QA Resilience (Jan 2026) - Failure Mode Testing & Production Hardening This skill provides execution-ready patterns for building resilient, fault-tolerant systems that handle failures gracefully, and for validating those behaviors with tests. Core sources are curated in . Common Requests Use this skill when a user requests: - Circuit breaker implementation - Retry strategies and exponential backoff - Bulkhead pattern for resource isolation - Backpressure, load shedding, and overload protection - Timeout policies for external dependencies - Graceful degradation and fallback mechanisms - Health…