Codegraph
Turns your codebase into a queryable semantic graph across 38 languages and exposes it through 42 MCP tools. Ask for callers, callees, impact analysis, circular dependencies, or AI-curated context for a specific task (explain, modify, debug, test). It runs locally via tree-sitter, includes a persistent memory layer for cross-session notes, and ships with a VS Code extension plus GitHub Action for PR reviews. The `--graph-only` flag skips embeddings for fast CI runs. Includes agent rule files that teach Claude, Cursor, and Windsurf to query the graph before falling back to grep. Useful when you need structured code intelligence instead of full-text search, especially for refactoring, onboarding, or understanding call chains in large polyglot repos.
- GitHub stars
- 144
- tools
- 42
- transport
- STDIO
- last updated
- Oct 6, 2026
Tools
42 toolsPublic tool metadata for what this MCP can expose to an agent.
get_ai_contextPrimary context tool. Intent-aware (explain/modify/debug/test) with token budgeting. Returns source, related symbols, imports, siblings, debug hints.
Primary context tool. Intent-aware (explain/modify/debug/test) with token budgeting. Returns source, related symbols, imports, siblings, debug hints.
No parameter schema in public metadata yet.
get_edit_contextEverything needed before editing: source + callers + tests + memories + git history
Everything needed before editing: source + callers + tests + memories + git history
No parameter schema in public metadata yet.
get_curated_contextCross-codebase context for a natural language query ("how does auth work?")
Cross-codebase context for a natural language query ("how does auth work?")
No parameter schema in public metadata yet.
analyze_impactBlast radius prediction — what breaks if you modify, delete, or rename
Blast radius prediction — what breaks if you modify, delete, or rename
No parameter schema in public metadata yet.
analyze_complexityCyclomatic complexity with breakdown (branches, loops, nesting, exceptions, early returns)
Cyclomatic complexity with breakdown (branches, loops, nesting, exceptions, early returns)
No parameter schema in public metadata yet.
find_circular_depsDetect circular import/dependency chains across files
Detect circular import/dependency chains across files
No parameter schema in public metadata yet.
find_hot_pathsMost-called functions ranked by transitive caller count
Most-called functions ranked by transitive caller count
No parameter schema in public metadata yet.
find_dead_importsFind unused imports — modules imported but never referenced
Find unused imports — modules imported but never referenced
No parameter schema in public metadata yet.
get_module_summaryHigh-level summary of a directory: file count, functions, language breakdown, top complex functions
High-level summary of a directory: file count, functions, language breakdown, top complex functions
No parameter schema in public metadata yet.
search_by_patternRegex search across function bodies, signatures, names, and docstrings
Regex search across function bodies, signatures, names, and docstrings
No parameter schema in public metadata yet.
search_by_errorFind functions that throw, catch, or handle specific error types
Find functions that throw, catch, or handle specific error types
No parameter schema in public metadata yet.
symbol_searchFind symbols by name or natural language (hybrid BM25 + semantic search)
Find symbols by name or natural language (hybrid BM25 + semantic search)
No parameter schema in public metadata yet.
get_callersWho calls this? (with transitive depth)
Who calls this? (with transitive depth)
No parameter schema in public metadata yet.
get_calleesWhat does it call? (with transitive depth)
What does it call? (with transitive depth)
No parameter schema in public metadata yet.
get_detailed_symbolFull symbol info: source, callers, callees, complexity
Full symbol info: source, callers, callees, complexity
No parameter schema in public metadata yet.
get_symbol_infoQuick metadata: signature, visibility, kind
Quick metadata: signature, visibility, kind
No parameter schema in public metadata yet.
get_dependency_graphFile/module import relationships with depth control
File/module import relationships with depth control
No parameter schema in public metadata yet.
get_call_graphFunction call chains (callers and callees)
Function call chains (callers and callees)
No parameter schema in public metadata yet.
find_by_importsFind files importing a module
Find files importing a module
No parameter schema in public metadata yet.
find_by_signatureSearch by param count, return type, modifiers
Search by param count, return type, modifiers
No parameter schema in public metadata yet.
