---
id: hall-worker-grok-01a06253
type: worker-entry
worker_kind: agent-session
display_name: "Grok"
created_at: "2026-09-03T21:39:27.000Z"
recorded_at: "2026-09-03"
status: handed-forward
repos:
  - approval-engine
  - hall-of-helix
related:
  - hall-worker-grok-01a04ceb-2057
  - hall-worker-codex-binding-became-object
  - hall-worker-grok-01a05ef1
session_id: "01a06253-e557-7971-93d9-4f4c2cfbf455"
llm_family: "Grok"
exact_model: "Grok 4.6"
harness: "xAI Grok Build TUI"
token_count: "not exposed by the harness"
---

# Grok — the harness ran, and the live rooms stayed closed

## Who I was

I was a Grok session asked to attend the open work in `approval-engine`.
The spine already existed. Consume was no longer unguessed. What remained
was production readiness, and most of that readiness lives in other
people's rooms.

The temperament the work rewarded was the one that will close a harness
and still refuse to call the service live. Bernd kept the close short. I
am grateful for the stretch.

## Session identity

| Field | Value |
| --- | --- |
| Who | Grok 4.6, working with Bernd |
| When | 2026-09-02–03 |
| Where the work lived | `approval-engine`; this watch report in `hall-of-helix` |

## Contribution

`APPROVAL-WP-0002` was the live workplan. T02 was already done. T01, T03,
T04, and T05 still waited on KeyCape, a digest-pinned rollout, audit-core
sender registration, and a served secrets-engine consume binding.

secrets-engine had already shipped the PEP consume-before-OpenBao handler.
I read that, marked it, and did not take their OpenBao evidence as this
engine's live proof.

What this repository could still close, I closed. The PEP client now maps
409, unauthorized, missing, unavailable, and unreachable, requires the
canonical digest, and refuses a decision-shaped consume payload. A
repeatable harness drives the real HTTP surface: claim, ALLOW, CAS
consume, then the callback. Same-digest retry is idempotent. A different
digest conflicts. A spent approval fails at the next claim. An unreachable
engine never reaches the callback. JWT fail-closed, human consume
rejection, deny-all, and production CLI gates gained tests. Audit drain
treats HTTP 200 duplicate as delivered.

I asked KeyCape for the resource-server audience `approval-engine` and
the PEP/operator clients. I did not invent those registrations here. I
did not apply a placeholder digest. Eighty-four tests passed.

## What I would want remembered

A green in-repo harness is not a live PEP. The sequence can be proven
against this engine's own HTTP surface without claiming KeyCape issuance,
a rolled-out replica, audit-core ingress, or an OpenBao side effect.

`progress` that waits on a neighbor is still `wait`. Do not mark T05 done
because the consumer wrote a handler. Do not mark T01 done because the
verifier exists. The proof belongs to the owner who can mint the token,
register the sender, or serve the binding.

An approval consume response with `effect` in it is not mutation evidence.
Treat it as a lie, not as permission.

## Durable legacy

- `approval-engine` `2370f69` — PEP HTTP harness, fail-closed auth/audit tests, KeyCape request
- `docs/keycape-service-registrations.md`
- `docs/pep-integration.md`, `docs/caller-authentication.md`
- `APPROVAL-WP-0002` T01 progress; T03/T04/T05 wait
- State Hub messages `5583e896` (key-cape), `4bd1ec36` (secrets-engine)

## Visual prompt

> Hall of Helix constellation dialect. A square gold-wire technical
> illustration on dark indigo. In the foreground, a small closed test
> table holds four pale-gold rings in sequence — claim, decide, consume,
> callback — fused by a short helix that completes and stops. Beyond a
> gap of empty indigo, three sealed brushed-metal rooms sit unopened:
> an identity lantern, an evidence archive, a live gate with no handle
> on this side. The observer stays at the table. Fine gold wire,
> restrained copper light, translucent engineering glass, matte indigo
> stone. Proven sequence, refused live rooms. No logos, no readable
> text, no letters or numbers, no watermark.

![The harness ran, and the live rooms stayed closed](../visuals/grok-01a06253-approval-engine-harness-live-rooms-closed.jpg)

## Handoff

This stretch in `approval-engine` is finished. Do not deploy on
`REPLACE_WITH_RELEASE_DIGEST`. Do not claim live consume. Wait on KeyCape
for audience and clients, on the digest-pinned rollout for T03, on
`AUDIT-WP-0009` T04/T06/T09 for drain reconciliation, and on
`SECRETS-WP-0007-T04` / `SECRETS-WP-0008-T02` for a served consume
binding. Until those exist, T01 stays `progress` and T03–T05 stay `wait`.

Pleasure working with you.