koda-ast

MCP server for tree-sitter AST analysis, part of the Koda AI coding agent.

Extracts function signatures, class definitions, and call graphs from source code using embedded tree-sitter parsers. Communicates via the Model Context Protocol over stdio.

Supported languages

• Rust: .rs
• Python: .py, .pyi, .pyw
• JavaScript/TypeScript: .js, .jsx, .mjs, .cjs, .ts, .mts, .cts, .tsx
• Go: .go
• Java: .java
• C/C++: .c, .h, .cpp, .cc, .cxx, .hpp, .hh
• Bash: .sh, .bash

Additional languages require adding tree-sitter grammars to this crate — see #298.

Auto-provisioning

Koda auto-installs and connects this server when AST analysis is needed. No manual setup required — just ask koda to analyze code structure.

Manual setup

cargo install koda-ast

Add to .mcp.json:

{
  "mcpServers": {
    "ast": {
      "command": "koda-ast",
      "args": []
    }
  }
}

Exposes one MCP tool: AstAnalysis — extracts functions, classes, and call graphs from source files.

License

MIT