chore(release): Update version to v1.4.342

fix: write CLI and streaming errors to stderr

.vscode/settings.json

@@ -96,6 +96,7 @@
 		"joho",
 		"kballard",
 		"Keploy",
+		"kimi",
 		"Kore",
 		"ksylvan",
 		"Langdock",
@@ -151,6 +152,7 @@
 		"Pulcherrima",
 		"pycache",
 		"pyperclip",
+		"qwen",
 		"readystream",
 		"restapi",
 		"rmextension",

CHANGELOG.md

@@ -1,5 +1,53 @@
 # Changelog
 
+## v1.4.342 (2025-12-13)
+
+### PR [#1866](https://github.com/danielmiessler/Fabric/pull/1866) by [ksylvan](https://github.com/ksylvan): fix: write CLI and streaming errors to stderr
+
+- Fix: write CLI and streaming errors to stderr
+- Route CLI execution errors to standard error output
+- Print Anthropic stream errors to stderr consistently
+- Add os import to support stderr error writes
+- Preserve help-output suppression and exit behavior
+
+## v1.4.341 (2025-12-10)
+
+### PR [#1860](https://github.com/danielmiessler/Fabric/pull/1860) by [ksylvan](https://github.com/ksylvan): fix: allow resetting required settings without validation errors
+
+- Fix: allow resetting required settings without validation errors
+- Update `Ask` to detect reset command and bypass validation
+- Refactor `OnAnswer` to support new `isReset` parameter logic
+- Invoke `ConfigureCustom` in `Setup` to avoid redundant re-validation
+- Add unit tests ensuring required fields can be reset
+
+## v1.4.340 (2025-12-08)
+
+### PR [#1856](https://github.com/danielmiessler/Fabric/pull/1856) by [ksylvan](https://github.com/ksylvan): Add support for new ClaudeHaiku 4.5 models
+
+- Add support for new ClaudeHaiku models in client
+- Add `ModelClaudeHaiku4_5` to supported models
+- Add `ModelClaudeHaiku4_5_20251001` to supported models
+
+## v1.4.339 (2025-12-08)
+
+### PR [#1855](https://github.com/danielmiessler/Fabric/pull/1855) by [ksylvan](https://github.com/ksylvan): feat: add image attachment support for Ollama vision models
+
+- Add multi-modal image support to Ollama client
+- Implement convertMessage to handle multi-content chat messages
+- Add loadImageBytes to fetch images from URLs
+- Support base64 data URLs for inline images
+- Handle HTTP image URLs with context propagation
+
+## v1.4.338 (2025-12-04)
+
+### PR [#1852](https://github.com/danielmiessler/Fabric/pull/1852) by [ksylvan](https://github.com/ksylvan): Add Abacus vendor for ChatLLM models with static model list
+
+- Add static model support and register Abacus provider
+- Detect modelsURL starting with 'static:' and route appropriately
+- Implement getStaticModels returning curated Abacus model list
+- Register Abacus provider with ModelsURL 'static:abacus'
+- Extend provider tests to include Abacus existence
+
 ## v1.4.337 (2025-12-04)
 
 ### PR [#1851](https://github.com/danielmiessler/Fabric/pull/1851) by [ksylvan](https://github.com/ksylvan): Add Z AI provider and glm model support

README.md

@@ -73,6 +73,8 @@ Below are the **new features and capabilities** we've added (newest first):
 
 ### Recent Major Features
 
+- [v1.4.338](https://github.com/danielmiessler/fabric/releases/tag/v1.4.338) (Dec 4, 2025) — Add Abacus vendor support for Chat-LLM
+  models (see [RouteLLM APIs](https://abacus.ai/app/route-llm-apis)).
 - [v1.4.337](https://github.com/danielmiessler/fabric/releases/tag/v1.4.337) (Dec 4, 2025) — Add "Z AI" vendor support. See the [Z AI overview](https://docs.z.ai/guides/overview/overview) page for more details.
 - [v1.4.334](https://github.com/danielmiessler/fabric/releases/tag/v1.4.334) (Nov 26, 2025) — **Claude Opus 4.5**: Updates the Anthropic SDK to the latest and adds the new [Claude Opus 4.5](https://www.anthropic.com/news/claude-opus-4-5) to the available models.
 - [v1.4.331](https://github.com/danielmiessler/fabric/releases/tag/v1.4.331) (Nov 23, 2025) — **Support for GitHub Models**: Adds support for using GitHub Models.

