variant-analyze: Security & Code Review for AI Agents | OpenAgentSkill

Overview

Audit existing sites, extract design tokens, generate style-matched pages. Runs consistency checks and Visual Quality Audit (40-item anti-slop checklist, Quality Score XX/100). Triggers on: analyze my site, audit this, match this style, extract tokens, what's wrong with this design, migrate, add a page to my site, compare old new

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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

User says	Action
"analyze my site" / "audit this" / "check consistency"	Full style audit → report
"match this style" / "follow existing design" / "extend my site"	Extract tokens → generate matching pages
"extract tokens" (on existing files, not a generated variation)	Token extraction → CSS custom properties file
"what's wrong with this design" / "review my CSS"	Style consistency check → findings list
"migrate" / "consolidate" / "clean up"	Audit → token generation → migration plan
"add a [page] to my site" / "new page matching my existing design"	Extract → match → generate

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:

Extract first — Always analyze existing code before generating. Never guess the style.
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.
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).
Show diff from existing — In the Summary Card, note which tokens/patterns are being reused vs. which are new additions.
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

User types	Action
`audit`	Full style audit on current project
`audit src/styles/`	Audit specific directory
`tokens`	Extract tokens from existing code → CSS file
`match`	Enter style-matched generation mode
`new page pricing`	Generate /pricing page matching existing style
`migrate`	Generate migration plan for token consolidation
`compare old new`	Side-by-side: existing page vs. redesigned version

View source ↗

File metadata

name: variant-analyze
description: Audit existing sites, extract design tokens, generate style-matched pages. Runs consistency checks and Visual Quality Audit (40-item anti-slop checklist, Quality Score XX/100). Triggers on: analyze my site, audit this, match this style, extract tokens, what's wrong with this design, migrate, add a page to my site, compare old new

View original text

---
name: variant-analyze
description: Audit existing sites, extract design tokens, generate style-matched pages. Runs consistency checks and Visual Quality Audit (40-item anti-slop checklist, Quality Score XX/100). Triggers on: analyze my site, audit this, match this style, extract tokens, what's wrong with this design, migrate, add a page to my site, compare old new
---

## 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

| User says | Action |
|---|---|
| "analyze my site" / "audit this" / "check consistency" | Full style audit → report |
| "match this style" / "follow existing design" / "extend my site" | Extract tokens → generate matching pages |
| "extract tokens" (on existing files, not a generated variation) | Token extraction → CSS custom properties file |
| "what's wrong with this design" / "review my CSS" | Style consistency check → findings list |
| "migrate" / "consolidate" / "clean up" | Audit → token generation → migration plan |
| "add a [page] to my site" / "new page matching my existing design" | Extract → match → generate |

### Analysis Workflow

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

| User types | Action |
|---|---|
| `audit` | Full style audit on current project |
| `audit src/styles/` | Audit specific directory |
| `tokens` | Extract tokens from existing code → CSS file |
| `match` | Enter style-matched generation mode |
| `new page pricing` | Generate /pricing page matching existing style |
| `migrate` | Generate migration plan for token consolidation |
| `compare old new` | Side-by-side: existing page vs. redesigned version |

Review the source

Skill source recorded

Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.

Review before install: Avoid automatic install

License: MIT

Dependency or permission surface needs review
Permission surface may require sandboxing
Low GitHub adoption signal
AI review approval is missing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
GitHub adoption: 46 GitHub stars
Stars/forks activity: 46 stars, 0 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution
Review status: AI review approval is missing

Open full audit

Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.

Start with one small task

1Read the source. Confirm the input, expected output, dependencies and permissions.
2Ask your agent for a plan. Approve setup and any costs before running a small isolated test.
3

Source & usage notes

IndexedStatic Checked

Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

Source repository: YuqingNicole/variant-design-skill
License: MIT
Version: Unknown
Last GitHub push: Aug 13, 2026
Registry updated: Sep 9, 2026
Instruction path: skills/variant-analyze/SKILL.md @ f6ca943b356b

Version reported in registry metadata; check source releases before relying on it.

Quality

55/100

Promising

Trust

56/100

Agent access

This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.

