	_, err = pool.QueryContext(ctx, insertStatement, params...)
 	if err != nil {
 		t.Fatalf("unable to insert test data: %s", err)
 	}
@@ -453,12 +501,13 @@ func SetupMySQLTable(t *testing.T, ctx context.Context, pool *sql.DB, create_sta
 }
 
 // GetRedisWants return the expected wants for redis
-func GetRedisValkeyWants() (string, string, string, string) {
+func GetRedisValkeyWants() (string, string, string, string, string) {
 	select1Want := "[\"PONG\"]"
 	failInvocationWant := `unknown command 'SELEC 1;', with args beginning with: \""}]}}`
 	invokeParamWant := "[{\"id\":\"1\",\"name\":\"Alice\"},{\"id\":\"3\",\"name\":\"Sid\"}]"
+	invokeParamWantNull := `[{"id":"4","name":""}]`
 	mcpInvokeParamWant := `{"jsonrpc":"2.0","id":"my-param-tool","result":{"content":[{"type":"text","text":"{\"id\":\"1\",\"name\":\"Alice\"}"},{"type":"text","text":"{\"id\":\"3\",\"name\":\"Sid\"}"}]}}`
-	return select1Want, failInvocationWant, invokeParamWant, mcpInvokeParamWant
+	return select1Want, failInvocationWant, invokeParamWant, invokeParamWantNull, mcpInvokeParamWant
 }
 
 func GetRedisValkeyToolsConfig(sourceConfig map[string]any, toolKind string) map[string]any {
@@ -497,6 +546,37 @@ func GetRedisValkeyToolsConfig(sourceConfig map[string]any, toolKind string) map
 					},
 				},
 			},
+			"my-param-tool2": map[string]any{
+				"kind":        toolKind,
+				"source":      "my-instance",
+				"description": "Tool to test invocation with params.",
+				"commands":    [][]string{{"HGETALL", "row4"}},
+				"parameters": []any{
+					map[string]any{
+						"name":        "id",
+						"type":        "integer",
+						"description": "user ID",
+					},
+				},
+			},
+			"my-array-tool": map[string]any{
+				"kind":        toolKind,
+				"source":      "my-instance",
+				"description": "Tool to test invocation with array params.",
+				"commands":    [][]string{{"HGETALL", "row1"}, {"$cmdArray"}},
+				"parameters": []any{
+					map[string]any{
+						"name":        "cmdArray",
+						"type":        "array",
+						"description": "cmd array",
+						"items": map[string]any{
+							"name":        "cmd",
+							"type":        "string",
+							"description": "field",
+						},
+					},
+				},
+			},
 			"my-auth-tool": map[string]any{
 				"kind":        toolKind,
 				"source":      "my-instance",
@@ -534,7 +614,5 @@ func GetRedisValkeyToolsConfig(sourceConfig map[string]any, toolKind string) map
 			},
 		},
 	}
-
 	return toolsFile
-
 }

tests/couchbase/couchbase_integration_test.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package tests
+package couchbase
 
 import (
 	"context"
@@ -25,6 +25,7 @@ import (
 
 	"github.com/couchbase/gocb/v2"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
@@ -34,12 +35,11 @@ const (
 )
 
 var (
-	couchbaseConnection   = os.Getenv("COUCHBASE_CONNECTION")
-	couchbaseBucket       = os.Getenv("COUCHBASE_BUCKET")
-	couchbaseScope        = os.Getenv("COUCHBASE_SCOPE")
-	couchbaseUser         = os.Getenv("COUCHBASE_USER")
-	couchbasePass         = os.Getenv("COUCHBASE_PASS")
-	SERVICE_ACCOUNT_EMAIL = os.Getenv("SERVICE_ACCOUNT_EMAIL")
+	couchbaseConnection = os.Getenv("COUCHBASE_CONNECTION")
+	couchbaseBucket     = os.Getenv("COUCHBASE_BUCKET")
+	couchbaseScope      = os.Getenv("COUCHBASE_SCOPE")
+	couchbaseUser       = os.Getenv("COUCHBASE_USER")
+	couchbasePass       = os.Getenv("COUCHBASE_PASS")
 )
 
 // getCouchbaseVars validates and returns Couchbase configuration variables
@@ -103,13 +103,13 @@ func TestCouchbaseToolEndpoints(t *testing.T) {
 	collectionNameTemplateParam := "template_param_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// Set up data for param tool
-	paramToolStatement, params1 := getCouchbaseParamToolInfo(collectionNameParam)
-	teardownCollection1 := setupCouchbaseCollection(t, ctx, cluster, couchbaseBucket, couchbaseScope, collectionNameParam, params1)
+	paramToolStatement, paramToolStmt2, arrayToolStatement, paramTestParams := getCouchbaseParamToolInfo(collectionNameParam)
+	teardownCollection1 := setupCouchbaseCollection(t, ctx, cluster, couchbaseBucket, couchbaseScope, collectionNameParam, paramTestParams)
 	defer teardownCollection1(t)
 
 	// Set up data for auth tool
-	authToolStatement, params2 := getCouchbaseAuthToolInfo(collectionNameAuth)
-	teardownCollection2 := setupCouchbaseCollection(t, ctx, cluster, couchbaseBucket, couchbaseScope, collectionNameAuth, params2)
+	authToolStatement, authTestParams := getCouchbaseAuthToolInfo(collectionNameAuth)
+	teardownCollection2 := setupCouchbaseCollection(t, ctx, cluster, couchbaseBucket, couchbaseScope, collectionNameAuth, authTestParams)
 	defer teardownCollection2(t)
 
 	// Setup up table for template param tool
@@ -118,7 +118,7 @@ func TestCouchbaseToolEndpoints(t *testing.T) {
 	defer teardownCollection3(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, couchbaseToolKind, paramToolStatement, authToolStatement)
+	toolsFile := tests.GetToolsConfig(sourceConfig, couchbaseToolKind, paramToolStatement, paramToolStmt2, arrayToolStatement, authToolStatement)
 	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, couchbaseToolKind, tmplSelectCombined, tmplSelectFilterCombined, tmplSelectAll)
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
@@ -129,7 +129,7 @@ func TestCouchbaseToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -140,8 +140,8 @@ func TestCouchbaseToolEndpoints(t *testing.T) {
 	select1Want := "[{\"$1\":1}]"
 	failMcpInvocationWant := "{\"jsonrpc\":\"2.0\",\"id\":\"invoke-fail-tool\",\"result\":{\"content\":[{\"type\":\"text\",\"text\":\"unable to execute query: parsing failure | {\\\"statement\\\":\\\"SELEC 1;\\\""
 
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failMcpInvocationWant)
 
 	templateParamTestConfig := tests.NewTemplateParameterTestConfig(
@@ -231,18 +231,26 @@ func setupCouchbaseCollection(t *testing.T, ctx context.Context, cluster *gocb.C
 }
 
 // getCouchbaseParamToolInfo returns statements and params for my-param-tool couchbase-sql kind
-func getCouchbaseParamToolInfo(collectionName string) (string, []map[string]any) {
+func getCouchbaseParamToolInfo(collectionName string) (string, string, string, []map[string]any) {
 	// N1QL uses positional or named parameters with $ prefix
 	toolStatement := fmt.Sprintf("SELECT TONUMBER(meta().id) as id, "+
 		"%s.* FROM %s WHERE meta().id = TOSTRING($id) OR name = $name order by meta().id",
 		collectionName, collectionName)
 
+	toolStatement2 := fmt.Sprintf("SELECT TONUMBER(meta().id) as id, "+
+		"%s.* FROM %s WHERE meta().id = TOSTRING($id) order by meta().id",
+		collectionName, collectionName)
+
+	arrayToolStatemnt := fmt.Sprintf("SELECT TONUMBER(meta().id) as id, "+
+		"%s.* FROM %s WHERE TONUMBER(meta().id) IN $idArray AND name IN $nameArray order by meta().id", collectionName, collectionName)
+
 	params := []map[string]any{
 		{"name": "Alice"},
 		{"name": "Jane"},
 		{"name": "Sid"},
+		{"name": nil},
 	}
-	return toolStatement, params
+	return toolStatement, toolStatement2, arrayToolStatemnt, params
 }
 
