---
phase: 10-real-world-runtime-validation
plan: 02
subsystem: testing
tags: [intune, intunewin, runtime-validation, rtval, pnputil, system-context, attestation-only]

# Dependency graph
requires:
  - phase: 10-real-world-runtime-validation
    provides: "Plan 10-01 — locked .intunewin package (Copieur_2eme), tenant + device metadata, RUNTIME-VALIDATION.md scaffold"
provides:
  - "RTVAL-01 PASS (artifact-backed) — real Intune tenant accepts generated .intunewin without format errors"
  - "RTVAL-02 PASS (attestation-only) — install under SYSTEM context confirmed verbally by technician"
  - "RTVAL-03 PASS (attestation-only) — Intune detection rule reports Installed confirmed verbally"
  - "RTVAL-04 PASS (attestation-only) — uninstall under SYSTEM confirmed verbally; printer removed cleanly"
  - "Two structural .intunewin generator defects discovered and fixed during RTVAL-01 (ISSUE-01): HMAC scope + Detection.xml format"
affects:
  - 10-03-sign-off-and-phase-closure
  - 11-real-world-rollout-and-feedback

# Tech tracking
tech-stack:
  added: []
  patterns:
    - "Attestation-only PASS is permitted but MUST be flagged in RUNTIME-VALIDATION.md Notes and called out in plan SUMMARY for downstream verifiers"
    - "Debug-then-resume flow: RTVAL failure → /gsd:debug on generator → commit fixes → re-test same check against fresh build"

key-files:
  created: []
  modified:
    - .planning/phases/10-real-world-runtime-validation/RUNTIME-VALIDATION.md

key-decisions:
  - "RTVAL-01 initial FAIL (blocker) debugged to root cause: two .intunewin generator defects (HMAC over ciphertext-only instead of IV+ciphertext; Detection.xml not matching IntuneWinAppUtil.exe reference format). Fixed in commits 74535ea and 7716246; re-test PASS."
  - "RTVAL-02, RTVAL-03, and RTVAL-04 accepted as attestation-only PASSes per explicit, repeated user approval. User was warned on RTVAL-03 about consecutive attestation-only checks weakening audit trail, and warned AGAIN on RTVAL-04, and chose to proceed both times."
  - "Phase 10 runtime audit trail is now structurally weakened: 3 of 4 RTVAL runtime checks are verbal-only. Plan 10-03 sign-off must either accept this or force re-run of RTVAL-02/03/04 with full artifact capture."

patterns-established:
  - "SUMMARY.md must surface attestation-only debt prominently so the wave-3 verifier and phase verifier cannot miss it"
  - ".intunewin generator defects discovered during real-tenant testing are captured as ISSUE-## entries in RUNTIME-VALIDATION.md with resolution commit refs"

requirements-completed:
  - RTVAL-01
  - RTVAL-02
  - RTVAL-03
  - RTVAL-04

# Metrics
duration: "~1 day (wall-clock, spanning debug + re-test + three attestation checkpoints)"
completed: 2026-04-13
---

# Phase 10 Plan 02: Live Intune Runtime Validation Summary

**All four RTVAL runtime checks recorded against live tenant rubis.fr on ARES-5CG5220YTM — RTVAL-01 artifact-backed PASS after fixing two .intunewin generator defects; RTVAL-02/03/04 attestation-only PASSes (user approved despite repeated warnings about weakened audit trail).**

## Performance

- **Duration:** ~1 day wall-clock (includes debug cycle for ISSUE-01 + three human-action checkpoints)
- **Started:** 2026-04-13
- **Completed:** 2026-04-13
- **Tasks:** 4 (all `checkpoint:human-action`)
- **Files modified:** 1 (RUNTIME-VALIDATION.md — incrementally across 4 task commits)

## Accomplishments

- **RTVAL-01 (artifact-backed):** Real Intune tenant (rubis.fr) accepted the generated `Copieur_2eme.intunewin` package without format errors on re-test against the fixed build. Two screenshots committed (`rtval-01-tenant-upload.png`, `rtval-01-app-assigned.png`).
- **RTVAL-01 debug cycle:** Initial run FAILED with empty wizard fields and greyed-out OK button. Root cause debugged to two structural defects in the ImpTune .intunewin generator:
  1. HMAC was computed over ciphertext only instead of IV+ciphertext (commit `74535ea`)
  2. Detection.xml did not match the IntuneWinAppUtil.exe reference format (commit `7716246`)
  Both fixes landed; RTVAL-01 re-tested PASS.
- **RTVAL-02 (attestation-only):** Technician verbally confirmed install script ran under SYSTEM on ARES-5CG5220YTM, driver deployed, Intune portal showed Installed. No log excerpt or screenshot captured.
- **RTVAL-03 (attestation-only, 2nd consecutive):** Technician verbally confirmed Intune reports Installed and detection rule passes. No screenshot or detect transcript captured. User warned about weakened audit trail and approved.
- **RTVAL-04 (attestation-only, 3rd consecutive):** Technician verbally confirmed Intune uninstall ran under SYSTEM, exited cleanly, printer removed from ARES-5CG5220YTM. No uninstall log or portal screenshot captured. User warned a second time about the cumulative audit-trail damage and approved.

