D-137 tier 2: local half blocking in P5; --pending-stage -> coupled projection ...

Two operator decisions, both taking the recommendation.

GATE SHAPE: local-only blocking, remote operator-run. preflight P5 now runs
creds-matrix.py --tier2 -- tier 1 STATIC plus tier 2 LOCAL, hermetic (no ssh,
no sudo). It already catches SEC-021's three dc0 on-disk absences without
leaving the jumphost. The remote half stays an operator-run check at
DC-standup close and stage close.

Wiring --remote --privileged into the deploy gate would let a host outage, a
NOPASSWD change, or a MAAS snap refresh turn the gate red for reasons that
are not about credentials, and a gate that fails environmentally is one
people learn to bypass. The repo already made this call once
(run-tests-all.sh:7-8, "different cadence"), and preflight already shows the
failure mode: P4 reads "MAAS unreachable" because it runs on vcloud while
MAAS lives on the headend.

STAGE INPUT: --pending-stage replaced by creds-manifests/stages-reached, a
machine-readable projection of CURRENT-STATE, coupled by new repo-lint L12
(the L10 pattern). A hand-typed gate parameter can be widened silently, and
GA-R1 puts status in CURRENT-STATE alone. A drifted projection would make the
gate defer REAL absences -- a false green.

Exhaustive both ways: an unclassified mint-stage is a hard FAIL, a
classified-but-unused one is a stale-declaration FAIL. That caught `stage4`
immediately -- Stage 4 is open and executing but mints no credential.

Self-inflicted break caught by the existing harness: I first renamed L10's
message to "L10/L12", breaking five cases that grep the established L10 id.
Reverted -- new rules get their own message id, they do not rebrand old ones.

Harnesses: creds-matrix 52 -> 56, repo-lint 45 -> 47, preflight 10.
Gauntlet ALL GREEN (80), repo-lint 0-fail, baseline unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

D-137 ruling 1 EXECUTED: tier 1 wired as the blocking preflight P5 ...

Operator answer, exact utterance: "wire tier 1 as the blocking preflight Pn"
(2026-07-26), resolving the open sequencing question. Recorded on D-137.

preflight.sh gains P5: credential matrix (D-137 tier 1), blocking, with
worst-exit aggregation, placed AHEAD of the stage-2 reminders block (now P6)
so its verdict participates in the deploy decision. Tier 1 only -- it is
offline and its findings ARE the three ruled failure classes. Tier 2 needs
--remote/--privileged and a caller-supplied --pending-stage, which do not
belong in an unattended gate; that stays an open decision.

FAIL-OPEN in my own wiring, caught by the new test: a missing creds-matrix.py
makes python3 exit 2, which `note` maps to WARN -- so deleting the gate would
have downgraded it to a warning rather than stopping the deploy. P4 already
guarded this class; P5 did not until T9 failed. Now guarded explicitly.

tests/preflight 7 -> 10: T8 a red register FAILS the deploy (blocking, not
advisory); T9 fails closed when the checker is absent; T10 the gate runs
before the reminders block.

CONSEQUENCE, not overclaimed: preflight exits 1 with P5 among the reasons,
but preflight was ALREADY exiting 1 before this change (P4: octavia-pki.yaml
absent, MAAS unreachable from the jumphost). P5 adds a fifth reason to an
already-red gate; it flipped nothing and closes no open deploy path.
Verified by stashing the change and re-running.

Gauntlet ALL GREEN (80), repo-lint 0-fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Patches