I built a GitHub App that auto-generates adversarial tests for AI-written code — here's how it works (opens in new tab)

Six months ago I kept reading the same story. Developer uses Cursor or Claude Code to ship a feature. CI goes green. Merge lands. Three days later, production breaks in a way no test caught. The failure mode isn't the model being wrong. It's that the tests being run were never designed for what an AI agent might do. The agent writes code that's syntactically correct, type-safe, and passes every existing check — but introduces a semantic error nobody scripted a test for. So I built Khwand: a G...