cmd/fabric/main.go

@@ -12,7 +12,7 @@ import (
 func main() {
 	err := cli.Cli(version)
 	if err != nil && !flags.WroteHelp(err) {
-		fmt.Printf("%s\n", err)
+		fmt.Fprintf(os.Stderr, "%s\n", err)
 		os.Exit(1)
 	}
 }

cmd/fabric/version.go

@@ -1,3 +1,3 @@
 package main
 
-var version = "v1.4.337"
+var version = "v1.4.342"

internal/plugins/ai/anthropic/anthropic.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"net/http"
+	"os"
 	"strconv"
 	"strings"
 
@@ -52,6 +53,8 @@ func NewClient() (ret *Client) {
 		string(anthropic.ModelClaudeSonnet4_5_20250929),
 		string(anthropic.ModelClaudeOpus4_5_20251101),
 		string(anthropic.ModelClaudeOpus4_5),
+		string(anthropic.ModelClaudeHaiku4_5),
+		string(anthropic.ModelClaudeHaiku4_5_20251001),
 	}
 
 	ret.modelBetas = map[string][]string{
@@ -214,7 +217,7 @@ func (an *Client) SendStream(
 	}
 
 	if stream.Err() != nil {
-		fmt.Printf("Messages stream error: %v\n", stream.Err())
+		fmt.Fprintf(os.Stderr, "Messages stream error: %v\n", stream.Err())
 	}
 	close(channel)
 	return

internal/plugins/ai/ollama/ollama.go

@@ -2,7 +2,9 @@ package ollama
 
 import (
 	"context"
+	"encoding/base64"
 	"fmt"
+	"io"
 	"net/http"
 	"net/url"
 	"os"
@@ -10,11 +12,10 @@ import (
 	"time"
 
 	"github.com/danielmiessler/fabric/internal/chat"
-	ollamaapi "github.com/ollama/ollama/api"
-	"github.com/samber/lo"
-
 	"github.com/danielmiessler/fabric/internal/domain"
+	debuglog "github.com/danielmiessler/fabric/internal/log"
 	"github.com/danielmiessler/fabric/internal/plugins"
+	ollamaapi "github.com/ollama/ollama/api"
 )
 
 const defaultBaseUrl = "http://localhost:11434"
@@ -48,6 +49,7 @@ type Client struct {
 	apiUrl         *url.URL
 	client         *ollamaapi.Client
 	ApiHttpTimeout *plugins.SetupQuestion
+	httpClient     *http.Client
 }
 
 type transport_sec struct {
@@ -84,7 +86,8 @@ func (o *Client) configure() (err error) {
 		}
 	}
 
-	o.client = ollamaapi.NewClient(o.apiUrl, &http.Client{Timeout: timeout, Transport: &transport_sec{underlyingTransport: http.DefaultTransport, ApiKey: o.ApiKey}})
+	o.httpClient = &http.Client{Timeout: timeout, Transport: &transport_sec{underlyingTransport: http.DefaultTransport, ApiKey: o.ApiKey}}
+	o.client = ollamaapi.NewClient(o.apiUrl, o.httpClient)
 
 	return
 }
@@ -104,15 +107,18 @@ func (o *Client) ListModels() (ret []string, err error) {
 }
 
 func (o *Client) SendStream(msgs []*chat.ChatCompletionMessage, opts *domain.ChatOptions, channel chan string) (err error) {
-	req := o.createChatRequest(msgs, opts)
+	ctx := context.Background()
+
+	var req ollamaapi.ChatRequest
+	if req, err = o.createChatRequest(ctx, msgs, opts); err != nil {
+		return
+	}
 
 	respFunc := func(resp ollamaapi.ChatResponse) (streamErr error) {
 		channel <- resp.Message.Content
 		return
 	}
 
-	ctx := context.Background()
-
 	if err = o.client.Chat(ctx, &req, respFunc); err != nil {
 		return
 	}
@@ -124,7 +130,10 @@ func (o *Client) SendStream(msgs []*chat.ChatCompletionMessage, opts *domain.Cha
 func (o *Client) Send(ctx context.Context, msgs []*chat.ChatCompletionMessage, opts *domain.ChatOptions) (ret string, err error) {
 	bf := false
 
