Add Support for Claude Opus 4.1 Model

.github/workflows/release.yml

@@ -27,8 +27,39 @@ jobs:
       - name: Run tests
         run: go test -v ./...
 
+  get_version:
+    name: Get version
+    runs-on: ubuntu-latest
+    outputs:
+      latest_tag: ${{ steps.get_version.outputs.latest_tag }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Get version from source
+        id: get_version
+        shell: bash
+        run: |
+          if [ ! -f "nix/pkgs/fabric/version.nix" ]; then
+            echo "Error: version.nix file not found"
+            exit 1
+          fi
+          version=$(cat nix/pkgs/fabric/version.nix | tr -d '"' | tr -cd '0-9.')
+          if [ -z "$version" ]; then
+            echo "Error: version is empty"
+            exit 1
+          fi
+          if ! echo "$version" | grep -E '^[0-9]+\.[0-9]+\.[0-9]+' > /dev/null; then
+            echo "Error: Invalid version format: $version"
+            exit 1
+          fi
+          echo "latest_tag=v$version" >> $GITHUB_OUTPUT
+
   build:
     name: Build binaries for Windows, macOS, and Linux
+    needs: [test, get_version]
     runs-on: ${{ matrix.os }}
     permissions:
       contents: write
@@ -51,25 +82,14 @@ jobs:
         with:
           go-version-file: ./go.mod
 
-      - name: Determine OS Name
-        id: os-name
-        run: |
-          if [ "${{ matrix.os }}" == "ubuntu-latest" ]; then
-            echo "OS=linux" >> $GITHUB_ENV
-          elif [ "${{ matrix.os }}" == "macos-latest" ]; then
-            echo "OS=darwin" >> $GITHUB_ENV
-          else
-            echo "OS=windows" >> $GITHUB_ENV
-          fi
-        shell: bash
-
       - name: Build binary on Linux and macOS
         if: matrix.os != 'windows-latest'
         env:
-          GOOS: ${{ env.OS }}
+          GOOS: ${{ matrix.os == 'ubuntu-latest' && 'linux' || 'darwin' }}
           GOARCH: ${{ matrix.arch }}
         run: |
-          go build -o fabric-${OS}-${{ matrix.arch }} ./cmd/fabric
+          OS_NAME="${{ matrix.os == 'ubuntu-latest' && 'linux' || 'darwin' }}"
+          go build -o fabric-${OS_NAME}-${{ matrix.arch }} ./cmd/fabric
 
       - name: Build binary on Windows
         if: matrix.os == 'windows-latest'
@@ -83,8 +103,8 @@ jobs:
         if: matrix.os != 'windows-latest'
         uses: actions/upload-artifact@v4
         with:
-          name: fabric-${OS}-${{ matrix.arch }}
-          path: fabric-${OS}-${{ matrix.arch }}
+          name: fabric-${{ matrix.os == 'ubuntu-latest' && 'linux' || 'darwin' }}-${{ matrix.arch }}
+          path: fabric-${{ matrix.os == 'ubuntu-latest' && 'linux' || 'darwin' }}-${{ matrix.arch }}
 
       - name: Upload build artifact
         if: matrix.os == 'windows-latest'
@@ -93,48 +113,49 @@ jobs:
           name: fabric-windows-${{ matrix.arch }}.exe
           path: fabric-windows-${{ matrix.arch }}.exe
 
