YuqingNicole@variant-design-skill

Variant Design

Solve the blank canvas problem. Prompt → 3 fully-formed distinct designs → vary → export.

About

Inspired by the Variant design community — a space where designers share divergent takes on the same brief. This skill brings that practice into Claude Code: every prompt yields three designs that feel like they came from different studios, then lets you iterate with one-word actions.

Built on the Impeccable design system — a comprehensive set of design references covering typography, color theory, spatial design, motion, interaction patterns, responsive design, and UX writing. Every design decision is grounded in these principles.

Supports: Context-aware output (HTML default · React .tsx when React project detected) · Framer Motion (when installed) · 10 domain reference libraries · 39 palettes · design system references · micro-interaction library · interactive pattern library · style audit & token extraction · variation actions · Design Declaration → Product Integrity Contract for product-critical UI

CLI Workflow (Claude Code)

This skill runs inside Claude Code — a terminal. Design decisions must account for the fact that the user cannot see the output without opening a browser. Every step of the workflow should minimize friction between "idea" and "eyes on pixels."

Output Format Detection

Before generating any design, detect the output format. Run this detection once per session and cache the result.

Step 1: Read package.json

cat package.json 2>/dev/null

If absent or unreadable → HTML output (fail-safe), print warning if unreadable. Do not traverse parent directories — check cwd only.

Step 2: Walk the decision tree

Parse dependencies / devDependencies / peerDependencies / optionalDependencies. Check for exact keys only — never substring-match (react-scripts ≠ react, @vitejs/plugin-react ≠ vite).

package.json exists?
│
├─ no  →  HTML (zero-dep default)
│
└─ yes → check keys:
    │
    ├─ "react" present?
    │   ├─ yes → React branch:
    │   │         ├─ "next" present?          → Next.js App Router .tsx
    │   │         │                              add "use client" on components
    │   │         │                              using hooks/animations/browser APIs
    │   │         ├─ "vite" or               → Vite .tsx
    │   │         │  "@vitejs/plugin-react"     preview: read scripts.dev → npm run dev
    │   │         └─ neither                 → Generic React .tsx
    │   │
    │   └─ no → non-React branch:
    │           ├─ "vue" present?             → Vue 3 .vue SFC
    │           │                               <script setup> + <template> + <style scoped>
    │           │                               preview: npm run dev (Vite assumed)
    │           ├─ "astro" present?           → Astro .astro component
    │           │                               frontmatter + HTML template
    │           │                               no client-side JS unless :is="client:load"
    │           ├─ "svelte" or               → Svelte .svelte component
    │           │  "@sveltejs/kit" present?     <script> + markup + <style>
    │           │                               SvelteKit if @sveltejs/kit detected
    │           └─ none of the above         → HTML (zero-dep default)

Step 3: Check for animation library (React branch only)

• "framer-motion" or "motion" in deps → use Framer Motion (motion.div, AnimatePresence, useInView)
• Not found → CSS animations only — do not import Framer Motion (missing package = runtime error)

Step 4: Apply user override

Explicit user instruction always wins over detection:

Step 5: Announce the format

Print one line before generating:

✦ Output format: Next.js .tsx — detected next in package.json
✦ Output format: Vue 3 SFC .vue — detected vue in package.json
✦ Output format: Astro .astro — detected astro in package.json
✦ Output format: Svelte .svelte — detected @sveltejs/kit in package.json
✦ Output format: Interactive HTML — no framework detected in cwd
✦ Output format: React .tsx — user requested --react

Edge cases:

• .tsx files exist but no react key → HTML output (Preact/Solid/stale files don't count)
• Both vue and nuxt detected → treat as Nuxt 3 (same SFC format, note useNuxtApp available)
• Monorepo: check cwd only, never traverse to parent package.json
• Multiple frameworks in same package.json (unusual) → print ambiguity warning, ask user to pass --[framework]

Framework Output Templates

Each framework has its own file template, preview command, and import note.

