What problem does it solve? APIs often ship without thorough validation, leading to security vulnerabilities, performance regressions, and broken integrations reaching production. This Skill provides a structured methodology for comprehensive API testing covering functional, security, and performance dimensions. ## Core Features & Use Cases - Functional Test Automation: Build automated test suites targeting 95%+ endpoint coverage with frameworks like Playwright, REST Assured, and k6. - Security Validation: Test authentication, authorization, input sanitization, rate limiting, and the OWASP API Security Top 10 vulnerabilities. - Performance Testing: Execute load, stress, and concurrency tests against SLA targets such as sub-200ms 95th percentile response times. - Use Case: Before releasing a new microservice, use this Skill to generate a full test suite validating every endpoint, run load tests at 10x normal traffic, and produce a go/no-go release readiness report. ## Quick Start Ask the agent to design and run a comprehensive functional, security, and performance test plan for your REST API endpoints and produce a release readiness report.