Coding style standards, security guidelines, and accessibility requirements. Use when (1) Writing new code, (2) Reviewing code for style/security, (3) Implementing UI/UX features, (4) Addressing security concerns, (5) Ensuring accessibility compliance. Covers naming conventions, formatting, security best practices (no secrets/PII), accessibility standards (semantic HTML, keyboard nav), and responsive design.
See references/coding-style.md for detailed style guide, formatting rules, comment standards.
See references/security-checklist.md for security validation checklist, threat modeling, PII handling.
See references/accessibility-standards.md for WCAG compliance, semantic HTML patterns, keyboard nav testing.