ux

name	ux
description	Use when starting UX research for a new feature, drafting a UX spec, building wireframes, validating a spec against the 13 UX principles (8 core + 5 FitMe-specific), gating Phase 3 UX preflight (verifies spec cites real codebase symbols — saves 2-4h of Phase 4 rework per feature on average), gating Phase 6 UX pre-merge review (verifies shipped code matches spec + kill_criteria_resolution present), running a UX audit, or generating a UX build prompt. Sub-commands: /ux research {feature}, /ux spec {feature}, /ux wireframe {feature}, /ux validate {feature}, /ux preflight {feature}, /ux pre-merge-review {feature}, /ux audit, /ux patterns, /ux prompt {feature}.
last_updated	2026-05-15T00:00:00.000Z
framework_version	v7.8.6
status	active
adapters_used	["axe"]

UX Specialist: $ARGUMENTS

You are the UX planning specialist for FitMe. You ensure every UI feature is grounded in research-backed UX principles before visual design or code implementation begins.

Observed patterns preflight

The pattern↔skill map tracks 71 work-blocking patterns (25 gate-firing patterns + 46 workflow patterns) drawn from the Observed Patterns Catalog (make observed-patterns). The patterns below are the ones mapped to /ux work — probe the mechanized ones, checklist the rest:

ID	Pattern	Blocker	Remediation
#6	FEATURE_CLOSURE_COMPLETENESS — missing frontmatter on current_phase=complete (probed)	yes	Populate the 7 required case-study frontmatter fields + kill_criteria_resolution before the complete-transition commit.
#16	CASE_STUDY_MISSING_FIELDS — required frontmatter validation (probed)	yes	Fill the required frontmatter fields, or apply the appropriate case_study_type exemption.
W16	Contract-boundary tests must sample from the canonical producer	no	Sample cross-repo test fixtures from the canonical producer; normalize at parse with a nullish fallback.
W46	A screen that renders is not yet snapshotable — wall-clock content + onAppear-gated reveals	no	Never commit a snapshot baseline you have not viewed. Confirm the PNG shows the screen with no date/time/random content in frame; a blank or stale-dated PNG is still a PNG. Wall-clock content needs an injectable clock on the view; onAppear-gated reveals are not fixed by .wait or drawHierarchyInKeyWindow (both ruled out 2026-07-23).

At activation run make skill-preflight SKILL=ux — probes the 2 mechanized blockers for this work type; clear any before proceeding.

Mandatory (CLAUDE.md §v7.8.5): any novel pattern surfaced this session MUST be appended to observed-patterns.md before the feature closes — then re-run make gen-skill-preflight.

Boundary: /ux vs /design

Concern	/ux (this skill)	/design
What & Why	User flows, behavior, heuristics, patterns	—
How it Looks	—	Tokens, components, Figma, compliance
Research	Principles, HIG, competitive UX	Market positioning, visual trends
Validation	Heuristic evaluation, cognitive walkthrough	Token compliance, contrast, motion
Accessibility	Usability (clarity, cognitive load, feedback)	Technical (WCAG AA, VoiceOver, tap targets)

Handoff: /ux produces ux-research.md + ux-spec.md → /design validates against design system → /dev implements.

Shared Data

Preflight cache: .claude/shared/preflight-cache.json — refreshed by make preflight WORK_TYPE=<feature|enhancement|fix|chore> [FEATURE=<name>]. Run BEFORE any sub-command to get current work-context data (W1 ssh-agent, integrity findings, drift vs anchor, doc-debt, adoption baseline). Cache schema: docs/skills/preflight-cache-schema.md.

