io.github.xieyuschen/gopls-mcp

Official

by xieyuschen · Go

Semantic code analysis for Go using gopls - language-aware navigation, definitions, references

Provides semantic code analysis for Go with navigation and reference lookup.

Topics

ai-agentclaude-codegogolangmcp-servercodexgeministatic-analysis

README.md2 KBView on GitHub

gopls-mcp

Give your AI Agent the compiler's brain, not a text searcher.

Documentation: https://gopls-mcp.org

gopls-mcp delivers type-checker-level semantic analysis directly to your LLM. Unlike text search, it resolves Go's type system — interface satisfaction, cross-package identity, and shadowed scopes — with the same precision as the compiler.

Where it pays off most is on semantic tasks: finding all concrete types that implement an interface, tracing call hierarchies, and mapping package dependencies. A benchmark over 11 tasks shows gopls-mcp uses 2–4× fewer tool calls and finishes faster than grep-based navigation on those tasks. For simple same-file lookups, plain bash/grep remains equally effective and carries less overhead.

Install

Claude Code (plugin — recommended)

code

/plugin marketplace add https://github.com/xieyuschen/gopls-mcp.git
/plugin install gopls-mcp

The plugin automatically installs the binary and injects the routing skill — no manual setup required.

Codex (plugin — recommended)

bash

codex plugin marketplace add https://github.com/xieyuschen/gopls-mcp.git
codex plugin add gopls-mcp

Manual install (all clients)

Linux / macOS:

bash

curl -sSL https://gopls-mcp.org/install.sh | bash

Windows (PowerShell):

powershell

irm https://gopls-mcp.org/install.ps1 | iex

Then follow the per-client setup at https://gopls-mcp.org/quick-start.

Contribute

The project is actively developing, and feel free to raise PRs or issues if you find anything to improve. AI generated code will also be accepted but do remember to narrow the change to a specific feature for reviewer to quickly review them.

Disclaimer: gopls-mcp is a fork of gopls and is a community-driven project. It is not an official Go team product and is not affiliated with or endorsed by Google LLC. This project is licensed under the same BSD license as its upstream source.