Add Mistral Vibe as experimental coding agent

.github/workflows/smoke-mistral.md

@@ -0,0 +1,96 @@
+---
+description: Smoke test workflow that validates Mistral Vibe engine functionality by reviewing recent PRs twice daily
+on: 
+  schedule: every 12h
+  workflow_dispatch:
+  pull_request:
+    types: [labeled]
+    names: ["smoke"]
+  reaction: "rocket"
+  status-comment: true
+permissions:
+  contents: read
+  issues: read
+  pull-requests: read
+name: Smoke Mistral
+engine: mistral-vibe
+strict: true
+imports:
+  - shared/gh.md
+  - shared/reporting.md
+network:
+  allowed:
+    - defaults
+    - github
+    - playwright
+tools:
+  cache-memory: true
+  github:
+  playwright:
+    allowed_domains:
+      - github.com
+  edit:
+  bash:
+    - "*"
+  serena:
+    languages:
+      go: {}
+runtimes:
+  go:
+    version: "1.25"
+sandbox:
+  mcp:
+    container: "ghcr.io/github/gh-aw-mcpg"
+safe-outputs:
+    add-comment:
+      hide-older-comments: true
+      max: 2
+    create-issue:
+      expires: 2h
+      close-older-issues: true
+    add-labels:
+      allowed: [smoke-mistral]
+    remove-labels:
+      allowed: [smoke]
+    unassign-from-user:
+      allowed: [githubactionagent]
+      max: 1
+    hide-comment:
+    messages:
+      footer: "> 🚀 *Powered by Mistral Vibe via [{workflow_name}]({run_url})*"
+      run-started: "🚀 Mistral Vibe awakening... [{workflow_name}]({run_url}) processing this {event_type}..."
+      run-success: "✨ Mission accomplished! [{workflow_name}]({run_url}) completed successfully. 🎯"
+      run-failure: "⚠️ Houston, we have a problem... [{workflow_name}]({run_url}) {status}. Retrying is recommended..."
+timeout-minutes: 15
+---
+
+# Smoke Test: Mistral Vibe Engine Validation
+
+**CRITICAL EFFICIENCY REQUIREMENTS:**
+- Keep ALL outputs extremely short and concise. Use single-line responses.
+- NO verbose explanations or unnecessary context.
+- Minimize file reading - only read what is absolutely necessary for the task.
+- Use targeted, specific queries - avoid broad searches or large data retrievals.
+
+## Test Requirements
+
+1. **GitHub MCP Testing**: Use GitHub MCP tools to fetch details of exactly 2 merged pull requests from ${{ github.repository }} (title and number only, no descriptions)
+2. **Serena MCP Testing**: 
+   - Use the Serena MCP server tool `activate_project` to initialize the workspace at `${{ github.workspace }}` and verify it succeeds (do NOT use bash to run go commands)
+   - After initialization, use the `find_symbol` tool to search for symbols and verify that at least 3 symbols are found in the results
+3. **Playwright Testing**: Use the playwright tools to navigate to https://github.com and verify the page title contains "GitHub" (do NOT try to install playwright - use the provided MCP tools)
+4. **File Writing Testing**: Create a test file `/tmp/gh-aw/agent/smoke-test-mistral-${{ github.run_id }}.txt` with content "Smoke test passed for Mistral Vibe at $(date)" (create the directory if it doesn't exist)
+5. **Bash Tool Testing**: Execute bash commands to verify file creation was successful (use `cat` to read the file back)
+6. **Build gh-aw**: Run `GOCACHE=/tmp/go-cache GOMODCACHE=/tmp/go-mod make build` to verify the agent can successfully build the gh-aw project (both caches must be set to /tmp because the default cache locations are not writable). If the command fails, mark this test as ❌ and report the failure.
+
+## Output
+
+Add a **very brief** comment (max 5-10 lines) to the current pull request with:
+- PR titles only (no descriptions)
+- ✅ or ❌ for each test result
+- Overall status: PASS or FAIL
+
+If all tests pass:
+- Use the `add_labels` safe-output tool to add the label `smoke-mistral` to the pull request
+- Use the `remove_labels` safe-output tool to remove the label `smoke` from the pull request
+- Use the `unassign_from_user` safe-output tool to unassign the user `githubactionagent` from the pull request (this is a fictitious user used for testing)

pkg/constants/constants.go

@@ -303,6 +303,9 @@ const (
 
 	// CopilotLLMGatewayPort is the port for the Copilot LLM gateway
 	CopilotLLMGatewayPort = 10002
+
+	// MistralVibeLLMGatewayPort is the port for the Mistral Vibe LLM gateway
+	MistralVibeLLMGatewayPort = 10004
 )
 