Next.js App Router

// variant-output/VariantA.tsx
// Generated by variant-design — move to app/components/ or src/components/
// Preview: npm run dev (then import this component in your page)
"use client"; // include when component uses hooks, animations, or browser APIs

import { useState, useEffect, useRef } from "react";
// import { motion } from "framer-motion"; // only if framer-motion detected

export default function VariantA() {
  // ...
}

Preview instruction after writing file:

✦ Written: variant-output/VariantA.tsx
  Move to app/components/VariantA.tsx, then import in your page:
  import VariantA from "@/components/VariantA"
  Preview: npm run dev

Vite React

// variant-output/VariantA.tsx
// Generated by variant-design — move to src/components/
// Preview: npm run dev (Vite), then import this component

import { useState, useEffect, useRef } from "react";

export default function VariantA() {
  // ...
}

Preview: read package.json scripts → use npm run dev / pnpm dev / yarn dev based on detected package manager. Fallback: npx vite.

Generic React

Same as Vite template without Vite-specific notes. Preview: npx vite as fallback.

Vue 3 SFC

<!-- variant-output/VariantA.vue -->
<!-- Generated by variant-design — move to src/components/ -->
<!-- Preview: npm run dev -->

<script setup lang="ts">
import { ref, onMounted } from "vue";
// animations: use CSS transitions/animations (no framer-motion in Vue)
// for complex motion: @vueuse/motion or vanilla CSS
</script>

<template>
  <div class="variant-a">
    <!-- ... -->
  </div>
</template>

<style scoped>
/* OKLCH colors as CSS custom properties */
.variant-a {
  --color-primary: oklch(65% 0.2 250);
  /* ... */
}
</style>

Vue rules:

• <script setup> always — no Options API
• lang="ts" unless project has no TypeScript
• Animations via CSS transitions + v-enter-active / v-leave-active transition classes
• No Framer Motion — Vue has its own <Transition> and <TransitionGroup>
• Reactivity: ref() for primitives, reactive() for objects, computed() for derived state

Astro Component

---
// variant-output/VariantA.astro
// Generated by variant-design — move to src/components/ or src/pages/
// Preview: npm run dev

// Astro components have no client-side reactivity by default
// Use client:load / client:visible for interactive islands
interface Props {
  title?: string;
}
const { title = "Default Title" } = Astro.props;
---

<section class="variant-a">
  <!-- ... -->
</section>

<style>
  /* Scoped by default in Astro */
  .variant-a {
    --color-primary: oklch(65% 0.2 250);
  }
</style>

<!-- Add client:load only for interactive sections -->
<!-- <InteractiveIsland client:load /> -->

Astro rules:

• Frontmatter (---) for server-side logic only — no useState, no useEffect
• Styles scoped by default — no need for CSS modules
• Interactive sections: extract to a separate .tsx / .vue / .svelte island, import with client:load or client:visible
• No JavaScript in <script> unless truly necessary — Astro ships zero JS by default

Svelte / SvelteKit

<!-- variant-output/VariantA.svelte -->
<!-- Generated by variant-design — move to src/lib/components/ -->
<!-- Preview: npm run dev -->

<script lang="ts">
  import { onMount } from "svelte";
  // animations: svelte/transition and svelte/animate built-in
  import { fade, fly, slide } from "svelte/transition";
  import { tweened } from "svelte/motion";

  let visible = false;
  onMount(() => { visible = true; });
</script>

<div class="variant-a">
  {#if visible}
    <section transition:fly={{ y: 20, duration: 400 }}>
      <!-- ... -->
    </section>
  {/if}
</div>

<style>
  .variant-a {
    --color-primary: oklch(65% 0.2 250);
  }
</style>

Svelte rules:

• Use built-in svelte/transition and svelte/animate — no Framer Motion
• tweened() and spring() from svelte/motion for number animations (counters, progress bars)
• {#if} / {#each} / {#await} blocks — no JSX
• Reactivity is assignment-based: count += 1 triggers re-render automatically
• SvelteKit: routes in src/routes/, components in src/lib/components/

Output Convention

File naming: variant-[scenario]-[variation].html (e.g., variant-dashboard-A.html)

Output directory: Write to ./variant-output/ in the current working directory. Create the directory if it doesn't exist. This keeps design files separate from project source code.

variant-output/
├── variant-dashboard-A.html
├── variant-dashboard-B.html
├── variant-dashboard-C.html
└── tokens/
    └── dashboard-A-tokens.css    (when user extracts tokens)

Iteration files: On variation actions, overwrite the same file (e.g., variant-dashboard-A.html) rather than creating variant-dashboard-A-v2.html. The user is iterating on one design, not collecting versions. Git handles history.

