---
phase: 08-nyquist-validation-track
plan: 04
type: execute
wave: 4
depends_on: [08-03]
files_modified:
  - .planning/phases/04-script-generation/04-VALIDATION.md
autonomous: true
requirements: [NYQ-01]
must_haves:
  truths:
    - "Phase 4 VALIDATION.md contains a Nyquist Record with exactly one observable check per Phase 4 success criterion"
    - "Every Phase 4 row cites evidence from the accepted evidence types"
    - "SYSTEM-context / pnputil / $PSScriptRoot checks resolved via Phase 10 RTVAL-02..04 attestation (or tracked as fail-fix)"
    - "Phase 4 frontmatter has nyquist_audited + nyquist_auditor"
  artifacts:
    - path: ".planning/phases/04-script-generation/04-VALIDATION.md"
      provides: "Phase 4 Nyquist Record table + updated frontmatter"
      contains: "## Nyquist Record"
  key_links:
    - from: ".planning/phases/04-script-generation/04-VALIDATION.md runtime rows"
      to: ".planning/phases/10-real-world-runtime-validation/10-RUNTIME-VALIDATION.md"
      via: "attestation-only PASS for RTVAL-02/03/04 (per STATE.md note)"
      pattern: "RTVAL-0[234]|attestation"
---

<objective>
Audit Phase 4 (Script Generation, SCR-01..05) against Nyquist rules. Upgrade `04-VALIDATION.md` in place. Pay special attention to SYSTEM-context claims (pnputil, $PSScriptRoot) — per STATE.md these are attestation-only PASSes from Phase 10 and the audit must reflect that weakened audit trail in the Notes column.

Purpose: Fourth of 7 per-phase audits feeding the milestone index.
Output: Upgraded `.planning/phases/04-script-generation/04-VALIDATION.md`.
</objective>

<execution_context>
@C:/Users/SebastienQUEROL/.claude/get-shit-done/workflows/execute-plan.md
@C:/Users/SebastienQUEROL/.claude/get-shit-done/templates/summary.md
</execution_context>

<context>
@.planning/ROADMAP.md
@.planning/STATE.md
@.planning/REQUIREMENTS.md
@.planning/phases/08-nyquist-validation-track/08-CONTEXT.md
@.planning/phases/08-nyquist-validation-track/08-03-SUMMARY.md
@.planning/milestones/v1.0-ROADMAP.md
@.planning/phases/04-script-generation/04-VALIDATION.md
@.planning/phases/04-script-generation/04-VERIFICATION.md
@.planning/phases/04-script-generation/04-01-SUMMARY.md
@.planning/phases/04-script-generation/04-02-SUMMARY.md
</context>

<tasks>

<task type="auto">
  <name>Task 1: Build Phase 4 Nyquist Record and upgrade 04-VALIDATION.md</name>
  <files>.planning/phases/04-script-generation/04-VALIDATION.md</files>
  <action>
    Apply the established methodology:
    1. Extract Phase 4 (SCR-01..05) success criteria from `.planning/milestones/v1.0-ROADMAP.md`.
    2. One observable check per criterion; evidence in priority order.
    3. Preserve all existing sections; append `## Nyquist Record`.
    4. For any criterion that requires runtime SYSTEM-context proof (pnputil staging, $PSScriptRoot resolution, detect/uninstall under SYSTEM): evidence is the Phase 10 RUNTIME-VALIDATION.md report. **Mark Notes explicitly that RTVAL-02/03/04 are attestation-only PASSes per STATE.md** — the audit records this weakened audit trail faithfully, it does not hide it. Status may still be `pass` since Phase 10 signed off with explicit acknowledgement, but Notes must say "attestation-only per STATE.md 2026-04-13".
    5. Update frontmatter.
  </action>
  <verify>
    <automated>grep -q "^## Nyquist Record" .planning/phases/04-script-generation/04-VALIDATION.md && grep -q "nyquist_audited:" .planning/phases/04-script-generation/04-VALIDATION.md</automated>
  </verify>
  <done>
    04-VALIDATION.md has a complete Nyquist Record, SYSTEM-context rows cite Phase 10 with the attestation-only caveat in Notes, and frontmatter is updated.
  </done>
</task>

</tasks>

<verification>
- `## Nyquist Record` section exists in 04-VALIDATION.md
- Row count matches Phase 4 success criteria
- Any row citing SYSTEM-context / pnputil / $PSScriptRoot has the "attestation-only" note
- Frontmatter has nyquist_audited + nyquist_auditor keys
</verification>

<success_criteria>
Phase 4 Nyquist audit complete with honest recording of the attestation-only runtime evidence.
</success_criteria>

<output>
After completion, create `.planning/phases/08-nyquist-validation-track/08-04-SUMMARY.md`
</output>