Building SQLite with a small swarm

A developer orchestrated Claude, Codex, and Gemini to collaboratively build a fully-functional SQLite-like database engine in Rust. The swarm produced 19,000 lines of code with 282 passing unit tests, implementing parser, planner, executor, storage, transactions, and recovery systems. The experiment required extensive coordination through git locks and shared documentation, with 54.5% of commits dedicated to managing parallel agent workflows rather than actual coding.