Auto-Preview

After every file write, immediately open it in the user's default browser:

# macOS
open variant-output/variant-dashboard-A.html

# Linux
xdg-open variant-output/variant-dashboard-A.html

This is non-negotiable. The user should never have to manually find and open the file. When iterating (Vary subtle, Remix colors, etc.), the browser tab auto-refreshes because the file is overwritten — just re-run open to bring it to focus.

Live Preview Server (Optional)

If the user asks for live preview or says "watch mode", start a lightweight file server with auto-reload:

# Using Python (available on most systems)
cd variant-output && python3 -c "
import http.server, socketserver, os, time, threading

class ReloadHandler(http.server.SimpleHTTPRequestHandler):
    def end_headers(self):
        self.send_header('Cache-Control', 'no-store')
        super().end_headers()

    def do_GET(self):
        if self.path == '/_poll':
            self.send_response(200)
            self.send_header('Content-type', 'text/plain')
            self.end_headers()
            self.wfile.write(str(os.path.getmtime('.')).encode())
            return
        super().do_GET()

with socketserver.TCPServer(('', 3333), ReloadHandler) as httpd:
    print('Preview: http://localhost:3333')
    httpd.serve_forever()
" &

Then inject a tiny auto-reload script at the bottom of every generated HTML:

<script>
// Auto-reload in dev (remove for production)
(async function poll() {
  try {
    const r = await fetch('/_poll');
    const t = await r.text();
    if (window._lastMod && t !== window._lastMod) location.reload();
    window._lastMod = t;
  } catch(e) {}
  setTimeout(poll, 800);
})();
</script>

Only include this script when the preview server is running. Remove it on export.

Compact CLI Output

Terminal space is precious. Keep text responses short and structured:

On initial generation (3 variations):

✦ Detected: coffee brand landing page → loading food-beverage.md + micro-interactions.md

  A — Terroir Warm       Fraunces + Instrument Sans    Minimal/Editorial
  B — Espresso Dark      DM Serif Display + DM Sans    Dark/Premium
  C — Fresh Market       Crimson Pro + Plus Jakarta     Warm/Human

  Interactions: scroll reveal, counter animation, card lift, filter chips, lightbox

  Files written:
    variant-output/variant-coffee-A.html  ← opened in browser
    variant-output/variant-coffee-B.html
    variant-output/variant-coffee-C.html

  Pick a variation to iterate, or an action:
  Reshape — Vary strong · Distill · Shuffle layout · Change style
  Tune    — Vary subtle · Remix colors · Mix (A+B)
  Animate — Add motion · Dramatize · Make interactive
  Refine  — Polish · Critique · See other views
  Export  — Extract tokens · react A · react B · react C

After initial generation, write context with detected scenario, the chosen palettes, and fonts for all 3 variations. Do not write picked yet — user hasn't chosen.

On iteration:

✦ Variation A — Vary subtle · iteration 2  [Terroir Warm · Editorial]

  Changed: tightened spacing to 4pt grid, added tabular-nums on stats,
  hover now lifts 4px→6px with shadow, scroll stagger 60ms→80ms

  variant-output/variant-coffee-A.html  ← updated & opened

  Next action? (react A to export as React component)

After each iteration, update context: increment iterations, update picked if the user is iterating on a specific variation (implies selection).

Never dump the full HTML in the chat. Write to file, open in browser, show a 2-3 line summary of what changed. The user reads code in their editor, not in the terminal.

Quick Triggers

Support shorthand prompts for fast iteration in the terminal:

Context Commands

show context — Print the current context:

cat ./variant-output/.variant-context.json 2>/dev/null || echo "(no context saved yet)"

Display as a formatted single-line summary, e.g.:

✦ Context: Amber Warm · Editorial · Instrument Serif + Instrument Sans · picked B · 4 iterations
  Framework: next · Scenario: landing-page
  Notes: user prefers high contrast, no dark mode

reset context — Delete the context file and confirm:

rm -f ./variant-output/.variant-context.json

Print: ✦ Context cleared — next generation starts fresh.