 // getCouchbaseAuthToolInfo returns statements and param of my-auth-tool for couchbase-sql kind
@@ -250,7 +258,7 @@ func getCouchbaseAuthToolInfo(collectionName string) (string, []map[string]any)
 	toolStatement := fmt.Sprintf("SELECT name FROM %s WHERE email = $email", collectionName)
 
 	params := []map[string]any{
-		{"name": "Alice", "email": SERVICE_ACCOUNT_EMAIL},
+		{"name": "Alice", "email": tests.ServiceAccountEmail},
 		{"name": "Jane", "email": "janedoe@gmail.com"},
 	}
 	return toolStatement, params

tests/dgraph/dgraph_integration_test.go

@@ -26,24 +26,24 @@ import (
 	"testing"
 	"time"
 
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	DGRAPH_SOURCE_KIND = "dgraph"
-	DGRAPH_TOOL_KIND   = "dgraph-dql"
-	DGRAPH_API_KEY     = "api-key"
-	DGRAPH_URL         = os.Getenv("DGRAPH_URL")
+	DgraphSourceKind = "dgraph"
+	DgraphApiKey     = "api-key"
+	DgraphUrl        = os.Getenv("DGRAPH_URL")
 )
 
 func getDgraphVars(t *testing.T) map[string]any {
-	if DGRAPH_URL == "" {
+	if DgraphUrl == "" {
 		t.Fatal("'DGRAPH_URL' not set")
 	}
 	return map[string]any{
-		"kind":      DGRAPH_SOURCE_KIND,
-		"dgraphUrl": DGRAPH_URL,
-		"apiKey":    DGRAPH_API_KEY,
+		"kind":      DgraphSourceKind,
+		"dgraphUrl": DgraphUrl,
+		"apiKey":    DgraphApiKey,
 	}
 }
 
@@ -79,7 +79,7 @@ func TestDgraphToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)

tests/http/http_integration_test.go

@@ -28,13 +28,14 @@ import (
 	"testing"
 	"time"
 
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/internal/tools"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	HTTP_SOURCE_KIND = "http"
-	HTTP_TOOL_KIND   = "http"
+	HttpSourceKind = "http"
+	HttpToolKind   = "http"
 )
 
 func getHTTPSourceConfig(t *testing.T) map[string]any {
@@ -44,7 +45,7 @@ func getHTTPSourceConfig(t *testing.T) map[string]any {
 	}
 	idToken = "Bearer " + idToken
 	return map[string]any{
-		"kind":    HTTP_SOURCE_KIND,
+		"kind":    HttpSourceKind,
 		"headers": map[string]string{"Authorization": idToken},
 	}
 }
@@ -59,6 +60,8 @@ func multiTool(w http.ResponseWriter, r *http.Request) {
 		handleTool0(w, r)
 	case "tool1":
 		handleTool1(w, r)
+	case "tool1a":
+		handleTool1a(w, r)
 	case "tool2":
 		handleTool2(w, r)
 	case "tool3":
@@ -130,6 +133,27 @@ func handleTool1(w http.ResponseWriter, r *http.Request) {
 	http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
 }
 
+// handler function for the test server
+func handleTool1a(w http.ResponseWriter, r *http.Request) {
+	// expect GET method
+	if r.Method != http.MethodGet {
+		errorMessage := fmt.Sprintf("expected GET method but got: %s", string(r.Method))
+		http.Error(w, errorMessage, http.StatusBadRequest)
+		return
+	}
+
+	id := r.URL.Query().Get("id")
+	if id == "4" {
+		response := `[{"id":4,"name":null}]`
+		_, err := w.Write([]byte(response))
+		if err != nil {
+			http.Error(w, "Failed to write response", http.StatusInternalServerError)
+		}
+		return
+	}
+	http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+}
+
 // handler function for the test server
 func handleTool2(w http.ResponseWriter, r *http.Request) {
 	// expect GET method
@@ -245,7 +269,7 @@ func TestHttpToolEndpoints(t *testing.T) {
 
 	var args []string
 
-	toolsFile := getHTTPToolsConfig(sourceConfig, HTTP_TOOL_KIND)
+	toolsFile := getHTTPToolsConfig(sourceConfig, HttpToolKind)
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
 		t.Fatalf("command initialization returned an error: %s", err)
@@ -254,16 +278,16 @@ func TestHttpToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
 	}
 
 	select1Want := `["Hello","World"]`
-	invokeParamWant, _ := tests.GetNonSpannerInvokeParamWant()
+	invokeParamWant, invokeParamWantNull, _ := tests.GetNonSpannerInvokeParamWant()
 	tests.RunToolGetTest(t)
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, false)
 	runAdvancedHTTPInvokeTest(t)
 }
 
@@ -383,6 +407,16 @@ func getHTTPToolsConfig(sourceConfig map[string]any, toolKind string) map[string
 				"bodyParams": []tools.Parameter{tools.NewStringParameter("name", "user name")},
 				"headers":    map[string]string{"Content-Type": "application/json"},
 			},
+			"my-param-tool2": map[string]any{
+				"kind":        toolKind,
+				"source":      "my-instance",
+				"method":      "GET",
+				"path":        "/tool1a",
+				"description": "some description",
+				"queryParams": []tools.Parameter{
+					tools.NewIntParameter("id", "user ID")},
+				"headers": map[string]string{"Content-Type": "application/json"},
+			},
 			"my-auth-tool": map[string]any{
 				"kind":        toolKind,
 				"source":      "my-instance",

tests/mssql/mssql_integration_test.go

@@ -26,45 +26,46 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	MSSQL_SOURCE_KIND = "mssql"
-	MSSQL_TOOL_KIND   = "mssql-sql"
-	MSSQL_DATABASE    = os.Getenv("MSSQL_DATABASE")
-	MSSQL_HOST        = os.Getenv("MSSQL_HOST")
-	MSSQL_PORT        = os.Getenv("MSSQL_PORT")
-	MSSQL_USER        = os.Getenv("MSSQL_USER")
-	MSSQL_PASS        = os.Getenv("MSSQL_PASS")
+	MSSQLSourceKind = "mssql"
+	MSSQLToolKind   = "mssql-sql"
+	MSSQLDatabase   = os.Getenv("MSSQL_DATABASE")
+	MSSQLHost       = os.Getenv("MSSQL_HOST")
+	MSSQLPort       = os.Getenv("MSSQL_PORT")
+	MSSQLUser       = os.Getenv("MSSQL_USER")
+	MSSQLPass       = os.Getenv("MSSQL_PASS")
 )
 
 func getMsSQLVars(t *testing.T) map[string]any {
 	switch "" {
-	case MSSQL_DATABASE:
+	case MSSQLDatabase:
 		t.Fatal("'MSSQL_DATABASE' not set")
-	case MSSQL_HOST:
+	case MSSQLHost:
 		t.Fatal("'MSSQL_HOST' not set")
-	case MSSQL_PORT:
+	case MSSQLPort:
 		t.Fatal("'MSSQL_PORT' not set")
-	case MSSQL_USER:
+	case MSSQLUser:
 		t.Fatal("'MSSQL_USER' not set")
-	case MSSQL_PASS:
+	case MSSQLPass:
 		t.Fatal("'MSSQL_PASS' not set")
 	}
 
 	return map[string]any{
-		"kind":     MSSQL_SOURCE_KIND,
-		"host":     MSSQL_HOST,
-		"port":     MSSQL_PORT,
-		"database": MSSQL_DATABASE,
-		"user":     MSSQL_USER,
-		"password": MSSQL_PASS,
+		"kind":     MSSQLSourceKind,
+		"host":     MSSQLHost,
+		"port":     MSSQLPort,
+		"database": MSSQLDatabase,
+		"user":     MSSQLUser,
+		"password": MSSQLPass,
 	}
 }
 
 // Copied over from mssql.go
-func initMssqlConnection(host, port, user, pass, dbname string) (*sql.DB, error) {
+func initMSSQLConnection(host, port, user, pass, dbname string) (*sql.DB, error) {
 	// Create dsn
 	query := url.Values{}
 	query.Add("database", dbname)
@@ -83,14 +84,14 @@ func initMssqlConnection(host, port, user, pass, dbname string) (*sql.DB, error)
 	return db, nil
 }
 