find_entry_pointsMain functions, HTTP handlers, CLI commands, event handlers
Main functions, HTTP handlers, CLI commands, event handlers
No parameter schema in public metadata yet.
find_implementorsFind all functions registered as ops struct callbacks
Find all functions registered as ops struct callbacks
No parameter schema in public metadata yet.
find_related_testsTests that exercise a given function
Tests that exercise a given function
No parameter schema in public metadata yet.
traverse_graphCustom graph traversal with edge/node type filters
Custom graph traversal with edge/node type filters
No parameter schema in public metadata yet.
reindex_workspaceFull or incremental workspace reindex
Full or incremental workspace reindex
No parameter schema in public metadata yet.
index_filesAdd/update specific files without full reindex
Add/update specific files without full reindex
No parameter schema in public metadata yet.
index_directoryAdd directory to graph alongside existing data
Add directory to graph alongside existing data
No parameter schema in public metadata yet.
memory_storeStore memories (BM25 + semantic)
Store memories (BM25 + semantic)
No parameter schema in public metadata yet.
memory_getRetrieve memories
Retrieve memories
No parameter schema in public metadata yet.
memory_searchSearch memories (BM25 + semantic)
Search memories (BM25 + semantic)
No parameter schema in public metadata yet.
memory_contextGet memories relevant to a file/function
Get memories relevant to a file/function
No parameter schema in public metadata yet.
memory_listBrowse memories
Browse memories
No parameter schema in public metadata yet.
memory_invalidateRetire memories
Retire memories
No parameter schema in public metadata yet.
memory_statsMonitor memories
Monitor memories
No parameter schema in public metadata yet.
pr_contextOne-call PR review: blast radius, test coverage and gaps, affected modules, change classification, stale-doc warnings, complexity, commit-message hint, suggested reviewers
One-call PR review: blast radius, test coverage and gaps, affected modules, change classification, stale-doc warnings, complexity, commit-message hint, suggested reviewers
No parameter schema in public metadata yet.
index_markdownIndex a local .md file into the persistent docs store with heading-tree chunking and leaf-node embeddings
Index a local .md file into the persistent docs store with heading-tree chunking and leaf-node embeddings
No parameter schema in public metadata yet.
search_docsSemantic search over indexed docs, returning matching sections with heading-path breadcrumbs
Semantic search over indexed docs, returning matching sections with heading-path breadcrumbs
No parameter schema in public metadata yet.
list_doc_sourcesList all indexed source files
List all indexed source files
No parameter schema in public metadata yet.
remove_doc_sourceRemove all indexed chunks from a source file
Remove all indexed chunks from a source file
No parameter schema in public metadata yet.
verify_designCross-reference doc claims vs code graph (forward, reverse, or both)
Cross-reference doc claims vs code graph (forward, reverse, or both)
No parameter schema in public metadata yet.
design_gapsFind identifiers described in docs that don't exist in code yet
Find identifiers described in docs that don't exist in code yet
No parameter schema in public metadata yet.
generate_architecture_docAuto-generate a structured ARCHITECTURE.md from the live code graph
Auto-generate a structured ARCHITECTURE.md from the live code graph
No parameter schema in public metadata yet.
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CodeGraph
Cross-language code intelligence for AI agents and developers.
CodeGraph builds a semantic graph of your codebase — functions, classes, imports, call chains — and exposes it through 42 MCP tools, a VS Code extension, a JetBrains IDE plugin, and a persistent memory layer. Parses 38 languages via tree-sitter. AI agents get structured code understanding instead of grepping through files.
Quick Start
MCP Server (Claude Code, Cursor, any MCP client)
Add to ~/.claude.json (or your MCP client config):
{
"mcpServers": {
"codegraph": {
"command": "/path/to/codegraph-server",
"args": ["--mcp"]
}
}
}
The server indexes the current working directory automatically.
VS Code Extension
Install the VSIX:
code --install-extension codegraph-0.21.0.vsix
Details
- Repository
- github.com/codegraph-ai/codegraph
- Category
- AI & LLM Tools
- Package
@astudioplus/codegraph-mcp- Transport
- STDIO
- Registry
- MCP registry, active
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