Files
genai-toolbox/docs/en/getting-started/configure.md
Yuan Teoh 293c1d6889 feat!: update configuration file v2 (#2369)
This PR introduces a significant update to the Toolbox configuration
file format, which is one of the primary **breaking changes** required
for the implementation of the Advanced Control Plane.

# Summary of Changes
The configuration schema has been updated to enforce resource isolation
and facilitate atomic, incremental updates.
* Resource Isolation: Resource definitions are now separated into
individual blocks, using a distinct structure for each resource type
(Source, Tool, Toolset, etc.). This improves readability, management,
and auditing of configuration files.
* Field Name Modification: Internal field names have been modified to
align with declarative methodologies. Specifically, the configuration
now separates kind (general resource type, e.g., Source) from type
(specific implementation, e.g., Postgres).

# User Impact
Existing tools.yaml configuration files are now in an outdated format.
Users must eventually update their files to the new YAML format.

# Mitigation & Compatibility
Backward compatibility is maintained during this transition to ensure no
immediate user action is required for existing files.
* Immediate Backward Compatibility: The source code includes a
pre-processing layer that automatically detects outdated configuration
files (v1 format) and converts them to the new v2 format under the hood.
* [COMING SOON] Migration Support: The new toolbox migrate subcommand
will be introduced to allow users to automatically convert their old
configuration files to the latest format.

# Example
Example for config file v2:
```
kind: sources
name: my-pg-instance
type: cloud-sql-postgres
project: my-project
region: my-region
instance: my-instance
database: my_db
user: my_user
password: my_pass
---
kind: authServices
name: my-google-auth
type: google
clientId: testing-id
---
kind: tools
name: example_tool
type: postgres-sql
source: my-pg-instance
description: some description
statement: SELECT * FROM SQL_STATEMENT;
parameters:
- name: country
  type: string
  description: some description
---
kind: tools
name: example_tool_2
type: postgres-sql
source: my-pg-instance
description: returning the number one
statement: SELECT 1;
---
kind: toolsets
name: example_toolset
tools:
- example_tool
```

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Averi Kitsch <akitsch@google.com>
2026-01-27 16:58:43 -08:00

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2.9 KiB
Markdown

---
title: "Configuration"
type: docs
weight: 6
description: >
How to configure Toolbox's tools.yaml file.
---
The primary way to configure Toolbox is through the `tools.yaml` file. If you
have multiple files, you can tell toolbox which to load with the `--tools-file
tools.yaml` flag.
You can find more detailed reference documentation to all resource types in the
[Resources](../resources/).
### Using Environment Variables
To avoid hardcoding certain secret fields like passwords, usernames, API keys
etc., you could use environment variables instead with the format `${ENV_NAME}`.
```yaml
user: ${USER_NAME}
password: ${PASSWORD}
```
A default value can be specified like `${ENV_NAME:default}`.
```yaml
port: ${DB_PORT:3306}
```
### Sources
The `sources` section of your `tools.yaml` defines what data sources your
Toolbox should have access to. Most tools will have at least one source to
execute against.
```yaml
kind: sources
name: my-pg-source
type: postgres
host: 127.0.0.1
port: 5432
database: toolbox_db
user: ${USER_NAME}
password: ${PASSWORD}
```
For more details on configuring different types of sources, see the
[Sources](../resources/sources/).
### Tools
The `tools` section of your `tools.yaml` defines the actions your agent can
take: what type of tool it is, which source(s) it affects, what parameters it
uses, etc.
```yaml
kind: tools
name: search-hotels-by-name
type: 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 || '%';
```
For more details on configuring different types of tools, see the
[Tools](../resources/tools/).
### Toolsets
The `toolsets` section of your `tools.yaml` allows you to define groups of tools
that you want to be able to load together. This can be useful for defining
different sets for different agents or different applications.
```yaml
kind: toolsets
name: my_first_toolset
tools:
- my_first_tool
- my_second_tool
---
kind: toolsets
name: my_second_toolset
tools:
- my_second_tool
- my_third_tool
```
You can load toolsets by name:
```python
# This will load all tools
all_tools = client.load_toolset()
# This will only load the tools listed in 'my_second_toolset'
my_second_toolset = client.load_toolset("my_second_toolset")
```
### Prompts
The `prompts` section of your `tools.yaml` defines the templates containing
structured messages and instructions for interacting with language models.
```yaml
kind: prompts
name: code_review
description: "Asks the LLM to analyze code quality and suggest improvements."
messages:
- content: "Please review the following code for quality, correctness, and potential improvements: \n\n{{.code}}"
arguments:
- name: "code"
description: "The code to review"
```
For more details on configuring different types of prompts, see the
[Prompts](../resources/prompts/).