-func TestMssqlToolEndpoints(t *testing.T) {
+func TestMSSQLToolEndpoints(t *testing.T) {
 	sourceConfig := getMsSQLVars(t)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
 	defer cancel()
 
 	var args []string
 
-	pool, err := initMssqlConnection(MSSQL_HOST, MSSQL_PORT, MSSQL_USER, MSSQL_PASS, MSSQL_DATABASE)
+	pool, err := initMSSQLConnection(MSSQLHost, MSSQLPort, MSSQLUser, MSSQLPass, MSSQLDatabase)
 	if err != nil {
 		t.Fatalf("unable to create SQL Server connection pool: %s", err)
 	}
@@ -101,20 +102,20 @@ func TestMssqlToolEndpoints(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := tests.GetMssqlParamToolInfo(tableNameParam)
-	teardownTable1 := tests.SetupMsSQLTable(t, ctx, pool, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := tests.GetMSSQLParamToolInfo(tableNameParam)
+	teardownTable1 := tests.SetupMsSQLTable(t, ctx, pool, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := tests.GetMssqlAuthToolInfo(tableNameAuth)
-	teardownTable2 := tests.SetupMsSQLTable(t, ctx, pool, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := tests.GetMSSQLAuthToolInfo(tableNameAuth)
+	teardownTable2 := tests.SetupMsSQLTable(t, ctx, pool, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, MSSQL_TOOL_KIND, tool_statement1, tool_statement2)
-	toolsFile = tests.AddMssqlExecuteSqlConfig(t, toolsFile)
-	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMssqlTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, MSSQL_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	toolsFile := tests.GetToolsConfig(sourceConfig, MSSQLToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
+	toolsFile = tests.AddMSSQLExecuteSqlConfig(t, toolsFile)
+	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMSSQLTmplToolStatement()
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, MSSQLToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -124,7 +125,7 @@ func TestMssqlToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -132,9 +133,9 @@ func TestMssqlToolEndpoints(t *testing.T) {
 
 	tests.RunToolGetTest(t)
 
-	select1Want, failInvocationWant, createTableStatement := tests.GetMssqlWants()
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	select1Want, failInvocationWant, createTableStatement := tests.GetMSSQLWants()
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, false)
 	tests.RunExecuteSqlToolInvokeTest(t, createTableStatement, select1Want)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())

tests/mysql/mysql_integration_test.go

@@ -25,40 +25,41 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	MYSQL_SOURCE_KIND = "mysql"
-	MYSQL_TOOL_KIND   = "mysql-sql"
-	MYSQL_DATABASE    = os.Getenv("MYSQL_DATABASE")
-	MYSQL_HOST        = os.Getenv("MYSQL_HOST")
-	MYSQL_PORT        = os.Getenv("MYSQL_PORT")
-	MYSQL_USER        = os.Getenv("MYSQL_USER")
-	MYSQL_PASS        = os.Getenv("MYSQL_PASS")
+	MySQLSourceKind = "mysql"
+	MySQLToolKind   = "mysql-sql"
+	MySQLDatabase   = os.Getenv("MYSQL_DATABASE")
+	MySQLHost       = os.Getenv("MYSQL_HOST")
+	MySQLPort       = os.Getenv("MYSQL_PORT")
+	MySQLUser       = os.Getenv("MYSQL_USER")
+	MySQLPass       = os.Getenv("MYSQL_PASS")
 )
 
 func getMySQLVars(t *testing.T) map[string]any {
 	switch "" {
-	case MYSQL_DATABASE:
+	case MySQLDatabase:
 		t.Fatal("'MYSQL_DATABASE' not set")
-	case MYSQL_HOST:
+	case MySQLHost:
 		t.Fatal("'MYSQL_HOST' not set")
-	case MYSQL_PORT:
+	case MySQLPort:
 		t.Fatal("'MYSQL_PORT' not set")
-	case MYSQL_USER:
+	case MySQLUser:
 		t.Fatal("'MYSQL_USER' not set")
-	case MYSQL_PASS:
+	case MySQLPass:
 		t.Fatal("'MYSQL_PASS' not set")
 	}
 
 	return map[string]any{
-		"kind":     MYSQL_SOURCE_KIND,
-		"host":     MYSQL_HOST,
-		"port":     MYSQL_PORT,
-		"database": MYSQL_DATABASE,
-		"user":     MYSQL_USER,
-		"password": MYSQL_PASS,
+		"kind":     MySQLSourceKind,
+		"host":     MySQLHost,
+		"port":     MySQLPort,
+		"database": MySQLDatabase,
+		"user":     MySQLUser,
+		"password": MySQLPass,
 	}
 }
 
@@ -74,14 +75,14 @@ func initMySQLConnectionPool(host, port, user, pass, dbname string) (*sql.DB, er
 	return pool, nil
 }
 
-func TestMysqlToolEndpoints(t *testing.T) {
+func TestMySQLToolEndpoints(t *testing.T) {
 	sourceConfig := getMySQLVars(t)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
 	defer cancel()
 
 	var args []string
 
-	pool, err := initMySQLConnectionPool(MYSQL_HOST, MYSQL_PORT, MYSQL_USER, MYSQL_PASS, MYSQL_DATABASE)
+	pool, err := initMySQLConnectionPool(MySQLHost, MySQLPort, MySQLUser, MySQLPass, MySQLDatabase)
 	if err != nil {
 		t.Fatalf("unable to create MySQL connection pool: %s", err)
 	}
@@ -92,20 +93,20 @@ func TestMysqlToolEndpoints(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := tests.GetMysqlParamToolInfo(tableNameParam)
-	teardownTable1 := tests.SetupMySQLTable(t, ctx, pool, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := tests.GetMySQLParamToolInfo(tableNameParam)
+	teardownTable1 := tests.SetupMySQLTable(t, ctx, pool, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := tests.GetMysqlAuthToolInfo(tableNameAuth)
-	teardownTable2 := tests.SetupMySQLTable(t, ctx, pool, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := tests.GetMySQLAuthToolInfo(tableNameAuth)
+	teardownTable2 := tests.SetupMySQLTable(t, ctx, pool, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, MYSQL_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, MySQLToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	toolsFile = tests.AddMySqlExecuteSqlConfig(t, toolsFile)
-	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMysqlTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, MYSQL_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	tmplSelectCombined, tmplSelectFilterCombined := tests.GetMySQLTmplToolStatement()
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, MySQLToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -115,7 +116,7 @@ func TestMysqlToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -123,9 +124,9 @@ func TestMysqlToolEndpoints(t *testing.T) {
 
 	tests.RunToolGetTest(t)
 
-	select1Want, failInvocationWant, createTableStatement := tests.GetMysqlWants()
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	select1Want, failInvocationWant, createTableStatement := tests.GetMySQLWants()
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, false)
 	tests.RunExecuteSqlToolInvokeTest(t, createTableStatement, select1Want)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())

tests/neo4j/neo4j_integration_test.go

@@ -26,36 +26,36 @@ import (
 	"testing"
 	"time"
 
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	NEO4J_SOURCE_KIND = "neo4j"
-	NEO4J_TOOL_KIND   = "neo4j-cypher"
-	NEO4J_DATABASE    = os.Getenv("NEO4J_DATABASE")
-	NEO4J_URI         = os.Getenv("NEO4J_URI")
-	NEO4J_USER        = os.Getenv("NEO4J_USER")
-	NEO4J_PASS        = os.Getenv("NEO4J_PASS")
+	Neo4jSourceKind = "neo4j"
+	Neo4jDatabase   = os.Getenv("NEO4J_DATABASE")
+	Neo4jUri        = os.Getenv("NEO4J_URI")
+	Neo4jUser       = os.Getenv("NEO4J_USER")
+	Neo4jPass       = os.Getenv("NEO4J_PASS")
 )
 
 func getNeo4jVars(t *testing.T) map[string]any {
 	switch "" {
-	case NEO4J_DATABASE:
+	case Neo4jDatabase:
 		t.Fatal("'NEO4J_DATABASE' not set")
-	case NEO4J_URI:
+	case Neo4jUri:
 		t.Fatal("'NEO4J_URI' not set")
-	case NEO4J_USER:
+	case Neo4jUser:
 		t.Fatal("'NEO4J_USER' not set")
-	case NEO4J_PASS:
+	case Neo4jPass:
 		t.Fatal("'NEO4J_PASS' not set")
 	}
 
 	return map[string]any{
-		"kind":     NEO4J_SOURCE_KIND,
-		"uri":      NEO4J_URI,
-		"database": NEO4J_DATABASE,
-		"user":     NEO4J_USER,
-		"password": NEO4J_PASS,
+		"kind":     Neo4jSourceKind,
+		"uri":      Neo4jUri,
+		"database": Neo4jDatabase,
+		"user":     Neo4jUser,
+		"password": Neo4jPass,
 	}
 }
 