## Task Commits

Each task was committed atomically:

1. **Task 1: RTVAL-01 — Tenant ingestion (FAIL → debug → PASS)**
   - `403a0a5` (fix): initial FAIL recorded — Intune cannot parse generated .intunewin
   - `46cfde0` (chore): STATE.md updated — plan blocked at RTVAL-01 FAIL
   - `44a4f2c` (docs): debug session recorded
   - `7716246` (fix): Detection.xml aligned with IntuneWinAppUtil.exe reference format
   - `74535ea` (fix): HMAC computed over IV+ciphertext
   - `35d4edc` (docs): debug session updated — HMAC scope bug identified
   - `00b709d` (docs): debug session resolved
   - `cf3b86a` (docs): RTVAL-01 PASS recorded on re-test against fixed build
   - `bcd12a3` (docs): BLOCKER-01 cleared, plan resumed at Task 2
2. **Task 2: RTVAL-02 — Install under SYSTEM** — `870158b` (docs) — attestation-only PASS
   - `d86199f` (docs): STATE.md advanced to Task 3
3. **Task 3: RTVAL-03 — Detection rule reports Installed** — `475d593` (docs) — attestation-only PASS (2nd consecutive)
   - `b0be3d3` (docs): STATE.md advanced to Task 4
4. **Task 4: RTVAL-04 — Uninstall under SYSTEM** — `2c912ca` (docs) — attestation-only PASS (3rd consecutive)

**Plan metadata:** (this commit) `docs(10-02): complete live-intune-runtime-validation plan`

## Files Created/Modified

- `.planning/phases/10-real-world-runtime-validation/RUNTIME-VALIDATION.md` — Status line updated to reflect all four RTVAL checks recorded; RTVAL-01 through RTVAL-04 sections populated with results, evidence (or attestation disclaimer), and Notes.
- `imptune/generators/intunewin_builder.py` (via debug cycle, commits `74535ea`, `7716246`) — HMAC scope fix + Detection.xml format alignment; unblocked RTVAL-01.

## Decisions Made

- **Debug-before-abandon:** RTVAL-01 initial FAIL was not deferred to a gap-closure plan — instead, the .intunewin generator was debugged inline (ISSUE-01) because the root cause was clearly in-scope for the package under test. Two commits fixed it and the same check was re-run on the fresh build.
- **Attestation-only accepted for RTVAL-02/03/04:** User explicitly, repeatedly chose verbal attestation over artifact capture. The executor flagged each successive choice (warning on RTVAL-03, second warning on RTVAL-04) and proceeded per user instruction. This is documented here, in RUNTIME-VALIDATION.md Notes for each check, and in STATE.md decisions log — it MUST be visible to plan 10-03 (sign-off) and the phase verifier.

## Deviations from Plan

### Rule 1 (Bug) — `.intunewin` generator defects discovered during RTVAL-01

**1. [Rule 1 - Bug] HMAC computed over ciphertext only instead of IV+ciphertext**
- **Found during:** Task 1 (RTVAL-01) — Intune wizard rejected the package, debugged to the root cause
- **Issue:** `intunewin_builder.py` computed HMAC over the ciphertext alone, but the Intune Win32 package format requires HMAC over `IV || ciphertext`. Intune's package parser rejected the file silently (empty wizard fields).
- **Fix:** Updated HMAC computation to include the IV prefix.
- **Files modified:** `imptune/generators/intunewin_builder.py`
- **Committed in:** `74535ea` (standalone fix commit, not inside a task commit)

**2. [Rule 1 - Bug] Detection.xml did not match IntuneWinAppUtil.exe reference format**
- **Found during:** Task 1 (RTVAL-01) — same debug cycle
- **Issue:** Embedded Detection.xml used a slightly different schema/element ordering than IntuneWinAppUtil.exe emits. Intune parses the reference format strictly, so the wizard could not populate metadata fields.
- **Fix:** Aligned Detection.xml generation with the IntuneWinAppUtil.exe reference output byte-for-byte.
- **Files modified:** `imptune/generators/intunewin_builder.py`
- **Committed in:** `7716246` (standalone fix commit, not inside a task commit)

---

**Total deviations:** 2 auto-fixed (both Rule 1 bugs in the generator under test)
**Impact on plan:** Both fixes were essential and in-scope — the whole point of RTVAL-01 is to discover exactly this class of defect. Plan was paused via debug session and resumed without re-planning.

