PR 29239 runtime verification, Linux Boat VM, 2026-11-02
main: github/main 55e2538561
head: c38a7d4d9fc1efdf6a1e3f7a9957783aafa0be5a
Browser: repository Playwright 1.60.0 + /usr/bin/google-chrome
Provider: real Codex 0.164.0, gpt-6.1-sol through configured local proxy
Data: project created through web app pointing at /home/user/verification-repo;
all threads and turns created through web app; no mocks or fixtures.

main server: vp run dev, ports 16733 / 8693, isolated ../main/.t3
1. Complete marker turn: ORCHID-29239.
2. Start later parent turn: sleep 180; printf LATER-29239.
3. Click Fork from this response on completed marker response.
4. Send marker recall prompt before parent finishes.
Observed: Context handoff visible; persisted transfer strategy portable_context;
parent ordinal 2 running; fork returned ORCHID-29239.
Stopped parent through UI, stopped main server by captured process-group PID.

PR server: vp run dev --home-dir /home/user/t3code/.t3, ports 13773 / 5733
Repeated identical marker and later-parent prompts.
Busy fork 1 native thread: 01a19e74-fe1b-7cd1-b155-048e6be9422c
Busy fork 2 native thread: 01a19e76-587d-7e03-8b65-632f36a8bcc8
Both: native_fork consumed; no Context handoff; ORCHID-29239 returned.
Parent ordinal 2 remained running while forks answered.
Parent subsequently completed normally: LATER-29239.
Idle fork from original response: 01a19e78-bd6e-7ab2-81f0-62f0ff17aba9
Idle fork: native_fork consumed; ORCHID-29239 returned.
All three native Codex rollout headers:
  forked_from_id = 01a19e74-5cee-74a0-b447-b1259d7f103e
  history_base.end_ordinal_exclusive = 23
Resolved inherited parent records before ordinal 23: ORCHID-29239 present,
LATER-29239 absent. Later prompt is parent ordinal 26; excluded in all forks.
One extra unsent fork was created during recording setup; no provider turn ran in it.

Blacksmith remote focused existing regression tests:
cd apps/server && vp test run src/orchestration-v2/CommandPolicy.test.ts src/orchestration-v2/ProviderTurnStartService.test.ts -t "forks a busy source|planned native side chat fork"
2 files passed, 9 tests passed, 51 nonselected tests skipped, exit 0.
GitCafe reported all 29 head CI contexts successful.
No source changes, commits or pushes.

Not exercised: native desktop/mobile clients, non-Codex providers, relay/tunnel,
real synthetic /goal and missing-native-boundary scenarios (covered only by
focused regression tests), preservation of pre-boundary reasoning/tool items
(the selected first turn intentionally used no tools).