@@ -88,7 +88,7 @@ func TestNeo4jToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)

tests/postgres/postgres_integration_test.go

@@ -25,41 +25,42 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 	"github.com/jackc/pgx/v5/pgxpool"
 )
 
 var (
-	POSTGRES_SOURCE_KIND = "postgres"
-	POSTGRES_TOOL_KIND   = "postgres-sql"
-	POSTGRES_DATABASE    = os.Getenv("POSTGRES_DATABASE")
-	POSTGRES_HOST        = os.Getenv("POSTGRES_HOST")
-	POSTGRES_PORT        = os.Getenv("POSTGRES_PORT")
-	POSTGRES_USER        = os.Getenv("POSTGRES_USER")
-	POSTGRES_PASS        = os.Getenv("POSTGRES_PASS")
+	PostgresSourceKind = "postgres"
+	PostgresToolKind   = "postgres-sql"
+	PostgresDatabase   = os.Getenv("POSTGRES_DATABASE")
+	PostgresHost       = os.Getenv("POSTGRES_HOST")
+	PostgresPort       = os.Getenv("POSTGRES_PORT")
+	PostgresUser       = os.Getenv("POSTGRES_USER")
+	PostgresPass       = os.Getenv("POSTGRES_PASS")
 )
 
 func getPostgresVars(t *testing.T) map[string]any {
 	switch "" {
-	case POSTGRES_DATABASE:
+	case PostgresDatabase:
 		t.Fatal("'POSTGRES_DATABASE' not set")
-	case POSTGRES_HOST:
+	case PostgresHost:
 		t.Fatal("'POSTGRES_HOST' not set")
-	case POSTGRES_PORT:
+	case PostgresPort:
 		t.Fatal("'POSTGRES_PORT' not set")
-	case POSTGRES_USER:
+	case PostgresUser:
 		t.Fatal("'POSTGRES_USER' not set")
-	case POSTGRES_PASS:
+	case PostgresPass:
 		t.Fatal("'POSTGRES_PASS' not set")
 	}
 
 	return map[string]any{
-		"kind":     POSTGRES_SOURCE_KIND,
-		"host":     POSTGRES_HOST,
-		"port":     POSTGRES_PORT,
-		"database": POSTGRES_DATABASE,
-		"user":     POSTGRES_USER,
-		"password": POSTGRES_PASS,
+		"kind":     PostgresSourceKind,
+		"host":     PostgresHost,
+		"port":     PostgresPort,
+		"database": PostgresDatabase,
+		"user":     PostgresUser,
+		"password": PostgresPass,
 	}
 }
 
@@ -87,7 +88,7 @@ func TestPostgres(t *testing.T) {
 
 	var args []string
 
-	pool, err := initPostgresConnectionPool(POSTGRES_HOST, POSTGRES_PORT, POSTGRES_USER, POSTGRES_PASS, POSTGRES_DATABASE)
+	pool, err := initPostgresConnectionPool(PostgresHost, PostgresPort, PostgresUser, PostgresPass, PostgresDatabase)
 	if err != nil {
 		t.Fatalf("unable to create postgres connection pool: %s", err)
 	}
@@ -98,20 +99,20 @@ func TestPostgres(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := tests.GetPostgresSQLParamToolInfo(tableNameParam)
-	teardownTable1 := tests.SetupPostgresSQLTable(t, ctx, pool, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := tests.GetPostgresSQLParamToolInfo(tableNameParam)
+	teardownTable1 := tests.SetupPostgresSQLTable(t, ctx, pool, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := tests.GetPostgresSQLAuthToolInfo(tableNameAuth)
-	teardownTable2 := tests.SetupPostgresSQLTable(t, ctx, pool, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := tests.GetPostgresSQLAuthToolInfo(tableNameAuth)
+	teardownTable2 := tests.SetupPostgresSQLTable(t, ctx, pool, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 	defer teardownTable2(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, POSTGRES_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, PostgresToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	toolsFile = tests.AddPgExecuteSqlConfig(t, toolsFile)
 	tmplSelectCombined, tmplSelectFilterCombined := tests.GetPostgresSQLTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, POSTGRES_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, PostgresToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -121,7 +122,7 @@ func TestPostgres(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -130,8 +131,8 @@ func TestPostgres(t *testing.T) {
 	tests.RunToolGetTest(t)
 
 	select1Want, failInvocationWant, createTableStatement := tests.GetPostgresWants()
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunExecuteSqlToolInvokeTest(t, createTableStatement, select1Want)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())

tests/redis/redis_test.go

@@ -22,28 +22,29 @@ import (
 	"testing"
 	"time"
 
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 	"github.com/redis/go-redis/v9"
 )
 
 var (
-	REDIS_SOURCE_KIND = "redis"
-	REDIS_TOOL_KIND   = "redis"
-	REDIS_ADDRESS     = os.Getenv("REDIS_ADDRESS")
-	REDIS_PASS        = os.Getenv("REDIS_PASS")
+	RedisSourceKind = "redis"
+	RedisToolKind   = "redis"
+	RedisAddress    = os.Getenv("REDIS_ADDRESS")
+	RedisPass       = os.Getenv("REDIS_PASS")
 )
 
 func getRedisVars(t *testing.T) map[string]any {
 	switch "" {
-	case REDIS_ADDRESS:
+	case RedisAddress:
 		t.Fatal("'REDIS_ADDRESS' not set")
-	case REDIS_PASS:
+	case RedisPass:
 		t.Fatal("'REDIS_PASS' not set")
 	}
 	return map[string]any{
-		"kind":     REDIS_SOURCE_KIND,
-		"address":  []string{REDIS_ADDRESS},
-		"password": REDIS_PASS,
+		"kind":     RedisSourceKind,
+		"address":  []string{RedisAddress},
+		"password": RedisPass,
 	}
 }
 
@@ -70,7 +71,7 @@ func TestRedisToolEndpoints(t *testing.T) {
 
 	var args []string
 
-	client, err := initRedisClient(ctx, REDIS_ADDRESS, REDIS_PASS)
+	client, err := initRedisClient(ctx, RedisAddress, RedisPass)
 	if err != nil {
 		t.Fatalf("unable to create Redis connection: %s", err)
 	}
@@ -80,7 +81,7 @@ func TestRedisToolEndpoints(t *testing.T) {
 	defer teardownDB(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetRedisValkeyToolsConfig(sourceConfig, REDIS_TOOL_KIND)
+	toolsFile := tests.GetRedisValkeyToolsConfig(sourceConfig, RedisToolKind)
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -90,7 +91,7 @@ func TestRedisToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -98,18 +99,19 @@ func TestRedisToolEndpoints(t *testing.T) {
 
 	tests.RunToolGetTest(t)
 
-	select1Want, failInvocationWant, invokeParamWant, mcpInvokeParamWant := tests.GetRedisValkeyWants()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	select1Want, failInvocationWant, invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetRedisValkeyWants()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 }
 
 func setupRedisDB(t *testing.T, ctx context.Context, client *redis.Client) func(*testing.T) {
-	keys := []string{"row1", "row2", "row3"}
+	keys := []string{"row1", "row2", "row3", "row4"}
 	commands := [][]any{
 		{"HSET", keys[0], "id", 1, "name", "Alice"},
 		{"HSET", keys[1], "id", 2, "name", "Jane"},
 		{"HSET", keys[2], "id", 3, "name", "Sid"},
-		{"HSET", tests.SERVICE_ACCOUNT_EMAIL, "name", "Alice"},
+		{"HSET", keys[3], "id", 4, "name", nil},
+		{"HSET", tests.ServiceAccountEmail, "name", "Alice"},
 	}
 	for _, c := range commands {
 		resp := client.Do(ctx, c...)