Open install API LLM text format Open manifest Auto-resolve Plan

More details

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  "audit": {
    "score": 68,
    "risk_level": "needs_review",
    "risk_label": "Needs review",
    "warnings": [
      "Dependency or permission surface needs review",
      "Permission surface may require sandboxing",
      "Low GitHub adoption signal",
      "AI review approval is missing",
      "Quality score needs review",
      "Permission surface needs review: secrets or environment access, shell or command execution",
      "GitHub adoption: 46 GitHub stars",
      "Stars/forks activity: 46 stars, 0 forks; issue activity unavailable in current metadata"
    ]
  },
  "safety_gate": {
    "tier": "blocked",
    "label": "Blocked for auto-install",
    "auto_install_policy": "block",
    "auto_install_allowed": false,
    "human_review_required": true,
    "blocked": true,
    "recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first."
  },
  "quality": {
    "score": 55,
    "label": "Promising"
  },
  "supply": {
    "track": "Research and knowledge work",
    "scenario": "Research agents",
    "maintenance": "1mo since push",
    "risk": "Needs review"
  },
  "alternative_skills": [],
  "do_not_use_when": [
    "teams that need a vendor-supported SLA",
    "production agents without a repository review",
    "Low GitHub adoption signal",
    "No OpenAgentSkill engagement data yet",
    "High-risk permission hints: Shell or command execution, Secrets or environment access",
    "Dependency or permission surface needs review",
    "Permission surface may require sandboxing",
    "AI review approval is missing"
  ],
  "agent_contract": {
    "task_input": "Use variant-analyze in an agent workflow",
    "recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first.",
    "install_policy": "block",
    "minimum_review_before_use": [
      "Trust: 64/100 Manual review",
      "Audit: 68/100 Needs review",
      "Safety: 20/100 Avoid automatic install",
      "Review repository, license, install command, and permission surface before production use."
    ],
    "expected_agent_output": {
      "selected_skill": "yuqingnicole-variant-analyze (variant-analyze)",
      "install_command": "npx skills add YuqingNicole/variant-design-skill --skill variant-analyze",
      "risk_summary": "Needs review; Blocked for auto-install; Review before production",
      "verification_result": "Report the smallest successful task, files touched, warnings, and any missing setup."
    }
  },
  "outcome_feedback": {
    "endpoint": "https://www.openagentskill.com/api/agent/outcome",
    "method": "POST",
    "requires_resolve_event_id": true,
    "event_id_source": "Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.",
    "expected_outcomes": [
      "success",
      "failed",
      "not_relevant",
      "blocked_by_risk",
      "setup_required"
    ],
    "payload_template": {
      "event_id": "<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>",
      "skill_slug": "yuqingnicole-variant-analyze",
      "task": "Use variant-analyze in an agent workflow",
      "agent": "codex",
      "outcome": "success",
      "install_used": true,
      "risk_blocked": false,
      "setup_required": false,
      "task_success": true,
      "output_quality": 4,
      "error_type": null,
      "human_review_required": false,
      "workspace": "sandbox",
      "time_to_useful_ms": 120000,
      "notes": "Report the smallest successful task, setup friction, files touched, and risk notes."
    }
  },
  "endpoints": {
    "web": "https://www.openagentskill.com/skills/yuqingnicole-variant-analyze",
    "api": "https://www.openagentskill.com/api/agent/skills/yuqingnicole-variant-analyze",
    "audit": "https://www.openagentskill.com/skills/yuqingnicole-variant-analyze/audit",
    "eval": "https://www.openagentskill.com/api/agent/evals?slug=yuqingnicole-variant-analyze&task=Use%20variant-analyze%20in%20an%20agent%20workflow&max_risk=medium",
    "resolve": "https://www.openagentskill.com/api/agent/resolve?task=Use%20variant-analyze%20in%20an%20agent%20workflow&agent=codex&max_risk=medium",
    "receipt": "https://www.openagentskill.com/api/agent/receipt?task=Use%20variant-analyze%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text",
    "install": "https://www.openagentskill.com/api/skills/yuqingnicole-variant-analyze/install",
    "manifest": "https://www.openagentskill.com/api/registry/manifest/yuqingnicole-variant-analyze"
  }
}

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Creator: YuqingNicole
Source: YuqingNicole/variant-design-skill
Indexed by: OpenAgentSkill community index

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