-	req := o.createChatRequest(msgs, opts)
+	var req ollamaapi.ChatRequest
+	if req, err = o.createChatRequest(ctx, msgs, opts); err != nil {
+		return
+	}
 	req.Stream = &bf
 
 	respFunc := func(resp ollamaapi.ChatResponse) (streamErr error) {
@@ -133,15 +142,18 @@ func (o *Client) Send(ctx context.Context, msgs []*chat.ChatCompletionMessage, o
 	}
 
 	if err = o.client.Chat(ctx, &req, respFunc); err != nil {
-		fmt.Printf("FRED --> %s\n", err)
+		debuglog.Debug(debuglog.Basic, "Ollama chat request failed: %v\n", err)
 	}
 	return
 }
 
-func (o *Client) createChatRequest(msgs []*chat.ChatCompletionMessage, opts *domain.ChatOptions) (ret ollamaapi.ChatRequest) {
-	messages := lo.Map(msgs, func(message *chat.ChatCompletionMessage, _ int) (ret ollamaapi.Message) {
-		return ollamaapi.Message{Role: message.Role, Content: message.Content}
-	})
+func (o *Client) createChatRequest(ctx context.Context, msgs []*chat.ChatCompletionMessage, opts *domain.ChatOptions) (ret ollamaapi.ChatRequest, err error) {
+	messages := make([]ollamaapi.Message, len(msgs))
+	for i, message := range msgs {
+		if messages[i], err = o.convertMessage(ctx, message); err != nil {
+			return
+		}
+	}
 
 	options := map[string]interface{}{
 		"temperature":       opts.Temperature,
@@ -162,6 +174,77 @@ func (o *Client) createChatRequest(msgs []*chat.ChatCompletionMessage, opts *dom
 	return
 }
 
+func (o *Client) convertMessage(ctx context.Context, message *chat.ChatCompletionMessage) (ret ollamaapi.Message, err error) {
+	ret = ollamaapi.Message{Role: message.Role, Content: message.Content}
+
+	if len(message.MultiContent) == 0 {
+		return
+	}
+
+	// Pre-allocate with capacity hint
+	textParts := make([]string, 0, len(message.MultiContent))
+	if strings.TrimSpace(ret.Content) != "" {
+		textParts = append(textParts, strings.TrimSpace(ret.Content))
+	}
+
+	for _, part := range message.MultiContent {
+		switch part.Type {
+		case chat.ChatMessagePartTypeText:
+			if trimmed := strings.TrimSpace(part.Text); trimmed != "" {
+				textParts = append(textParts, trimmed)
+			}
+		case chat.ChatMessagePartTypeImageURL:
+			// Nil guard
+			if part.ImageURL == nil || part.ImageURL.URL == "" {
+				continue
+			}
+			var img []byte
+			if img, err = o.loadImageBytes(ctx, part.ImageURL.URL); err != nil {
+				return
+			}
+			ret.Images = append(ret.Images, ollamaapi.ImageData(img))
+		}
+	}
+
+	ret.Content = strings.Join(textParts, "\n")
+	return
+}
+
+func (o *Client) loadImageBytes(ctx context.Context, imageURL string) (ret []byte, err error) {
+	// Handle data URLs (base64 encoded)
+	if strings.HasPrefix(imageURL, "data:") {
+		parts := strings.SplitN(imageURL, ",", 2)
+		if len(parts) != 2 {
+			err = fmt.Errorf("invalid data URL format")
+			return
+		}
+		if ret, err = base64.StdEncoding.DecodeString(parts[1]); err != nil {
+			err = fmt.Errorf("failed to decode data URL: %w", err)
+		}
+		return
+	}
+
+	// Handle HTTP URLs with context
+	var req *http.Request
+	if req, err = http.NewRequestWithContext(ctx, http.MethodGet, imageURL, nil); err != nil {
+		return
+	}
+
+	var resp *http.Response
+	if resp, err = o.httpClient.Do(req); err != nil {
+		return
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= http.StatusBadRequest {
+		err = fmt.Errorf("failed to fetch image %s: %s", imageURL, resp.Status)
+		return
+	}
+
+	ret, err = io.ReadAll(resp.Body)
+	return
+}
+
 func (o *Client) NeedsRawMode(modelName string) bool {
 	ollamaSearchStrings := []string{
 		"llama3",

internal/plugins/ai/openai_compatible/providers_config.go

@@ -2,6 +2,7 @@ package openai_compatible
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"strings"
 