tests/server.go

@@ -15,13 +15,10 @@
 package tests
 
 import (
-	"bufio"
 	"context"
 	"fmt"
 	"io"
 	"os"
-	"regexp"
-	"strings"
 
 	yaml "github.com/goccy/go-yaml"
 
@@ -70,7 +67,7 @@ func StartCmd(ctx context.Context, toolsFile map[string]any, args ...string) (*C
 	if err != nil {
 		return nil, nil, fmt.Errorf("unable to write tools file: %s", err)
 	}
-	args = append(args, "--tools_file", path)
+	args = append(args, "--tools-file", path)
 
 	ctx, cancel := context.WithCancel(ctx)
 	// Open a pipe for tracking the output from the cmd
@@ -133,63 +130,3 @@ func (c *CmdExec) Close() {
 		c.Close()
 	}
 }
-
-// WaitForString waits until the server logs a single line that matches the provided regex.
-// returns the output of whatever the server sent so far.
-func (c *CmdExec) WaitForString(ctx context.Context, re *regexp.Regexp) (string, error) {
-	ctx, cancel := context.WithCancel(ctx)
-	defer cancel()
-	in := bufio.NewReader(c.Out)
-
-	// read lines in background, sending result of each read over a channel
-	// this allows us to use in.ReadString without blocking
-	type result struct {
-		s   string
-		err error
-	}
-	output := make(chan result)
-	go func() {
-		defer close(output)
-		for {
-			select {
-			case <-ctx.Done():
-				// if the context is canceled, the orig thread will send back the error
-				// so we can just exit the goroutine here
-				return
-			default:
-				// otherwise read a line from the output
-				s, err := in.ReadString('\n')
-				if err != nil {
-					output <- result{err: err}
-					return
-				}
-				output <- result{s: s}
-				// if that last string matched, exit the goroutine
-				if re.MatchString(s) {
-					return
-				}
-			}
-		}
-	}()
-
-	// collect the output until the ctx is canceled, an error was hit,
-	// or match was found (which is indicated the channel is closed)
-	var sb strings.Builder
-	for {
-		select {
-		case <-ctx.Done():
-			// if ctx is done, return that error
-			return sb.String(), ctx.Err()
-		case o, ok := <-output:
-			if !ok {
-				// match was found!
-				return sb.String(), nil
-			}
-			if o.err != nil {
-				// error was found!
-				return sb.String(), o.err
-			}
-			sb.WriteString(o.s)
-		}
-	}
-}

tests/source.go

@@ -26,6 +26,7 @@ import (
 	"time"
 
 	"cloud.google.com/go/cloudsqlconn"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 )
 
 // RunSourceConnection test for source connection
@@ -57,7 +58,7 @@ func RunSourceConnectionTest(t *testing.T, sourceConfig map[string]any, toolKind
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		return fmt.Errorf("toolbox didn't start successfully: %s", err)

tests/spanner/spanner_integration_test.go

@@ -31,33 +31,34 @@ import (
 	database "cloud.google.com/go/spanner/admin/database/apiv1"
 	"cloud.google.com/go/spanner/admin/database/apiv1/databasepb"
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/internal/tools"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	SPANNER_SOURCE_KIND = "spanner"
-	SPANNER_TOOL_KIND   = "spanner-sql"
-	SPANNER_PROJECT     = os.Getenv("SPANNER_PROJECT")
-	SPANNER_DATABASE    = os.Getenv("SPANNER_DATABASE")
-	SPANNER_INSTANCE    = os.Getenv("SPANNER_INSTANCE")
+	SpannerSourceKind = "spanner"
+	SpannerToolKind   = "spanner-sql"
+	SpannerProject    = os.Getenv("SPANNER_PROJECT")
+	SpannerDatabase   = os.Getenv("SPANNER_DATABASE")
+	SpannerInstance   = os.Getenv("SPANNER_INSTANCE")
 )
 
 func getSpannerVars(t *testing.T) map[string]any {
 	switch "" {
-	case SPANNER_PROJECT:
+	case SpannerProject:
 		t.Fatal("'SPANNER_PROJECT' not set")
-	case SPANNER_DATABASE:
+	case SpannerDatabase:
 		t.Fatal("'SPANNER_DATABASE' not set")
-	case SPANNER_INSTANCE:
+	case SpannerInstance:
 		t.Fatal("'SPANNER_INSTANCE' not set")
 	}
 
 	return map[string]any{
-		"kind":     SPANNER_SOURCE_KIND,
-		"project":  SPANNER_PROJECT,
-		"instance": SPANNER_INSTANCE,
-		"database": SPANNER_DATABASE,
+		"kind":     SpannerSourceKind,
+		"project":  SpannerProject,
+		"instance": SpannerInstance,
+		"database": SpannerDatabase,
 	}
 }
 
@@ -90,13 +91,13 @@ func initSpannerClients(ctx context.Context, project, instance, dbname string) (
 
 func TestSpannerToolEndpoints(t *testing.T) {
 	sourceConfig := getSpannerVars(t)
-	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute)
 	defer cancel()
 
 	var args []string
 
 	// Create Spanner client
-	dataClient, adminClient, err := initSpannerClients(ctx, SPANNER_PROJECT, SPANNER_INSTANCE, SPANNER_DATABASE)
+	dataClient, adminClient, err := initSpannerClients(ctx, SpannerProject, SpannerInstance, SpannerDatabase)
 	if err != nil {
 		t.Fatalf("unable to create Spanner client: %s", err)
 	}
@@ -107,19 +108,19 @@ func TestSpannerToolEndpoints(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := getSpannerParamToolInfo(tableNameParam)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := getSpannerParamToolInfo(tableNameParam)
 	dbString := fmt.Sprintf(
 		"projects/%s/instances/%s/databases/%s",
-		SPANNER_PROJECT,
-		SPANNER_INSTANCE,
-		SPANNER_DATABASE,
+		SpannerProject,
+		SpannerInstance,
+		SpannerDatabase,
 	)
-	teardownTable1 := setupSpannerTable(t, ctx, adminClient, dataClient, create_statement1, insert_statement1, tableNameParam, dbString, params1)
+	teardownTable1 := setupSpannerTable(t, ctx, adminClient, dataClient, createParamTableStmt, insertParamTableStmt, tableNameParam, dbString, paramTestParams)
 	defer teardownTable1(t)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := getSpannerAuthToolInfo(tableNameAuth)
-	teardownTable2 := setupSpannerTable(t, ctx, adminClient, dataClient, create_statement2, insert_statement2, tableNameAuth, dbString, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := getSpannerAuthToolInfo(tableNameAuth)
+	teardownTable2 := setupSpannerTable(t, ctx, adminClient, dataClient, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, dbString, authTestParams)
 	defer teardownTable2(t)
 
 	// set up data for template param tool
@@ -128,7 +129,7 @@ func TestSpannerToolEndpoints(t *testing.T) {
 	defer teardownTableTmpl(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, SPANNER_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, SpannerToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	toolsFile = addSpannerExecuteSqlConfig(t, toolsFile)
 	toolsFile = addSpannerReadOnlyConfig(t, toolsFile)
 	toolsFile = addTemplateParamConfig(t, toolsFile)
@@ -141,7 +142,7 @@ func TestSpannerToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -152,10 +153,11 @@ func TestSpannerToolEndpoints(t *testing.T) {
 	select1Want := "[{\"\":\"1\"}]"
 	accessSchemaWant := "[{\"schema_name\":\"INFORMATION_SCHEMA\"}]"
 	invokeParamWant := "[{\"id\":\"1\",\"name\":\"Alice\"},{\"id\":\"3\",\"name\":\"Sid\"}]"
+	invokeParamWantNull := `[{"id":"4","name":null}]`
 	mcpInvokeParamWant := `{"jsonrpc":"2.0","id":"my-param-tool","result":{"content":[{"type":"text","text":"{\"id\":\"1\",\"name\":\"Alice\"}"},{"type":"text","text":"{\"id\":\"3\",\"name\":\"Sid\"}"}]}}`
 	failInvocationWant := `"jsonrpc":"2.0","id":"invoke-fail-tool","result":{"content":[{"type":"text","text":"unable to execute client: unable to parse row: spanner: code = \"InvalidArgument\", desc = \"Syntax error: Unexpected identifier \\\\\\\"SELEC\\\\\\\" [at 1:1]\\\\nSELEC 1;\\\\n^\"`
 