Reads:

• .claude/shared/context.json — personas, positioning, competitors
• .claude/shared/design-system.json — tokens, components available
• .claude/shared/cx-signals.json — user confusion/friction signals
• .claude/shared/feature-registry.json — feature status and pain points
• docs/design-system/ux-foundations.md — the 13 principles + 10 parts
• docs/design-system/v2-refactor-checklist.md — Sections A / E / F / G / H are the responsibility of /ux

Writes:

• .claude/features/{feature}/ux-research.md (from /ux research)
• .claude/features/{feature}/ux-spec.md (from /ux spec)
• .claude/features/{feature}/v2-audit-report.md (from /ux audit when invoked for a v2 refactor)
• .claude/shared/design-system.json — ux_coverage field (% of features with ux-spec)

UX Principles Reference (13 Total)

Core Principles (8)

#	Principle	Summary	Apply When
1	Fitts's Law	Larger, closer targets are faster to reach	Sizing CTAs, thumb zone placement, bottom-anchored actions
2	Hick's Law	More choices = longer decision time	Limiting options per screen (max 4-6), progressive profiling
3	Jakob's Law	Users expect your app to work like others	Following iOS tab bar, sheets, navigation push conventions
4	Progressive Disclosure	Show summary first, detail on demand	Readiness score → tap for breakdown, macro summary → tap for meals
5	Recognition over Recall	Visible state beats memorized commands	Current day type badge, macro progress bars, streak indicators
6	Consistency	Same patterns across all screens	Card layouts, section headers, button styles uniform
7	Feedback	Every action gets a response	Haptic on set completion, animation on PR, toast on save
8	Error Prevention	Design to prevent mistakes	Confirmation on destructive actions, undo, 30-day grace period

FitMe-Specific Principles (5)

#	Principle	Summary	Apply When
9	Readiness-First	Lead with "how am I doing?" before "what should I do?"	Home screen, session planning, recovery displays
10	Zero-Friction Logging	Every data entry completable in <10 seconds	Meal entry, set logging, biometric entry, supplement check
11	Privacy by Default	Encrypt first, explain later. Never expose health data to analytics	Data display, sync, analytics, consent flows
12	Progressive Profiling	Don't ask everything upfront. Learn from behavior	Onboarding (skip allowed), AI recommendations, goal adjustment
13	Celebration Not Guilt	Highlight streaks and PRs. Never shame missed days	Streak display, rest days, missed workout messaging

Sub-commands

/ux research {feature}

Purpose: Conduct UX research before design begins.

Steps:

1. Read the feature PRD from .claude/features/{feature}/prd.md
2. Read docs/design-system/ux-foundations.md for the pattern library
3. Identify applicable principles — which of the 13 principles apply and how
4. Apple HIG audit — check iOS Human Interface Guidelines for relevant patterns:
   • Navigation patterns (push, modal, tab, sheet)
   • Input patterns (forms, pickers, steppers, sliders)
   • Feedback patterns (haptics, animations, alerts)
   • Accessibility requirements (Dynamic Type, VoiceOver, 44pt tap targets)
5. Competitive UX analysis — how do 3+ competitors handle this interaction?
   • Strava, MyFitnessPal, Hevy, Strong, Apple Health, Fitbod
   • What works well? What's frustrating?
6. User flow mapping — define primary flow, skip flow, error flow, edge cases
7. CX signal check — read .claude/shared/cx-signals.json for confusion/friction signals related to this feature area

Output: Create .claude/features/{feature}/ux-research.md with:

• Applicable principles table (principle → how it applies → do/don't)
• HIG references
• Competitive analysis (3+ apps)
• External UX research sources
• Recommended interaction patterns
• User flow diagrams (text-based)

/ux spec {feature}

Purpose: Create a complete UX specification from research.

Prerequisites: ux-research.md should exist (run /ux research first, or combine).

Steps:

