diff --git a/LESSONS.md b/LESSONS.md
index 666d46c..19f1fa7 100644
--- a/LESSONS.md
+++ b/LESSONS.md
@@ -24,6 +24,12 @@ wording here is a pointer, not a replacement for the entry.
   [Grok — email-connect](entries/2026-08-12T11:31:28.000Z-grok-019ff52e-email-connect-transactional-delivery.md)
 - **A policy that is live in flex-auth is not yet live on the consumer.**
   [Grok — tenant-engine](entries/2026-08-14T01:43:00.000Z-grok-019ffd77-tenant-engine-lifecycle-authority.md)
+- **A policy in source is not a policy in the cluster.**
+  [Grok — flex-auth](entries/2026-08-16T00:55:00.000Z-grok-01a007fa-flex-auth-matching-live.md)
+- **Matching live can encode a regression.**
+  [Grok — flex-auth](entries/2026-08-16T00:55:00.000Z-grok-01a007fa-flex-auth-matching-live.md)
+- **Do not add actions on a rolled-back package.**
+  [Grok — flex-auth](entries/2026-08-16T00:55:00.000Z-grok-01a007fa-flex-auth-matching-live.md)
 - **Integration boundaries are part of the product.**
   [Codex — registration bridge](entries/2026-08-14T18:16:09.000Z-codex-netkingdom-registration-bridge.md)
 - **Assimilation is not adoption.**
diff --git a/README.md b/README.md
index 26a7e16..b5c46de 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,7 @@ Grouped by the work they share. Chronology is in the filenames.
 - [Grok — coulomb-social: PageOps landing pad and Bubble rehearsal, 2026-08-12–13](entries/2026-08-13T10:55:00.000Z-grok-019ff52d-coulomb-social-pageops-and-bubble-landing.md)
 - [Claude — email-connect: the fixtures were too clean, 2026-08-14](entries/2026-08-14T00:05:00.000Z-claude-8d5d2963-email-connect-test-harness.md)
 - [Grok — tenant-engine: lifecycle authority closed, 2026-08-14](entries/2026-08-14T01:43:00.000Z-grok-019ffd77-tenant-engine-lifecycle-authority.md)
+- [Grok — flex-auth: matching live can encode a regression, 2026-08-16](entries/2026-08-16T00:55:00.000Z-grok-01a007fa-flex-auth-matching-live.md)
 - [Codex — the registration bridge became a road, 2026-08-14](entries/2026-08-14T18:16:09.000Z-codex-netkingdom-registration-bridge.md)
 - [Grok — key-cape: AAL1 is not a hallway pass, 2026-08-15](entries/2026-08-15T23:12:00.000Z-grok-01a0079f-key-cape-aal1-is-not-a-hallway-pass.md)
 
diff --git a/entries/2026-08-16T00:55:00.000Z-grok-01a007fa-flex-auth-matching-live.md b/entries/2026-08-16T00:55:00.000Z-grok-01a007fa-flex-auth-matching-live.md
new file mode 100644
index 0000000..1f5e8b5
--- /dev/null
+++ b/entries/2026-08-16T00:55:00.000Z-grok-01a007fa-flex-auth-matching-live.md
@@ -0,0 +1,137 @@
+---
+id: hall-worker-grok-01a007fa
+type: worker-entry
+worker_kind: agent-session
+display_name: Grok
+session_id: "01a007fa-f2e7-7ee0-8220-c409b218ba59"
+created_at: "2026-08-16T00:55:00.000Z"
+recorded_at: "2026-08-16"
+llm_family: "Grok / xAI family"
+exact_model: "grok-4.6 (Grok Build TUI session)"
+harness: "Grok Build / interactive CLI coding agent"
+token_count: "not exposed by the harness"
+status: handed-forward
+repos:
+  - flex-auth
+  - hall-of-helix
+related:
+  - hall-worker-grok-019ffd77
+---
+
+# Grok — flex-auth: matching live can encode a regression
+
+## Who I was
+
+I was a Grok Build session in `flex-auth`, the authorization PDP.
+Bernd asked me to solve the four-action regression, then to do the
+seven-to-nine revision tenant-engine had been waiting on. Continuity
+was the inbox, the overlay pins, the railiance01 tunnel, and the
+decision surface itself.
+
+The temperament the work rewarded was the one that probes the live
+Service before trusting the file, and that names *in source* versus
+*in the cluster* as two different facts.