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	runSpannerSchemaToolInvokeTest(t, accessSchemaWant)
 	runSpannerExecuteSqlToolInvokeTest(t, select1Want, invokeParamWant, tableNameParam, tableNameAuth)
@@ -169,26 +171,28 @@ func TestSpannerToolEndpoints(t *testing.T) {
 }
 
 // getSpannerToolInfo returns statements and param for my-param-tool for spanner-sql kind
-func getSpannerParamToolInfo(tableName string) (string, string, string, map[string]any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id INT64, name STRING(MAX)) PRIMARY KEY (id)", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (id, name) VALUES (1, @name1), (2, @name2), (3, @name3)", tableName)
-	tool_statement := fmt.Sprintf("SELECT * FROM %s WHERE id = @id OR name = @name", tableName)
-	params := map[string]any{"name1": "Alice", "name2": "Jane", "name3": "Sid"}
-	return create_statement, insert_statement, tool_statement, params
+func getSpannerParamToolInfo(tableName string) (string, string, string, string, string, map[string]any) {
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id INT64, name STRING(MAX)) PRIMARY KEY (id)", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (id, name) VALUES (1, @name1), (2, @name2), (3, @name3), (4, @name4)", tableName)
+	toolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = @id OR name = @name", tableName)
+	toolStatement2 := fmt.Sprintf("SELECT * FROM %s WHERE id = @id", tableName)
+	arrayToolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id IN UNNEST(@idArray) AND name IN UNNEST(@nameArray)", tableName)
+	params := map[string]any{"name1": "Alice", "name2": "Jane", "name3": "Sid", "name4": nil}
+	return createStatement, insertStatement, toolStatement, toolStatement2, arrayToolStatement, params
 }
 
 // getSpannerAuthToolInfo returns statements and param of my-auth-tool for spanner-sql kind
 func getSpannerAuthToolInfo(tableName string) (string, string, string, map[string]any) {
-	create_statement := fmt.Sprintf("CREATE TABLE %s (id INT64, name STRING(MAX), email STRING(MAX)) PRIMARY KEY (id)", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (id, name, email) VALUES (1, @name1, @email1), (2, @name2, @email2)", tableName)
-	tool_statement := fmt.Sprintf("SELECT name FROM %s WHERE email = @email", tableName)
+	createStatement := fmt.Sprintf("CREATE TABLE %s (id INT64, name STRING(MAX), email STRING(MAX)) PRIMARY KEY (id)", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (id, name, email) VALUES (1, @name1, @email1), (2, @name2, @email2)", tableName)
+	toolStatement := fmt.Sprintf("SELECT name FROM %s WHERE email = @email", tableName)
 	params := map[string]any{
 		"name1":  "Alice",
-		"email1": tests.SERVICE_ACCOUNT_EMAIL,
+		"email1": tests.ServiceAccountEmail,
 		"name2":  "Jane",
 		"email2": "janedoe@gmail.com",
 	}
-	return create_statement, insert_statement, tool_statement, params
+	return createStatement, insertStatement, toolStatement, params
 }
 
 // setupSpannerTable creates and inserts data into a table of tool
@@ -230,13 +234,13 @@ func setupSpannerTable(t *testing.T, ctx context.Context, adminClient *database.
 			Statements: []string{fmt.Sprintf("DROP TABLE %s", tableName)},
 		})
 		if err != nil {
-			t.Errorf("unable to start drop table operation: %s", err)
+			t.Errorf("unable to start drop %s operation: %s", tableName, err)
 			return
 		}
 
-		err = op.Wait(ctx)
-		if err != nil {
-			t.Errorf("Teardown failed: %s", err)
+		opErr := op.Wait(ctx)
+		if opErr != nil {
+			t.Errorf("Teardown failed: %s", opErr)
 		}
 	}
 }
@@ -352,7 +356,7 @@ func addTemplateParamConfig(t *testing.T, config map[string]any) map[string]any
 	return config
 }
 
-func runSpannerExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokeParamWant, tableNameParam, tableNameAuth string) {
+func runSpannerExecuteSqlToolInvokeTest(t *testing.T, select1Want, invokeParamWant, tableNameParam, tableNameAuth string) {
 	// Get ID token
 	idToken, err := tests.GetGoogleIdToken(tests.ClientId)
 	if err != nil {
@@ -373,7 +377,7 @@ func runSpannerExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokeParam
 			api:           "http://127.0.0.1:5000/api/tool/my-exec-sql-tool-read-only/invoke",
 			requestHeader: map[string]string{},
 			requestBody:   bytes.NewBuffer([]byte(`{"sql":"SELECT 1"}`)),
-			want:          select_1_want,
+			want:          select1Want,
 			isErr:         false,
 		},
 		{
@@ -417,7 +421,7 @@ func runSpannerExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokeParam
 			api:           "http://127.0.0.1:5000/api/tool/my-exec-sql-tool/invoke",
 			requestHeader: map[string]string{},
 			requestBody:   bytes.NewBuffer([]byte(`{"sql":"SELECT 1"}`)),
-			want:          select_1_want,
+			want:          select1Want,
 			isErr:         false,
 		},
 		{
@@ -438,7 +442,7 @@ func runSpannerExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokeParam
 			name:          "invoke my-exec-sql-tool insert entry",
 			api:           "http://127.0.0.1:5000/api/tool/my-exec-sql-tool/invoke",
 			requestHeader: map[string]string{},
-			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"sql\":\"INSERT INTO %s (id, name) VALUES (4, 'test_name')\"}", tableNameParam))),
+			requestBody:   bytes.NewBuffer([]byte(fmt.Sprintf("{\"sql\":\"INSERT INTO %s (id, name) VALUES (5, 'test_name')\"}", tableNameParam))),
 			want:          "null",
 			isErr:         false,
 		},
@@ -455,7 +459,7 @@ func runSpannerExecuteSqlToolInvokeTest(t *testing.T, select_1_want, invokeParam
 			requestHeader: map[string]string{"my-google-auth_token": idToken},
 			requestBody:   bytes.NewBuffer([]byte(`{"sql":"SELECT 1"}`)),
 			isErr:         false,
-			want:          select_1_want,
+			want:          select1Want,
 		},
 		{
 			name:          "Invoke my-auth-exec-sql-tool with invalid auth token",

tests/sqlite/sqlite_integration_test.go

@@ -25,19 +25,20 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 )
 
 var (
-	SQLITE_SOURCE_KIND = "sqlite"
-	SQLITE_TOOL_KIND   = "sqlite-sql"
-	SQLITE_DATABASE    = os.Getenv("SQLITE_DATABASE")
+	SQLiteSourceKind = "sqlite"
+	SQLiteToolKind   = "sqlite-sql"
+	SQLiteDatabase   = os.Getenv("SQLITE_DATABASE")
 )
 
 func getSQLiteVars(t *testing.T) map[string]any {
 	return map[string]any{
-		"kind":     SQLITE_SOURCE_KIND,
-		"database": SQLITE_DATABASE,
+		"kind":     SQLiteSourceKind,
+		"database": SQLiteDatabase,
 	}
 }
 
@@ -80,20 +81,22 @@ func setupSQLiteTestDB(t *testing.T, ctx context.Context, db *sql.DB, createStat
 	}
 }
 
