---
phase: 12
slug: steamvr-ipd-slider-ui
status: draft
nyquist_compliant: false
wave_0_complete: false
created: 2026-03-28
---

# Phase 12 — Validation Strategy

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

---

## Test Infrastructure

| Property | Value |
|----------|-------|
| **Framework** | Manual SteamVR driver testing (no unit test framework — driver loaded by SteamVR runtime) |
| **Config file** | none — driver settings validated via SteamVR settings UI |
| **Quick run command** | `beyond_cli.exe status` |
| **Full suite command** | `beyond_cli.exe status && beyond_cli.exe ipd?` |
| **Estimated runtime** | ~5 seconds |

---

## Sampling Rate

- **After every task commit:** Run `beyond_cli.exe status`
- **After every plan wave:** Build driver, deploy, verify in SteamVR
- **Before `/gsd:verify-work`:** Full build + deploy + manual slider test
- **Max feedback latency:** 30 seconds (build time)

---

## Per-Task Verification Map

| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | File Exists | Status |
|---------|------|------|-------------|-----------|-------------------|-------------|--------|
| 12-01-01 | 01 | 1 | SLIDER-01 | build | cmake --build build --config Release | ✅ | ⬜ pending |
| 12-01-02 | 01 | 1 | SLIDER-02 | build | cmake --build build --config Release | ✅ | ⬜ pending |
| 12-02-01 | 02 | 2 | HARD-04 | manual | beyond_cli.exe status | ✅ | ⬜ pending |

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

---

## Wave 0 Requirements

*Existing infrastructure covers all phase requirements.*

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## Manual-Only Verifications

| Behavior | Requirement | Why Manual | Test Instructions |
|----------|-------------|------------|-------------------|
| SteamVR IPD slider appears in dashboard | SLIDER-01 | Requires SteamVR runtime with HMD connected | Open SteamVR dashboard, check Settings > Video for IPD slider |
| Slider changes rendered eye separation | SLIDER-02 | Visual verification in HMD required | Move slider, observe stereo separation change in real-time |
| Slider hidden for Beyond 1 (BS1 serial) | HARD-04 | Requires Beyond 1 hardware or serial spoofing | Connect Beyond 1 or set serial prefix to BS1, verify no slider |

---

## 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 < 30s
- [ ] `nyquist_compliant: true` set in frontmatter

**Approval:** pending