D-137 phase 3: re-measure the register; SEC-024 opened ...

~21 inferred filenames corrected against their own mint-refs. The session had
owned six; those were only the rows the first sweep physically touched.
Octavia's 8 real basenames plus its THREE SUBDIRECTORIES (the bare
~/octavia-pki/* pattern matched ZERO of the 8 artifacts, two of them CA
private keys); vault's init.txt; the tenant rows' <client>- instance prefix,
with a placeholder matcher so they can match a real basename at all;
kube-config -> config; .maas.cli -> .maascli.db (measured: ~/.maas.cli does
not exist).

sec-ref mis-attribution corrected: both juju-maas-user rows cited SEC-020;
the on-subject rows are SEC-018/-019. This is the SEC-015 class recurring --
one instance was fixed by hand earlier without checking whether it was
systemic. It was.

mint-ref corrected: admin.pass cited a CONSUMER (:452), not the mint (:450);
the RGW key cites a line that takes it as INPUT, so it is operator-terminal.

Rows added: the libvirt SSH power password (standing rotation obligation from
a 2026-06-26 plaintext exposure, in neither the matrix nor the exclusions),
vault-ca-root, and the tfstate siblings. ~/as-executed/ deliberately NOT
declared, reason recorded: it holds session logs, so declaring it made every
log a false UNDECLARED.

Four further defects in my own phase-2 changes, found by RUNNING the sweep:
shlex.quote broke ~ expansion; a non-existent parent read as unreadable
rather than absent; site-key `-` needed shared-location semantics; the
tfstate siblings needed rows.

SEC-024 OPENED -- new exposure found by the fixed checker on its first clean
run: opentofu/terraform.tfstate.backup is mode 0664 and carries the MAAS API
key in plaintext (DOCFIX-175); the live state file is 0600. Invisible to
every prior control because the world-readable check was custody-gated and
the siblings were undeclared. LOGGED, NOT ACTIONED (hard rule 1).

Findings 35 -> 13, all true. Matrix 81 rows. Harness 44/44, creds-audit
15/15, 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

D-137 phase 2: fix the eight confirmed false-greens, regression-lock each ...

Tier 2 is now scoped by (host-role, SITE-KEY). Keying on role alone merged
all three jumphost creds folders into one basename namespace, so a credential
present at ANY site satisfied the row for EVERY site -- how SEC-021's dc0
opnsense-api.txt absence passed a green sweep while tier 1 flagged it. Four
committee lenses converged on this. vm-secret-locations gains a site column.

Also fixed, each reproduced by the committee and each now regression-locked:
- probe_remote called a successfully-read location UNREACHABLE when its glob
  matched nothing, gating the role and turning every absence FAIL there into
  an [ok]; a __DONE__ liveness marker now separates "ran, found nothing" from
  "could not reach".
- literal-file locations skipped absent/unreadable detection entirely (the
  T33 false green surviving in the other path form).
- an EMPTY locations list bypassed ruling 3's refusal.
- a zero-row matrix reported clean over the empty set.
- a mint-ref pointing at a directory crashed with exit 1 -- indistinguishable
  from findings -- and skipped S5/S6/S7, silently dropping the conflation and
  asymmetry findings.
- mode enforcement was custody-gated, leaving 43 of 77 rows unchecked
  including the SEC-020 and SEC-022 stores; a world-readable check now
  applies at any custody.
- S5's dc1->dc0 direction was untested; deleting it left the harness green.
- rows with no declared location for their scope are disclosed, not skipped.
- declared paths/targets are charset-validated and shell-quoted: an
  unvalidated `;` reached a remote shell, under sudo when --privileged.
- creds-audit sprawl globs now cover dotfiles; the prior widening could not
  see .admin.pass, the dotfile sibling of its own motivating secret.

T24 replaced with a checked-in finding-CLASS baseline. The old form grepped
for the literal "IDENTITY CONFLATION", so REMEDIATING that defect would have
turned the gauntlet red for whoever did the right thing -- making "edit the
test" the cheapest response exactly when the guard mattered.

Harness 35 -> 43, creds-audit 13 -> 15, gauntlet ALL GREEN (80), lint 0-fail.

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

D-137 tier 2: wire --privileged escalation (run BLOCKED by the auto-mode classifier) ...

--privileged retries a remote probe with `sudo -n` ONLY where the
unprivileged probe returned `unreadable`, keeping the privileged surface as
small as ruling 3 keeps the search surface. Metadata only; the T22
metadata-only guard still passes; verified inert (zero escalations) when
nothing is unreadable.

The operator approved the privileged read, but the auto-mode classifier
denied the remote-sudo shape -- the same wall the 2026-07-23 close recorded,
whose noted fix is manual permission mode. NOT worked around: reading a
root-owned directory is exactly the privilege being denied, so any
alternative would fail identically or misrepresent the result.

SEC-022 shadow-store contents and the SEC-020 region secrets stay
UNCONFIRMED; the sweep reports them as E0 UNREADABLE FAILs, which is the
correct outcome for an audit that could not look.

Also de-staled the docstring tier table (tier 2 is built).
Harness 35/35, 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

D-137 tier 2: live read-only sweep + two probe false-greens it exposed ...

SEC-021's ON-DISK half REPRODUCED: vr1-dc0-maas-power_ed25519{,.pub} are
genuinely absent from the dc0 jumphost creds folder, not merely undeclared.
Capture: docs/audit/d137-tier2-sweep-20260726.txt (read-only, no sudo,
stat-over-ssh metadata only; jumphost + voffice1 + office1-netbox).

