F7: office1-tailscale is labelled a subnet router and advertises no routes ...

Raised from an operator report of Permission denied (publickey) reaching voffice1 "from my
workstation via tailscale". Measured rather than assumed, and the premise did not survive.

tailscale is absent from BOTH voffice1 and vcloud -- no binary in any standard location, no
state dir, no interface, service not running. Checked with explicit path probes after an
initial `command -v`, because tool-absent-from-PATH reported as feature-absent is a trap this
repo has hit repeatedly.

The tailnet node is a separate LXD guest INSIDE voffice1: office1-tailscale, RUNNING,
100.64.0.53, site leg 10.10.1.11. Its tailscale status reports AdvertisedRoutes: <none>. So
nothing on the tailnet can reach 10.10.0.20 -- there is no route and there never was.

Two records made the false belief look supported: the ssh stanza labels it "Office1 subnet
router (D-107)", and the operating skill's routing table says the workstation reaches voffice1
over the tailnet, citing D-107 -- which is titled "Airgap posture, per-DC artifact mirror, and
NTP (VR1)" and rules nothing of the sort. A real citation that does not support its claim.

RULED (operator): option (a), ProxyJump through vcloud. Option (b), advertising 10.10.0.0/24
onto the tailnet, was presented and not taken -- it exposes the isolated site net, a posture
change against the airgap subject D-107 actually governs.

Fixed operationally outside the repo: vcloud's ssh config now matches Host voffice1 10.10.0.20,
so the raw IP resolves to the office1 service key with IdentitiesOnly yes instead of falling
through to the id_* defaults, which was the actual cause. Both forms verified, with a negative
control proving the key is not offered to unrelated hosts.

Third wrong record this session, after D-124's MAC-sourcing instruction and the skill citation.
Two of the three surfaced only because something adjacent was being fixed; nothing here gates
prose, so no check could have caught them.

repo-lint 0 fail.

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

Five Stage-5 findings raised, none executed: R7's per-DC Octavia PKI is half built ...

F1 (HIGH): the D-109 amendment rules per-DC independent Octavia CAs, and the
2026-07-29 work correctly made the CA subject and the VIP gate per-DC -- but $DC
appears in no PATH. phase-01-bundle-deploy.md:293 is a fixed $HOME/octavia-pki and
:473 writes a fixed overlays/octavia-pki.yaml, so generating dc1 after dc0
overwrites dc0's issuing-CA key, controller-CA key and both passphrases, and a
later dc0 redeploy reads the fixed overlay name and applies dc1's CA to dc0 -- the
cross-DC shared amphora root R7 explicitly refused. The existence checks at
phase-01:86 and pre-flight-checks.sh:65 cannot detect it: they ask whether the file
exists, never whose CA it is. The gap is in R7's own "Work implied" list.

F2: creds-matrix.tsv:103-111 declares all nine Octavia credentials `singleton`,
while creds-matrix.py:368-398 enforces both-DC existence only for `per-DC` rows --
so the register behind the BLOCKING P5 gate is structurally blind to a missing
second PKI set. Baseline captured (82 rows, 7 findings, exit 1) so the delta is
attributable. Must land before generation.

F3: both ~/octavia-pki/ and overlays/octavia-pki.yaml are ABSENT (existence only,
no contents read), so F1/F2 are fixable at zero risk right now; the window closes
when the first DC's PKI is generated.

F4: .gitignore:40 is an exact path, so a per-DC overlay rename would un-ignore a
file holding CA key blobs plus a plaintext passphrase, in a repo SEC-004 records as
PUBLIC. The F1 fix must widen the glob in the same commit.

F5: preflight.sh:99 sets DC without exporting it and pre-flight-checks.sh never
reads DC at all, so a dc1 invocation runs a DC-aware P2 beside a dc0-frozen P4
under one combined verdict.

Logged not executed per hard rule 1. repo-lint 0 fail / 615 files.

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