What problem does it solve? APIs often ship without thorough validation, leading to security vulnerabilities, SLA violations, and integration failures in production. This Skill provides a structured methodology for testing APIs across functional, security, and performance dimensions before release. ## Core Features & Use Cases - Functional & Contract Testing: Builds automated test suites covering endpoint behavior, error handling, and backward compatibility across API versions. - Security Validation: Tests authentication, authorization, input sanitization, rate limiting, and the OWASP API Security Top 10 vulnerabilities. - Performance Testing: Executes load, stress, and concurrency tests against SLA targets such as sub-200ms 95th percentile response times. - Use Case: Before releasing a new user management API, use this Skill to generate a Playwright-based test suite that validates endpoint responses, rejects SQL injection attempts, enforces rate limits, and measures response times under 50 concurrent requests, producing a go/no-go release report. ## Quick Start Ask the agent to create a comprehensive test suite for your REST API covering functional, security, and performance scenarios with a final quality report.
