{"repo":"0ximu/mu","free":true,"listed":false,"github":"https://github.com/0ximu/mu","clone":"git clone https://github.com/0ximu/mu.git","description":"MCP server that gives AI assistants deep codebase understanding. Semantic graph, BM25 search, impact analysis, code review.","language":"Rust","stars":69,"topics":["claude","code-intelligence","llm","mcp","mcp-server","rust","tree-sitter"],"license":"Apache-2.0","category":"mcp-servers","readme_excerpt":"MU Your codebase, understood. MCP server that gives AI assistants deep codebase understanding. Semantic graph, BM25 search, impact analysis, code review - all via tool calls. MU parses your codebase into a semantic graph stored in DuckDB, then exposes it through 13 MCP tools. Your AI assistant can search, navigate, review, and understand your code without stuffing the entire repo into a context window. Why LLMs choke on large codebases. Context windows are precious. 90% of code is boilerplate. You're feeding syntax when you need semantics. MU solves this by building a semantic graph - nodes (files, classes, functions), edges (imports, calls, inheritance, DI injection, message-bus publish/consume), importance scores, summaries - and letting your AI pull exactly what it needs. Does it actually beat grep? We measured. 12 real questions about a 920k-line C# microservices codebase, identical agents: one arm with only grep/read, one with only MU tools. Blind grading against source-verified ground truth. grep-only agent MU-only agent --- --- --- Correct answers 12/12 (one incomplete) 12/12 \"Top 5 riskiest methods in service X\" 10,421 tokens, 143s of hand-counting branches 659 tokens, 38s (precomputed complexity) \"What breaks if I change X?\" manual grep across 7 services one call : 55 direct dependents + message-bus consumers \"Map the services\" trusted a stale README (missed 5 services) 21/21 services from importance-ranked compress Full-flow questions (invoice validation) found 1 of","default_branch":null,"files":null,"tree":[],"storefront":"/r/0ximu","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/0ximu/mu/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}