## ⚠️ CRITICAL: Attestation-Only Audit Trail Damage

**Read this before signing off Phase 10 in plan 10-03.**

Three of the four RTVAL runtime checks in this plan are **attestation-only** (verbal confirmation from the technician, no log excerpt, no screenshot, no transcript):

| Check    | Status                        | Artifact-backed? | Warning at time of acceptance                                              |
| -------- | ----------------------------- | ---------------- | -------------------------------------------------------------------------- |
| RTVAL-01 | PASS                          | **Yes**          | —                                                                          |
| RTVAL-02 | PASS (attestation-only)       | No               | User approved "Pass without evidence"                                      |
| RTVAL-03 | PASS (attestation-only, 2nd)  | No               | User warned about weakened audit trail, approved anyway                    |
| RTVAL-04 | PASS (attestation-only, 3rd)  | No               | User warned a **second time** about weakened audit trail, approved anyway  |

**What this means:**

- Only tenant ingestion (RTVAL-01) is independently verifiable from committed evidence.
- The entire **runtime half** of Phase 10 (install under SYSTEM, detection, uninstall under SYSTEM) rests on the technician's verbal report. None of the required observations (`$PSScriptRoot` resolved, `pnputil /add-driver` success line, `NT AUTHORITY\SYSTEM` banner, exit code 0, `Get-Printer` shows/hides the printer, Intune portal Installed/Not installed) were captured to disk.
- For any future regression, incident investigation, or compliance audit, RTVAL-02/03/04 should be treated as **soft PASSes** and re-run with full artifact capture before the phase is considered closed.

**Recommended action for plan 10-03 (sign-off):**

1. Either: re-run RTVAL-02/03/04 with full artifact capture before signing off, OR
2. Explicitly accept the attestation-only audit trail in the sign-off block and record the technician's name + the compensating control (e.g., known test device, known tenant, same session).

The sign-off checklist in RUNTIME-VALIDATION.md should **not** be ticked silently — the reviewer needs to actively acknowledge the attestation-only nature of 3 of 4 checks.

## Issues Encountered

- **ISSUE-01 (resolved):** Initial RTVAL-01 FAIL — Intune wizard could not parse `Copieur_2eme.intunewin`. Root-caused during a /gsd:debug session to two `.intunewin` generator defects (HMAC scope + Detection.xml format). Both fixed in `74535ea` and `7716246`. RTVAL-01 re-tested PASS against the fixed build. See RUNTIME-VALIDATION.md "Issues Found → ISSUE-01" for the full trail.
- **Attestation debt:** Three consecutive runtime checks went attestation-only. Not an "issue" in the traditional sense (user chose it), but documented here, in STATE.md decisions, and in RUNTIME-VALIDATION.md Notes as a **persistent risk** that plan 10-03 must explicitly address.

## User Setup Required

None — all configuration was performed by the technician during the four human-action checkpoints.

## Next Phase Readiness

- **Plan 10-03 (sign-off):** Ready to start. RTVAL-01..04 all have recorded statuses (no PENDING lines). Sign-off agent MUST:
  1. Read the "CRITICAL: Attestation-Only Audit Trail Damage" section of this summary
  2. Decide whether to re-run RTVAL-02/03/04 with evidence OR explicitly accept the attestation-only runtime half
  3. Populate the "Signed off by" and "Signed off date" fields in RUNTIME-VALIDATION.md
- **Phase 11 (real-world rollout) readiness:** Conditionally ready. The .intunewin generator is known-good (fixed in commits 74535ea + 7716246, confirmed by RTVAL-01). The runtime behavior (install/detect/uninstall under SYSTEM) is attested but not artifact-proven — Phase 11 rollout will be the real stress test.
- **Blockers:** None for plan 10-03. BLOCKER-01 (ISSUE-01) resolved.

## Self-Check: PASSED

All referenced commits verified to exist in git history (`403a0a5`, `7716246`, `74535ea`, `cf3b86a`, `870158b`, `475d593`, `2c912ca`). SUMMARY.md written to expected path.

---
*Phase: 10-real-world-runtime-validation*
*Plan: 02-live-intune-runtime-validation*
*Completed: 2026-04-13*