review-a11y — accessibility review of changed code

The review counterpart of the ultra11y skill: where ultra11y produces full audits and compliance deliverables, this skill reviews exactly the code under change — a diff, a branch, a PR — and reports like a code reviewer. Same division of labour: the deterministic, install-free engine bundled with this skill does the mechanical work (machine-checkable WCAG 2.2 AA non-conformities, each tied to a success criterion, cited file:line), and the AI agent adjudicates the judgment — refute false positives, decide alt relevance/link purpose/focus logic statically from the code, and route what needs a rendered DOM to scan. A human is at most optional oversight.

Engine resolution: every command below is node scripts/ultra11y.mjs … where scripts/ultra11y.mjs lives next to this SKILL.md (the engine ships inside the skill; no install, no key). Run it with the reviewed project as the working directory. In the ultra11y repository itself, the repo root's scripts/ultra11y.mjs is the same file. On Claude Code that path is ${CLAUDE_SKILL_DIR}/scripts/ultra11y.mjs; on Codex and OpenCode it is the skill directory the plugin installed. If neither resolves — a harness with no skill system — npx -y ultra11y <command> is the same engine. Per-harness deltas: references/harnesses.md in the ultra11y skill.