LLM Builds IndexedDB Implementation Passing Tests

An experiment used an LLM in a 'Ralph' agent loop to implement the IndexedDB API in TypeScript on Node.js over SQLite, targeting Web Platform Tests (WPT) compliance. The multi-agent run completed in a few hours and achieved roughly a 95% pass rate—1,208 of 1,272 targeted tests—demonstrating acceptance-test-driven LLM workflows can produce spec-compliant implementations.