visual-regression

Visual diff testing with Percy, Chromatic, BackstopJS - catch unintended UI changes

Visual regression testing — compare Figma designs against live web pages with pixel-level diff and AI vision.

Browser automation and E2E testing with Playwright. Auto-detects dev servers, writes clean test scripts. Test pages, fill forms, take screenshots, check responsive design, validate UX, test login flows, check links, automate any browser task. Use for cross-browser testing, visual regression, API testing, component testing in TypeScript/JavaScript and Python projects.

Playwright E2E test debugging and interactive browser exploration. Runs tests with action capture (DOM snapshots, network, console, screenshots), diagnoses failures, and provides browser tools for navigating, clicking, and inspecting pages through ARIA snapshots.

Tools to maintain and improve CLAUDE.md files - audit quality, capture session learnings, and keep project memory current.

Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.