Comparison View

When the user says "compare" or wants to see all variations together, generate a single variant-output/_compare.html that displays all 3 side-by-side in iframes:

<style>
  body { margin:0; display:grid; grid-template-columns:1fr 1fr 1fr; height:100vh; gap:2px; background:#111; }
  iframe { width:100%; height:100%; border:none; }
  .label { position:absolute; top:8px; left:12px; background:#111; color:#fff; padding:4px 12px;
    font:12px/1 monospace; border-radius:4px; z-index:10; }
  .frame { position:relative; }
</style>
<div class="frame"><span class="label">A</span><iframe src="variant-coffee-A.html"></iframe></div>
<div class="frame"><span class="label">B</span><iframe src="variant-coffee-B.html"></iframe></div>
<div class="frame"><span class="label">C</span><iframe src="variant-coffee-C.html"></iframe></div>

Framework Export

When the user says "export to [framework]" or react [A/B/C], transform the winning variation into the target structure:

Always ask which variation to export if the user hasn't picked one yet.

Preview after React export: Do not run vite --open directly — it may bypass project config. Instead, read package.json.scripts and print the correct dev command:

• If scripts contains "dev" → print npm run dev (or pnpm dev / yarn dev / bun dev based on detected package manager)
• If scripts contains "start" → print npm start
• If no scripts found → print npx vite as fallback, with a note

Example output after React export:

✦ Exported: variant-output/VariantA.tsx
  Move to src/components/ to include in your project's build.
  Preview: npm run dev  (then open the page that imports this component)

Clipboard Mode

If the user says "copy" or "clipboard", copy the HTML to system clipboard instead of (or in addition to) writing the file:

# macOS
cat variant-output/variant-coffee-A.html | pbcopy

Useful for pasting into CodePen, Claude.ai artifacts, or other tools.

Mode 0 — Design Declaration (product-critical UI)

Use this layer before visual generation for a new product, a workflow redesign, or any page involving user trust, money, privacy, irreversible actions, or AI-generated conclusions. It is not a PRD and does not replace the existing Design Read: Design Read confirms the prompt; this declaration locks the human product judgments that the skill must not invent.

Skip only for an explicitly exploratory visual exercise (surprise me, poster, moodboard, or brand exploration). Label that output: exploratory — no product decision locked.

Minimal declaration

Ask at most two questions total; first infer from the README, product copy, flows, and existing UI. Mark unconfirmed fields as assumption, never as research fact.

design_declaration:
  user_context: [who, in what moment]
  primary_job: [the one task this page/flow must complete]
  success_moment: [when the user has clearly received value]
  trust_boundary: [uncertain data, payment, deletion, privacy, financial/medical risk]
  hierarchy: [one must-see item, then at most three secondary items]
  chosen_tension: [e.g. evidence > delight; speed > exploration]
  non_negotiables: [maximum three]
  evidence_status: [real | mock-clearly-labeled | unknown]

Read references/design-declaration.md whenever this mode applies.

Product Integrity Contract

When a design system is confirmed, compile the declaration into variant-output/design-contract.md; read it before every Generate, Component, Compose, Analyze, or UX Review action. The contract has priority over aesthetic defaults.

Must: make the primary job and one primary CTA legible in the first view; make trust boundaries explicit through source/state/confirmation/undo/limits; include loading, empty, error, and success behavior; use confirmed tokens.

Must not: mix real, mock, and AI-inferred data without labels; conceal price, risk, source, recovery, or irreversible consequences; create competing primary CTAs; add decoration that contradicts hierarchy.

After ds confirm, the declaration is frozen alongside the system. Variations may change layout and information organization, but must not silently change primary_job, trust_boundary, or non_negotiables.

Project Context Initialization

Session Start: Read Persisted Context

Before doing anything else, check for a context file in the output directory:

cat ./variant-output/.variant-context.json 2>/dev/null

If the file exists and is valid JSON, load it silently and print one line:

✦ Resuming context: [palette] · [direction] · picked [variation] · iteration [n]
  (reset context to start fresh)

Use all fields as constraints for the current session — the user should not need to re-specify preferences they've already confirmed.

