UI Scanner

Skill: UI Scanner

This skill analyzes the project's existing UI and generates a project-specific contextual skill to guide new development.

When to use

• Before starting development on an existing project (/pwdev-uiux:scan)
• When the ui-builder needs real project context
• For consistency auditing of the existing design system
• To map what exists before deciding what to build

What it produces

Generates .planning/ui/project-ui-skill.md — contextual skill with:

• Confirmed Vue stack and actual versions
• Project custom CSS tokens
• Inventory of installed shadcn-vue components
• Mapped product components
• Identified code patterns (SFC style, form pattern, etc.)
• Naming conventions
• Visual observations (when browser is available)
• Inconsistencies to avoid repeating

Execution protocol

Step 1 — Verify project structure

# Directory structure
find . -maxdepth 3 -type d | grep -v node_modules | grep -v .git | sort

# Installed stack
cat package.json | python3 -m json.tool 2>/dev/null | grep -A2 '"dependencies"'

Step 2 — Analyze components

# Total SFCs
find . -name "*.vue" | grep -v node_modules | wc -l

# Installed shadcn-vue components
ls components/ui/ 2>/dev/null || ls src/components/ui/ 2>/dev/null

# Product components (sample)
find components/ src/components/ -name "*.vue" 2>/dev/null | \
  grep -v "/ui/" | head -20

# Read 3-5 representative components to understand patterns

Step 3 — Extract tokens

# globals.css or app.css or assets/
find . -name "*.css" | grep -v node_modules | xargs grep "^--" 2>/dev/null | head -40

# tailwind.config
cat tailwind.config.ts 2>/dev/null || cat tailwind.config.js 2>/dev/null

Step 4 — Check browser (if available)

# Dev server running?
PORT=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:3000 2>/dev/null)
PORT5173=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:5173 2>/dev/null)
echo "3000: $PORT, 5173: $PORT5173"

If accessible, analyze visually via WebFetch.

Step 5 — Generate skill

Write result to .planning/ui/project-ui-skill.md following the template documented in the ui-scanner agent.

Usage example

/pwdev-uiux:scan                    # Scan current project
/pwdev-uiux:scan http://localhost:3000/dashboard  # Focus on a specific route
/pwdev-uiux:scan --visual-only      # Visual analysis only (no code)
/pwdev-uiux:scan --code-only        # Code analysis only (no browser)

Expected output

✅ UI Scanner completed

Project: [name]
Vue Components: 47
shadcn-vue installed: 18/58 available
Custom tokens found: 12
Patterns identified: script setup TS, vee-validate, composables per feature

Skill generated at: .planning/ui/project-ui-skill.md
The ui-builder will use this skill as a reference for new components.

Next step: /pwdev-uiux:start "description of the new feature"