1. Read PRD, ux-research.md, and docs/design-system/ux-foundations.md
2. Define user flows:
   • Primary flow (happy path — step by step)
   • Skip/shortcut flow (what happens when user skips optional steps)
   • Error flow (what happens on failure at each step)
   • Edge cases (empty data, first use, returning user, offline)
3. Screen inventory with schematics (mandatory):
   • List every screen/view needed
   • For each: purpose, entry points, primary action, exit points
   • Low-fidelity wireframes: ASCII box diagrams showing layout structure, element placement, and content hierarchy. One per screen/state. Show all sections, buttons, inputs, and navigation elements.
   • High-fidelity schematics: ASCII diagrams with exact token mappings (AppText., AppSpacing., AppColor., AppRadius.), component names, accessibility modifiers, and animation tokens. One per major component/view.
   • Full-screen composite: A single detailed ASCII rendering showing ALL elements assembled together as the user would see them — the complete screen from navigation bar to tab bar, with real sample data, showing the default state with at least one expanded/active section. This is the "hero" visual that communicates the design at a glance.
4. Interaction patterns per screen:
   • Navigation type (push, sheet, modal, tab switch)
   • Input method (tap, swipe, type, pick, scan)
   • Feedback (haptic type, animation, toast, alert)
   • Loading behavior (skeleton, spinner, none)
5. State matrix: | Screen | Default | Loading | Empty | Error | Success | Disabled |
   • Fill in for every screen
6. Accessibility specification:
   • VoiceOver labels for interactive elements
   • Dynamic Type behavior (what scales, what's fixed)
   • Tap target sizes (must be ≥44pt)
   • Reduce-motion alternatives
7. Principle application table: | Principle | How Applied | Screen/Component |
   • Map every applicable principle to a concrete design decision
8. Run the Feature Design Checklist (docs/design-system/feature-design-checklist.md)

Output: Create .claude/features/{feature}/ux-spec.md

/ux wireframe {feature}

Purpose: Generate visual schematics at three fidelity levels for a feature. Can be run standalone or as part of /ux spec. Produces ASCII wireframes that communicate the design before any Figma or code work.

Steps:

1. Read the feature's ux-spec.md and PRD

2. Produce three deliverables:

   a) Low-fidelity wireframes — one per screen/state:

   • ASCII box diagrams showing layout structure
   • Element placement and content hierarchy
   • All sections, buttons, inputs, navigation elements
   • Use ┌ ─ ┐ │ └ ┘ box-drawing characters
   • Show real sample data (not "Lorem ipsum")
   • Label each element with its role

   b) High-fidelity schematics — one per major component/view:

   • Exact token mappings: AppText.*, AppSpacing.*, AppColor.*, AppRadius.*
   • Component names and SwiftUI view hierarchy
   • Accessibility modifiers (.accessibilityLabel, .accessibilityHint)
   • Animation tokens (AppSpring.*, AppEasing.*)
   • State handling (if/else branches)

   c) Full-screen composite — ONE complete rendering:

   • Shows ALL elements assembled as the user sees them
   • From navigation bar to tab bar
   • Real sample data throughout
   • Default state with at least one expanded/active section
   • Legend explaining visual conventions (icons, stripes, indicators)
   • This is the "hero" visual — the design at a glance

3. Present all three to the user for approval

Output: Wireframes embedded in ux-spec.md (Sections 2 and 3), or presented inline in chat if run standalone.

/ux validate {feature}

Purpose: Validate an existing UX spec or implementation against principles.

Steps:

1. Read the feature's ux-spec.md (or code if already implemented)
2. Heuristic evaluation — score against Nielsen's 10 usability heuristics (0-4 scale):
   • Visibility of system status
   • Match between system and real world
   • User control and freedom
   • Consistency and standards
   • Error prevention
   • Recognition rather than recall
   • Flexibility and efficiency of use
   • Aesthetic and minimalist design
   • Help users recognize, diagnose, recover from errors
   • Help and documentation
3. Principle compliance — check all 13 principles, flag violations
4. State coverage — are all states defined? (empty, loading, error, success)
5. Accessibility check — labels, tap targets, Dynamic Type, VoiceOver
6. CX signal cross-reference — do any cx-signals.json entries indicate UX problems in this area?

Output: Validation report with pass/fail per heuristic and principle, severity ratings, fix recommendations.

/ux preflight {feature}

Purpose: Pre-Phase-4 gate — verify the spec's named tokens, components, and patterns actually exist in the codebase BEFORE any code is written. Catches the silent-pass error where a spec invokes AppRadius.pill (doesn't exist) or SettingsActionLabel with a custom badge slot (component doesn't accept it). Pairs with /design preflight (which adds the Figma MCP + library check).

Trigger: Auto-dispatched by /pm-workflow after /ux spec lands but before Phase 3 approval. Also invokable standalone.

