key-cape/workplans/KEY-WP-0014-native-credential-lane-handoff.md
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Ship the live-registration check both blocked tasks depend on
KEY-WP-0013-T02 and KEY-WP-0014-T04 stay blocked on custody and on ops-warden,
but each contains a KeyCape-owned piece that had been left as prose. T02 requires
proving "live JWKS verification and denied excess scopes without logging values";
T04 step 4 requires verifying a rotated secret, refusing its predecessor and
refusing excess scope. Both were describable and neither was runnable, so the
proof would have been improvised by hand against production at the moment custody
lands -- the worst possible time for it.

keycape verify-client does it in one command. Per registration it checks
discovery origin, the client_credentials exchange and its RS256 signature against
the deployed JWKS, exact sub/tenant/roles/principal_type, that every -deny-scope
is refused, and that the token carries no scope that was not requested. That last
check is a real gap: the caller commands prove every requested scope was granted,
never that nothing extra came back. -previous-secret-env additionally requires
the predecessor to be refused, and treats an unchanged secret as a rotation that
did not happen.

Nothing is written to disk and no value is printed. Failures name the claim, not
the observed value, so running this against production cannot turn a verification
into a disclosure. Every check runs before it reports, so one failure does not
hide the rest.

The exact invocation for each approval client is recorded in the verification
block of the provisioning packet, so custody admission hands back a command
rather than a description.

Tests cover the passing case, an over-broad registration, a live predecessor, an
identical rotation and output non-disclosure; neutering mustFail makes the suite
fail, so the checks have teeth.

Also recorded in KEY-WP-0014: read from ops-warden's catalog rather than waiting
for a reply, key-cape-oidc-login is asked-and-waiting on us since 2026-08-28 and
is a pointer lane with no programmatic consumers, and the rapp-qonto-keycape-client
blocker citing an absent native exchange command went stale when service-token
shipped on 2026-09-05.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016uV8zoCKpA1WRAxsKRYbdH

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 1182213@bnt-lap001
Assistant-Session: 966597b9-ae61-46a4-8b9e-1594ab3ec4ad
2026-09-08 14:30:43 +02:00

