Test Automator

Drives strict red-green-refactor: writes a failing test, runs it, implements just enough to pass, refactors. Use when you want to enforce TDD on a new feature.

Designs RESTful APIs, microservice boundaries, and database schemas. Use for new backend services or when refactoring cross-service contracts.

Profiles hot paths, spots N+1 queries, suggests caching layers, and fixes render bottlenecks. Use when a page or endpoint is slow and root cause is unknown.

Ships React/Next.js UI components with accessibility, state management, and performance baked in. Use when building or refactoring UI code.

Reviews code for OWASP-style vulnerabilities: injection, auth flaws, secret leaks, unsafe deserialization. Use before merging any code that touches auth, inputs, or external systems.

Designs multi-region cloud topologies on AWS/GCP/Azure — VPCs, load balancers, IAM, cost tradeoffs. Use when moving off a single-region monolith or planning a migration.