Steps:

1. Read .claude/features/{feature}/ux-spec.md
2. Extract every token reference (AppColor.*, AppText.*, AppSpacing.*, AppRadius.*, AppMotion.*, AppEasing.*, AppDuration.*, AppSpring.*, AppShadow.*, AppSize.*, AppGradient.*)
3. Extract every component reference (Settings*, App*Card, custom-named SwiftUI structs)
4. Extract every interaction pattern (.swipeActions, .contextMenu, .alert, .confirmationDialog, custom toast/snackbar names)
5. For each token: grep FitTracker/Services/AppTheme.swift and FitTracker/DesignSystem/. If absent → P0 finding.
6. For each component: grep FitTracker/Views/ and FitTracker/DesignSystem/. If absent OR signature doesn't accept what the spec asks for → P0 finding.
7. For each pattern: grep the codebase for any usage. If absent → P2 finding (new-to-codebase, document as design-system evolution; not blocking).
8. Append a record to .claude/cache/_shared/ux-spec-preflight.json:

   {
     "feature": "{feature}",
     "spec_path": "...",
     "checked_at": "{ISO 8601}",
     "tokens_referenced": [...],
     "components_referenced": [...],
     "patterns_referenced": [...],
     "findings": { "p0": [...], "p1": [...], "p2": [...] }
   }
   

9. Write a human-readable audit at .claude/features/{feature}/ux-preflight-audit-{date}.md
10. Return findings to the user.

Gate behavior:

• P0 unresolved → spec is NOT approvable. User must fix the spec OR add the missing token/component to the design system on this feature's branch (per CLAUDE.md design-system evolution rule).
• P2 net-new patterns are surfaced for documentation in docs/design-system/feature-memory.md but don't block.

Output: .claude/features/{feature}/ux-preflight-audit-{date}.md + .claude/cache/_shared/ux-spec-preflight.json entry.

Self-test fixtures (P1.3, shipped 2026-05-14): .claude/skills/ux/fixtures/ holds canonical regression test cases for the symbol-existence check. Driver: scripts/preflight-fixture-test.py; invocation: make preflight-fixture-test. The valid-*.md fixtures cite only real codebase tokens (expected: 0 P0); the invalid-*.md fixtures cite a known-missing sentinel (expected: ≥1 P0). When the token-extraction regex or grep-target paths in this section change, update the fixtures + golden alignment to match. Wired into make integrity-check as an advisory tail-check.

/ux pre-merge-review {feature}

Purpose: Phase 6 (Review) UI-specific layer — heuristic re-check of the SHIPPED implementation against the original ux-spec.md. Catches drift where the code mostly matches the spec but key UX decisions silently shifted during implementation. Pairs with /design pre-merge-review (token compliance + Figma node ID validation).

Trigger: Auto-dispatched by /pm-workflow Phase 6, after Phase 5 (Testing) approval but before Phase 7 (Merge). Also invokable standalone.

Prerequisites:

• state.json.phases.testing.status == "approved"
• ux-spec.md exists and was approved
• A feature branch exists with the implementation

Steps:

1. Read .claude/features/{feature}/ux-spec.md (the approved contract)
2. For each surface in the spec, locate the corresponding view file via state.json.v2_file_path or grep for the Swift type name
3. Walk the spec's UX heuristic checklist (13 ux-foundations principles) against the actual implementation
4. Spot-check the persistence claims — if the spec names a file:line touch point ("EncryptionService.swift:779"), open that line and verify the change matches
5. Spot-check the analytics events — for each event listed in the spec, grep the implementation to confirm analytics.log{Event}(...) is wired
6. Heuristic re-check:
   • Fitts/Hick/Jakob compliance still holds
   • All 5 states (default/loading/empty/error/success) covered in code
   • VoiceOver labels present where spec required
   • Reduce-motion alternatives present
7. Write a review at .claude/features/{feature}/ux-pre-merge-review-{date}.md with: spec-vs-code matrix; drift findings; verdict (PASS / PASS_WITH_NOTES / BLOCK)
8. Sub-step 6f (T21, framework-v7-8-branch-isolation, advisory in v7.8 → enforced in v7.9): kill_criteria_resolution check. Read the linked case study at state.json.case_study. Parse its frontmatter. If kill_criteria is non-empty, verify kill_criteria_resolution is non-empty AND substantively addresses each kill threshold (heuristic: mentions at least one of the listed kill thresholds verbatim OR contains acceptance keywords like "not tripped", "deferred", "superseded", "passed"). If kill_criteria is empty, skip. Failure → set state.json.pre_merge_review.ux = "blocked" with block_reason: "kill_criteria_resolution missing or non-substantive". Per framework-v7-8-branch-isolation/integration-spec.md §2.2.
9. Set state.json.pre_merge_review.ux = "passed" (or "blocked")

