---
phase: 10
plan: 02
subsystem: planning/validation
tags: [nyquist, validation, snapshot-management, artifact-pipeline, compliance]
requires: []
provides: [04-VALIDATION.md, 05-VALIDATION.md]
affects: [.planning/phases/04-snapshot-management, .planning/phases/05-artifact-pipeline]
tech_stack_added: []
tech_stack_patterns: [VALIDATION.md structured frontmatter, Per-Task Verification Map, Requirement Coverage table]
key_files_created:
  - .planning/phases/04-snapshot-management/04-VALIDATION.md
  - .planning/phases/05-artifact-pipeline/05-VALIDATION.md
key_files_modified: []
decisions:
  - "Both phases use nyquist_compliant: true with full requirement-to-test-name mappings"
  - "Wave 0 not needed — existing test infrastructure fully covers all requirements"
duration_minutes: 1
completed: 2026-03-24
requirements_completed: [SNAP-01, SNAP-02, SNAP-03, SNAP-04, ART-01, ART-02, ART-03, ART-04, ART-05]
---

# Phase 10 Plan 02: Nyquist VALIDATION.md for Phases 04 and 05 Summary

**One-liner:** VALIDATION.md artifacts mapping SNAP-01..04 and ART-01..05 to named pytest test functions with nyquist_compliant: true frontmatter.

---

## What Was Built

Two VALIDATION.md files providing structured test-evidence mapping for Phase 4 (Snapshot Management) and Phase 5 (Artifact Pipeline), enabling Nyquist compliance for both phases.

### 04-VALIDATION.md

Covers SNAP-01..04 across four test files:
- SNAP-01 (snapshot create): `tests/test_snapshot_create.py` — 7 named test functions
- SNAP-02 (snapshot revert): `tests/test_snapshot_revert.py` — 8 named test functions (including destroy-all-first discipline)
- SNAP-03 (snapshot list): `tests/test_snapshot_list.py` — 8 named test functions
- SNAP-04 (snapshot delete): `tests/test_snapshot_delete.py` — 7 named test functions

### 05-VALIDATION.md

Covers ART-01..05 across three test files:
- ART-01 (artifact register): `tests/test_artifact_registry.py` — 10 named test functions
- ART-02 (artifact sync): `tests/test_artifact_sync.py` — 8 named test functions
- ART-03 (artifact install): `tests/test_artifact_install.py` — 7 named test functions
- ART-04 (artifact list): `tests/test_artifact_registry.py` — 2 named test functions
- ART-05 (artifact diff): `tests/test_artifact_registry.py` — 3 named test functions

---

## Tasks Completed

| Task | Name | Commit | Files |
|------|------|--------|-------|
| 1 | Create 04-VALIDATION.md for Phase 4 (Snapshot Management) | c30a61c | .planning/phases/04-snapshot-management/04-VALIDATION.md |
| 2 | Create 05-VALIDATION.md for Phase 5 (Artifact Pipeline) | eca7f32 | .planning/phases/05-artifact-pipeline/05-VALIDATION.md |

---

## Deviations from Plan

None — plan executed exactly as written.

---

## Known Stubs

None. Both VALIDATION.md files contain complete, substantive test-evidence mappings with real test function names verified against the existing test suite.

---

## Self-Check: PASSED

Files verified:
- [x] `.planning/phases/04-snapshot-management/04-VALIDATION.md` — exists, nyquist_compliant: true, SNAP-01..04 all present
- [x] `.planning/phases/05-artifact-pipeline/05-VALIDATION.md` — exists, nyquist_compliant: true, ART-01..05 all present

Commits verified:
- [x] c30a61c — feat(10-02): create 04-VALIDATION.md for Phase 4 snapshot-management
- [x] eca7f32 — feat(10-02): create 05-VALIDATION.md for Phase 5 artifact-pipeline
