---
phase: 21
slug: item-catalog-detail-pages
status: draft
nyquist_compliant: false
wave_0_complete: false
created: 2026-04-06
---

# Phase 21 — Validation Strategy

> Per-phase validation contract for feedback sampling during execution.

---

## Test Infrastructure

| Property | Value |
|----------|-------|
| **Framework** | bun test + Playwright (E2E) |
| **Config file** | playwright.config.ts |
| **Quick run command** | `bun run lint` |
| **Full suite command** | `bun run lint && bun run build` |
| **Estimated runtime** | ~10 seconds |

---

## Sampling Rate

- **After every task commit:** Run `bun run lint`
- **After every plan wave:** Run `bun run lint && bun run build`
- **Before `/gsd:verify-work`:** Full suite + manual visual check
- **Max feedback latency:** 10 seconds

---

## Per-Task Verification Map

| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | Status |
|---------|------|------|-------------|-----------|-------------------|--------|
| 01-T1 | 21-01 | 1 | DETAIL-01, DETAIL-03 | lint+visual | `bun run lint` | ⬜ pending |
| 01-T2 | 21-01 | 1 | DETAIL-02 | lint+visual | `bun run lint` | ⬜ pending |
| 02-T1 | 21-02 | 1 | DETAIL-04 | lint+visual | `bun run lint` | ⬜ pending |
| 02-T2 | 21-02 | 1 | DETAIL-04 | lint+visual | `bun run lint` | ⬜ pending |
| 03-T1 | 21-03 | 2 | DETAIL-04 | lint+grep | `bun run lint` | ⬜ pending |
| 03-T2 | 21-03 | 2 | DETAIL-05 | lint+grep | `bun run lint` | ⬜ pending |

---

## Manual-Only Verifications

| Behavior | Requirement | Why Manual | Test Instructions |
|----------|-------------|------------|-------------------|
| Item detail page renders with correct data | DETAIL-01 | Visual layout | Navigate to /items/:id, verify hero image, specs, notes |
| Edit mode toggle works | DETAIL-03 | Visual interaction | Click Edit, verify fields become editable, save changes |
| Catalog detail page with Add button | DETAIL-02 | Visual layout | Navigate to /global-items/:id, verify Add button present |
| Candidate detail page in thread context | DETAIL-04 | Visual navigation | Click candidate in thread, verify detail page |
| Panels removed from UI | DETAIL-05 | Visual absence | Verify no slide-out panels appear anywhere |

---

## Validation Sign-Off

- [x] All tasks have automated verify (lint)
- [x] Sampling continuity maintained
- [ ] Manual visual verification pending
- [ ] `nyquist_compliant: true` set in frontmatter

**Approval:** pending