docs(10-03): complete report-signoff plan and close Phase 10

- Mark Phase 10 complete in ROADMAP.md (3/3 plans, 2026-04-13)
- Create 10-03-report-signoff-SUMMARY.md with attestation-gap closure note
- Update STATE.md: plan 10-03 complete, Phase 10 closed, next is phase 8 or 11
- REQUIREMENTS.md RTVAL-01..05 ticks already landed in 10-02 completion commit (idempotent)

.planning/ROADMAP.md

@@ -26,7 +26,7 @@ Full details: [`milestones/v1.0-ROADMAP.md`](milestones/v1.0-ROADMAP.md)
 
 - [ ] **Phase 8: Nyquist Validation Track** — Retro-fit Nyquist-compliant VALIDATION.md across all 7 v1.0 phases with evidence-backed checks
 - [x] **Phase 9: UX Tech Debt Closure** — Fix the three carried-over UX gaps so the deployed build is the polished one technicians actually use␍ (completed 2026-04-13)
-- [ ] **Phase 10: Real-World Runtime Validation** — Validate generated artifacts end-to-end against a live Intune tenant and a real managed endpoint
+- [x] **Phase 10: Real-World Runtime Validation** — Validate generated artifacts end-to-end against a live Intune tenant and a real managed endpoint (completed 2026-04-13)
 - [ ] **Phase 11: Real-World Rollout & Feedback** — Deploy the container to a real MSP environment, push a real package, and capture structured technician feedback
 
 ## Phase Details
@@ -93,5 +93,5 @@ Full details: [`milestones/v1.0-ROADMAP.md`](milestones/v1.0-ROADMAP.md)
 | 7. Dashboard & Nav Polish    | v1.0 | 1/1 | Complete    | 2026-04-13 |
 | 8. Nyquist Validation Track  | v1.1 | 0/? | Not started | —          |
 | 9. UX Tech Debt Closure      | 3/3 | Complete   | 2026-04-13 | —          |
-| 10. Real-World Runtime Validation | 2/3 | In Progress|  | —     |
+| 10. Real-World Runtime Validation | v1.1 | 3/3 | Complete    | 2026-04-13 |
 | 11. Real-World Rollout & Feedback | v1.1 | 0/? | Not started | —     |

.planning/STATE.md

@@ -2,15 +2,15 @@
 gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Hardening & Validation
-status: in-progress — plan 10-02 COMPLETE; all four RTVAL runtime checks recorded (RTVAL-01 artifact-backed PASS, RTVAL-02/03/04 attestation-only PASSes — 3 consecutive, audit trail weakened); ready for plan 10-03 (sign-off)
+status: in-progress — Phase 10 COMPLETE (signed off 2026-04-13 with explicit attestation-only audit-trail acknowledgement for RTVAL-02/03/04); ready for Phase 8 (Nyquist) or Phase 11 (rollout) planning
-stopped_at: 10-02 complete — next is 10-03 sign-off and phase closure
+stopped_at: Phase 10 complete — next is /gsd:plan-phase 8 or /gsd:plan-phase 11
 last_updated: "2026-04-13T00:00:00.000Z"
-last_activity: 2026-04-13 — Plan 10-02 completed. RTVAL-04 recorded PASS (attestation-only, 3rd consecutive; user warned twice about weakened audit trail and approved). SUMMARY.md created with prominent attestation-only debt section for wave-3 verifier and phase verifier.
+last_activity: 2026-04-13 — Plan 10-03 completed. RUNTIME-VALIDATION.md signed off by Sébastien QUEROL; REQUIREMENTS.md RTVAL-01..05 ticked; ROADMAP.md Phase 10 marked 3/3 Complete. Phase 10 closed with RTVAL-02/03/04 as accepted attestation-only PASSes.
 progress:
   total_phases: 4
-  completed_phases: 1
+  completed_phases: 2
   total_plans: 4
-  completed_plans: 4
+  completed_plans: 5
 ---
 
 # Project State
@@ -25,11 +25,11 @@ See: .planning/PROJECT.md (updated 2026-04-13 after v1.0 milestone)
 ## Current Position
 
