I Polish

MANDATORY PREPARATION

Read ${CLAUDE_CONFIG_DIR:-~/.claude}/skills/i-frontend-design/SKILL.md for design principles, anti-patterns, and the Context Gathering Protocol. Follow the protocol before proceeding — if no design context exists yet, you MUST run /i-teach-impeccable first. Additionally gather: quality bar (MVP vs flagship).

Perform a meticulous final pass to catch all the small details that separate good work from great work. The difference between shipped and polished.

Design System Discovery

Before polishing, understand the system you are polishing toward:

1. Find the design system: Search for design system documentation, component libraries, style guides, or token definitions. Study the core patterns: color tokens, spacing scale, typography styles, component API.
2. Note the conventions: How are shared components imported? What spacing scale is used? Which colors come from tokens vs hard-coded values? What motion and interaction patterns are established?
3. Identify drift: Where does the target feature deviate from the system? Hard-coded values that should be tokens, custom components that duplicate shared ones, spacing that doesn't match the scale.

If a design system exists, polish should align the feature with it. If none exists, polish against the conventions visible in the codebase.

Pre-Polish Assessment

Understand the current state and goals:

1. Review completeness:

   • Is it functionally complete?
   • Are there known issues to preserve (mark with TODOs)?
   • What's the quality bar? (MVP vs flagship feature?)
   • When does it ship? (How much time for polish?)

2. Identify polish areas:

   • Visual inconsistencies
   • Spacing and alignment issues
   • Interaction state gaps
   • Copy inconsistencies
   • Edge cases and error states
   • Loading and transition smoothness

CRITICAL: Polish is the last step, not the first. Don't polish work that's not functionally complete.

Propose Changes

After analyzing the current state, present your proposed changes to the user:

1. Assessment: What's wrong and why (your domain analysis above)
2. Proposed changes: Specific changes ranked by impact, with rationale
3. Verification plan: What to check after implementation (LLM self-check items + Playwright verification if available)

Then STOP and confirm before implementing:

AskUserQuestion:
  question: "Here's what I'll check and fix in this polish pass. Proceed?"
  header: "Confirm"
  options:
    - label: "Implement"
      description: "Looks good — go ahead and make these changes."
    - label: "Refine scope"
      description: "I want to adjust what's included before you start."
    - label: "Challenge this first"
      description: "I'll run /mine-challenge against your proposal before we proceed."
    - label: "Stop here"
      description: "Don't implement anything. The proposal is in this conversation only."

If "Implement" → proceed to implementation below. If "Refine scope" → ask what to change, update proposal, re-confirm.

If "Challenge this first" → invoke /mine-challenge inline against the proposal, read findings, revise proposal, re-present this gate. If "Stop here" → end the skill.

Polish Systematically

Work through these dimensions methodically. The standard checks (grid alignment, WCAG contrast, 44px touch targets, removing console.logs/dead code, alt text, no layout shift) you already know — apply them. The items below are the ones worth spelling out:

• Spacing: All gaps use the spacing scale — no random 13px values. Optical alignment over mathematical (icons may need an offset to look centered).
• Typography: Body line length 45-75 characters. Same elements use same size/weight throughout.
• Color: No hard-coded colors — all from tokens. Tinted neutrals, never pure gray or pure black (~0.01 chroma tint). Gray on colored backgrounds: see /i-colorize. Also check the anti-patterns reference.
• Interaction states: Every interactive element needs its full set of states. See interaction-design.md for the canonical eight-states table. Missing states create broken experiences.
• Transitions: 150-300ms. Easing: see /i-animate — never bounce/elastic. Animate only transform and opacity. Respect prefers-reduced-motion.
• Copy: Consistent terminology and capitalization throughout. Punctuation consistent (periods on sentences, not on labels).
• Forms: Consistent validation timing (on blur vs on submit), logical tab order.
• Edge cases: Loading, empty, error, and success states all present. Handles very long content and missing data gracefully.

IMPORTANT: Polish is about details. Zoom in. Squint at it. Use it yourself. The little things add up.

NEVER:

• Polish before it's functionally complete
• Spend hours on polish if it ships in 30 minutes (triage)
• Introduce bugs while polishing (test thoroughly)
• Ignore systematic issues (if spacing is off everywhere, fix the system)
• Perfect one thing while leaving others rough (consistent quality level)
• Create new one-off components when design system equivalents exist
• Hard-code values that should use design tokens

Final Verification

Before marking as done:

• Use it yourself: Actually interact with the feature
• Test on real devices: Not just browser DevTools
• Ask someone else to review: Fresh eyes catch things
• Compare to design: Match intended design
• Check all states: Don't just test happy path

Remember: You have impeccable attention to detail and exquisite taste. Polish until it feels effortless, looks intentional, and works flawlessly. Sweat the details - they matter.

Clean Up

After polishing, ensure code quality:

• Replace custom implementations: If the design system provides a component you reimplemented, switch to the shared version.
• Remove orphaned code: Delete unused styles, components, or files made obsolete by polish.
• Consolidate tokens: If you introduced new values, check whether they should be tokens.
• Verify DRYness: Look for duplication introduced during polishing and consolidate.

Completion

After implementation, summarize in conversation:

1. Changes made: List each file changed and what was done
2. Verification: LLM self-check results (anti-pattern scan, consistency check). Note if Playwright was available for visual verification.
3. Suggested next step: Any follow-up skills that would complement this work (e.g., after /i-typeset, suggest /i-polish for a final pass)