Code Graph MCP

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作者：sdsrss

AST knowledge graph MCP server for Claude Code — semantic search, call graph traversal, HTTP route tracing, impact analysis. Auto-indexes 10 languages via Tree-sitter.

astcall-graphclaude-codeclaude-code-plugincode-navigationknowledge-graphmcprustsemantic-searchtree-sitter

安装

$claude mcp add code-graph-mcp -- npx -y @sdsrs/code-graph

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工具（7 个）

ast_search

Search AST nodes by text and/or structural filters (type, return type, params)

find_references

Find all references to a symbol (callers, importers, inheritors, implementors, value/type references). Supports compact mode

get_ast_node

One symbol with signature, body and relations. includeimpact adds the blast radius, includesimilar embedding-similar nodes, includereferences callers/callees. Supports compact mode

get_call_graph

Trace upstream/downstream call chains for a function. Pass routepath='GET /api/x' to trace an HTTP route → handler → downstream instead

module_overview

Symbols in a directory or file, grouped by type and caller count. includedead lists unreferenced symbols under the path; includedeps adds the file dependency graph (single-file paths only)

project_map

Full project architecture: modules, dependencies, entry points, hot functions. includecentrality adds architectural chokepoints

semantic_code_search

Hybrid BM25 + vector search (RRF) for AST nodes. Supports compact mode