PR: https://git.cafe/pingdotgg/t3code/pulls/26959
main: 80a2351fcb (github/main at verification)
PR: 00f5ff103b78f9311818c958e5984e658cd68fab
Linux, /usr/bin/google-chrome, repository Playwright 1.60.0.
Real provider: codex-acp 0.16.0, gpt-6.1-sol, local Responses proxy.
Project created in the web client: /home/user/runtime-notes-repo (real git repo).
Provider configured via Settings > Providers > Add provider > Local ACP command.
The executable wrapper only tees unmodified JSON-RPC stdin/stdout to local capture files.

main server/web ports: 16733/8693
session 01a1902e-8985-7120-801a-1a5db8d43690
turn 1: orchestration instructions + request, runtime notes (1296 chars), end_turn.
turn 2: request (84 chars), runtime notes (1296 chars), end_turn.
Client response: ORCHID-26959. Original duplication reproduced.

PR server/web ports: 13773/5733
session 01a1902f-b742-7e60-96eb-cf9ce9573134
turn 1: orchestration instructions + request, runtime notes (1296 chars), end_turn.
turn 2: request only (84 chars), end_turn.
Client response: ORCHID-26959. Runtime notes omitted on unchanged follow-up.
Tool turn: pwd completed, output /home/user/runtime-notes-repo; marker retained.
New session 01a19033-41dd-73e0-861b-c9e650e5256d:
turn 1: orchestration instructions + request, runtime notes (1296 chars), end_turn.
turn 2: request only (84 chars), end_turn; client response ORCHID-26959.
Native Codex app-server gpt-6.1-sol: pwd completed; client response directory + NATIVE-26959.

Compaction limitation:
Bare /compact is intercepted by the server and fails before any ACP frame:
Error: This provider does not support context compaction.
/compact keep the marker ORCHID-26959 reaches the live agent as one bare block.
Agent reports Context compacted as plain agent_message_chunk text, then end_turn.
No compaction_update or Copilot session.compaction_complete is emitted.
Following request has no runtime notes; marker recall succeeds.
Thus recognized-compaction reinjection was not verified with this live provider.
No Copilot credentials, native mobile, macOS, or Windows verification.

Blacksmith:
164 focused tests passed across AcpAdapterV2, runtimeModel, effect-acp client.
vp run check:changed d92c437baa19409f99416a44f748f148f4317c65 passed:
format, lint, both knip passes, GraphQL generation check, 14 package typechecks.
Explicit base and fetched PR history were required because the worker starts with a shallow snapshot.
PR CI: 29 successful, 0 failing, 0 pending at head 00f5ff103b.
No source changes or pushes.