Atlas helps developers and AI coding assistants understand any codebase with confidence. Find symbols, trace callers and dependencies, assess change impact, and retrieve focused context with exact file-and-line citations. Results are deterministic and reproducible. Atlas runs locally as a single binary with SQLite, CLI, MCP, and HTTP; your code never leaves your machine. Published benchmarks show 36× fewer context tokens and 17× faster retrieval than the tested graph baseline.