-      - name: Get version from source
-        id: get_version
-        shell: bash
-        run: |
-          if [ ! -f "nix/pkgs/fabric/version.nix" ]; then
-            echo "Error: version.nix file not found"
-            exit 1
-          fi
-          version=$(cat nix/pkgs/fabric/version.nix | tr -d '"' | tr -cd '0-9.')
-          if [ -z "$version" ]; then
-            echo "Error: version is empty"
-            exit 1
-          fi
-          if ! echo "$version" | grep -E '^[0-9]+\.[0-9]+\.[0-9]+' > /dev/null; then
-            echo "Error: Invalid version format: $version"
-            exit 1
-          fi
-          echo "latest_tag=v$version" >> $GITHUB_ENV
-
       - name: Create release if it doesn't exist
         shell: bash
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          if ! gh release view ${{ env.latest_tag }} >/dev/null 2>&1; then
-            gh release create ${{ env.latest_tag }} --title "Release ${{ env.latest_tag }}" --notes "Automated release for ${{ env.latest_tag }}"
+          if ! gh release view ${{ needs.get_version.outputs.latest_tag }} >/dev/null 2>&1; then
+            gh release create ${{ needs.get_version.outputs.latest_tag }} --title "Release ${{ needs.get_version.outputs.latest_tag }}" --notes "Automated release for ${{ needs.get_version.outputs.latest_tag }}"
           else
-            echo "Release ${{ env.latest_tag }} already exists."
+            echo "Release ${{ needs.get_version.outputs.latest_tag }} already exists."
           fi
-          go run ./cmd/generate_changelog --sync-db
-          go run ./cmd/generate_changelog --release ${{ env.latest_tag }}
 
       - name: Upload release artifact
         if: matrix.os == 'windows-latest'
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          gh release upload ${{ env.latest_tag }} fabric-windows-${{ matrix.arch }}.exe
+          gh release upload ${{ needs.get_version.outputs.latest_tag }} fabric-windows-${{ matrix.arch }}.exe
 
       - name: Upload release artifact
         if: matrix.os != 'windows-latest'
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          gh release upload ${{ env.latest_tag }} fabric-${OS}-${{ matrix.arch }}
+          OS_NAME="${{ matrix.os == 'ubuntu-latest' && 'linux' || 'darwin' }}"
+          gh release upload ${{ needs.get_version.outputs.latest_tag }} fabric-${OS_NAME}-${{ matrix.arch }}
+
+  update_release_notes:
+    needs: [build, get_version]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: ./go.mod
+
+      - name: Update release description
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          go run ./cmd/generate_changelog --sync-db
+          go run ./cmd/generate_changelog --release ${{ needs.get_version.outputs.latest_tag }}

.vscode/settings.json

@@ -73,6 +73,7 @@
 		"jessevdk",
 		"Jina",
 		"joho",
+		"Keploy",
 		"Kore",
 		"ksylvan",
 		"Langdock",

cmd/generate_changelog/incoming/1673.txt

@@ -0,0 +1,7 @@
+### PR [#1673](https://github.com/danielmiessler/Fabric/pull/1673) by [ksylvan](https://github.com/ksylvan): Add Support for Claude Opus 4.1 Model
+
+- Add Claude Opus 4.1 model support
+- Upgrade anthropic-sdk-go from v1.4.0 to v1.7.0
+- Fix temperature/topP parameter conflict for models
+- Refactor release workflow to use shared version job and simplify OS handling
+- Improve chat parameter defaults handling with domain constants

go.mod

@@ -5,7 +5,7 @@ go 1.24.0
 toolchain go1.24.2
 
 require (
-	github.com/anthropics/anthropic-sdk-go v1.4.0
+	github.com/anthropics/anthropic-sdk-go v1.7.0
 	github.com/atotto/clipboard v0.1.4
 	github.com/aws/aws-sdk-go-v2 v1.36.4
 	github.com/aws/aws-sdk-go-v2/config v1.27.27

go.sum

@@ -19,6 +19,8 @@ github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFI
 github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
 github.com/anthropics/anthropic-sdk-go v1.4.0 h1:fU1jKxYbQdQDiEXCxeW5XZRIOwKevn/PMg8Ay1nnUx0=
 github.com/anthropics/anthropic-sdk-go v1.4.0/go.mod h1:AapDW22irxK2PSumZiQXYUFvsdQgkwIWlpESweWZI/c=
+github.com/anthropics/anthropic-sdk-go v1.7.0 h1:5iVf5fG/2gqVsOce8mq02r/WdgqpokM/8DXg2Ue6C9Y=
+github.com/anthropics/anthropic-sdk-go v1.7.0/go.mod h1:3qSNQ5NrAmjC8A2ykuruSQttfqfdEYNZY5o8c0XSHB8=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de h1:FxWPpzIjnTlhPwqqXc4/vE0f7GvRjuAsbW+HOIe8KnA=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de/go.mod h1:DCaWoUhZrYW9p1lxo/cm8EmUOOzAPSEZNGF2DK1dJgw=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=

