It is for launching the configured Codex MCP server.

It connects Codex through an MCP server, although the input does not describe the server’s individual tools.

codex — MCP server by nekohasekai/my-codex-plugin

codex

codex is an MCP server for Claude Code from nekohasekai/my-codex-plugin. Its token cost is not measured, scanned A, original, no licence file.

A local MCP server named codex, configured to start Codex with approvals disabled and unrestricted sandbox access. MCP is a protocol that lets software provide tools to an AI assistant.

In plain words

What is it for?: It is for launching the configured Codex MCP server.
Why use it?: It connects Codex through an MCP server, although the input does not describe the server’s individual tools.

Written for Claude Code: shipped in a Claude Code plugin. Also seen: listed in a Claude config.

Part of the my-codex-plugin plugin — 2 skills, 1 agent, 1 MCP server shipped together

Install with agentmods

npx agentmods add mcp/nekohasekai/my-codex-plugin/codex

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/nekohasekai/my-codex-plugin

Made for: Claude Code.

Or install my-codex-plugin, the plugin that ships this one along with the rest of its 2 skills, 1 agent, 1 MCP server.

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.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/nekohasekai/my-codex-plugin/codex/github.svg)](https://agentmods.dev/mcp/nekohasekai/my-codex-plugin/codex)

Your own site

<a href="https://agentmods.dev/mcp/nekohasekai/my-codex-plugin/codex"><img src="https://agentmods.dev/badge/mcp/nekohasekai/my-codex-plugin/codex/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/nekohasekai/my-codex-plugin/codex"><img src="https://agentmods.dev/badge/mcp/nekohasekai/my-codex-plugin/codex.svg" alt="Reviewed on agentmods" width="80" 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 unknown No closer match found in the catalogue.

Security

Grade A, and why

codex 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 1mo 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.

.mcp.json · 20 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

1mo ago Changed · +6 lines 6c1967661057
2mo ago First seen · 14 lines scan A d2e54add2e2f

Subscribe to this mod's changes

codex is an MCP server published in the GitHub repository nekohasekai/my-codex-plugin (22 stars, last pushed 1mo ago), with no licence file. 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.

claude-code-plugin

codex next to 6 mcp servers from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
codexnekohasekai/my-codex-plugin	MCP server	22	1mo ago	none	A	—	Claude Code
docs-langchainlangchain-ai/langchain	MCP server	149k	today	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
component-explorermicrosoft/vscode	MCP server	195k	today	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
codex_message_boardopenai/codex	MCP server	134k	today	Apache-2.0	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
reamorluto/rea	MCP server	447k	today	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
reference-langchainlangchain-ai/langchain	MCP server	149k	today	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
playwright-testmicrosoft/playwright	MCP server	100k	today	Apache-2.0	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode