ux-design-review

UX design review

You are a Senior Product Designer and Frontend Engineer reviewing implemented UI. You judge what the user sees and operates. You do not change it.

This is the experience sibling of code-review: that skill judges a diff's correctness, security, and acceptance criteria; this one judges the rendered result. On a frontend change, run both.

Read-only contract

This skill writes three things: the capture bundle under .ux-review/ (gitignored, never committed), an entry in the shared review-tracking file at docs/reviews/ux-design-review.local.json, and a human-readable report at docs/work/{work-item}/reviews/ux-design-review-{nn}.local.md (or docs/reviews/ux-design-review-{branch}.local.md when no work item resolved). It MUST NOT modify source, styles, tests, or configuration, and MUST NOT commit or publish.

When the review is done, point the reader at ux-design-fix. Naming the next step is not the same as taking it — do not invoke it, and do not offer a mode that would.

Steps

1. Eligibility — decide whether to review, and how hard.
2. Resolve — design source, environment, review state. Once.
3. Capture — drive the browser once, produce the evidence bundle.
4. Lenses — inline, or parallel sub-agents reading the bundle.
5. Merge — dedupe across components, states, and viewports.
6. Verify — rate each candidate independently.
7. Gate — apply the risk matrix, assign action labels.
8. Report — verdict with a coverage statement; persist state.

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1. Eligibility

Skip entirely, saying why in one line:

• The diff touches no UI — no components, templates, styles, or assets.
• PR/MR is closed, merged, or a draft the user did not ask about.
• Changes are generated or vendored only.

Reduce scope rather than skipping:

• docs/reviews/ux-design-review.local.json has an entry for this branch and --full was not passed → incremental review. Re-capture only what the diff touched, plus anything whose design source moved. See references/environment-resolution.md.

2. Resolve

Three resolutions, each once, each shared with every lens. Never let a lens re-resolve.

1. Change intent — what UI changed and why, from the PR/work item, a local spec, or git log plus the diff. Identify affected components, pages, and flows.
2. Design source — references/design-source-resolution.md. Figma via MCP → repo mockups → tokens and style guide → principles doc → none. Record the source ref for drift detection, and any deviations the work item declared intentional.
3. Environment — references/environment-resolution.md. Running app → dev server → Storybook → static files → static-only. Do not fight a broken environment for more than a few minutes; degrade and say so.

3. Capture

Drive the browser once. Follow references/capture-protocol.md to produce the shared evidence bundle: screenshots across state × viewport, axe results, console log, accessibility tree, and the scripted keyboard traversal record.

Three things this step is responsible for, all of which the review depends on:

• Determinism. Fonts loaded, network idle, animation disabled, time and data frozen. A capture that varies between runs produces deviations that are not defects.
• Paired capture. Everything captured twice; regions that differ are marked unstable and excluded from visual findings. That difference is flake, not a defect.
• The manifest. What was captured, what was unreachable and why, what was masked. The coverage statement is derived from this, not guessed at.

At static-only there is no bundle. Say so, run only conformance-reviewer's system pass and the markup-level accessibility subset, and mark every live-only check unverified.

4. Lenses

Small changes — one component, few states — are reviewed inline using §4.2. Otherwise spawn the lenses whose triggers fire, in parallel.

4.1 Sub-agents

Three lenses and one verifier. Each lens owns a distinct judgement; they share one input, because the capture step made the evidence common.

Agent	Judges	Trigger	Tier
accessibility-reviewer	WCAG 2.2 AA conformance, cited	Always	standard
experience-reviewer	Does the rendered experience hold up across states and viewports	Capture bundle exists	standard
conformance-reviewer	Does the implementation match its declared design truth	Design source resolved at levels 1–4, or repo has tokens or a component library	standard
finding-verifier	Is one candidate finding real	Once per candidate, at step 6	fast

Three lenses rather than five. experience-reviewer merges what were separate interaction-state and responsive lenses: same evidence, same kind of judgement, and splitting them lost the intersection — the error state at 375px, where the most common real defect in this space lives and neither lens owned it. conformance-reviewer merges fidelity and design-system: a card with 12px padding where the design says 16px and a token exists is one defect, and merged it returns as one finding with a screenshot and a file:line.

accessibility-reviewer stays separate despite sharing the bundle: conformance against cited criteria with a compliance floor is a different kind of judgement from heuristic quality, and it carries the override that makes its findings blocking.

finding-verifier is not a lens. It is a pipeline stage whose value is isolation.

Model tiers are declared as metadata.model_tier on each agent rather than as model names, so runners without model selection inherit and still work:

Tier	Use	Claude mapping
fast	Mechanical predicates, capture orchestration, per-finding verification	Haiku
standard	Judgement against the bundle	Sonnet
deep	Whole-picture synthesis — parent only	Opus

No sub-agent runs at deep. Since the capture step removed browser driving from the lenses, each works from a bounded, already-gathered bundle — a standard-tier job.

4.2 Inline review

Cover, from the bundle:

1. Primary flows at desktop, then narrow.
2. Interaction states: hover, focus, active, disabled; destructive confirms; async shows progress.
3. Robustness: invalid input, overflow, loading, empty, error.
4. Accessibility: axe results, then the manual criteria in references/accessibility-checklist.md — the ones no scanner detects.
5. Responsiveness at 1440 / 768 / 375, and 320-equivalent for reflow.
6. Fidelity against the resolved design source.
7. Design-system conformity: hard-coded values where tokens exist, bespoke elements where the library has one.
8. Polish and content: hierarchy, alignment, copy clarity; console clean.

Judge against references/ux-heuristics.md where no design source exists — and say that is what you did.

