Better Code Review Graph
Knowledge graph for efficient code reviews with advanced search and context resolution.
Better Code Review Graph
mcp-name: io.github.n24q02m/better-code-review-graph
Knowledge graph for token-efficient code reviews -- fixed search, configurable embeddings, qualified call resolution.
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Fork of code-review-graph with critical bug fixes, configurable embeddings, and production CI/CD. Parses your codebase with Tree-sitter, builds a structural graph of functions/classes/imports, and gives Claude (or any MCP client) precise context so it reads only what matters.
Features
| Feature | code-review-graph | better-code-review-graph |
|---|---|---|
| Multi-word search | Broken (literal substring) | AND-logic word splitting |
| callers_of/callees_of | Empty results (bare name targets) | Qualified name resolution + bare fallback |
| Embedding | sentence-transformers + torch (1.1 GB) | qwen3-embed ONNX + cloud (200 MB), dual-mode |
| Output size | Unbounded (500K+ chars) | Paginated (max_results, truncated flag) |
| Tool design | 9 individual tools | 6 tools: graph + query + review + config + setup + help |
| Plugin hooks | Invalid PostEdit/PostGit | Valid PostToolUse |
Setup
With AI Agent -- copy and send this to your AI agent:
Please set up better-code-review-graph for me. Follow this guide: https://raw.githubusercontent.com/n24q02m/better-code-review-graph/main/docs/setup-with-agent.md
Manual Setup -- follow docs/setup-manual.md
Tools
graph -- Graph lifecycle
Actions: build | update | stats | embed
| Action | Description |
|---|---|
build | Full or incremental graph build. Set full_rebuild=true to re-parse all files. |
update | Alias for build with full_rebuild=false (incremental). |
stats | Graph size, languages, node/edge breakdown, embedding count. |
embed | Compute vector embeddings for semantic search. Dual-mode: local ONNX or cloud. |
query -- Graph queries
Actions: query | search | impact | large_functions
| Action | Description |
|---|---|
query | Predefined pattern queries: callers_of, callees_of, imports_of, importers_of, children_of, tests_for, inheritors_of, file_summary. |
search | Search code entities by name/keyword or semantic similarity. |
impact | Blast radius of changed files. Auto-detects from git diff. Paginated with max_results. |
large_functions | Find functions/classes exceeding a line-count threshold. |
review -- Code review context
Token-optimized review context with structural summary, source snippets, and review guidance. Auto-detects changed files from git diff.
config -- Server configuration
Actions: status | set | cache_clear
| Action | Description |
|---|---|
status | Server info: version, graph path, node/edge counts, embedding backend. |
set | Update runtime settings (e.g., log_level). |
cache_clear | Remove all computed embeddings. |
setup -- Credential setup
Actions: status | start | skip | reset | complete
| Action | Description |
|---|---|
status | Show current credential state and setup URL. |
start | Start relay setup to configure API keys via browser. |
skip | Set local mode (skip relay permanently, use ONNX only). |
reset | Clear credentials and reset state. |
complete | Re-resolve credentials from environment variables. |
help -- Full documentation
Topics: graph | query | review | config
Returns complete documentation for each tool. Use when the compressed descriptions above are insufficient.
Security
- Graceful fallbacks -- Cloud embedding failure falls back to local ONNX
- Error handling -- Tools return error strings with fix suggestions, never crash
- Read-only mount -- Docker mode mounts repo as
:ro(read-only)
Build from Source
git clone https://github.com/n24q02m/better-code-review-graph
cd better-code-review-graph
uv sync --group dev
uv run pytest
uv run better-code-review-graph
Requirements: Python 3.13, uv
License
MIT -- See LICENSE.