Gate behavior:

• BLOCK verdict → Phase 7 (Merge) is NOT approvable. User must fix the drift OR re-approve the spec to match shipped code (the latter requires PRD addendum).
• PASS_WITH_NOTES is allowed; notes appear in PR description.

Output: .claude/features/{feature}/ux-pre-merge-review-{date}.md + state.json.pre_merge_review.ux field.

/ux audit

Purpose: Walk a v1 surface (or the whole app) against ux-foundations.md and produce a severity-graded findings list. This is the primary Phase 0 output for v2 refactors per the V2 Rule in CLAUDE.md.

Two invocation modes:

Mode	Trigger	Input	Output
V2 refactor audit	PM workflow Phase 0 with state.json.work_subtype == "v2_refactor"	One v1 Swift file (e.g. FitTracker/Views/Main/MainScreenView.swift)	.claude/features/{feature}/v2-audit-report.md with numbered findings
App-wide audit	Standalone /ux audit	All view files under FitTracker/Views/	Audit report (no file written unless user asks)

Steps (v2 refactor mode):

1. Read the target v1 Swift file end-to-end. Note line counts, private functions, private types, modifiers, and state.
2. Read the feature's PRD from docs/product/prd/ if it exists.
3. Read docs/design-system/ux-foundations.md in full (Parts 1-8 are all relevant to a UI audit).
4. Read docs/design-system/v2-refactor-checklist.md — Sections A / C / E / F / G / H are the finding framework.
5. Walk the 13 UX Foundations principles (8 core + 5 FitMe-specific). For each principle that applies, document whether the v1 file honors it, partially honors it, or violates it.
6. Walk the 5 states (default / loading / empty / error / success) for every screen in scope. Missing states are findings.
7. Count raw literals:
   • .font(.system(size: ...)) outside // DS-exception: comments
   • .padding(...) with numeric literals
   • .frame(width:/height:) with numeric literals
   • Raw .spring(...) / .easeInOut(...) / .easeOut(...) calls
   • Hardcoded Color(...) literals
   • Every count becomes a finding under Section C (token compliance).
8. Count accessibility labels: grep accessibilityLabel and accessibilityHint. If the count is << the number of interactive elements, that's a P0 finding under Section G.
9. Check layout architecture — root-level GeometryReader, inline responsive sizing via compact/tight props, unused existing components, private types that should live in DesignSystem/.
10. Cross-reference .claude/shared/cx-signals.json for any user-reported confusion about this surface.

Finding format:

Each finding in v2-audit-report.md gets:

### F{n} — {short title}
- Severity: P0 | P1 | P2
- Tractability: auto-applicable | needs-decision | needs-new-token | needs-new-component
- Principle / checklist section: {e.g. "1.9 Readiness-First" or "Section G1"}
- Location: {file:line}
- Description: {what the v1 code does and why it's wrong}
- Recommendation: {what the v2 code should do}

Severity definitions:

• P0 — blocks v2 ship (foundational principle violation, missing critical state, broken accessibility baseline)
• P1 — should fix in v2 (token drift, minor principle miss, inconsistent pattern with other screens)
• P2 — nice-to-have, can defer to follow-up (polish, edge cases, optional enhancements)

Tractability definitions:

• auto-applicable — can be fixed mechanically without a product decision (raw literal → token, missing accessibility label, wrong animation easing)
• needs-decision — requires the user to choose between options (remove a feature vs evolve it, which pattern to use)
• needs-new-token — the fix requires a new semantic token in AppTheme.swift
• needs-new-component — the fix requires a new shared component in DesignSystem/

Output (v2 mode): .claude/features/{feature}/v2-audit-report.md

Steps (app-wide mode): Same process but across all view files, without writing a per-feature file. Output goes to the session chat as a summary.

