Mined the full decompiled stock 2023 R2 managed client as the oracle for every
still-pending gRPC item. Governing fact: ArchestrA.HistorianAccess is a C++/CLI
shim into native HistorianClient; the managed Grpc*Client wrappers have zero
call sites, so buffer-building/dispatch for the pending items is native (absent
from the binaries). Sharpened verdicts into handoff.md:
- Items 4/5/6 + OpenStorageConnection: hard-confirmed walled, with real reasons
(SQL gated out client-side via IsManagedHistorian; no Revision RPC in the gRPC
contract; LoadBlocks response is a native blob behind the storage console handle).
- Items 3 (SendEvent) and 7 (DeleteTEP): moved from vague to precise, LOCAL-box
capturable targets (PackToVtq btValues / DeleteTagExtendedPropertiesByName
BtInput with deleteFromServer=true).
Also correct the HistorianGrpcRevisionProbe doc comment: it probes the
non-streamed ORIGINAL-insert path (AddNonStreamValues), a distinct capability
from revision EDITS (native AddRevisionValues trio, no gRPC RPC) — the prior
comment conflated them.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B6mcaT2PjRFKcogzp9UkfC
Joseph Doherty
ae536bb4b8