Let the daemon own an unattended relaunch; the pane waits for it

[scgopi]

The report

Restarting a loop started a fresh session instead of resuming it — a goal-based loop re-issued its /goal directive and the conversation the restart existed to keep was orphaned. Reported against both app affordances (Loop ▸ Restart Session, Restart All Sessions…), reproducible on the second press.

What was measured

The restart machinery is not at fault. Every path I could drive resumed correctly:

Path	Backend	Type	Result
graphcode node restart	Claude Code	goal	✅ ensure resume
graphcode node restart	Claude Code	time	✅ ensure resume
graphcode node restart	Copilot	goal	✅ --resume, same directory, twice
app Restart Session	Claude Code	turn	✅ open resume
app Restart Session	OpenCode	time	✅ ensure resume

The failing case, a Copilot goal loop open in the app, logged this — twice, over two presses:

00:54:16 restart killed
00:54:16 ensure resume    ← the daemon did the right thing
00:54:16 open fresh       ← the pane launched fresh, same second

and the surviving process was the pane's: copilot --yolo --name graphcode-… --interactive "$GRAPHCODE_TRIGGER_PROMPT" — no --resume, goal re-issued. The controlled comparison is the point: same backend, same loop type, no pane open → resumed on both restarts.

Root cause

GhosttyTerminalView.localResumeOrFreshCommand guards on SessionIDStore.load(forNodeID:) != nil. Its unbanked fallback had no zmx get guard and no resume branch — it unconditionally created the session fresh. That is harmless while a session is alive, because zmx attach ignores its command argument then, and fatal in the window right after a restart's kill, where it races ZmxSessionLauncher.restart's detached start and wins often enough to be the bug.

Local Copilot took that branch every time: nothing banks a Copilot session id on this machine — CopilotSessionLog's banker is the remote ensure's, and Copilot has no SessionStart hook the way Claude Code does — so SessionIDStore.load is permanently nil for it locally and the resume branch was unreachable. Claude Code, OpenCode and Codex all bank, which is why they resumed and Copilot did not.

The Copilot half is a regression from d8ea180, which reverted the local Copilot resume work (#248/#249) on 2026-09-02.

The change

An unattended loop's pane now waits for the session the daemon is starting and attaches to it, instead of racing it with a launch that carries the prompt — the same ownership split the remote pane already makes for a missing unattended session, and the same one the Codex pane makes for every launch. An attended loop keeps the fresh launch: no daemon starts a turn-based loop, so a pane that waited for one would wait out its whole minute.

waitingAttachCommand gains a dial line (open await-daemon), since waiting was otherwise the one launch decision the dial log could not tell apart from a pane that never opened.

Verification

From the worktree, private DerivedData, exit codes quoted:

• xcodebuild … -scheme graphcode build → exit=0, ** BUILD SUCCEEDED **, 0 errors
• xcodebuild … -scheme graphcode test → exit=0, ** TEST SUCCEEDED **, 1643 tests in 170 suites passed
• xcodebuild … -scheme graphcode-cli build → exit=0 · -scheme graphcoded build → exit=0
• swiftlint lint → exit=0, 0 errors · swift format lint --strict → exit=0

New/changed tests, all observed running:

• anUnattendedNodeWithNothingBankedWaitsForTheDaemonInsteadOfRacingIt — goal and time, asserts it waits, logs open await-daemon, and never types the opening prompt
• anAttendedNodeWithNothingBankedStillLaunchesFresh — was aNodeWithNothingBankedStillLaunchesFresh, now pinned to a turn-based loop, which is the case that branch is still for

Noted, not fixed here

A local project has no repeating liveness sweep — ProjectRegistry starts startRemoteLivenessSweep only for remote projects, so a local unattended loop whose session dies is not revived until the daemon restarts or the project reloads. Verified by raw-killing a probe's session and watching nothing bring it back. That is the already-tracked issue #276.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KdnA1YedzfZVxRsNVGuKAN