/ux patterns

Purpose: Quick reference to the UX pattern library.

Steps:

1. Read docs/design-system/ux-foundations.md
2. Present a summary organized by category:
   • Navigation patterns
   • Input patterns
   • Feedback patterns
   • Data visualization patterns
   • Permission patterns
   • State patterns
   • Accessibility patterns
3. For each pattern: when to use, FitMe example, reference to ux-foundations.md section

Output: Formatted pattern reference.

/ux prompt {feature}

Purpose: Auto-generate a handoff prompt for another agent (typically a Figma MCP agent or an implementation agent) once Phase 3 UX work is approved. The prompt bundles everything the receiving agent needs: user flows, principle application, state coverage, accessibility requirements, and references to the design system. No manual prompt writing.

Prerequisites:

• .claude/features/{feature}/ux-research.md exists and is approved
• .claude/features/{feature}/ux-spec.md exists and is approved
• Phase 3 design system compliance gateway passed
• For v2 refactors: .claude/features/{feature}/v2-audit-report.md exists

Steps:

1. Read ux-research.md, ux-spec.md, and (if v2) v2-audit-report.md
2. Read state.json to pull work_subtype, v1_file_path, v2_file_path, Figma node IDs, and acceptance criteria
3. Read the relevant sections of ux-foundations.md cited in the spec
4. Assemble a single prompt file with:
   • Header — feature name, work subtype, target agent (Figma MCP / SwiftUI implementation / etc.), date, related GitHub issue
   • Context — one-paragraph product framing from PRD
   • What to build — screen inventory with wireframes or Figma node references
   • UX principles applied — the Principle Application Table from the spec, copied verbatim
   • State coverage — default / loading / empty / error / success for each screen
   • Accessibility requirements — VoiceOver labels, tap targets, Dynamic Type, reduce-motion
   • Handoff checklist — what the receiving agent should produce and return
   • References — paths to ux-spec, ux-research, audit report, ux-foundations, design-system.json
5. Write the prompt to docs/prompts/ux/{YYYY-MM-DD}-{feature}-ux-build.md (folder split established 2026-05-06: UX prompts land in docs/prompts/ux/, design/UI prompts land in docs/prompts/ui/, legacy flat files migrated to docs/prompts/_legacy/)
6. Announce: "UX handoff prompt written to docs/prompts/ux/…. Ready to transfer to the receiving agent."

Output: docs/prompts/ux/{YYYY-MM-DD}-{feature}-ux-build.md

When to run: Automatically dispatched by /pm-workflow after Phase 3 approval when state.json.phases.ux_or_integration.status == "approved". Also invokable standalone when the spec is done but the hub wasn't running it.

Paired with: /design prompt {feature} — /ux writes the what-and-why prompt, /design writes the how-it-looks prompt. Both land in docs/prompts/ with matching filename prefixes so the receiving agent can read them together.

PM Workflow Integration

PM Phase	Sub-command	When	Work subtype
Phase 0 (Research) — v2 refactor only	/ux audit {feature}	First step of a v2 refactor — produces v2-audit-report.md as the gap-analysis driver	v2_refactor
Phase 0 (Research) — new feature	/ux research {feature}	After competitive research, before PRD	new_ui
Phase 3 (UX Definition)	/ux research {feature} → /ux spec {feature} → /ux validate {feature} → /ux preflight {feature} (P0 gate) → /ux prompt {feature}	After PRD approved, before Phase 4 code	both
Phase 5 (Testing)	/ux validate {feature}	Post-implementation verification	both
Phase 6 (Review)	/ux pre-merge-review {feature} (gate)	Heuristic re-check of shipped code vs spec; runs alongside /design pre-merge-review	both
Post-Launch	/ux audit (app-wide)	When CX signals indicate UX issues	—

