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yangweijieMCP SERVER

CGM MCP Server

Repository-level code analysis as a graph — structure extraction, related-entity lookup and packaged context — with or without an LLM in the loop.

by yangweijie ↗Code Intelligence & Repository IndexingCommunity

LABSCO SUMMARY

Code structure first, model second.

The half that needs no API key is the half most people will use: point it at a repository and get entities, related code and packaged context that any model or editor can read. The LLM pipeline sits on top for issue-to-patch work, and that is where a provider and a cost enter. Choosing the model-agnostic tools here is a real option, not a degraded mode.

What it is

An MCP implementation of CodeFuse-CGM (Code Graph Model). It runs in two modes: model-agnostic tools that extract code structure with no API key at all, and a full pipeline — rewriter, retriever, reranker, reader — that uses an LLM to turn an issue description into a patch.

What you get

  • Repository structure and code entities for a path and query, with an analysis scope and a cap on files touched — cgm_analyze_repository
  • Detailed content and analysis for a specific list of files — cgm_get_file_content
  • Entities related to one named entity, optionally narrowed to particular relation types — cgm_find_related_code
  • Context packaged for another model to consume, as structured, markdown or prompt — cgm_extract_context
  • The LLM pipeline: submit an issue for resolution, analysis, bug fixing or feature implementation, then poll it — cgm_process_issue, cgm_get_task_status
  • Health, cache statistics, performance and GPU state as resources — cgm://health, cgm://cache, cgm://performance, cgm://gpu
  • A call to release GPU memory when a long session has filled it — clear_gpu_cache

Requirements

Python 3.8+. Clone, pip install -r requirements.txt, then start with python main.py. The model-agnostic analysis tools need no API keys. For the full pipeline choose a provider: cloud via CGM_LLM_PROVIDER, CGM_LLM_API_KEY and CGM_LLM_MODEL, local via ./scripts/start_local.sh --provider ollama --model deepseek-coder:6.7b, or LM Studio via --provider lmstudio. GPU acceleration is optional — Apple Silicon MPS is detected automatically, NVIDIA and AMD need the matching PyTorch build, and CPU is the fallback.

Setup effort

Build from source — git clone https://github.com/yangweijie/cgm-mcp.git