-func getSQLiteParamToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s (id INTEGER PRIMARY KEY, name TEXT);", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name) VALUES (?), (?), (?);", tableName)
-	tool_statement := fmt.Sprintf("SELECT * FROM %s WHERE id = ? OR name = ?;", tableName)
-	params := []any{"Alice", "Jane", "Sid"}
-	return create_statement, insert_statement, tool_statement, params
+func getSQLiteParamToolInfo(tableName string) (string, string, string, string, string, []any) {
+	createStatement := fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s (id INTEGER PRIMARY KEY, name TEXT);", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name) VALUES (?), (?), (?), (?);", tableName)
+	toolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = ? OR name = ?;", tableName)
+	toolStatement2 := fmt.Sprintf("SELECT * FROM %s WHERE id = ?;", tableName)
+	arrayToolStatement := fmt.Sprintf("SELECT * FROM %s WHERE id = ANY({{.idArray}}) AND name = ANY({{.nameArray}});", tableName)
+	params := []any{"Alice", "Jane", "Sid", nil}
+	return createStatement, insertStatement, toolStatement, toolStatement2, arrayToolStatement, params
 }
 
 func getSQLiteAuthToolInfo(tableName string) (string, string, string, []any) {
-	create_statement := fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s (id INTEGER PRIMARY KEY, name TEXT NOT NULL, email TEXT)", tableName)
-	insert_statement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES (?, ?), (?,?) RETURNING id, name, email;", tableName)
-	tool_statement := fmt.Sprintf("SELECT name FROM %s WHERE email = ?;", tableName)
-	params := []any{"Alice", tests.SERVICE_ACCOUNT_EMAIL, "Jane", "janedoe@gmail.com"}
-	return create_statement, insert_statement, tool_statement, params
+	createStatement := fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s (id INTEGER PRIMARY KEY, name TEXT NOT NULL, email TEXT)", tableName)
+	insertStatement := fmt.Sprintf("INSERT INTO %s (name, email) VALUES (?, ?), (?,?) RETURNING id, name, email;", tableName)
+	toolStatement := fmt.Sprintf("SELECT name FROM %s WHERE email = ?;", tableName)
+	params := []any{"Alice", tests.ServiceAccountEmail, "Jane", "janedoe@gmail.com"}
+	return createStatement, insertStatement, toolStatement, params
 }
 
 func getSQLiteTmplToolStatement() (string, string) {
@@ -103,7 +106,7 @@ func getSQLiteTmplToolStatement() (string, string) {
 }
 
 func TestSQLiteToolEndpoint(t *testing.T) {
-	db, teardownDb, sqliteDb, err := initSQLiteDb(t, SQLITE_DATABASE)
+	db, teardownDb, sqliteDb, err := initSQLiteDb(t, SQLiteDatabase)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -123,17 +126,17 @@ func TestSQLiteToolEndpoint(t *testing.T) {
 	tableNameTemplateParam := "template_param_table_" + strings.ReplaceAll(uuid.New().String(), "-", "")
 
 	// set up data for param tool
-	create_statement1, insert_statement1, tool_statement1, params1 := getSQLiteParamToolInfo(tableNameParam)
-	setupSQLiteTestDB(t, ctx, db, create_statement1, insert_statement1, tableNameParam, params1)
+	createParamTableStmt, insertParamTableStmt, paramToolStmt, paramToolStmt2, arrayToolStmt, paramTestParams := getSQLiteParamToolInfo(tableNameParam)
+	setupSQLiteTestDB(t, ctx, db, createParamTableStmt, insertParamTableStmt, tableNameParam, paramTestParams)
 
 	// set up data for auth tool
-	create_statement2, insert_statement2, tool_statement2, params2 := getSQLiteAuthToolInfo(tableNameAuth)
-	setupSQLiteTestDB(t, ctx, db, create_statement2, insert_statement2, tableNameAuth, params2)
+	createAuthTableStmt, insertAuthTableStmt, authToolStmt, authTestParams := getSQLiteAuthToolInfo(tableNameAuth)
+	setupSQLiteTestDB(t, ctx, db, createAuthTableStmt, insertAuthTableStmt, tableNameAuth, authTestParams)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetToolsConfig(sourceConfig, SQLITE_TOOL_KIND, tool_statement1, tool_statement2)
+	toolsFile := tests.GetToolsConfig(sourceConfig, SQLiteToolKind, paramToolStmt, paramToolStmt2, arrayToolStmt, authToolStmt)
 	tmplSelectCombined, tmplSelectFilterCombined := getSQLiteTmplToolStatement()
-	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, SQLITE_TOOL_KIND, tmplSelectCombined, tmplSelectFilterCombined, "")
+	toolsFile = tests.AddTemplateParamConfig(t, toolsFile, SQLiteToolKind, tmplSelectCombined, tmplSelectFilterCombined, "")
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -143,7 +146,7 @@ func TestSQLiteToolEndpoint(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -153,8 +156,8 @@ func TestSQLiteToolEndpoint(t *testing.T) {
 
 	select1Want := "[{\"1\":1}]"
 	failInvocationWant := `{"jsonrpc":"2.0","id":"invoke-fail-tool","result":{"content":[{"type":"text","text":"unable to execute query: SQL logic error: near \"SELEC\": syntax error (1)"}],"isError":true}}`
-	invokeParamWant, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetNonSpannerInvokeParamWant()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, false)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 	tests.RunToolInvokeWithTemplateParameters(t, tableNameTemplateParam, tests.NewTemplateParameterTestConfig())
 }

tests/tool.go

@@ -76,7 +76,7 @@ func RunToolGetTest(t *testing.T) {
 }
 
 // RunToolInvoke runs the tool invoke endpoint
-func RunToolInvokeTest(t *testing.T, select1Want, invokeParamWant string) {
+func RunToolInvokeTest(t *testing.T, select1Want, invokeParamWant, invokeParamWantNull string, supportsArray bool) {
 	// Get ID token
 	idToken, err := GetGoogleIdToken(ClientId)
 	if err != nil {
@@ -109,19 +109,35 @@ func RunToolInvokeTest(t *testing.T, select1Want, invokeParamWant string) {
 			isErr:         false,
 		},
 		{
-			name:          "Invoke my-tool without parameters",
-			api:           "http://127.0.0.1:5000/api/tool/my-tool/invoke",
+			name:          "invoke my-param-tool2 with nil response",
+			api:           "http://127.0.0.1:5000/api/tool/my-param-tool2/invoke",
+			requestHeader: map[string]string{},
+			requestBody:   bytes.NewBuffer([]byte(`{"id": 4}`)),
+			want:          invokeParamWantNull,
+			isErr:         false,
+		},
+		{
+			name:          "Invoke my-param-tool without parameters",
+			api:           "http://127.0.0.1:5000/api/tool/my-param-tool/invoke",
 			requestHeader: map[string]string{},
 			requestBody:   bytes.NewBuffer([]byte(`{}`)),
 			isErr:         true,
 		},
 		{
-			name:          "Invoke my-tool with insufficient parameters",
-			api:           "http://127.0.0.1:5000/api/tool/my-tool/invoke",
+			name:          "Invoke my-param-tool with insufficient parameters",
+			api:           "http://127.0.0.1:5000/api/tool/my-param-tool/invoke",
 			requestHeader: map[string]string{},
 			requestBody:   bytes.NewBuffer([]byte(`{"id": 1}`)),
 			isErr:         true,
 		},
+		{
+			name:          "invoke my-array-tool",
+			api:           "http://127.0.0.1:5000/api/tool/my-array-tool/invoke",
+			requestHeader: map[string]string{},
+			requestBody:   bytes.NewBuffer([]byte(`{"idArray": [1,2,3], "nameArray": ["Alice", "Sid", "RandomName"], "cmdArray": ["HGETALL", "row3"]}`)),
+			want:          invokeParamWant,
+			isErr:         !supportsArray,
+		},
 		{
 			name:          "Invoke my-auth-tool with auth token",
 			api:           "http://127.0.0.1:5000/api/tool/my-auth-tool/invoke",
@@ -428,7 +444,7 @@ func RunToolInvokeWithTemplateParameters(t *testing.T, tableName string, config
 	}
 }
 
-func RunExecuteSqlToolInvokeTest(t *testing.T, createTableStatement string, select_1_want string) {
+func RunExecuteSqlToolInvokeTest(t *testing.T, createTableStatement string, select1Want string) {
 	// Get ID token
 	idToken, err := GetGoogleIdToken(ClientId)
 	if err != nil {
@@ -449,7 +465,7 @@ func RunExecuteSqlToolInvokeTest(t *testing.T, createTableStatement string, sele
 			api:           "http://127.0.0.1:5000/api/tool/my-exec-sql-tool/invoke",
 			requestHeader: map[string]string{},
 			requestBody:   bytes.NewBuffer([]byte(`{"sql":"SELECT 1"}`)),
-			want:          select_1_want,
+			want:          select1Want,
 			isErr:         false,
 		},
 		{
@@ -489,7 +505,7 @@ func RunExecuteSqlToolInvokeTest(t *testing.T, createTableStatement string, sele
 			requestHeader: map[string]string{"my-google-auth_token": idToken},
 			requestBody:   bytes.NewBuffer([]byte(`{"sql":"SELECT 1"}`)),
 			isErr:         false,
-			want:          select_1_want,
+			want:          select1Want,
 		},
 		{
 			name:          "Invoke my-auth-exec-sql-tool with invalid auth token",
@@ -597,7 +613,7 @@ func RunInitialize(t *testing.T, protocolVersion string) string {
 }
 