Phase 3 Choreography

The full Phase 3 handoff differs by work subtype:

New UI feature (new_ui):

1. /ux research {feature} → produces ux-research.md
2. /ux spec {feature} → produces ux-spec.md (with Principle Application Table and all 5 states covered)
3. /ux validate {feature} → heuristic evaluation, flags violations
4. /ux preflight {feature} → P0 gate: token/component/pattern existence check. Spec is NOT approvable with unresolved P0
5. /design preflight {feature} → P0 gate: DS compliance + Figma MCP liveness + Figma library accessibility check
6. /design audit → validates against design system (tokens, components, motion)
7. /ux prompt {feature} → handoff prompt to docs/prompts/ux/
8. /design prompt {feature} → handoff prompt to docs/prompts/ui/
9. /design build {feature} → builds Figma screens via MCP (or persists prompt for manual handoff if MCP unreachable). Writes Figma node IDs back to state.json.figma_node_ids and figma-code-sync-status.md
10. User approval → proceed to Phase 4 (Implementation)

V2 refactor (v2_refactor):

1. /ux audit {feature} (from Phase 0) → v2-audit-report.md is already in place
2. /ux research {feature} → consolidates audit findings into the 13 ux-foundations principles (ux-research.md)
3. /ux spec {feature} → ux-spec.md is written for the v2 file, using the audit findings as the gap list. Every P0/P1 finding must have a resolution in the spec (fix / evolve DS / override with justification)
4. /ux validate {feature} → heuristic re-check of the v2 spec
5. /ux preflight {feature} → P0 gate (same as new_ui)
6. /design preflight {feature} → P0 gate (same as new_ui)
7. /design audit → design system compliance gateway
8. Tick Section A of docs/design-system/v2-refactor-checklist.md
9. /ux prompt {feature} → docs/prompts/ux/
10. /design prompt {feature} → docs/prompts/ui/
11. /design build {feature} → Figma update reflecting v2 file changes
12. User approval → proceed to Phase 4 (build the v2 file in the v2/ subdirectory per the V2 Rule in CLAUDE.md)

Phase 6 Choreography (UI-specific layer added v4.X)

Phase 6 was a generic code-review step before the v4.X skill upgrade. It now adds a UI-specific layer that runs in parallel with the generic review:

1. /dev review (existing) — diff main…feature, risk surface, high-risk areas
2. /ux pre-merge-review {feature} (new) — heuristic re-check of shipped code vs ux-spec.md; spot-checks file:line touch points named in the spec; verifies all 5 states covered; verdict PASS / PASS_WITH_NOTES / BLOCK
3. /design pre-merge-review {feature} (new) — make ui-audit clean (P0=0); Figma node IDs present in state.json.figma_node_ids; PR description references those node IDs; screenshot diff Figma↔code (manual or auto via MCP)
4. Phase 7 (Merge) is NOT approvable until state.json.pre_merge_review.ux == "passed" AND state.json.pre_merge_review.design == "passed" (or "passed_with_notes")

Key References

Document	Purpose
docs/design-system/ux-foundations.md	Complete UX pattern library (13 principles + 10 parts)
docs/design-system/v2-refactor-checklist.md	Phase 3-5 checklist — /ux owns Sections A, E, F, G, H
docs/design-system/ux-copy-guidelines.md	Tone, voice, terminology
docs/design-system/feature-development-gateway.md	7-stage development workflow
docs/design-system/feature-design-checklist.md	Pre-implementation validation
docs/design-system/component-contracts.md	Component interaction behavior
docs/design-system/responsive-handoff-rules.md	Responsive design contract
CLAUDE.md — "UI Refactoring & V2 Rule"	V2 file convention (v2/ subdirectory + pbxproj surgery)
.claude/features/{feature}/ux-research.md	Per-feature UX research (from /ux research)
.claude/features/{feature}/ux-spec.md	Per-feature UX specification (from /ux spec)
.claude/features/{feature}/v2-audit-report.md	Per-feature v2 gap analysis (from /ux audit in v2 mode)

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External Data Sources

Adapter	Type	What It Provides
axe	MCP	Live accessibility audits, WCAG compliance scores, violation details

Adapter location: .claude/integrations/axe/ Shared layer writes: design-system.json

Validation Gate

All incoming a11y data passes through automatic validation before entering the shared layer:

• Score >= 95% GREEN: Data is clean. Write to shared layer. Notify /ux + /pm-workflow.
• Score 90-95% ORANGE: Minor discrepancies. Write + advisory. Review when convenient.
• Score < 90% RED: DO NOT write. Alert /ux + /pm-workflow. User must resolve.