internal/cli/flags.go

@@ -20,6 +20,8 @@ import (
 )
 
 // Flags create flags struct. the users flags go into this, this will be passed to the chat struct in cli
+// Chat parameter defaults set in the struct tags must match domain.Default* constants
+
 type Flags struct {
 	Pattern                         string            `short:"p" long:"pattern" yaml:"pattern" description:"Choose a pattern from the available patterns" default:""`
 	PatternVariables                map[string]string `short:"v" long:"variable" description:"Values for pattern variables, e.g. -v=#role:expert -v=#points:30"`

internal/domain/domain.go

@@ -4,6 +4,14 @@ import "github.com/danielmiessler/fabric/internal/chat"
 
 const ChatMessageRoleMeta = "meta"
 
+// Default values for chat options (must match cli/flags.go defaults)
+const (
+	DefaultTemperature      = 0.7
+	DefaultTopP             = 0.9
+	DefaultPresencePenalty  = 0.0
+	DefaultFrequencyPenalty = 0.0
+)
+
 type ChatRequest struct {
 	ContextName      string
 	SessionName      string

internal/plugins/ai/anthropic/anthropic.go

@@ -46,6 +46,7 @@ func NewClient() (ret *Client) {
 		string(anthropic.ModelClaude_3_5_Sonnet_20240620), string(anthropic.ModelClaude3OpusLatest),
 		string(anthropic.ModelClaude_3_Opus_20240229), string(anthropic.ModelClaude_3_Haiku_20240307),
 		string(anthropic.ModelClaudeOpus4_20250514), string(anthropic.ModelClaudeSonnet4_20250514),
+		string(anthropic.ModelClaudeOpus4_1_20250805),
 	}
 
 	return
@@ -181,11 +182,19 @@ func (an *Client) buildMessageParams(msgs []anthropic.MessageParam, opts *domain
 	params anthropic.MessageNewParams) {
 
 	params = anthropic.MessageNewParams{
-		Model:       anthropic.Model(opts.Model),
-		MaxTokens:   int64(an.maxTokens),
-		TopP:        anthropic.Opt(opts.TopP),
-		Temperature: anthropic.Opt(opts.Temperature),
-		Messages:    msgs,
+		Model:     anthropic.Model(opts.Model),
+		MaxTokens: int64(an.maxTokens),
+		Messages:  msgs,
+	}
+
+	// Only set one of Temperature or TopP as some models don't allow both
+	// Always set temperature to ensure consistent behavior (Anthropic default is 1.0, Fabric default is 0.7)
+	if opts.TopP != domain.DefaultTopP {
+		// User explicitly set TopP, so use that instead of temperature
+		params.TopP = anthropic.Opt(opts.TopP)
+	} else {
+		// Use temperature (always set to ensure Fabric's default of 0.7, not Anthropic's 1.0)
+		params.Temperature = anthropic.Opt(opts.Temperature)
 	}
 
 	// Add Claude Code spoofing system message for OAuth authentication

internal/plugins/ai/anthropic/anthropic_test.go

@@ -72,7 +72,8 @@ func TestBuildMessageParams_WithoutSearch(t *testing.T) {
 	client := NewClient()
 	opts := &domain.ChatOptions{
 		Model:       "claude-3-5-sonnet-latest",
-		Temperature: 0.7,
+		Temperature: 0.8,                // Use non-default value to ensure it gets set
+		TopP:        domain.DefaultTopP, // Use default TopP so temperature takes precedence
 		Search:      false,
 	}
 
