diff --git a/.kiro/specs/ai-service-plane/tasks.md b/.kiro/specs/ai-service-plane/tasks.md
index a1b2dd8..f7cabba 100644
--- a/.kiro/specs/ai-service-plane/tasks.md
+++ b/.kiro/specs/ai-service-plane/tasks.md
@@ -139,7 +139,7 @@ mypy are clean, and the commit is gated on pytest's own exit code. Script-level
     `benchmarks/independent/plane-increment-2.json` next to the first.
   - _Requirements: 6.2, 6.4_
 
-- [ ] 9. Handover
+- [x] 9. Handover
   - `ops/README.md`: how to run a Run locally and what an ax deployment would need (Kubernetes, Agent
     Substrate, the runner image, the provider extension); memory note updated; scripts that the tasks replaced
     marked as reference-only in their docstrings.
diff --git a/benchmarks/independent/score_batched.py b/benchmarks/independent/score_batched.py
index 40c8b8c..bf9a9cb 100644
--- a/benchmarks/independent/score_batched.py
+++ b/benchmarks/independent/score_batched.py
@@ -1,4 +1,8 @@
-"""Exploratory score of a batched-verifier run against the population's cases (protocol v2 matching).
+"""Reference-only since 2026-09-30: the ai-service-plane tasks `plane/tasks/verify.py` and `agree.py`, run on google/ax
+through `ousast plane run plane/runs/validation-46.yaml`, replace this script (benchmarks/independent/
+plane-increment-2.json). It stays as the reference behaviour the plane was measured against.
+
+Exploratory score of a batched-verifier run against the population's cases (protocol v2 matching).
 
 The batched verifier writes one vulnerable-pin result per case (and a fixed-pin recheck with --fixed), not the
 six pins protocol v2 scores, so this applies the same matching rule (`evaluate.matches_v2`) to what exists:
diff --git a/benchmarks/independent/verify_batched.py b/benchmarks/independent/verify_batched.py
index 01dc3ea..d406994 100644
--- a/benchmarks/independent/verify_batched.py
+++ b/benchmarks/independent/verify_batched.py
@@ -1,4 +1,8 @@
-"""Stage 2, second design: triage per file, verify per file, report only what two passes agree on.
+"""Reference-only since 2026-09-30: the ai-service-plane tasks `plane/tasks/verify.py` and `agree.py`, run on google/ax
+through `ousast plane run plane/runs/validation-46.yaml`, replace this script (benchmarks/independent/
+plane-increment-2.json). It stays as the reference behaviour the plane was measured against.
+
+Stage 2, second design: triage per file, verify per file, report only what two passes agree on.
 
 The first verifier (`verify_sinks.py`) asked one 6-step tool hunt per candidate function. Measured on pgAdmin
 (verifier-check-2026-09-29.json): $0.014-0.020 per candidate, and on 180 candidates verified twice the two runs
diff --git a/ops/README.md b/ops/README.md
index 7f3e6b8..fd42e0d 100644
--- a/ops/README.md
+++ b/ops/README.md
@@ -369,3 +369,7 @@ recomputed after admission and never reuses a cached model decision.
 Pre-push does not implicitly read the working tree's `.env`. Supply any configured
 credential variable in the Git process environment. Explicit model configuration is
 read under the same analysis deadline.
+
+## The agentic service plane on ax
+
+Model-driven pipeline stages run as tasks on google/ax over Agent Substrate (`.kiro/specs/ai-service-plane/`). Bring-up, the smoke Run, the measured footprint and the lessons from the live cluster are in [`ops/ax/README.md`](ax/README.md); `ousast plane run|status|doctor|workspaces` drives it.