Provides Claude Code with instant, semantic awareness of entire codebases by building and ranking a symbol graph.
Nexus is a semantic codebase graph engine that supercharges Claude Code, granting it instant, comprehensive awareness of your entire project without manual context pasting. It scans projects with tree-sitter, constructs a detailed symbol graph, and intelligently ranks files using a fusion of BM25F, PageRank, RRF, and recency, ensuring Claude always starts a session with the most relevant code. This approach dramatically reduces context noise, with benchmarks showing over 93% median context reduction compared to naive grep, leading to highly efficient and accurate LLM-assisted coding sessions.