 // DefaultMCPRegistryURL is the default MCP registry URL.
@@ -373,6 +376,9 @@ const (
 // DefaultCodexVersion is the default version of the OpenAI Codex CLI
 const DefaultCodexVersion Version = "0.104.0"
 
+// DefaultMistralVibeVersion is the default version of the Mistral Vibe CLI
+const DefaultMistralVibeVersion Version = "2.1.0"
+
 // DefaultGitHubMCPServerVersion is the default version of the GitHub MCP server Docker image
 const DefaultGitHubMCPServerVersion Version = "v0.30.3"
 

pkg/parser/schemas/main_workflow_schema.json

@@ -6848,17 +6848,17 @@
       "oneOf": [
         {
           "type": "string",
-          "enum": ["claude", "codex", "copilot"],
-          "description": "Simple engine name: 'claude' (default, Claude Code), 'copilot' (GitHub Copilot CLI), or 'codex' (OpenAI Codex CLI)"
+          "enum": ["claude", "codex", "copilot", "mistral-vibe"],
+          "description": "Simple engine name: 'claude' (default, Claude Code), 'copilot' (GitHub Copilot CLI), 'codex' (OpenAI Codex CLI), or 'mistral-vibe' (Mistral Vibe CLI, experimental)"
         },
         {
           "type": "object",
           "description": "Extended engine configuration object with advanced options for model selection, turn limiting, environment variables, and custom steps",
           "properties": {
             "id": {
               "type": "string",
-              "enum": ["claude", "codex", "copilot"],
-              "description": "AI engine identifier: 'claude' (Claude Code), 'codex' (OpenAI Codex CLI), or 'copilot' (GitHub Copilot CLI)"
+              "enum": ["claude", "codex", "copilot", "mistral-vibe"],
+              "description": "AI engine identifier: 'claude' (Claude Code), 'codex' (OpenAI Codex CLI), 'copilot' (GitHub Copilot CLI), or 'mistral-vibe' (Mistral Vibe CLI, experimental)"
             },
             "version": {
               "type": ["string", "number"],

pkg/workflow/agentic_engine.go

@@ -325,6 +325,7 @@ func NewEngineRegistry() *EngineRegistry {
 	registry.Register(NewClaudeEngine())
 	registry.Register(NewCodexEngine())
 	registry.Register(NewCopilotEngine())
+	registry.Register(NewMistralVibeEngine())
 
 	agenticEngineLog.Printf("Registered %d engines", len(registry.engines))
 	return registry

pkg/workflow/agentic_engine_test.go

@@ -11,8 +11,8 @@ func TestEngineRegistry(t *testing.T) {
 
 	// Test that built-in engines are registered
 	supportedEngines := registry.GetSupportedEngines()
-	if len(supportedEngines) != 3 {
-		t.Errorf("Expected 3 supported engines, got %d", len(supportedEngines))
+	if len(supportedEngines) != 4 {
+		t.Errorf("Expected 4 supported engines, got %d", len(supportedEngines))
 	}
 
 	// Test getting engines by ID
@@ -32,6 +32,14 @@ func TestEngineRegistry(t *testing.T) {
 		t.Errorf("Expected codex engine ID, got '%s'", codexEngine.GetID())
 	}
 
+	mistralVibeEngine, err := registry.GetEngine("mistral-vibe")
+	if err != nil {
+		t.Errorf("Expected to find mistral-vibe engine, got error: %v", err)
+	}
+	if mistralVibeEngine.GetID() != "mistral-vibe" {
+		t.Errorf("Expected mistral-vibe engine ID, got '%s'", mistralVibeEngine.GetID())
+	}
+
 	// Test getting non-existent engine
 	_, err = registry.GetEngine("nonexistent")
 	if err == nil {
@@ -47,6 +55,10 @@ func TestEngineRegistry(t *testing.T) {
 		t.Error("Expected codex to be valid engine")
 	}
 
+	if !registry.IsValidEngine("mistral-vibe") {
+		t.Error("Expected mistral-vibe to be valid engine")
+	}
+
 	if registry.IsValidEngine("nonexistent") {
 		t.Error("Expected nonexistent to be invalid engine")
 	}