 Milestone: v1.1 Hardening & Validation
-Phase: 10 — Real-World Runtime Validation
+Phase: 10 — Real-World Runtime Validation — **COMPLETE (2026-04-13)**
-Plan: 02 COMPLETE — all 4 tasks recorded (RTVAL-01 artifact-backed PASS; RTVAL-02/03/04 attestation-only PASSes, 3 consecutive). Next plan: 10-03 (sign-off and phase closure).
+Plan: 03 COMPLETE — RUNTIME-VALIDATION.md signed off by Sébastien QUEROL; REQUIREMENTS.md RTVAL-01..05 ticked; ROADMAP.md Phase 10 marked 3/3 Complete. Next: Phase 8 (Nyquist) or Phase 11 (rollout).
-Status: in-progress — plan 10-02 done, plan 10-03 ready to start
+Status: phase 10 closed — ready for next phase planning
-Decision: Plan 10-02 complete with a structurally weakened runtime audit trail. RTVAL-02/03/04 all accepted as attestation-only PASSes per explicit, repeated user approval. User was warned twice (on RTVAL-03 and again on RTVAL-04) that consecutive attestation-only checks damage the audit trail and chose to proceed both times. Plan 10-03 sign-off must explicitly address whether to re-run RTVAL-02/03/04 with full artifact capture before closing the phase.
+Decision: Phase 10 closed with a structurally weakened runtime audit trail. Only RTVAL-01 is artifact-backed; RTVAL-02/03/04 stand on technician attestation. Reviewer explicitly acknowledged the gap at sign-off and accepted closure on that basis. If a regression, incident, or customer escalation touches SYSTEM-context install/detect/uninstall, RTVAL-02/03/04 must be re-run with full artifact capture before the finding can be trusted.
-Last activity: 2026-04-13 — RTVAL-04 PASS (attestation-only, commit 2c912ca); plan 10-02 SUMMARY.md created with prominent attestation-only debt section; plan 10-02 closed
+Last activity: 2026-04-13 — Plan 10-03 completed; Phase 10 closed; commit 5685fd9 (sign-off) plus 10-03 SUMMARY + ROADMAP/STATE update commit
 
 ## Milestone History
 
@@ -74,6 +74,7 @@ Full decision log in PROJECT.md Key Decisions table. Milestone v1.0 decisions ar
 - [Phase 10-real-world-runtime-validation]: 10-02: RTVAL-03 accepted as attestation-only PASS (2026-04-13) — second consecutive attestation-only check; no rtval-03-detection.png and no rtval-03-detect-manual.txt captured; user was explicitly warned that a second consecutive attestation-only check further weakens the audit trail and still chose to proceed; flagged in RUNTIME-VALIDATION.md Notes as soft PASS requiring re-run with full artifact capture before phase sign-off
 - [Phase 10-real-world-runtime-validation]: 10-02: RTVAL-04 accepted as attestation-only PASS (2026-04-13) — **third consecutive attestation-only check**; no rtval-04-uninstall-log.txt and no rtval-04-uninstall-status.png captured; user was warned a SECOND time about cumulative audit trail damage and still chose to proceed. Together, RTVAL-02/03/04 constitute an attestation-only runtime half for Phase 10: only RTVAL-01 (tenant ingestion) is artifact-backed. Plan 10-03 sign-off must explicitly address whether to re-run RTVAL-02/03/04 with full evidence before closing the phase.
 - [Phase 10-real-world-runtime-validation]: 10-02: Plan 10-02 COMPLETE (2026-04-13) — SUMMARY.md created with prominent "Attestation-Only Audit Trail Damage" section for the wave-3 verifier and phase verifier
+- [Phase 10-real-world-runtime-validation]: 10-03: Plan 10-03 COMPLETE (2026-04-13) — RUNTIME-VALIDATION.md signed off by Sébastien QUEROL with explicit attestation-gap acknowledgement; REQUIREMENTS.md RTVAL-01..05 ticked (idempotent, already landed in 10-02 commit 206648c); ROADMAP.md Phase 10 flipped to 3/3 Complete 2026-04-13. Phase 10 officially closed.
 
 ### Active Blockers
 
@@ -88,5 +89,5 @@ None. BLOCKER-01 resolved 2026-04-13 via commits 74535ea (HMAC over IV+ciphertex
 ## Session Continuity
 
 Last session: 2026-04-13T00:00:00.000Z
-Stopped at: Completed 10-02-live-intune-runtime-validation-PLAN.md — next is plan 10-03 (sign-off and phase closure)
+Stopped at: Completed 10-03-report-signoff-PLAN.md — Phase 10 closed; next is `/gsd:plan-phase 8` (Nyquist) or `/gsd:plan-phase 11` (rollout)
-Resume file: .planning/phases/10-real-world-runtime-validation/10-03-*-PLAN.md (to be drafted or existing)
+Resume file: — (awaiting next phase kickoff)

.planning/phases/10-real-world-runtime-validation/10-03-report-signoff-SUMMARY.md

