diff --git a/.planning/phases/10-real-world-runtime-validation/RUNTIME-VALIDATION.md b/.planning/phases/10-real-world-runtime-validation/RUNTIME-VALIDATION.md
new file mode 100644
index 0000000..3bc4e6f
--- /dev/null
+++ b/.planning/phases/10-real-world-runtime-validation/RUNTIME-VALIDATION.md
@@ -0,0 +1,47 @@
+# Runtime Validation Report — ImpTune v1.1
+
+**Status:** DRAFT (in progress)
+**Started:** <YYYY-MM-DD>
+**Signed off by:** <name>
+**Signed off date:** <YYYY-MM-DD>
+
+## Tenant & Environment
+| Field | Value |
+|-------|-------|
+| Intune tenant (domain) | |
+| Test device hostname | |
+| Windows OS build | |
+| Device is Intune-managed | yes / no |
+| Driver vendor(s) tested | |
+| ImpTune commit SHA | |
+| Package file name | |
+| Package SHA256 | |
+| Generated at | |
+
+## RTVAL-01 — Tenant ingestion
+Status: PENDING
+Evidence: (screenshot path)
+Notes:
+
+## RTVAL-02 — Install under SYSTEM (pnputil + $PSScriptRoot)
+Status: PENDING
+Evidence: (IntuneManagementExtension.log excerpt path)
+Notes:
+
+## RTVAL-03 — Detection rule reports Installed
+Status: PENDING
+Evidence: (screenshot path)
+Notes:
+
+## RTVAL-04 — Uninstall under SYSTEM
+Status: PENDING
+Evidence: (log path + screenshot)
+Notes:
+
+## Issues Found
+(list any defects; link to v1.1 tickets or defer rationale)
+
+## Sign-off
+- [ ] All five RTVAL criteria PASS or have documented rationale
+- [ ] Evidence files committed under `evidence/`
+- [ ] Signed by: ___________________
diff --git a/.planning/phases/10-real-world-runtime-validation/evidence/.gitkeep b/.planning/phases/10-real-world-runtime-validation/evidence/.gitkeep
new file mode 100644
index 0000000..e69de29