Replaces the 2026-09-11 remote-exec hold: WinRM exec is allowed only for the on-box steps of a
user-requested deploy; ad-hoc diagnostics/version checks use SMB, HTTP or SQL. SMB file copies and
direct SQL logins remain always allowed. Scope rules live in the winrm skill's Scope section.
CLAUDE.md: ScadaBridge row records main @ 17864d1a (records only, code tip
2b9a7c3c) deployed on vd03 and the vq03/vq04 pair; Theme/Auth/LocalDb rows
lose their "not yet deployed" caveats (QA pair now runs LocalDb replication,
connected); tier note gains the deployed-state line and the winrm access path.
deployment.md: §2.1 access rows replaced by the winrm skill (WinRM 5985 +
SMB 445; servecli/psbridge retired), §7.1 port map gains 5985/445 and marks
6150 retired, live-state table updated (OtOpcUa active flipped to node-a),
new "Deployed builds on QA" paragraph, §9 deployed-state summary.
Claude-Session: https://claude.ai/code/session_01RgthVLVU5CJ8SUuEwruTkt
Row in the sister-project table, a BTDB-edges subsection (Galaxy write contract, ScadaBridge inbound-API SAPID lookup on db-connection BTDB, Historian CLR/INSQL co-location), break-surface note, Windows-only build commands, and the DARS bullet now points at the unversioned WW_ARCH/BatchTracker_DB fork. Full schema/contract notes and the 2026-09-03 gap analysis live in .claude/skills/sister-project-history/btdb.md.
Claude-Session: https://claude.ai/code/session_01Wzg6NUCWHipSexLs2cgRFv
Baselining one table used to set a single per-DATABASE needs_snapshot bit, and a
snapshot streams every registered table in full — so opting one table into
replication late re-sent all of them, in both directions at once on a pair
enabling replication late. On a database holding a high-volume table (an event
log at its retention cap) that is the largest transfer this library performs.
0.2.1 documented the cost and deferred the fix as needing an on-disk change.
Schema v3 adds __localdb_snapshot_state (table_name PK, needs_snapshot), created
by the shared DDL with IF NOT EXISTS so an older file gains it on open; the v2->v3
transition is a version stamp only. RegisterReplicated(..., baselineExistingRows:
true) now flags that table alone. The database-wide flag survives unchanged for
the paths that genuinely reach every table — a cap prune or an impossible peer ack
loses delta continuity for the oplog as a whole. DeregisterReplicated drops a
table's pending flag with its ledger rows, since nothing would ever stream (and so
clear) it afterwards.
Wire compatibility is additive and negotiated by CAPABILITY, not version:
lib_schema_version stays 1 because ValidateHandshake compares it fail-closed for
equality, so bumping it would stop 0.1.x/0.2.x pairs syncing outright. Handshake
gains supports_partial_snapshot (field 5) and SnapshotBegin gains a tables scope
(field 2) where EMPTY means all tables — precisely what a pre-0.3.0 sender emits
and what a pre-0.3.0 receiver assumes. A peer that does not advertise the
capability is served a full snapshot: a scoped one would make it advance
last_applied_remote_seq to the snapshot's as-of and silently discard every delta
below it for the tables left out.
For the same reason a partial snapshot moves no watermark on either side. The
receiver keeps last_applied_remote_seq (carrying only the HLC across, which is
MAX-guarded), and the sender keeps _sentThruSeq, so the deltas the snapshot
overlaps are still pumped and merged by LWW.
Crash safety: snapshot debt now clears on the receiver's new SnapshotAck rather
than on enqueue, so an ungraceful exit part-way through re-streams the same scope
on reconnect. The ack rides the unbounded CONTROL lane like DeltaAck, so it
composes with 0.2.1's bounded 64-message inbox and its out-of-handshake snapshot.
Against a pre-0.3.0 peer the 0.2.x clear-on-enqueue behaviour is kept — there is
no ack to wait for — with the handshake's horizon gap check as the net.
Tests 199/199 (was 188): single-table baseline streams only that table, mixed-
version interop (peer without the capability gets a full snapshot), debt standing
until SnapshotAck, partial snapshot not advancing the receiver's watermark, no
SnapshotAck emitted to an old peer, end-to-end over two real databases, plus v2->v3
upgrade and per-table flag isolation.
README, ILocalDb remarks (which named this as the follow-up) and the umbrella
CLAUDE.md index updated.
The umbrella LocalDb row and the pack/test quick-reference now name 0.2.1 (188 tests,
3 nupkgs on the feed). Records both findings, the snapshot-out-of-handshake change that
bounding the inbox required, and the deferred per-table needs_snapshot. Consumer pins are
unchanged: ScadaBridge still pins 0.2.0, OtOpcUa still pins 0.1.3.
deployment.md:
- §1/§2.1: add wonder-app-vq03, wonder-app-vq04 and wonder-sql-vq03 with IPs and
per-host roles; new §7.1 QA port map + live active/standby state.
- QA is a real 2-node HA pair (ScadaBridge central+site pairs, OtOpcUa pair) where
DEV is a single all-in-one box, so it is the only environment here that exercises
failover and leader election. MxGateway/HistorianGateway/Overview run on vq03 only.
- Every QA fact is marked scan (port probe) or dash (read off the QA Overview
dashboard's live polling). No QA config file was read; connection strings and
service names stay unverified.
- Correct the tier: vd03 is DEV, not production (vd=dev, vq=qa, per
mes-delmia-integration-api.md §1.1). Its ASPNETCORE_ENVIRONMENT really is
"Production" -- a .NET overlay name, orthogonal to the tier, and the likely source
of the original error. No production box has been identified.
- Record that QA requires Basic auth on /management where DEV does not, so DEV-only
procedures relying on unauthenticated management calls will not work on QA.
- Record that inbound API keys never cross environments (per-stack peppered-HMAC,
excluded from config bundles) plus the 401-vs-400 probe, with the caveat that auth
runs before route resolution so a 401 needs a positive control.
- Withdraw the SSH-on-2222 claim made earlier in this same pass: all three wonder
boxes accept TCP on 2222 and send no SSH banner, so servecli is not serving SSH and
no shell access was available. Port scan cannot establish a service; banner grab can.
CLAUDE.md:
- Overview: record the second instance on wonder-app-vq03:5320, and that its real-FQDN
registry is correct rather than a divergence -- the 127.0.0.1 rule is specific to
vd03 co-locating every instance on one host.
- Add the DEV-vs-prod note pointing at deployment.md §2.1/§7.1.
Joseph Doherty