PR: https://git.cafe/pingdotgg/t3code/pulls/25237
Head: d13cdc37c646a85786e2f80263ee8b8166f38513
Baseline github/main: 9ebca5f71cbcf050e94732f0a1da041073223c84
Linux, Node v24.22.1, Chrome via repository playwright-core.
No mocks, fixtures, replay provider, or repository code changes.

Runtime setup:
vp i in each checkout; vp run dev --no-seed (PR explicitly --home-dir .t3).
Service launcher imported from each checkout and main() called unchanged.
runtime/versions/<version>/t3 is an executable shell wrapper that execs the
checkout actual node src/bin.ts serve, with its isolated home, same backend
port and existing Vite dev URL. It is not a packaged executable or OS unit.
Default 30-second ownership poll retained; no override.
Projects and threads created in web UI; real Codex gpt-6.1-sol turns.

MAIN:
07:39:12 launcher child refused actual dev server ownership, exited 78.
Launcher: Another T3 Code server owns this T3 home. Stop it, then restart this service.
Real Codex reply before release: ownership verification ready.
07:41:51 competing dev backend stopped via captured PID 17005.
07:43:06 backend curl exit=7 (connection refused), launcher still alive.
Web client remained reconnecting. Observed 75 seconds after release.
Main launcher and dev process group stopped before PR dev startup.

PR:
07:44:37 launcher child refused actual dev server ownership, exited 78.
Launcher: Another T3 Code server owns this T3 home. This service starts again once it stops.
Competing dev server kept working: real Codex gpt-6.1-sol completed original prompt.
07:45:51 competing dev backend stopped via captured PID 25735.
Launcher: The T3 home is free again. Starting the server.
07:46:09 actual server Listening on http://0.0.0.0:13773
New runtime PID 28617, serviceManaged=true, serverVersion=0.1.2.
Web client automatically reconnected, retained auth and previous thread.
Second message in same thread completed: recovered provider turn works.

NEIGHBORING STOP:
07:46:44 second launcher refused ownership while recovered server kept running.
Stopped blocked launcher via captured PID; launcher no longer alive.
07:47:06 stopped recovered launcher via captured PID.
07:47:41 backend still connection refused, blocked launcher did not reclaim.
No restart after explicit stop and subsequent ownership release.

CHECKS:
Blacksmith: vp i && vp test run apps/server/src/serviceLauncher.test.ts
16/16 passed, including recovery, stop, ownership, update commit and rollback.
GitCafe head checks: 29 successful, 0 failing, 0 pending.

LIMITS:
No native mobile, Electron, macOS/Windows, installed systemd/launchd unit,
packaged binary, tunnel/relay reconnection, or real pending self-update flow.