Running it against real hosts exposed two false-greens in the probe:

1. "absent" vs "could not look". /root/maas-secrets and /root/netbox-secrets
   reported "does not exist" -- they exist; SEC-020 is precisely about
   admin.pass living in the first. An unprivileged [ -d ] on a root-owned
   parent is indistinguishable from a missing directory. The probe now tests
   parent traversability and reports UNREADABLE as a FAIL, not a skip.

2. Role-level aggregation manufactured false absences: skipping one location
   let a role's other locations cover it, so credentials in the unprobed
   location reported EXPECTED-BUT-ABSENT. Absence is now asserted only over
   fully-probed roles (14 rows report NOT JUDGED). Refinement: "absent" is a
   conclusive observation and does not gate a role; only unreadable and
   unreachable do.

Harness 33 -> 35 (T33 unreadable location, T34 absent location).
Gauntlet ALL GREEN (80), repo-lint 0-fail.

OUTSTANDING: the two root-owned dirs need a privileged read, so SEC-022's
shadow-store contents and the SEC-020 region secrets stay UNCONFIRMED. That
is a remote-sudo shape and was not run.

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

D-137 tier 2 (EXISTENCE): declared-location bound, existence checks, widened globs ...

Tooling only -- the LIVE three-site sweep has NOT run, so SEC-021's on-disk
half, SEC-022 and SEC-023 are not yet reproduced as live findings.

creds-manifests/vm-secret-locations (ruling 3): the absolute bound on
discovery. Covers the jumphost creds folders, the SEC-022 headend shadow
stores, the SEC-020 region secrets dir, the three dirs outside the SEC-009
convention, plus two the ruling's note did not name -- the in-clone PKI
overlay and the DOCFIX-175 plaintext tfstate. Tenant dirs are LOCAL-only:
no tenant VM/project/host is reachable from this file, so D-069 holds by
construction rather than by good behaviour. `<repo>` is substituted at
runtime (D-110: the repo name is never hardcoded).

creds-matrix.py --tier2 [--remote]: E1 expected-but-absent, E2 mode, E3
undeclared-at-a-declared-location. Probes are `stat` over ssh -- metadata
only, never content. An unreachable host SKIPS with an explicit [ok],
because "could not look" must never read as "nothing there".
--pending-stage is supplied by the CALLER so a not-yet-reached mint stage
defers instead of failing; encoding which stages have run would put a
status claim in code, and GA-R1 puts status in CURRENT-STATE only.

creds-audit.sh sprawl globs widened for the SEC-023 blind spots
(admin.pass, *.apikey, *.key, *.pem, *_ed25519, *_rsa, *openrc*). The old
six patterns could not have matched the SEC-020 secret that sat undetected
12 days, any bare SSH key or PEM, or the predicted Stage-5 ~/admin-openrc.

Harnesses: creds-matrix 33/33 (8 new tier-2 cases), creds-audit 13/13
(was 7; five blind-spot fixtures plus T13 asserting the widening did NOT
become trigger-happy). Gauntlet ALL GREEN (80), repo-lint 0-fail.

FLAGGED DIVERGENCE from the plan's Files list: --remote is implemented in
creds-matrix.py, not creds-audit.sh. Tier 2 IS the preflight Pn and the
matrix plus locations list both live there; splitting it would mean two
implementations of one bounded walk. Ruling 3 names a bound, not a script.

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

D-137 tier 1 (STATIC): credential matrix, checker, harness -- RED by design ...

Schema amended 10 -> 12 columns (operator-ruled 2026-07-26, "go with the
12-column amendment"): adds `custody` + `notes-ref` and re-keys a row to one
(credential, location) pair. A read-first round-trip check of the three
manifests proved the 10-column form could not carry what D-137 ruling 2
forbids dropping -- and ruling 3 puts four deliberate credential copies inside
--remote's declared locations, where creds-audit.sh:63-67 would report each as
UNDECLARED. Implements ruling 2 ("prose must become MATRIX FIELDS"); OPS under
GA-R3, the five sub-rulings untouched.

Ships: creds-matrix.tsv (72 rows), creds-matrix-notes.md (32 keys),
scripts/creds-matrix.py (S1 schema / S2 both-bounds manifest coverage / S3
render drift / S4 mint-ref resolution / S5 per-DC symmetry / S6 ruling-5
principal invariant / S7 notes integrity), tests/creds-matrix 24/24.
Gauntlet ALL GREEN (80, was 79); repo-lint 0-fail.

RED BY DESIGN, 5 findings -- do not go green by deleting rows: the ruling-5
identity conflation on maas-region-admin (the live SEC-020 defect), 3x
EXPECTED-BUT-ABSENT for SEC-021's declaration half, and the S5 asymmetry on
dc0's divergently-named headend power key. 27 operator-terminal rows are the
FINDING 1 reproducibility debt, counted not faulted.

Two self-inflicted false-greens found and closed during the build: S2
enumerated only matrix-mentioned sites (an empty matrix read CLEAN -- the
sandbox-fidelity-check.py:131-143 defect one level up; now the union of both
sides, regression-locked by T9), and the uniqueness key false-failed two
identities sharing one file (T6).

NOT done, stated so the boundary is unambiguous: tiers 2-3, vm-secret-locations,
the SEC-009 demotion, and the ruling-1 preflight Pn -- whose blocking-vs-deferred
sequencing is an OPEN operator question. No manifest rewritten; no cloud state
touched.

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