retellai-webhooks-events

Quick Review

The skill provides comprehensive technical guidance for implementing Retell AI webhook handling with signature verification, event processing, and idempotency. The description clearly communicates when to use this skill. However, novelty is low—webhook signature validation is a standard pattern that a capable CLI agent could implement with available documentation. The code examples are well-structured and production-ready (HMAC verification, timing-safe comparison, replay protection), but this represents established best practices rather than complex domain-specific logic. The skill would be more valuable if Retell AI had unusual signature schemes or complex event choreography, but the implementation shown is straightforward HTTP + HMAC-SHA256 validation that most modern LLMs can generate reliably.