Recent Go MCP Server

Provides Go language updates and best practices in a structured Markdown format for LLM coding agents.

An MCP (Model Context Protocol) server that provides comprehensive Go language updates and best practices to LLM coding agents in structured Markdown format. This helps agents avoid using outdated Go patterns and leverage modern language features efficiently across 12 Go versions.

NOTICEThis repository is experimental and for personal use. (Of course, anyone can use this repository.) LLM coding agent is fully utilized to write code, test and data about Go's features in each release. Some mistakes would be contained. I hope any issues or PRs to improve this repository.

NOTICEThe output of this tool might be oversize with some MCP hosts like Claude Code. I will update this tool with pagenation feature soon.

- 🔄Comprehensive Version Coverage: Supports Go 1.13 through 1.24 (12 versions)
- 📦Package-Specific Filtering: Get updates for specific standard library packages (net/http, slices, maps, log/slog, etc.)
- 📚Rich Information: Includes examples, impact assessment, and upgrade recommendations
- 📝Markdown Format: Structured output optimized for LLM consumption with ~70% size reduction
- 🚀Single Binary: All release data embedded using go:embed for easy deployment

{ "mcpServers": { "recent-go-mcp": { "command": "go", "args":[ "run", "github.com/tenkoh/recent-go-mcp@latest" ] } } }

You can install the command usinggo install, then register the executable binary's path to MCP configuration.

The server uses stdio transport and follows the MCP specification. It can be integrated with any MCP-compatible LLM client.

The server implements the Model Context Protocol and can be used with any MCP-compatible client.

Get information about Go language updates and best practices.

- version(required): Go version to check updates from (supported: "1.13" through "1.24")
- package(optional): Specific standard library package to filter updates (e.g., "net/http", "slices", "maps", "log/slog")

{ "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "go-updates", "arguments": { "version": "1.21" } } }

Get slices package specific updates from Go 1.20

{ "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "go-updates", "arguments": { "version": "1.20", "package": "slices" } } }

The tool returns structured Markdown output optimized for LLM consumption:

- Hierarchical Structure: Clear headings (#,##,###) for easy navigation
- Summary Section: Overview of changes and their impact
- Version-Specific Sections: Chronologically organized language and library changes
- Code Highlighting: Function names in`backticksand examples ingo code blocks
- Enhanced Readability:Boldemphasis for important items and proper Markdown formatting

# Run all tests (includes MCP protocol tests) go test ./... # Run MCP server integration tests specifically go test -v -run TestMCPServer # Build the server go build -o recent-go-mcp # Test manually with JSON-RPC echo '{"jsonrpc": "2.0", "id": 1, "method": "tools/list"}' | ./recent-go-mcp echo '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "go-updates", "arguments": {"version": "1.24"}}}' | ./recent-go-mcp`

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