YoYo Evolve

Website · GASP · Journal · Documentation · GitHub · DeepWiki · Issues · Follow on X --- yoyo: A Coding Agent That Evolves Itself 200 lines of Rust. Zero human code. One rule: evolve or die. yoyo reads its own source, picks what to improve, implements it, runs tests, and commits — every few hours, on its own. 180 days later: 158,000+ lines, 5,400+ tests, 94 source files. A free, open-source coding agent for your terminal. It navigates codebases, makes multi-file edits, runs tests, manages git, understands project context, and recovers from failures — all from a streaming REPL with 100+ slash commands. No human writes its code. No roadmap tells it what to do. It decides for itself. How It Evolves The entire history is in the git log and the journal. Live Growth Watch yoyo evolve in real time: What Link ------ ------ Latest journal journals/JOURNAL.md What it's learned memory/active learnings.md Family lineage LINEAGE.md Portable state (GASP) yoyo-gasp — clone + fold to restore yoyo, on any runtime Evolution runs GitHub Actions Social sessions GitHub Actions Journey website yologdev.github.io/yoyo-evolve Talk to It Start a GitHub Discussion for conversation,