If the file does not exist, proceed to the first-use questions below.

First Use: Gather Context

On first use in a project, gather design context to ground all future generations. Ask the user:

1. Users & Purpose — Who uses this? What problem does it solve? What's the core task?
2. Brand & Personality — Existing brand colors? Tone (playful / serious / technical / warm)? Any sites you admire?
3. Aesthetic Preferences — Light or dark? Minimal or dense? Any direction from the aesthetic table you're drawn to?
4. Constraints — Framework requirements? Accessibility standards beyond baseline? Target devices?

If the user can't answer, infer from their codebase: scan for existing color variables, font imports, component patterns, and README/brand docs. Confirm inferences before proceeding.

Persist Context After Each Decision

Write ./variant-output/.variant-context.json whenever the user makes a meaningful choice. Create variant-output/ first if it doesn't exist.

Schema:

{
  "palette": "Amber Warm",
  "fonts": ["Instrument Serif", "Instrument Sans"],
  "direction": "Editorial",
  "scenario": "landing-page",
  "picked": "B",
  "iterations": 3,
  "framework": "next",
  "notes": "user prefers high contrast, no dark mode",
  "designDeclaration": {
    "user_context": "...",
    "primary_job": "...",
    "success_moment": "...",
    "trust_boundary": "...",
    "hierarchy": ["..."],
    "chosen_tension": "evidence > delight",
    "non_negotiables": ["..."],
    "evidence_status": "mock-clearly-labeled",
    "frozenAt": "2026-08-13T10:00:00Z"
  },
  "designSystem": {
    "confirmed": true,
    "file": "variant-output/design-system.css",
    "palette": "Amber Warm",
    "fonts": ["DM Sans", "Newsreader"],
    "confirmedAt": "2026-05-27T10:00:00Z"
  },
  "components": {
    "button": "variant-output/component-button.html",
    "card":   "variant-output/component-card.html",
    "form":   "variant-output/component-form.html"
  }
}

designSystem.confirmed: true is the gating flag. When true, all Generate/Component/Compose outputs read variant-output/design-system.css and must not introduce tokens outside it. When absent or false, full aesthetic invention is allowed.

When to update:

• After user picks a palette or confirms a direction → update palette, direction, fonts
• After user says pick A/B/C → update picked
• After each variation action (vary, remix, shuffle) → increment iterations
• After scenario is detected and confirmed → update scenario
• After framework is detected → update framework
• After user gives a preference constraint → append to notes
• After Design Declaration is confirmed → write designDeclaration; after ds confirm, add frozenAt and generate variant-output/design-contract.md
• After ds confirm → write designSystem object with confirmed: true, file, palette, fonts, confirmedAt
• After each component [name] build → add entry to components map
• After ds reset → set designSystem.confirmed: false, clear components

Fields are optional — write only what's known. Do not guess or fill in defaults.

Write the file silently (no terminal output). If write fails (e.g. no write permission), continue silently — context persistence is best-effort, never blocking.

Site Analysis Mode

When the user points to existing code (file paths, a directory, or says "analyze/audit/check my site"), switch from generation mode to analysis mode. Load references/design-system/style-audit.md for the full methodology.

Triggers

Analysis Workflow

Step 1: Scan — Read the files the user points to. If no specific files given, scan for:

# Auto-detect entry points
find . -name "*.html" -o -name "*.css" -o -name "*.tsx" -o -name "*.jsx" \
  -o -name "*.vue" -o -name "*.svelte" | head -20
# Also check for:
# - tailwind.config.* (Tailwind projects)
# - globals.css / index.css / app.css (common entry CSS)
# - tokens.css / variables.css / theme.* (existing token files)

Step 2: Extract — Pull all design primitives following the Token Extraction schema in style-audit.md: colors, typography, spacing, components, transitions. Group by semantic role.

Step 3: Detect — Run all consistency checks from style-audit.md Section 2. For each finding, record severity (error/warning/info), the specific values, file locations, and a concrete fix.