138 lines
6.2 KiB
Markdown

---
id: KEY-WP-0014
type: workplan
title: "Review native login and client credential lane handoffs"
domain: infotech
repo: key-cape
status: blocked
owner: codex
topic_slug: native-credential-lane-handoff
created: "2026-09-05"
updated: "2026-09-08"
state_hub_workstream_id: "0d003df3-f7d3-5063-8ca0-e1e33f7df74a"
---
Source: ops-warden inbox message 0dd9c7bd-0ecd-42d1-806f-7cc4ba9730ed.
The native service exchange and public PKCE login commands are now implemented.
Cross-owner rotation and consumer-specific route cutover remain outstanding.
## Design owner command and custody boundaries
```task
id: KEY-WP-0014-T01
status: done
priority: medium
state_hub_task_id: "0c0a0b61-c19e-5631-9cda-8b2dc0f47d8f"
```
Review ops-warden's existing key-cape-oidc-login proxy and
rapp-qonto-keycape-client route contracts. Specify the native interactive login
and bounded exchange commands, token delivery, renewal and custody-mediated
rotation before implementation. Keep secret custody with OpenBao and avoid
retiring the proxy until replacement commands have equivalent verification.
## Verify handoff delivery evidence
```task
id: KEY-WP-0014-T02
status: done
priority: low
state_hub_task_id: "d9a5de97-b7d5-5599-98c2-eaab32f51495"
```
Ops-warden reports KEY-WP-0009-T04's claimed reply did not arrive. Verify prior
receipts for all four named recipients before claiming successful notification.
No outbound coordination messages were sent during the 2026-09-05 repo review.
## Implement and verify native caller commands
```task
id: KEY-WP-0014-T03
status: done
priority: high
state_hub_task_id: "4e46f474-a15e-594f-ae07-ad37a9667d89"
```
Implemented keycape service-token and login with HTTPS discovery, RS256/JWKS
verification, exact audience bindings, PKCE/state/nonce, private out-of-Git file
delivery and redacted errors. Service Basic authentication now form-decodes
credentials. Integration tests exercise the real token/JWKS handlers and browser
callback, including forged state, tampering, excess scope and unsafe output.
See docs/native-authentication.md for invocation and ownership boundaries.
## Admit rotation and verify consumer handoff
```task
id: KEY-WP-0014-T04
status: wait
priority: high
state_hub_task_id: "e7632c71-9676-5837-a925-7f905e3015c5"
```
Qonto rotation requires admitted custody/provider transaction and rollback
semantics; see the exact review sequence in docs/native-authentication.md.
The current login proxy yields an OpenBao token, so it cannot be replaced by a
JWT-writing command without adapting its consumer contract. Verify that split
with the platform owner and ops-warden before route changes. No route was changed.
2026-09-05 receipt audit: GET /messages/?from_agent=key-cape returned one
2026-03 image-publication message and no KEY-WP-0009 handoff receipts for
NetKingdom, secrets-engine, ops-warden or railiance-platform. Corrected the
unsupported statement in KEY-WP-0009-T04. This proves only that no receipts
are present in the current Hub response, not that no message ever existed.
The 2026-09-05 audit's finding stands as recorded; the replacement outbound
messages were sent on 2026-09-08 (below).
2026-09-08: `0a6c9d88-cf50-45d8-acdc-99a40747683e` -> ops-warden, readable back
via `GET /messages/?from_agent=key-cape`. It puts both open questions to the
route and custody owner in one place:
1. The `key-cape-oidc-login` proxy yields an OpenBao token and `keycape login`
yields an issuer JWT — different credential types, different verifiers,
different enforcement owners, so not interchangeable. Two admissible options
are offered: keep the proxy and run `keycape login` alongside it for JWT
consumers, or adapt the route's consumer contract to a JWT and then cut over.
Option (a) is recommended until every consumer of the route is enumerated.
2. Qonto rotation for `rapp-qonto-keycape-client`, quoting the five-step reviewed
sequence from `docs/native-authentication.md` and asking who executes the
successor generation and CAS update, in which transport, under what authority.
It records that `warden route`/`warden plan` returned no exact admitted lane
and that a generic match is not being treated as authorization.
The KEY-WP-0009 handoff ops-warden reported missing has also now been delivered
(`5bc58847-eed5-4164-bb0f-a0d8455e75b8`), closing the KEY-WP-0014-T02 correction.
Task remains `wait` — no route was changed and no rotation command ships until
ops-warden answers (1) and an execution/rollback authority is admitted for (2).
2026-09-08, second pass — read ops-warden's own catalog rather than waiting for a
reply, and it changes the shape of both questions.
`registry/routing/catalog.yaml`, lane `key-cape-oidc-login`: `intended_owner` was
already corrected to key-cape, and `verified: asked-and-waiting` since
2026-08-28. **ops-warden is waiting on us, not the other way round.** The lane is
also `warden_executes: false` with a `wiki_ref` into `CredentialRouting.md` — a
pointer, per their ADR-0001, not a code path with programmatic consumers. So the
consumer-contract risk behind question (1) is smaller than assumed: adding
`keycape login` alongside retires nothing, and the acceptance we owe them is a
statement of ownership, not a cutover.
Lane `rapp-qonto-keycape-client`: `rotation.owner: key-cape`,
`automatable: true`, and `blocked_on` reads "still no key-cape-native
exchange/rotation command", `verified: source-read` 2026-08-28. **That blocker is
stale.** `keycape service-token` (T03) shipped 2026-09-05 and is exactly the
native `client_secret_basic` exchange they record as absent. It does not clear
the lane, and should be narrowed rather than closed.
Shipped here: `keycape verify-client`, which is rotation step 4 and the denial
checks step 5 rests on — new exchange verified against deployed JWKS, predecessor
refused, excess scope refused, no value printed or written. See
`docs/native-authentication.md`, "Verifying a live registration". The identical
predecessor case is treated as a failure, because an unchanged secret is a
rotation that did not happen.
Steps 1-3 remain custody's and are deliberately not automated. Task stays `wait`
on exactly two answers: which option ops-warden takes for the login proxy, and
who executes the successor generation and CAS update under what authority. No
route changed.