---
phase: 30
slug: hardware-detection-mode-selection
status: draft
nyquist_compliant: false
wave_0_complete: false
created: 2026-04-02
---

# Phase 30 — Validation Strategy

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

---

## Test Infrastructure

| Property | Value |
|----------|-------|
| **Framework** | vitest |
| **Config file** | server/vitest.config.ts |
| **Quick run command** | `cd server && npx vitest run --reporter=verbose src/services/hardware-detection.test.ts` |
| **Full suite command** | `cd server && npx vitest run --reporter=verbose` |
| **Estimated runtime** | ~15 seconds |

---

## Sampling Rate

- **After every task commit:** Run quick command
- **After every plan wave:** Run full suite command
- **Before `/gsd:verify-work`:** Full suite must be green
- **Max feedback latency:** 15 seconds

---

## Per-Task Verification Map

| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | File Exists | Status |
|---------|------|------|-------------|-----------|-------------------|-------------|--------|
| 30-01-01 | 01 | 1 | ONBD-02 | unit | `vitest run hardware-detection` | ❌ W0 | ⬜ pending |
| 30-01-02 | 01 | 1 | ONBD-03 | unit | `vitest run model-catalog` | ❌ W0 | ⬜ pending |
| 30-02-01 | 02 | 2 | ONBD-01 | integration | `vitest run mode-selection` | ❌ W0 | ⬜ pending |
| 30-02-02 | 02 | 2 | ONBD-07 | integration | `vitest run onboarding-probe` | ❌ W0 | ⬜ pending |

*Status: ⬜ pending · ✅ green · ❌ red · ⚠️ flaky*

---

## Wave 0 Requirements

- [ ] `server/src/services/hardware-detection.test.ts` — stubs for ONBD-02, ONBD-03
- [ ] `server/src/routes/system.test.ts` — stubs for unauthenticated probe endpoint
- [ ] `ui/src/components/ModeSelector.test.tsx` — stubs for ONBD-01

*If none: "Existing infrastructure covers all phase requirements."*

---

## Manual-Only Verifications

| Behavior | Requirement | Why Manual | Test Instructions |
|----------|-------------|------------|-------------------|
| Apple Silicon unified memory label | ONBD-02 | Requires M-series hardware | On Mac Mini M4: call /api/system/providers, verify "unified memory" label |
| Mode selector persists across page reload | ONBD-01 | Browser state | Select mode, refresh browser, verify selection persists |
| Privacy premium copy visible | ONBD-07 | Visual verification | Check onboarding UI shows "runs entirely on your machine" copy |

---

## Validation Sign-Off

- [ ] All tasks have `<automated>` verify or Wave 0 dependencies
- [ ] Sampling continuity: no 3 consecutive tasks without automated verify
- [ ] Wave 0 covers all MISSING references
- [ ] No watch-mode flags
- [ ] Feedback latency < 15s
- [ ] `nyquist_compliant: true` set in frontmatter

**Approval:** pending