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go doc mcp server
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godoc-mcp is a Model Context Protocol (MCP) server that provides efficient access to Go documentation. It helps LLMs understand Go projects by providing direct access to package documentation without needing to read entire source files. godoc-mcp can vastly improve the performance of using LLMs to develop in Go by substantially reducing the number of tokens needed to understand and make use of Go packages.
go install github.com/mrjoshuak/godoc-mcp@latest
In a sentence: godoc-mcp provides a more token efficient way for LLMs to understand Go projects.
Traditional file-reading approaches require LLMs to process entire source files often many files to understand a single package. godoc-mcp provides several advantages:
godoc-mcp a fast and efficient tool for Go developmentWith godoc-mcp, a LLM can get precisely the information it needs without having to read entire source files. Here are the different levels of detail that an LLM can get.
This makes godoc-mcp an essential tool for Go developers using LLMs by enabling LLMs to understand significantly more, and in more detail, about the context than previously possible in any programming language.
The server will:
go doc from the working directory)In addition to providing documentation while working on coding tasks. godoc-mcp can also be used to explore Go projects and packages. Here are some examples for general prompting:
“I’m looking at a Go project at /path/to/some/project. What packages does it contain and what do they do?”
“What interfaces does the io package provide? I’m particularly interested in anything related to reading.”
“I need to implement the io.Reader interface. Show me its documentation and any related types I should know about.”
“Show me the documentation for the Resource type in the /path/to/some/project. I need to understand how to create and use it.”
“I’m in /path/to/some/project which uses github.com/gorilla/mux. Show me the documentation for the Router type.”
“What methods are available on the http.Request type? I’m working with standard library HTTP handlers.”
“Explain how to configure the Server type in the /path/to/project/server package.”
“I’m in a new Go project directory and see multiple packages. Can you show me what each one does?”
To add to the Claude desktop app:
{
"mcpServers": {
# other MCP servers ...
"godoc": {
"command": "/path/to/godoc-mcp",
"args": [],
"env": {
"GOPATH": "/path/to/go",
"GOMODCACHE": "/path/to/go/pkg/mod"
}
}
}
}
When connected to an MCP-capable LLM (like Claude), godoc-mcp provides the get_doc tool with the following parameters:
path: Path to the Go package or file (import path or file path)target (optional): Specific symbol to document (function, type, etc.)cmd_flags (optional): Additional go doc command flagsworking_dir (optional): Working directory for module-aware documentation (if not provided, a temporary project will be created automatically)Advanced cmd_flags values that an LLM can leverage:
-all: Show all documentation for package, excluding unexported symbols-u: Show unexported symbols-src: Show the source code instead of documentationThis project is licensed under the MIT License - see the LICENSE file for details.
go doc mcp server
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