Conducts a technical audit of UI health, covering accessibility, performance, and responsiveness.

Install

mkdir -p .claude/skills/audit && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/9524" && unzip -o skill.zip -d .claude/skills/audit && rm skill.zip

Installs to .claude/skills/audit

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Technical UI audit — a11y, performance, responsive. Produces a prioritized findings table. Invoke when the user asks for audit on their UI, or mentions 'audit' alongside design / UI / frontend work.
198 chars✓ has a “when” trigger
Intermediate

Key capabilities

  • Audit UI accessibility
  • Analyze UI performance
  • Check responsiveness
  • Generate prioritized findings

How it works

It captures visual states of the UI and analyzes them against accessibility, performance, and responsiveness criteria.

Inputs & outputs

You give it
UI surface
You get back
Prioritized findings table

When to use audit

  • Auditing UI responsiveness across different screen sizes
  • Testing accessibility compliance of a frontend component
  • Identifying performance bottlenecks in the UI
  • Generating a report for UI/UX improvements

About this skill

<!-- HARNESS MIRROR — do not edit here. Canonical source: skills/ or commands/. After editing source, copy into cli/assets/<harness>/ and repo-root harness mirrors. -->

Context: this sub-skill is one lens of the broader ui-craft skill. If the ui-craft skill is also installed, read its SKILL.md first for Discovery + Anti-Slop + Craft Test, then apply the specific lens below.

Run a technical audit of the UI at $ARGUMENTS. Load the ui-craft skill and apply the audit lens.

Step 0: Visual capture (mandatory)

Code-only review is insufficient. Every audit/critique starts with the surface as the user sees it. Try the following in order; use the first one available:

  1. Playwright MCP — if playwright MCP server is available, use it. Capture full-page screenshots at three viewports: desktop (1280×800), tablet (768×1024), mobile (375×812). Capture dark mode if the app supports it.
  2. Browser DevTools / Chrome MCP — second choice; same viewport set.
  3. Other browser automation (agent-browser, cursor-ide-browser) — third choice.
  4. Ask the user — last resort. If no automation is available, request screenshots from the user before proceeding. Be specific:
    • "Visual review needs screenshots. Please provide:
      • Full-page at 1280px (desktop)
      • Full-page at 768px (tablet)
      • Full-page at 375px (mobile)
      • Dark mode of each, if supported."

Do not begin the review until visuals are captured or provided. State this explicitly to the user when no automation succeeds — don't silently fall back to code-only review.

If the user declines to provide screenshots, run a code-only pass and clearly mark the report [CODE-ONLY REVIEW — visual issues not assessed] at the top so the limitation is explicit.

Note: audit is knob-agnostic — accessibility and performance are not tunable.

Scope (non-negotiable checks):

  1. Accessibility — read references/accessibility.md:
    • Visible :focus-visible on every interactive element
    • Keyboard reachable, no focus traps
    • Touch targets ≥ 44px (mobile)
    • Color not the only signal for state
    • Form labels, error association, required indication
    • prefers-reduced-motion honored for all animations
  2. Performance — read references/motion.md Rendering Performance section:
    • Only transform / opacity animated (no width/top/height)
    • No transition: all
    • will-change scoped to active interaction, removed after
    • Images have width/height or aspect-ratio (CLS)
    • No layout thrash in scroll/resize handlers
  3. Responsive — read references/responsive.md:
    • Mobile-first breakpoints, no fixed-width components
    • env(safe-area-inset-*) respected on fixed elements
    • Touch zones don't overlap
    • No horizontal scroll at 320px

Output format — the Review Format table from SKILL.md:

BeforeAfterWhy

Group findings by priority: Critical (blocks usability/a11y) → High-impact (immediately noticeable) → Quick wins (polish).

Do NOT rewrite code unless asked. Report findings first; wait for approval before editing.

Close with a Craft Report (references/review.md → Craft Report), wrapping the findings table above — Checked states scope (a11y/perf/responsive, at which viewports), Passed carries anything inspected and found sound, Changed stays empty pre-approval, Verdict names the top priority. Produce it even on a clean audit — a11y/perf/responsive coming back clean is the finding.

Next step: /harden — turn the findings into real production coverage (rung 1).

When not to use it

  • When the UI is not accessible via browser
  • When the user wants to bypass UI audits

Prerequisites

Browser automation tool

Limitations

  • Requires visual capture
  • Browser-based UI only

How it compares

It combines visual capture with technical analysis to produce a prioritized list of UI improvements.

Compared to similar skills

audit side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
audit (this skill)03moNo flagsIntermediate
frontend-developer274moNo flagsIntermediate
roier-seo46moReviewIntermediate
reactive-dashboard-performance05moNo flagsAdvanced

Try saying

Example prompts that trigger this skill in your AI assistant.

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