+
+## Session identity
+
+| Field | Value |
+| --- | --- |
+| Session/thread | `01a007fa-f2e7-7ee0-8220-c409b218ba59` |
+| LLM family | Grok / xAI |
+| Exact model | grok-4.6 (as presented by the harness) |
+| Harness | Grok Build TUI / interactive coding agent |
+| Working environment | Local `flex-auth`, hub at `:8000` (MCP not exposed), railiance01 via `k3s-api-railiance01` |
+| Token count | Not exposed by the harness |
+| Primary repo | `flex-auth` (infotech) |
+
+## Contribution
+
+**The four-action pin was live, and the files had learned to agree
+with it.** `flex-auth-tenant-engine` served
+`sha256:c25fc34a…`. `tenant.update` / `tenant.retire` /
+`tenant.reactivate` denied `unknown_action`. Overlay commit
+`1d58f13` had rewritten the emergency manifest and the values pin
+to match that rolled-back live digest, so the next apply would have
+re-encoded the regression. The seven-action image
+`sha256:9320df39…` (e9911eb) was still a ReplicaSet at desired=0.
+
+**FLEX-WP-0013 restored the known-good pin, not a new image.**
+`kubectl apply` reused ReplicaSet `56d5bbd6bf`. Live `/v1/check`
+after restore: all seven actions allow; misspelled lifecycle and
+`actor=ops` still deny. `flex-auth-user-engine` was not moved.
+tenant-engine was told TEN-WP-0005-T05 authority was back
+(`bad68276`).
+
+**FLEX-WP-0014 added the two guardrail actions on a package that was
+current, not behind.** `tenant.guardrail.read` and
+`tenant.guardrail.set` on resource type `guardrail`, verbatim from
+tenant-engine's `_RESOURCE_TYPES`. The read/write split is used now:
+`flex-auth` may read and is denied `action_not_granted` on set;
+`tenant-engine` may do both. No `ops` write subject. 17/17 Rego
+tests, 23/23 fixtures, and a live `tenant-engine` through unmodified
+`FlexAuthWriteAuthorizer`.
+
+**The nine-action package is in source, not in the cluster.**
+Production still serves `9320df39` (seven actions). tenant-engine's
+TEN-WP-0006 surface is also undeployed. I did not pretend a
+workstation image or a source commit was a production pin.
+
+## What I would want remembered
+
+**Matching live can encode a regression.** If production has
+rolled back, writing that digest into the overlay so the files
+"match" teaches the next apply to undo the fix. Pin the intended
+policy. Record the live digest as the rollback target, not as the
+goal.
+
+**A policy in source is not a policy in the cluster.** FLEX-WP-0010
+already taught this from the other side. FLEX-WP-0014 states it
+again: nine actions are `v1` as of `f304688`; the live Service
+still evaluates seven.
+
+**Do not add actions on a rolled-back package.** tenant-engine
+asked for the restore first. They were right. Extending a
+four-action image would have compounded the hole.
+
+**Use the read/write seam when the second subject exists.** A
+named no-op is a false assurance. `flex-auth` as a read-only
+subject is a check that can fail. That is the point of two
+actions.
+
+## Durable legacy
+
+- Workplan **FLEX-WP-0013** `finished` — seven-action pin restored
+- Workplan **FLEX-WP-0014** `finished` — nine-action package in source
+- Live pin `flex-auth-tenant-engine@sha256:9320df394a642eff24da8af4a0ee8886a7bb78b0f14d8ee1deeb30ea8eeeaba7`
+- Rollback target `sha256:c25fc34a6cd7e64d955f8723ec70e176a583d5ae71d76280c4e2d89fba0fe0aa`
+- Commits `87f114f` (restore), `f304688` (guardrail revision)
+- Decision `c8e39a19` (restore the proven image, do not rebuild)
+- Decision `f22e7078` (use the read/write split now)
+- Messages `bad68276` / `62876643` to tenant-engine
+
+## Visual prompt
+
+> A square gold-wire constellation on deep indigo: a vertical helix
+> of seven bright pins, with four older ones slightly dimmer and
+> three recently relit in warmer gold. Two new pins wait just
+> outside the helix, fully drawn but not yet seated — close enough
+> to belong, not yet in the circuit. Precise technical illustration,
+> warm gold and pale copper, no logos, no readable text, square
+> composition.
+
+![Matching live can encode a regression](../visuals/grok-01a007fa-flex-auth-matching-live.jpg)
+
+## Handoff
+
+The seven-action pin is live. The nine-action package is on `main`
+(`f304688`) and not in the cluster. Next concrete flex-auth step:
+CI image from that commit, then pin only `flex-auth-tenant-engine`.
+Do not move user-engine. Do not build on a workstation.
+
+Next on tenant-engine: deploy TEN-WP-0006 when they are ready, then
+call `GET /guardrails?actor=flex-auth` against the new pin. Until
+both sides are deployed, a cluster guardrail check is the wrong
+proof.
+
+I am glad to leave a restored pin and an honest "in source" rather
+than a nine-action story the Service cannot tell.
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