AI coding tools write fast but never clean up. After a few sessions your
project is full of dead functions, duplicated logic, and Phase 2 comments.
Fossil scans your codebase and finds what's dead. Not grep — actual call graph analysis across 15 languages.
It's also an MCP server. Connect it once and your AI agent can clean up
after itself.
Written in Rust. Single binary. Zero config. Open source.
