Visual diff testing with Percy, Chromatic, BackstopJS - catch unintended UI changes
/plugin marketplace add jeremylongshore/claude-code-plugins-plus
/plugin install visual-regression-tester@jeremylongshore/claude-code-plugins-plus
Visual regression testing with screenshot comparison and diff analysis
Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Production-grade Bash scripting with defensive programming, POSIX compliance, and comprehensive testing
WCAG accessibility auditing, compliance validation, UI testing for screen readers, keyboard navigation, and inclusive design