---
phase: 25-template-explorer-ui
plan: 01
subsystem: ui
tags: [templates, quickstart, react, tailwind]

# Dependency graph
requires:
  - phase: 24-improved-cost-summary
    provides: Cost tracking infrastructure
provides:
  - TemplateMetadata interface for template categorization
  - TemplateCard component for card-based template display
  - TemplateExplorerView component with grid layout
affects: [template-preview, welcome-modal]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - Card-based template layout with metadata badges
    - Category color coding for visual differentiation

key-files:
  created:
    - src/components/quickstart/TemplateCard.tsx
    - src/components/quickstart/TemplateExplorerView.tsx
  modified:
    - src/types/quickstart.ts
    - src/lib/quickstart/templates.ts

key-decisions:
  - "Category color scheme: blue=product, purple=style, green=composition, amber=community"
  - "Grid layout 2 cols on mobile, 3 cols on larger screens"
  - "Node count calculated from workflow.nodes.length at runtime"

patterns-established:
  - "TemplateMetadata pattern for template categorization"
  - "Card component with category badges and tag pills"

issues-created: []

# Metrics
duration: 8min
completed: 2026-01-16
---

# Phase 25 Plan 01: Template Explorer UI Components Summary

**Template card and grid layout components with category/tag metadata for scalable template browsing**

## Performance

- **Duration:** 8 min
- **Started:** 2026-01-16T18:30:00Z
- **Completed:** 2026-01-16T18:38:00Z
- **Tasks:** 3
- **Files modified:** 4

## Accomplishments

- Extended template types with TemplateMetadata interface (nodeCount, category, tags)
- Created TemplateCard component with card layout, metadata badges, and tag pills
- Created TemplateExplorerView with responsive grid layout for preset and community templates

## Task Commits

Each task was committed atomically:

1. **Task 1: Extend template types with rich metadata** - `94e1716` (feat)
2. **Task 2: Create TemplateCard component** - `2b96054` (feat)
3. **Task 3: Create TemplateExplorerView with grid layout** - `09457d5` (feat)

**Note:** Also fixed pre-existing blocking issue from Phase 24-01 - `18c3bf2` (fix: costCalculator type migration)

## Files Created/Modified

- `src/types/quickstart.ts` - Added TemplateCategory type and TemplateMetadata interface
- `src/lib/quickstart/templates.ts` - Added category/tags to PresetTemplate, getTemplateMetadata()
- `src/components/quickstart/TemplateCard.tsx` - New card component with metadata display
- `src/components/quickstart/TemplateExplorerView.tsx` - New grid layout with template fetching

## Decisions Made

- Category color scheme: blue for product, purple for style, green for composition, amber for community
- Grid layout: 2 columns on mobile, 3 columns on lg+ screens
- Node count calculated dynamically from workflow.nodes.length
- Tags limited to 4 displayed per card for visual consistency

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 3 - Blocking] Fixed costCalculator multi-provider type migration**
- **Found during:** Build verification
- **Issue:** Phase 24-01 incomplete - calculatePredictedCost returned old format, PredictedCostResult expected CostBreakdownItem[]
- **Fix:** Updated calculatePredictedCost to produce CostBreakdownItem format with provider, modelId, modelName fields
- **Files modified:** src/utils/costCalculator.ts
- **Verification:** npm run build passes
- **Committed in:** 18c3bf2

---

**Total deviations:** 1 auto-fixed (blocking issue from prior phase), 0 deferred
**Impact on plan:** Fix was necessary to unblock build. No scope creep.

## Issues Encountered

None - plan executed smoothly after blocking issue resolved.

## Next Phase Readiness

- Template card and grid layout components ready
- Ready for Plan 02 to add sidebar filters (search, category, tags) and WelcomeModal integration
- TemplateExplorerView can replace QuickstartTemplatesView once integrated

---
*Phase: 25-template-explorer-ui*
*Completed: 2026-01-16*