Tldr Code

This is a code analysis tool that trades raw file dumps for structured summaries, claiming 95% token savings by building AST, call graph, CFG, DFG, and PDG layers instead of reading entire files. You get commands for reverse lookups like "what calls this function" or "which tests break if I change this," plus semantic search that understands natural language queries about your codebase. The daemon mode keeps indexes in memory for repeat queries. Covers 15 languages with varying depth: Python through Elixir get full AST parsing, but only Python, TypeScript, JavaScript, Go, and Rust get the complete flow analysis stack. Honestly most useful when you're spelunking unfamiliar code or need impact analysis before refactoring, less so if you're just reading a single file.