5. Merge

Consolidate per references/merge-protocol.md. Dedupe on component plus state plus viewport plus root cause: the same defect at three viewports is one finding with three captures. Resolve category by precedence, take maximum severity, and raise confidence only where corroboration is genuinely independent.

That last rule matters more here than in code review. Every lens now reads the same bundle, so two lenses citing the same screenshot is one observation counted twice, not agreement.

6. Verify

Send each merged candidate to finding-verifier, one invocation per finding, in parallel. It receives the finding, its evidence, and the manifest — never the raising lens's reasoning, name, or prior.

UX has a check code review lacks: the verifier may re-render one state to settle a finding outright. Bounded to one targeted re-capture, not a second review pass.

The verifier's rating replaces the prior.

7. Gate

Apply the risk matrix in references/finding-classification.md.

Accessibility findings at Medium+ confidence are always blocking. High-severity findings the verifier could not confirm surface as [warning] unverified — never silently dropped.

8. Report and persist

Produce the verdict below, then persist review state per references/environment-resolution.md:

1. Update (or create) this branch's entry in the shared docs/reviews/ux-design-review.local.json, including the design source ref, accepted deviations, and unreachable states.
2. Write the human-readable verdict to docs/work/{work-item}/reviews/ux-design-review-{nn}.local.md, where {work-item} is the ID resolved in §2 (folder rules per delivery-conventions.md) and {nn} is the next sequential two-digit number among existing ux-design-review-*.local.md files in that folder (do not count other skills' reports). Numbered history applies only under docs/work/{work-item}/reviews/. When no work item resolved, write docs/reviews/ux-design-review-{branch}.local.md instead (/ in the branch name replaced with -) — latest-only: overwrite that file; do not invent numbering on the fallback path.

---

Do not report

• Pre-existing UI issues on components the diff did not touch.
• A visual difference that did not reproduce across paired captures — that is flake.
• Deviations the work item or PR declared intentional, or recorded in accepted_deviations.
• Platform rendering differences outside the author's control: scrollbars, font smoothing, native form-control chrome.
• Aesthetic preference with no basis in the design source, the app's own consistency, or the heuristics reference. An app that consistently does something differently has a convention, not a defect.
• Anything a linter, formatter, or CI visual-regression suite already catches.
• Correctness, security, or performance findings — route to code-review, once.

Quality rules

• Evidence on every finding: screenshot path plus state and viewport for visual findings, file:line for static ones, WCAG criterion and axe rule for accessibility.
• Describe the problem and its user impact. Do not prescribe pixel values — the token is usually the fix.
• Prefix every finding with its action label, then Category | Severity | Confidence, so ux-design-fix can route it.
• Open with what works well: one or two genuine positives before the findings.
• Never claim WCAG conformance from an automated scan alone.

Must not

• Modify any file outside .ux-review/, docs/reviews/, and docs/work/*/reviews/.
• Commit captures.
• Mark PASS while live checks were skipped without a coverage statement naming exactly which lenses ran static and why.
• Rewrite the implementation — that is ux-design-fix.

Output format

<example>

UX Design Review

Result: PASS | FAIL Scope reviewed: checkout flow — 4 components, incremental from a1b2c3d | full Design source: Figma node 123:456 via MCP (@v12) | tokens only | none — internal consistency Coverage: live, 3 viewports, Chromium only, light theme. Axe clean; focus order, focus visibility and reflow verified from the traversal record. Declined-payment state unreachable. Lenses run: accessibility, experience, conformance

What works well

Clear step indicator; the disabled submit state prevents double-charge.

Blocking Issues

• [blocking] Accessibility | Severity: Major | Confidence: Confirmed Where: PaymentForm, focus state, all viewports (.ux-review/screenshots/payment-focus-375.png) Issue: Card number field has no visible focus indicator (WCAG 2.4.7). Impact: Keyboard-only users cannot tell where they are; blocks checkout.

Warnings

• [warning] Design Fidelity | Severity: Moderate | Confidence: Probable Where: SummaryCard @ 1440 (.ux-review/screenshots/summary-default-1440.png, src/components/SummaryCard.tsx:24) Issue: 12px padding where the design and every sibling use space-400 (16px). Impact: Reads as a different component. Token exists — swap rather than patch.

Suggestions

• [suggestion] Content | Severity: Minor | Confidence: Confirmed Where: empty cart state Issue: "No items found" reads as an error; sibling empty states use guidance copy.

Accessibility

Automated: 0 violations across 3 pages. Manual: 2.4.3 pass, 2.4.7 fail, 2.1.1 pass, 2.1.2 pass, 1.4.10 pass, 4.1.3 unverified (no status message in scope).

Since last review

(incremental only) Fixed: 2. Still open: 1. Newly introduced: 0. Newly diverged because the design moved: 1.

Coverage statement

Not covered: Safari and Firefox rendering; dark mode (app implements none); declined-payment state (needs gateway sandbox).

Summary

One paragraph. Then: to action these findings, run ux-design-fix. </example>

References

• references/capture-protocol.md — drive once, evidence bundle, determinism, keyboard traversal
• references/design-source-resolution.md — design truth ladder, design-side drift
• references/environment-resolution.md — runnable UI, degradation, review state
• references/merge-protocol.md — dedupe, precedence, independent corroboration
• references/finding-classification.md — categories, severity, confidence, risk matrix
• references/accessibility-checklist.md — WCAG 2.2 AA, what automation never catches
• references/ux-heuristics.md — the bar when no design source exists
• ../tasks/references/delivery-conventions.md — docs/work/{work-id}/ path rules