feat: Add OpenAI Codex CLI support #37
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- Add 'codex' to AGENT_TYPE options in ServerConfig.ts - Implement Codex command execution in AgentExecutor.ts - Uses `codex exec --json` command format - Add Codex output parser in StreamProcessor.ts - Detects Codex format via thread.started event - Accumulates agent_message items - Completes on turn.completed event - Add behavior-focused tests for Codex output parsing - Update README.md with Codex documentation - Bump version to 0.4.0 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
The cwd parameter is now required to ensure consistent behavior across all CLI backends. This prevents issues with Codex CLI which requires execution within a trusted directory (git repository). Changes: - Update inputSchema to include cwd in required array - Add validation for cwd parameter (non-empty, max length, no path traversal) - Update RunAgentParams interface to make cwd non-optional - Fix all tests to provide cwd parameter BREAKING CHANGE: cwd parameter is now required when calling run_agent tool 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
… injection Update prompt description to clarify that only the user's direct request content should be passed, not meta-instructions like "call the agent". This helps MCP clients generate cleaner prompts. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
Help users understand that agent requests should include what they want done, not just which agent to use. Vague requests like "use the agent" without a task lead to poor results. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
Replace Japanese strings in StreamProcessor tests with English equivalents for consistency and international readability. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
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Summary
This PR adds support for OpenAI Codex CLI as a fourth execution engine alongside Cursor, Claude, and Gemini.
Changes
codextoAGENT_TYPEoptionscodex exec --jsonformatthread.startedeventagent_messageitemsturn.completedeventcwdparameter required (see Breaking Change below)Codex Output Format
Codex uses a different output structure than other CLIs:
{"type":"thread.started","thread_id":"..."} {"type":"turn.started"} {"type":"item.completed","item":{"type":"reasoning","text":"..."}} {"type":"item.completed","item":{"type":"agent_message","text":"..."}} {"type":"turn.completed","usage":{...}}Usage
{ "env": { "AGENTS_DIR": "/path/to/agents", "AGENT_TYPE": "codex" } }cwdparameter is now required when calling therun_agenttool.This change ensures consistent behavior across all CLI backends. Codex CLI requires execution within a trusted directory (git repository), and relying on
process.cwd()was unreliable as it depends on where the MCP server was started.MCP clients must now explicitly pass the
cwdparameter:{ "agent": "my-agent", "prompt": "Do something", "cwd": "/path/to/working/directory" }Test Plan
🤖 Generated with Claude Code