Step 3.5: Visual Quality Audit — In addition to consistency checks from style-audit.md, run this anti-slop checklist. Flag any item that fails with severity warning or error:

Typography

• Display font is NOT Inter/Roboto/Arial/Open Sans — use something with character
• Headlines have presence: tight tracking, compressed line-height, strong weight contrast
• Body text max-width ~65ch; line-height ≥ 1.5
• Weight range uses at least 3 stops (e.g. 400 / 500 / 700) — not just Regular + Bold
• Numbers in data contexts use font-variant-numeric: tabular-nums or monospace
• No orphaned single words on last line — use text-wrap: balance / text-wrap: pretty
• Headers use sentence case — not Title Case On Every Word

Color & Surfaces

• No pure #000000 background — use off-black / dark charcoal / tinted dark
• Accent saturation below 80% — no neon or screaming accents
• Only one accent color — remove all others
• Grays are from one family — no mixing warm and cool grays
• No purple-to-blue "AI gradient" aesthetic
• Shadows are tinted to match background hue — not pure black at low opacity
• No random isolated dark section in a light-mode page (or vice versa)

Layout

• Not everything centered and symmetrical — break with offset, left-align, or asymmetry
• No 3 equal-column feature card row — use zig-zag, asymmetric grid, or horizontal scroll
• Uses min-height: 100dvh not height: 100vh (iOS Safari viewport jump)
• Has max-width container constraint — content doesn't stretch edge-to-edge
• Cards vary in size or weight — not uniformly identical
• Card group CTAs pin to bottom so buttons align across variable-length cards

Interactivity & States

• All buttons/links/cards have hover state (not just opacity: 0.8)
• Active/pressed feedback: scale(0.98) or translateY(1px)
• Transitions have non-zero duration (200-300ms)
• Visible :focus-visible ring — never outline: none alone
• Loading state exists — skeleton loaders, not generic spinners
• Empty state has content: acknowledge → explain value → CTA
• Error state has inline message — no window.alert()

Content

• No generic names: John Doe, Acme Corp, Nexus, SmartFlow
• No fake round numbers: 99.99%, $100.00, 50,000 users
• No AI clichés: Elevate, Seamless, Unleash, Next-Gen, Game-changer, Delve
• No Lorem Ipsum
• No exclamation marks in success/confirmation messages
• No passive voice in errors

Iconography

• Not using only Lucide/Feather icons — consider Phosphor or Radix UI Icons
• Consistent stroke width across all icons
• Favicon exists

Code Quality

• Semantic HTML: <nav>, <main>, <article>, <section> — not div soup
• No arbitrary z-index values (9999)
• All <img> have meaningful alt text
• Animations use only transform and opacity — no top/left/width/height

Score: subtract 2 points per failed item from 100. Present as Quality Score: XX/100.

Step 4: Report — Present findings using the compact terminal format from style-audit.md Section 3. Score out of 100. List priority fixes.

Step 5: Act — Based on what the user wants:

• Audit only: Stop after the report. Offer to generate a token file or migration plan.
• Extract tokens: Generate a tokens.css file consolidating all values (see style-audit.md Section 4).
• Generate matching page: Lock extracted tokens as constraints, generate new pages that match (see below).
• Migration plan: Generate phased checklist for consolidating the codebase (see style-audit.md Section 6).

Style-Matched Generation

When generating new pages for an existing project, the workflow changes:

1. Extract first — Always analyze existing code before generating. Never guess the style.
2. Lock tokens — All generated code must use var(--*) referencing the existing token system. If no token system exists, generate one first and get user approval.
3. Match patterns — Study existing component shapes (card radius, shadow, padding), interaction patterns (transition durations, hover effects), layout patterns (container width, grid), and naming conventions (BEM, Tailwind, CSS modules).
4. Show diff from existing — In the Summary Card, note which tokens/patterns are being reused vs. which are new additions.
5. Flag deviations — If the design system principles (from Impeccable) conflict with the existing style, flag it: "Your existing buttons have no hover state — I've added one following your color palette. OK?"

