Add Crush CLI support (v0.4.9)

Crush CLI Integration:
- Add Crush agent to registry (charmbracelet/crush)
- Create pkg/adapters/crush.go with full Agent implementation
- Install via Homebrew (macOS) or go install (Linux/Windows)
- Terminal-first AI coding assistant with beautiful TUI
- Multi-provider support (Anthropic, OpenAI, Groq, Gemini, etc.)

Implementation:
- Follows established stdin-based message passing pattern
- Three-part prompt structure (identity/role, task, conversation)
- Message filtering to prevent echo in multi-agent conversations
- Output cleaning for system messages and prompts
- Health check via --version flag
- Version detection via GitHub releases API
- Supports both SendMessage and StreamMessage modes

Testing:
- Updated registry test to expect 14 agents
- All tests pass with race detector

Documentation:
- Updated README with Crush in supported agents list
- Added comprehensive v0.4.9 release notes to CHANGELOG
- Installation instructions for all platforms

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: kevinelliott

CHANGELOG.md

@@ -7,6 +7,41 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [v0.4.9] - 2025-10-25
+
+### Added
+- **Crush CLI Agent Support (Charmbracelet)**
+  - New adapter for Crush CLI (`crush` command)
+  - Terminal-first AI coding assistant with beautiful TUI
+  - Installation via Homebrew: `brew install charmbracelet/tap/crush`
+  - Installation via Go: `go install github.com/charmbracelet/crush@latest`
+  - Supports stdin-based message passing
+  - Complete integration with standardized three-part prompt system
+  - Comprehensive logging and error handling
+  - Registry entry with install/uninstall/upgrade commands for all platforms
+  - Multi-provider authentication support:
+    - Anthropic (ANTHROPIC_API_KEY)
+    - OpenAI (OPENAI_API_KEY)
+    - Groq (GROQ_API_KEY)
+    - Google Gemini (GEMINI_API_KEY)
+    - AWS Bedrock, Azure OpenAI, and others
+
+### Technical Details
+- Implements all required Agent interface methods
+- Follows established patterns from Claude and Groq adapters
+- Message filtering to prevent echo in multi-agent conversations
+- Output cleaning to remove system messages and prompts
+- Health check via `--version` flag
+- Version detection via GitHub releases API (charmbracelet/crush)
+- Supports both SendMessage and StreamMessage modes
+- Current latest version: v0.12.3
+
+### Benefits
+- Adds another high-quality terminal-first agent option
+- Multi-provider support allows flexibility in LLM choice
+- Beautiful TUI experience from Charmbracelet
+- MCP (Model Context Protocol) and LSP integration support
+
 ## [v0.4.8] - 2025-10-25
 
 ### Fixed

README.md

@@ -30,6 +30,7 @@ All agents now use a **standardized interaction pattern** with structured three-
 - ✅ **Claude** (Anthropic) - Advanced reasoning and coding
 - ✅ **Codex** (OpenAI) - Code generation specialist (non-interactive exec mode)
 - ✅ **Copilot** (GitHub) - Terminal-based coding agent with multiple model support
+- ✅ **Crush** (Charm/Charmbracelet) - Terminal-first AI coding assistant with multi-provider support
 - ✅ **Cursor** (Cursor AI) - IDE-integrated AI assistance
 - ✅ **Factory** (Factory.ai) - Agent-native software development with Droid (non-interactive exec mode)
 - ✅ **Gemini** (Google) - Multimodal understanding
@@ -96,27 +97,24 @@ All agents now use a **standardized interaction pattern** with structured three-
 
 See [CHANGELOG.md](CHANGELOG.md) for detailed version history and release notes.
 
-**Latest Release**: v0.4.8 - Fixed GitHub API rate limiting
+**Latest Release**: v0.4.9 - Crush CLI support
 
-**What's New in v0.4.8**:
+**What's New in v0.4.9**:
 
-🚀 **Fixed GitHub API Rate Limiting**:
-- **PyPI Integration for Kimi**: Now uses PyPI API instead of GitHub releases
-  - No more 403 rate limit errors
-  - Fetches from `https://pypi.org/pypi/kimi-cli/json`
-  - More reliable and aligns with actual installation method (uv/pip)
-- **npm Registry for Qwen**: Uses npm registry instead of GitHub releases
-  - Direct API access without rate limiting
-  - Package: `@qwen-code/qwen-code`
-  - Aligns with actual installation method
-- **Benefits**: Faster, more reliable version checking with no rate limits
+💘 **Crush CLI Support (Charmbracelet)**:
+- **New Agent Adapter**: Full support for Charm's Crush CLI
+  - Install: `brew install charmbracelet/tap/crush` (macOS) or `go install github.com/charmbracelet/crush@latest`
+  - Terminal-first AI coding assistant with beautiful TUI
+  - Multi-provider support (Anthropic, OpenAI, Groq, Gemini, and more)
+  - Supports stdin-based message passing
+  - Complete integration with AgentPipe's multi-agent conversation system
 
-**Previous Release - v0.4.7** (2025-10-25): Improved Kimi version detection
-- Initial attempt using GitHub releases (now superseded by PyPI)
+**Previous Release - v0.4.8** (2025-10-25): Fixed GitHub API rate limiting
+- PyPI integration for Kimi, npm registry for Qwen
+- No more 403 rate limit errors
 
+**Previous Release - v0.4.7** (2025-10-25): Improved Kimi version detection
 **Previous Release - v0.4.6** (2025-10-25): Groq Code CLI support
-- Full support for Groq Code CLI powered by Groq LPUs
-- Fast inference with temperature configuration support
 - Dedicated security workflows (Trivy and CodeQL)
 - Enhanced README badges with downloads and stars metrics
 - Fixed Windows test failures for platform-specific installations

internal/registry/agents.json

@@ -96,6 +96,30 @@
       },
       "requires_auth": true
     },
+    {
+      "name": "Crush",
+      "command": "crush",
+      "description": "Charm's Crush CLI - Terminal-first AI coding assistant",
+      "docs": "https://github.com/charmbracelet/crush",
+      "package_manager": "github",
+      "package_name": "charmbracelet/crush",
+      "install": {
+        "darwin": "brew install charmbracelet/tap/crush",
+        "linux": "go install github.com/charmbracelet/crush@latest",
+        "windows": "go install github.com/charmbracelet/crush@latest"
+      },
+      "uninstall": {
+        "darwin": "brew uninstall crush",
+        "linux": "See https://github.com/charmbracelet/crush for uninstall instructions",
+        "windows": "See https://github.com/charmbracelet/crush for uninstall instructions"
+      },
+      "upgrade": {
+        "darwin": "brew upgrade crush",
+        "linux": "go install github.com/charmbracelet/crush@latest",
+        "windows": "go install github.com/charmbracelet/crush@latest"
+      },
+      "requires_auth": true
+    },
     {
       "name": "Cursor",
       "command": "cursor-agent",

internal/registry/registry_test.go

@@ -28,7 +28,7 @@ func TestGetAll(t *testing.T) {
 	}
 
 	// Verify we have the expected agents
-	expectedCount := 13 // Amp, Claude, Codex, Copilot, Cursor, Factory, Gemini, Groq, Kimi, OpenCode, Qoder, Qwen, Ollama
+	expectedCount := 14 // Amp, Claude, Codex, Copilot, Crush, Cursor, Factory, Gemini, Groq, Kimi, OpenCode, Qoder, Qwen, Ollama
 	if len(agents) != expectedCount {
 		t.Errorf("Expected %d agents, got %d", expectedCount, len(agents))
 	}