HookChaos: Webhook Stress Tester CLI/Open-Sourced Project

HookChaos is an open-source, local-first CLI tool designed to stress-test webhook endpoints against common failure scenarios like duplicate events, out-of-order delivery, retries, and signature validation issues. It offers built-in scenario packs, custom pack creation, result replay, and Git-backed sharing. The project was born from real production incidents where webhook edge cases—never tested during development—caused bugs like duplicate order fulfillment.