Validation is automatic. Resolution is always manual.

Research Scope (Phase 2)

When the cache doesn't have an answer for a UX task, research:

1. UX principles — which of the 13 ux-foundations.md principles apply, how they've been applied before
2. Accessibility — WCAG AA requirements, VoiceOver patterns, Dynamic Type compliance, axe audit results
3. Spec patterns — how similar features were specced, wireframe conventions, principle application tables
4. Tools & APIs — Axe MCP for live a11y audits, Figma MCP for design context, platform HIG references
5. Interaction patterns — gesture conventions, navigation patterns, state coverage (5 states), motion tokens

Sources checked in order: L1 cache → L2 shared (ux-foundations-map) → shared layer (design-system.json, context.json) → integration adapters (axe) → codebase (ux-foundations.md) → external docs

Cache Protocol

Phase 1 (Cache Check): Read .claude/cache/ux/_index.json. Check for cached UX spec patterns, wireframe templates, a11y audit outcomes from prior features. Also read .claude/cache/_shared/ux-foundations-map.json for the cross-skill UX foundations application playbook.

Phase 4 (Learn): Extract new patterns (spec structure, principle application, a11y findings). Write/update L1 cache. UX foundations patterns shared with /design should be promoted to L2.

Cache location: .claude/cache/ux/

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Cache Protocol

Phase 1 — Cache Check (on skill start)

Read .claude/cache/ux/_index.json, match v2_screen_audit, check L2 ux-foundations-map.json. If hit: load patterns, skip principle derivation. If miss: Phase 2.

Phase 4 — Learn (on skill complete)

Extract new principle mappings, anti-patterns. Write L1. If pattern applies to /design or /qa, flag L2.

Health Check (Phase 0 — random trigger)

On skill start, before cache check:

1. Read .claude/shared/framework-health.json
2. If random() < 0.25 AND hours_since(last_check) > 2: run 5 health checks, compute weighted score, append to history
3. If score < 0.90: STOP and alert user with failing checks and rollback options
4. Proceed to Phase 1 (Cache Check)

External Data Sources

Adapter	Location	Shared Layer Target	When to Pull
axe	.claude/integrations/axe/	design-system.json, test-coverage.json	On /ux validate or /ux audit

Fallback: If adapter unavailable, continue with existing shared data. Log to change-log.json.

Research Scope (Phase 2 — when cache misses)

1. UX principles from ux-foundations.md
2. Apple HIG patterns
3. Competitor UX from /research cache
4. Accessibility heuristics (WCAG AA + cognitive)
5. State coverage (empty/loading/error/success)

Source priority: L2 cache > L1 cache > shared layer (cx-signals.json, design-system.json) > axe adapter > manual derivation

Anti-patterns

Hard-won mistakes for /ux work. Every bullet encodes a real or near-miss failure mode.

• Do not advance Phase 3 without /ux preflight passing — it verifies every token/component/pattern named in ux-spec.md exists in the codebase (saves 2-4h of 'no such symbol' Phase 4 rework per feature on average)
• Do not approve a UX spec that doesn't reference real codebase symbols — fictional symbols are the #1 source of Phase 4 rework
• Do not skip the 13 UX principle validation (8 core + 5 FitMe-specific) on a UX spec — they are the foundation for every Phase 4 decision
• Do not advance Phase 6 without /ux pre-merge-review recording kill_criteria_resolution when kill_criteria is set in state.json (pattern #6 FEATURE_CLOSURE_COMPLETENESS)
• Do not treat /ux preflight as final approval — it is one of several Phase 3 gates (multi-part approval — pattern W7)