Enforce API contract governance, strict backward compatibility, schema validation, and standardized RFC 7807 error responses.
Enforce distributed systems resiliency, idempotency keys, transactional outbox pattern, circuit breakers, and deadlock-free concurrency.
Enforce zero-downtime database schema migrations, expand-contract patterns, concurrent indexing, and non-blocking table alterations.
Simplify over-engineered code while preserving exact behavior: flatten unnecessary abstractions, apply early-return guard clauses, and eliminate indirection.
Audit and optimize web performance and runtime efficiency: Core Web Vitals (LCP, INP, CLS), lazy loading, tree-shaking, and bundle size reduction.
Cut token consumption by 60%+ using terse, high-density telegraphic responses ("Mouth smaller, not brain smaller") while keeping technical code and commands 100% byte-exact.
Use this skill when the user asks to modify or create UI components, apply CSS styling, manage frontend architectures, or debug visual issues.
Use this skill when the user asks to eliminate duplicate code, perform a DRY audit, or deduplicate functions and components across the codebase.