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Language Server for Codex

Mcp-language-server gives MCP enabled clients access semantic tools like get definition, references, rename, and diagnostics.

Docs reviewedChecked 2026-09-20Runtime not tested

What it adds

mcp-language-server gives MCP enabled clients access semantic tools like get definition, references, rename, and diagnostics.

ailanguage-server-protocolmodel-context-protocol

Get set up

  1. Run the install command below to register the server with Codex.
  2. Restart Codex or start a new thread so the tools load.
Read the installation source

Before you install

    Compatibility & limitations

    Documented for ChatGPT desktop app, Codex CLI, Codex IDE extension

    Cursor: Not confirmed for Cursor.

      This listing is based on source documentation. We have not installed or runtime-tested this asset.

      How it fits together

      Requesting Code Review · SkillUse when completing tasks, implementing major features, or before merging to verify work meets requirements.Executing Plans · SkillUse when executing an implementation plan in the current session as the implementer yourself — your human partner chose inline execution, or no...Receiving Code Review · SkillUse when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires...Git · MCP serverA Model Context Protocol server for Git repository interaction and automation.Serena · MCP serverA powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent.GitMCP · MCP serverPut an end to code hallucinations! GitMCP is a free, open-source, remote MCP server for any GitHub project.

      Sources & provenance

      Reviewed 2026-09-20. Source revision: main (mutable; commit not pinned).