@@ -38,8 +39,12 @@ func NewClient(providerConfig ProviderConfig) *Client {
 
 // ListModels overrides the default ListModels to handle different response formats
 func (c *Client) ListModels() ([]string, error) {
-	// If a custom models URL is provided, use direct fetch with that URL
+	// If a custom models URL is provided, handle it
 	if c.modelsURL != "" {
+		// Check for static model list
+		if strings.HasPrefix(c.modelsURL, "static:") {
+			return c.getStaticModels(c.modelsURL)
+		}
 		// TODO: Handle context properly in Fabric by accepting and propagating a context.Context
 		// instead of creating a new one here.
 		return openai.FetchModelsDirectly(context.Background(), c.modelsURL, c.Client.ApiKey.Value, c.GetName())
@@ -55,6 +60,68 @@ func (c *Client) ListModels() ([]string, error) {
 	return c.DirectlyGetModels(context.Background())
 }
 
+// getStaticModels returns a predefined list of models for providers that don't support model discovery
+func (c *Client) getStaticModels(modelsKey string) ([]string, error) {
+	switch modelsKey {
+	case "static:abacus":
+		return []string{
+			"route-llm",
+			"gpt-4o-2024-11-20",
+			"gpt-4o-mini",
+			"o4-mini",
+			"o3-pro",
+			"o3",
+			"o3-mini",
+			"gpt-4.1",
+			"gpt-4.1-mini",
+			"gpt-4.1-nano",
+			"gpt-5",
+			"gpt-5-mini",
+			"gpt-5-nano",
+			"gpt-5.1",
+			"gpt-5.1-chat-latest",
+			"openai/gpt-oss-120b",
+			"claude-3-7-sonnet-20250219",
+			"claude-sonnet-4-20250514",
+			"claude-opus-4-20250514",
+			"claude-opus-4-1-20250805",
+			"claude-sonnet-4-5-20250929",
+			"claude-haiku-4-5-20251001",
+			"claude-opus-4-5-20251101",
+			"meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8",
+			"meta-llama/Meta-Llama-3.1-405B-Instruct-Turbo",
+			"meta-llama/Meta-Llama-3.1-70B-Instruct",
+			"meta-llama/Meta-Llama-3.1-8B-Instruct",
+			"llama-3.3-70b-versatile",
+			"gemini-2.0-flash-001",
+			"gemini-2.0-pro-exp-02-05",
+			"gemini-2.5-pro",
+			"gemini-2.5-flash",
+			"gemini-3-pro-preview",
+			"qwen-2.5-coder-32b",
+			"Qwen/Qwen2.5-72B-Instruct",
+			"Qwen/QwQ-32B",
+			"Qwen/Qwen3-235B-A22B-Instruct-2507",
+			"Qwen/Qwen3-32B",
+			"qwen/qwen3-coder-480b-a35b-instruct",
+			"qwen/qwen3-Max",
+			"grok-4-0709",
+			"grok-4-fast-non-reasoning",
+			"grok-4-1-fast-non-reasoning",
+			"grok-code-fast-1",
+			"kimi-k2-turbo-preview",
+			"deepseek/deepseek-v3.1",
+			"deepseek-ai/DeepSeek-V3.1-Terminus",
+			"deepseek-ai/DeepSeek-R1",
+			"deepseek-ai/DeepSeek-V3.2",
+			"zai-org/glm-4.5",
+			"zai-org/glm-4.6",
+		}, nil
+	default:
+		return nil, fmt.Errorf("unknown static model list: %s", modelsKey)
+	}
+}
+
 // ProviderMap is a map of provider name to ProviderConfig for O(1) lookup
 var ProviderMap = map[string]ProviderConfig{
 	"AIML": {
@@ -128,6 +195,12 @@ var ProviderMap = map[string]ProviderConfig{
 		BaseURL:             "https://api.z.ai/api/paas/v4",
 		ImplementsResponses: false,
 	},
+	"Abacus": {
+		Name:                "Abacus",
+		BaseURL:             "https://routellm.abacus.ai/v1/",
+		ModelsURL:           "static:abacus", // Special marker for static model list
+		ImplementsResponses: false,
+	},
 }
 
 // GetProviderByName returns the provider configuration for a given name with O(1) lookup

internal/plugins/ai/openai_compatible/providers_config_test.go

@@ -25,6 +25,11 @@ func TestCreateClient(t *testing.T) {
 			provider: "Z AI",
 			exists:   true,
 		},
+		{
+			name:     "Existing provider - Abacus",
+			provider: "Abacus",
+			exists:   true,
+		},
 		{
 			name:     "Non-existent provider",
 			provider: "NonExistent",

internal/plugins/plugin.go

@@ -92,7 +92,11 @@ func (o *PluginBase) Setup() (err error) {
 		return
 	}
 
-	err = o.Configure()
+	// After Setup, run ConfigureCustom if present, but skip re-validation
+	// since Ask() already validated user input (or allowed explicit reset)
+	if o.ConfigureCustom != nil {
+		err = o.ConfigureCustom()
+	}
 	return
 }
 
