Walks through standing up both Galaxy backends side-by-side against a
single live Galaxy:
- Conceptual layout (two MxAccess sessions on distinct ClientNames so
they don't evict each other)
- What's already on the dev box (AVEVA + OtOpcUaGalaxyHost service)
- mxaccessgw build + run + config (API key, ClientName)
- The three OTOPCUA_PARITY_* env vars the harness reads
- HarnessShapeTests as the two-line truth-teller for "did both halves
resolve"
- Galaxy-shape coverage matrix mapping each scenario to what's needed
for it to assert (rather than skip)
- Soak run recipes, including the compressed-tag fallback when the dev
Galaxy doesn't have 50k attributes
- Troubleshooting for the four common SkipReasons
- Three further gates before PR 7.2 lands (matrix green, soak data,
pilot flip)
Explicitly drops the stale "use a non-elevated shell" precondition —
the legacy Galaxy.Host pipe ACL accepts elevated and non-elevated
dohertj2 alike (resolved 2026-04-24).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