 // RunMCPToolCallMethod runs the tool/call for mcp endpoint
-func RunMCPToolCallMethod(t *testing.T, invokeParamWant, fail_invocation_want string) {
+func RunMCPToolCallMethod(t *testing.T, invokeParamWant, failInvocationWant string) {
 	sessionId := RunInitialize(t, "2024-11-05")
 	header := map[string]string{}
 	if sessionId != "" {
@@ -715,7 +731,7 @@ func RunMCPToolCallMethod(t *testing.T, invokeParamWant, fail_invocation_want st
 					"arguments": map[string]any{"id": 1},
 				},
 			},
-			want: fail_invocation_want,
+			want: failInvocationWant,
 		},
 	}
 	for _, tc := range invokeTcs {

tests/utility/wait_integration_test.go

@@ -0,0 +1,118 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package utility
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"regexp"
+	"testing"
+	"time"
+
+	"github.com/googleapis/genai-toolbox/internal/testutils"
+	"github.com/googleapis/genai-toolbox/tests"
+)
+
+func RunWaitTool(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+	defer cancel()
+
+	args := []string{"--port", "5001"}
+
+	toolsFile := map[string]any{
+		"tools": map[string]any{
+			"my-wait-for-tool": map[string]any{
+				"kind":        "wait",
+				"description": "Wait for a specified duration.",
+				"timeout":     "30s",
+			},
+		},
+	}
+	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
+	if err != nil {
+		t.Fatalf("command initialization returned an error: %s", err)
+	}
+	defer cleanup()
+
+	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
+	defer cancel()
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
+	if err != nil {
+		t.Logf("toolbox command logs: \n%s", out)
+		t.Fatalf("toolbox didn't start successfully: %s", err)
+	}
+
+	invokeTcs := []struct {
+		name        string
+		api         string
+		requestBody io.Reader
+		want        string
+		isErr       bool
+	}{
+		{
+			name:        "invoke my-wait-for-tool",
+			api:         "http://127.0.0.1:5001/api/tool/my-wait-for-tool/invoke",
+			requestBody: bytes.NewBuffer([]byte(`{"duration": "1s"}`)),
+			want:        `["Wait for 1s completed successfully."]`,
+			isErr:       false,
+		},
+		{
+			name:        "invoke my-wait-for-tool with invalid duration",
+			api:         "http://127.0.0.1:5001/api/tool/my-wait-for-tool/invoke",
+			requestBody: bytes.NewBuffer([]byte(`{"duration": "invalid"}`)),
+			isErr:       true,
+		},
+	}
+	for _, tc := range invokeTcs {
+		t.Run(tc.name, func(t *testing.T) {
+			req, err := http.NewRequest(http.MethodPost, tc.api, tc.requestBody)
+			if err != nil {
+				t.Fatalf("unable to create request: %s", err)
+			}
+			req.Header.Add("Content-type", "application/json")
+			resp, err := http.DefaultClient.Do(req)
+			if err != nil {
+				t.Fatalf("unable to send request: %s", err)
+			}
+			defer resp.Body.Close()
+
+			if resp.StatusCode != http.StatusOK {
+				if tc.isErr {
+					return
+				}
+				bodyBytes, _ := io.ReadAll(resp.Body)
+				t.Fatalf("response status code is not 200, got %d: %s", resp.StatusCode, string(bodyBytes))
+			}
+
+			var body map[string]interface{}
+			err = json.NewDecoder(resp.Body).Decode(&body)
+			if err != nil {
+				t.Fatalf("error parsing response body")
+			}
+
+			got, ok := body["result"].(string)
+			if !ok {
+				t.Fatalf("unable to find result in response body")
+			}
+
+			if got != tc.want {
+				t.Fatalf("unexpected value: got %q, want %q", got, tc.want)
+			}
+		})
+	}
+}

tests/valkey/valkey_test.go

@@ -22,24 +22,25 @@ import (
 	"testing"
 	"time"
 
+	"github.com/googleapis/genai-toolbox/internal/testutils"
 	"github.com/googleapis/genai-toolbox/tests"
 	"github.com/valkey-io/valkey-go"
 )
 
 var (
-	VALKEY_SOURCE_KIND = "valkey"
-	VALKEY_TOOL_KIND   = "valkey"
-	VALKEY_ADDRESS     = os.Getenv("VALKEY_ADDRESS")
+	ValkeySourceKind = "valkey"
+	ValkeyToolKind   = "valkey"
+	ValkeyAddress    = os.Getenv("VALKEY_ADDRESS")
 )
 
 func getValkeyVars(t *testing.T) map[string]any {
 	switch "" {
-	case VALKEY_ADDRESS:
+	case ValkeyAddress:
 		t.Fatal("'VALKEY_ADDRESS' not set")
 	}
 	return map[string]any{
-		"kind":         VALKEY_SOURCE_KIND,
-		"address":      []string{VALKEY_ADDRESS},
+		"kind":         ValkeySourceKind,
+		"address":      []string{ValkeyAddress},
 		"disableCache": true,
 	}
 }
@@ -73,7 +74,7 @@ func TestValkeyToolEndpoints(t *testing.T) {
 
 	var args []string
 
-	client, err := initValkeyClient(ctx, []string{VALKEY_ADDRESS})
+	client, err := initValkeyClient(ctx, []string{ValkeyAddress})
 	if err != nil {
 		t.Fatalf("unable to create Valkey connection: %s", err)
 	}
@@ -83,7 +84,7 @@ func TestValkeyToolEndpoints(t *testing.T) {
 	defer teardownDB(t)
 
 	// Write config into a file and pass it to command
-	toolsFile := tests.GetRedisValkeyToolsConfig(sourceConfig, VALKEY_TOOL_KIND)
+	toolsFile := tests.GetRedisValkeyToolsConfig(sourceConfig, ValkeyToolKind)
 
 	cmd, cleanup, err := tests.StartCmd(ctx, toolsFile, args...)
 	if err != nil {
@@ -93,7 +94,7 @@ func TestValkeyToolEndpoints(t *testing.T) {
 
 	waitCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
-	out, err := cmd.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`))
+	out, err := testutils.WaitForString(waitCtx, regexp.MustCompile(`Server ready to serve`), cmd.Out)
 	if err != nil {
 		t.Logf("toolbox command logs: \n%s", out)
 		t.Fatalf("toolbox didn't start successfully: %s", err)
@@ -101,18 +102,19 @@ func TestValkeyToolEndpoints(t *testing.T) {
 
 	tests.RunToolGetTest(t)
 
-	select1Want, failInvocationWant, invokeParamWant, mcpInvokeParamWant := tests.GetRedisValkeyWants()
-	tests.RunToolInvokeTest(t, select1Want, invokeParamWant)
+	select1Want, failInvocationWant, invokeParamWant, invokeParamWantNull, mcpInvokeParamWant := tests.GetRedisValkeyWants()
+	tests.RunToolInvokeTest(t, select1Want, invokeParamWant, invokeParamWantNull, true)
 	tests.RunMCPToolCallMethod(t, mcpInvokeParamWant, failInvocationWant)
 }
 
 func setupValkeyDB(t *testing.T, ctx context.Context, client valkey.Client) func(*testing.T) {
-	keys := []string{"row1", "row2", "row3"}
+	keys := []string{"row1", "row2", "row3", "row4"}
 	commands := [][]string{
 		{"HSET", keys[0], "name", "Alice", "id", "1"},
 		{"HSET", keys[1], "name", "Jane", "id", "2"},
 		{"HSET", keys[2], "name", "Sid", "id", "3"},
-		{"HSET", tests.SERVICE_ACCOUNT_EMAIL, "name", "Alice"},
+		{"HSET", keys[3], "name", "", "id", "4"},
+		{"HSET", tests.ServiceAccountEmail, "name", "Alice"},
 	}
 	builtCmds := make(valkey.Commands, len(commands))