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Audits and fixes web accessibility against WCAG 2.2 AA. Use when conducting a11y audits, fixing WCAG violations, implementing accessible components, reviewing UI for ADA/Section 508/EAA compliance, or writing accessibility reports.

Project directory structure and important files reference. Use when locating where code, config, tests, or assets live in this repo, deciding where to put new files, or orienting in an unfamiliar part of the codebase.

React maintenance conventions for reducing redundancy and drift. Use when refactoring React/TypeScript components, removing duplicate code, keeping shared patterns consistent, or reviewing src/**/*.{ts,tsx} for maintainability.

Comprehensive reference for the Standard American Yellow Card (SAYC) contract bridge bidding system, including hand evaluation, all opening bids, responses, rebids, slam bidding, competitive auctions, conventions (Stayman, transfers, Blackwood/RKC, Jacoby 2NT, Michaels, unusual 2NT, negative doubles, Bergen, splinters, and more), defense to opponents' conventions, and opening leads and signals. Use this skill WHENEVER the user asks anything about bridge bidding, what to bid with a given hand, what a bid or auction "means", how a convention works, opening leads, defensive signals, hand evaluation / point count, or anything related to a bridge bidding app, convention card, or SAYC. Trigger even if the user does not say "SAYC" explicitly — any contract-bridge bidding, auction, or convention question should consult this skill rather than answering from memory or searching the web.

Guidelines for continuously improving Cursor/Claude rules based on emerging code patterns and best practices. Use when noticing repeated patterns not yet captured by a rule, or when adding to / refining the rules in .cursor/rules.

Test generation standards and verification requirements for this repo. Use whenever writing, generating, or reviewing tests, or before declaring code complete to confirm tests and verification pass.