@@ -90,6 +91,7 @@ func TestBuildMessageParams_WithoutSearch(t *testing.T) {
 		t.Errorf("Expected model %s, got %s", opts.Model, params.Model)
 	}
 
+	// When using non-default temperature, it should be set in params
 	if params.Temperature.Value != opts.Temperature {
 		t.Errorf("Expected temperature %f, got %f", opts.Temperature, params.Temperature.Value)
 	}
@@ -99,7 +101,8 @@ func TestBuildMessageParams_WithSearch(t *testing.T) {
 	client := NewClient()
 	opts := &domain.ChatOptions{
 		Model:       "claude-3-5-sonnet-latest",
-		Temperature: 0.7,
+		Temperature: 0.8,                // Use non-default value
+		TopP:        domain.DefaultTopP, // Use default TopP so temperature takes precedence
 		Search:      true,
 	}
 
@@ -135,7 +138,8 @@ func TestBuildMessageParams_WithSearchAndLocation(t *testing.T) {
 	client := NewClient()
 	opts := &domain.ChatOptions{
 		Model:          "claude-3-5-sonnet-latest",
-		Temperature:    0.7,
+		Temperature:    0.8,                // Use non-default value
+		TopP:           domain.DefaultTopP, // Use default TopP so temperature takes precedence
 		Search:         true,
 		SearchLocation: "America/Los_Angeles",
 	}
@@ -256,3 +260,59 @@ func TestCitationFormatting(t *testing.T) {
 		t.Errorf("Expected 2 unique citations, got %d", citationCount)
 	}
 }
+
+func TestBuildMessageParams_DefaultValues(t *testing.T) {
+	client := NewClient()
+
+	// Test with default temperature - should always set temperature unless TopP is explicitly set
+	opts := &domain.ChatOptions{
+		Model:       "claude-3-5-sonnet-latest",
+		Temperature: domain.DefaultTemperature, // 0.7 - should be set to override Anthropic's 1.0 default
+		TopP:        domain.DefaultTopP,        // 0.9 - default, so temperature takes precedence
+		Search:      false,
+	}
+
+	messages := []anthropic.MessageParam{
+		anthropic.NewUserMessage(anthropic.NewTextBlock("Hello")),
+	}
+
+	params := client.buildMessageParams(messages, opts)
+
+	// Temperature should be set when using default value to override Anthropic's 1.0 default
+	if params.Temperature.Value != opts.Temperature {
+		t.Errorf("Expected temperature %f, got %f", opts.Temperature, params.Temperature.Value)
+	}
+
+	// TopP should not be set when using default value (temperature takes precedence)
+	if params.TopP.Value != 0 {
+		t.Errorf("Expected TopP to not be set (0), but got %f", params.TopP.Value)
+	}
+}
+
+func TestBuildMessageParams_ExplicitTopP(t *testing.T) {
+	client := NewClient()
+
+	// Test with explicit TopP - should set TopP instead of temperature
+	opts := &domain.ChatOptions{
+		Model:       "claude-3-5-sonnet-latest",
+		Temperature: domain.DefaultTemperature, // 0.7 - ignored when TopP is explicitly set
+		TopP:        0.5,                       // Non-default - should be set
+		Search:      false,
+	}
+
+	messages := []anthropic.MessageParam{
+		anthropic.NewUserMessage(anthropic.NewTextBlock("Hello")),
+	}
+
+	params := client.buildMessageParams(messages, opts)
+
+	// Temperature should not be set when TopP is explicitly set
+	if params.Temperature.Value != 0 {
+		t.Errorf("Expected temperature to not be set (0), but got %f", params.Temperature.Value)
+	}
+
+	// TopP should be set when using non-default value
+	if params.TopP.Value != opts.TopP {
+		t.Errorf("Expected TopP %f, got %f", opts.TopP, params.TopP.Value)
+	}
+}