codex-mcp-tool
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| CODEX_CLI_PATH | No | Path to the Codex CLI executable, e.g., /opt/homebrew/bin/codex | |
| CODEX_MAX_SESSIONS | No | Maximum number of sessions to keep (default: 50) | 50 |
| CODEX_SESSION_TTL_MS | No | Session time-to-live in milliseconds (default: 24h) | 24h |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {} |
| logging | {} |
| prompts | {} |
| completions | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| ask-codex | Execute Codex CLI with file analysis (@syntax), skills ($syntax), model selection, and safety controls. Supports changeMode. |
| batch-codex | Delegate multiple atomic tasks to Codex for batch processing. Ideal for repetitive operations, mass refactoring, and automated code transformations |
| review-changes | Run a code review against the current repository using Codex CLI native review subcommand |
| pingC | Echo |
| helpC | receive help information |
| versionA | Display version and system information |
| brainstormA | Generate creative ideas using structured frameworks with domain context and feasibility analysis. |
| fetch-chunkA | Retrieves cached chunks from a changeMode response. Use this to get subsequent chunks after receiving a partial changeMode response. |
| timeout-testA | Test timeout prevention by running for a specified duration |
| list-sessions | List all active conversation sessions with metadata, or manage sessions |
| health | Check Codex CLI and session health status |
| list-skillsA | Discover available Codex skills from .agents/skills/ directory |
| do-actA | Execute task via Codex, verify with shell command, auto-fix on failure. Act-Check-Fix loop. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
| ask-codex | Execute Codex CLI with optional changeMode |
| batch-codex | Execute multiple atomic Codex tasks in batch mode for efficient automation |
| review-changes | Execute Codex's built-in code review on current changes |
| ping | Echo test message with structured response. |
| help | receive help information |
| version | Get version information for Codex CLI and MCP server |
| brainstorm | Create structured brainstorming with chosen methodology and analysis |
| fetch-chunk | Fetch the next chunk of a response |
| timeout-test | Test the timeout prevention system by running a long operation |
| list-sessions | View and manage active Codex sessions |
| health | Diagnose Codex CLI installation, authentication, and session health |
| list-skills | List available Codex skills in the current project |
| do-act | Execute task with verification-driven retry |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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