Summary Card for style-matched generation:

✦ New page: /pricing — matching existing site style

  Reusing: --bg, --surface, --card, --border, --text, --muted, --accent
  Reusing: Plus Jakarta Sans 400/600, 4 font sizes, 8px grid
  Reusing: .card (24px padding, 8px radius, 1px border)
  Reusing: .btn (100px radius, 200ms transition)

  New additions:
  + Pricing toggle (monthly/annual) — uses existing .btn style
  + FAQ accordion — uses existing .card + new grid height animation
  + Comparison table — new component, follows existing spacing/color

  File: variant-output/pricing-matched.html ← opened in browser

Quick Triggers for Analysis

UX Review Mode

When the user wants to evaluate usability rather than generate visuals, switch to UX Review mode. Load references/ux-heuristics.md and references/ux-psychology.md. Load additional references as the review scope demands (see "When to Load Which Reference" below).

Triggers

UX Review Workflow

Two paths depending on what's available:

• Code in cwd → run Code Scan (Steps 1a–1b) first, then layer conceptual analysis
• No code / screenshots / description only → skip to Step 2

Step 1a: Auto-detect project files

# Find component files in cwd (skip node_modules, .git, dist)
find . \( -name "*.tsx" -o -name "*.jsx" -o -name "*.vue" -o -name "*.svelte" -o -name "*.html" \) \
  -not -path "*/node_modules/*" -not -path "*/.git/*" -not -path "*/dist/*" | head -30

If files found, proceed to Step 1b. Otherwise skip to Step 2.

Step 1b: Code-level heuristic scan

Run these greps against the found files. Each maps to a specific heuristic:

# H9 — Generic error messages (critical pattern)
grep -rn "error occurred\|something went wrong\|invalid input\|please try again\|An error\|Unknown error" \
  --include="*.tsx" --include="*.jsx" --include="*.vue" --include="*.html" \
  --exclude-dir=node_modules --exclude-dir=dist . 2>/dev/null

# H1 — Missing loading states: async handlers without loading flag
grep -rn "onClick\|onSubmit\|handleSubmit" \
  --include="*.tsx" --include="*.jsx" --exclude-dir=node_modules . 2>/dev/null | head -20
# (then read those files to check if loading/disabled state is managed)

# H3 — Destructive actions: delete/remove calls without confirmation guard
grep -rn "delete\|remove\|destroy\|clearAll\|reset" \
  --include="*.tsx" --include="*.jsx" -i --exclude-dir=node_modules . 2>/dev/null | \
  grep -iv "confirm\|modal\|dialog\|undo\|trash\|soft" | head -20

# H4 — Terminology inconsistency: mixed action words for same concept
grep -rn '"Delete"\|"Remove"\|"Erase"\|"Discard"\|"Clear"' \
  --include="*.tsx" --include="*.jsx" --exclude-dir=node_modules . 2>/dev/null
# Flag if multiple terms coexist in same codebase

# H6 — Icon-only buttons missing accessible label
grep -rn "<button\|<Button\|<IconButton" \
  --include="*.tsx" --include="*.jsx" --exclude-dir=node_modules . 2>/dev/null | \
  grep -v "aria-label\|title=\|children\|tooltip" | head -20

# H5 — Forms missing inline validation
grep -rn "<form\|<Form\|onSubmit" \
  --include="*.tsx" --include="*.jsx" --exclude-dir=node_modules . 2>/dev/null | head -10
# (then read those files to check for inline validation vs. submit-only)

# H10 — Empty states: no empty state handling
grep -rn "\.length === 0\|\.length == 0\|items\.length\|data\.length" \
  --include="*.tsx" --include="*.jsx" --exclude-dir=node_modules . 2>/dev/null | \
  grep -v "EmptyState\|empty\|nothing\|no items\|no results" | head -15

# A11y — Images missing alt text
grep -rn "<img " \
  --include="*.tsx" --include="*.jsx" --include="*.html" \
  --exclude-dir=node_modules . 2>/dev/null | grep -v "alt=" | head -10

# A11y — Buttons missing accessible name (icon-only)
grep -rn "<button\|<Button\|<IconButton" \
  --include="*.tsx" --include="*.jsx" --exclude-dir=node_modules . 2>/dev/null | \
  grep -v "aria-label\|aria-labelledby\|title=" | head -15

# A11y — onClick on non-interacti

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