@@ -198,16 +202,21 @@ func (o *SetupQuestion) Ask(label string) (err error) {
 	var answer string
 	fmt.Scanln(&answer)
 	answer = strings.TrimRight(answer, "\n")
+	isReset := strings.ToLower(answer) == AnswerReset
 	if answer == "" {
 		answer = o.Value
-	} else if strings.ToLower(answer) == AnswerReset {
+	} else if isReset {
 		answer = ""
 	}
-	err = o.OnAnswer(answer)
+	err = o.OnAnswerWithReset(answer, isReset)
 	return
 }
 
 func (o *SetupQuestion) OnAnswer(answer string) (err error) {
+	return o.OnAnswerWithReset(answer, false)
+}
+
+func (o *SetupQuestion) OnAnswerWithReset(answer string, isReset bool) (err error) {
 	if o.Type == SettingTypeBool {
 		if answer == "" {
 			o.Value = ""
@@ -226,6 +235,11 @@ func (o *SetupQuestion) OnAnswer(answer string) (err error) {
 			return
 		}
 	}
+	// Skip validation when explicitly resetting a value - the user intentionally
+	// wants to clear the value even if it's required
+	if isReset {
+		return nil
+	}
 	err = o.IsValidErr()
 	return
 }

internal/plugins/plugin_test.go

@@ -116,6 +116,91 @@ func TestSetupQuestion_Ask(t *testing.T) {
 	assert.Equal(t, "user_value", setting.Value)
 }
 
+func TestSetupQuestion_Ask_Reset(t *testing.T) {
+	// Test that resetting a required field doesn't produce an error
+	setting := &Setting{
+		EnvVariable: "TEST_RESET_SETTING",
+		Value:       "existing_value",
+		Required:    true,
+	}
+	question := &SetupQuestion{
+		Setting:  setting,
+		Question: "Enter test setting:",
+	}
+	input := "reset\n"
+	fmtInput := captureInput(input)
+	defer fmtInput()
+	err := question.Ask("TestConfigurable")
+	// Should NOT return an error even though the field is required
+	assert.NoError(t, err)
+	// Value should be cleared
+	assert.Equal(t, "", setting.Value)
+}
+
+func TestSetupQuestion_OnAnswerWithReset(t *testing.T) {
+	tests := []struct {
+		name        string
+		setting     *Setting
+		answer      string
+		isReset     bool
+		expectError bool
+		expectValue string
+	}{
+		{
+			name: "reset required field should not error",
+			setting: &Setting{
+				EnvVariable: "TEST_SETTING",
+				Value:       "old_value",
+				Required:    true,
+			},
+			answer:      "",
+			isReset:     true,
+			expectError: false,
+			expectValue: "",
+		},
+		{
+			name: "empty answer on required field should error",
+			setting: &Setting{
+				EnvVariable: "TEST_SETTING",
+				Value:       "",
+				Required:    true,
+			},
+			answer:      "",
+			isReset:     false,
+			expectError: true,
+			expectValue: "",
+		},
+		{
+			name: "valid answer on required field should not error",
+			setting: &Setting{
+				EnvVariable: "TEST_SETTING",
+				Value:       "",
+				Required:    true,
+			},
+			answer:      "new_value",
+			isReset:     false,
+			expectError: false,
+			expectValue: "new_value",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			question := &SetupQuestion{
+				Setting:  tt.setting,
+				Question: "Test question",
+			}
+			err := question.OnAnswerWithReset(tt.answer, tt.isReset)
+			if tt.expectError {
+				assert.Error(t, err)
+			} else {
+				assert.NoError(t, err)
+			}
+			assert.Equal(t, tt.expectValue, tt.setting.Value)
+		})
+	}
+}
+
 func TestSettings_IsConfigured(t *testing.T) {
 	settings := Settings{
 		{EnvVariable: "TEST_SETTING1", Value: "value1", Required: true},

nix/pkgs/fabric/version.nix

@@ -1 +1 @@
-"1.4.337"
+"1.4.342"