@@ -0,0 +1,87 @@
+---
+phase: 10-real-world-runtime-validation
+plan: 03
+subsystem: validation/reporting
+tags: [runtime-validation, sign-off, phase-closure, rtval]
+requirements: [RTVAL-05]
+dependency_graph:
+  requires: [10-01, 10-02]
+  provides: [signed-off RUNTIME-VALIDATION.md, Phase 10 closure]
+  affects: [.planning/REQUIREMENTS.md, .planning/ROADMAP.md, .planning/STATE.md]
+tech_stack:
+  added: []
+  patterns: [human sign-off checkpoint, attestation gap acknowledgement]
+key_files:
+  created:
+    - .planning/phases/10-real-world-runtime-validation/10-03-report-signoff-SUMMARY.md
+  modified:
+    - .planning/phases/10-real-world-runtime-validation/RUNTIME-VALIDATION.md
+    - .planning/ROADMAP.md
+    - .planning/REQUIREMENTS.md
+decisions:
+  - Phase 10 closed with RTVAL-02/03/04 as attestation-only PASSes (only RTVAL-01 artifact-backed); reviewer explicitly acknowledged the audit-trail gap at sign-off rather than blocking closure for a re-run.
+metrics:
+  completed_date: 2026-04-13
+---
+
+# Phase 10 Plan 03: Report Sign-off Summary
+
+Finalized RUNTIME-VALIDATION.md, obtained human sign-off with explicit attestation-gap acknowledgement, and flipped Phase 10 tracking docs to complete.
+
+## What Was Done
+
+### Task 1 — Finalize RUNTIME-VALIDATION.md report body
+Completed in the 10-02 → 10-03 handoff window: all RTVAL-01..04 sections carry concrete PASS/FAIL verdicts, evidence links, and notes; top-level Status was flipped to READY FOR SIGN-OFF by the prior agent.
+
+### Task 2 — Human review and sign-off (checkpoint)
+Reviewer Sébastien QUEROL read the report, acknowledged the attestation-only audit-trail gap for RTVAL-02/03/04, and signed off on 2026-04-13:
+
+- Top-level **Status:** flipped to `SIGNED OFF`
+- **Signed off by:** Sébastien QUEROL
+- **Signed off date:** 2026-04-13
+- All three sign-off checkboxes ticked `[x]`
+- Reviewer explicitly accepted that only RTVAL-01 is artifact-backed; RTVAL-02/03/04 rest on technician verbal attestation. Compensating controls listed in the report (known device, known tenant, single session, known-good generator) stand in for missing log/screenshot evidence.
+
+Commit: `5685fd9` — `docs(phase-10): human sign-off on RUNTIME-VALIDATION.md (attestation gap acknowledged)`
+
+### Task 3 — Tick requirements, mark Phase 10 complete
+- `.planning/REQUIREMENTS.md` already had RTVAL-01..05 ticked `[x]` and the Traceability table showing `Complete` for each (landed in the 10-02 completion commit `206648c`). Idempotent confirmation only — no edits needed.
+- `.planning/ROADMAP.md`:
+  - Phase 10 entry flipped from `[ ]` to `[x]` with `(completed 2026-04-13)` appended.
+  - Progress table row for Phase 10 set to `v1.1 | 3/3 | Complete | 2026-04-13`.
+
+## Verification
+
+- `grep "^\*\*Status:\*\* SIGNED OFF" RUNTIME-VALIDATION.md` → hit
+- `grep "Signed off by:\*\* Sébastien QUEROL" RUNTIME-VALIDATION.md` → hit
+- Zero `Status: PENDING` lines in the report
+- `grep "\[x\] \*\*RTVAL-05\*\*" REQUIREMENTS.md` → hit
+- `grep "\[x\] \*\*Phase 10" ROADMAP.md` → hit
+- ROADMAP.md Progress row for Phase 10 shows `3/3 | Complete | 2026-04-13`
+
+All verification checks from the plan pass.
+
+## Deviations from Plan
+
+None. Task 3 REQUIREMENTS.md edits were already present from plan 10-02's completion commit, making that step a no-op confirmation rather than a mutation. No deviation rules (1-4) triggered.
+
+## Phase 10 Closure Note — Attestation-Only Audit Trail
+
+Phase 10 closes with a structurally weakened runtime audit trail that downstream consumers must be aware of:
+
+- **RTVAL-01** (tenant ingestion): PASS, artifact-backed (screenshots + exact .intunewin package committed under `evidence/`), re-tested on the fixed build after ISSUE-01 was resolved (commits `74535ea` + `7716246`).
+- **RTVAL-02** (install under SYSTEM): PASS, **attestation-only** — no `IntuneManagementExtension.log` excerpt, no portal screenshot.
+- **RTVAL-03** (detection rule): PASS, **attestation-only, 2nd consecutive** — no portal screenshot, no manual detect transcript.
+- **RTVAL-04** (uninstall under SYSTEM): PASS, **attestation-only, 3rd consecutive** — no uninstall log, no portal screenshot.
+
+RTVAL-02/03/04 together form an attestation-only runtime half for the phase. The user was warned twice during plan 10-02 (on RTVAL-03 and again on RTVAL-04) that consecutive attestation-only checks damage the audit trail, and chose to proceed both times. At sign-off the user again explicitly acknowledged the gap and accepted Phase 10 closure on that basis.
+
+**Implication for future work:** If a regression, incident, or customer escalation touches SYSTEM-context install, detection, or uninstall, RTVAL-02/03/04 must be treated as soft PASSes — the "it worked once" claim for this build cannot be independently re-derived from evidence files and must be re-validated with full artifact capture. Phase 11 rollout proceeds at the reviewer's risk.
+
+## Self-Check: PASSED
+
+- FOUND: `.planning/phases/10-real-world-runtime-validation/RUNTIME-VALIDATION.md` (SIGNED OFF)
+- FOUND: `.planning/phases/10-real-world-runtime-validation/10-03-report-signoff-SUMMARY.md`
+- FOUND: REQUIREMENTS.md RTVAL-01..05 ticked + Traceability Complete
+- FOUND: ROADMAP.md Phase 10 ticked with 3/3 Complete 2026-04-13
+- FOUND commit: `5685fd9` (Task 2 sign-off)