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codex-mcp-tool

codex-mcp-tool is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from x51xxx/codex-mcp-tool. Its token cost is not measured, scanned A, original, MIT.

A local MCP server that connects AI assistants to the OpenAI Codex command-line tool for code analysis and review. It runs through the `@trishchuk/codex-mcp-tool` npm package and needs three environment variables.

In plain words
What is it for?
Running Codex-based code analysis and reviews from an AI assistant. Its setup also controls the working directory, session lifetime, and maximum number of sessions.
Why use it?
It lets an AI assistant use Codex for code work through a local connection, without manually switching between tools.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Written for no agent in particular: it speaks MCP, so any client can run it. Also seen: mentions Codex.

not rated 24repo +1 yesterday A scan tokens not measured original MIT

Good fit Running Codex-based code analysis and reviews from an AI assistant. Its setup also controls the working directory, session lifetime, and maximum number of sessions.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/x51xxx/codex-mcp-tool/codex-mcp-tool
View source ↗ x51xxx/codex-mcp-tool
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/x51xxx/codex-mcp-tool

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for codex-mcp-tool

README.md
[![agentmods](https://agentmods.dev/badge/mcp/x51xxx/codex-mcp-tool/codex-mcp-tool.svg)](https://agentmods.dev/mcp/x51xxx/codex-mcp-tool/codex-mcp-tool)
Your own site
<a href="https://agentmods.dev/mcp/x51xxx/codex-mcp-tool/codex-mcp-tool"><img src="https://agentmods.dev/badge/mcp/x51xxx/codex-mcp-tool/codex-mcp-tool.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

codex-mcp-tool scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

server.json · 14 lines

What it actually says

{
  "codex-mcp-tool": {
    "command": "npx",
    "args": [
      "-y",
      "@trishchuk/codex-mcp-tool"
    ],
    "env": {
      "CODEX_MCP_CWD": "",
      "CODEX_SESSION_TTL_MS": "",
      "CODEX_MAX_SESSIONS": ""
    }
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 14 lines scan A cccca43ca739

Subscribe to this mod's changes

codex-mcp-tool is an MCP server published in the GitHub repository x51xxx/codex-mcp-tool (24 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Building agentsCode reviewai-toolsclaudecodexcursormcp
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