Issue 22033 real application reproduction on main 27e0c684c5, Linux fs-27, web dev client, Claude Sonnet 5.5, CLI 2.1.303.
Browser 1280x800. Fresh isolated worktree state; live snapshot migration incompatible. No injected SDK frames.
Steps: 60 sequential echoes; queue followup; Stop; CLI thread send: background Node30s, foreground Node26s,300word reply; on notification launch background native Agent60echoes. CLI ping about60s after launch.
Native lifecycle:
[2026-10-24T10:38:43.523Z] {"subtype": "task_started", "task_id": "bbtgshpi2", "task_type": "local_bash", "status": null, "description": "Run 30s background timer", "summary": null}
[2026-10-24T10:38:47.847Z] {"subtype": "task_started", "task_id": "bkkxv604h", "task_type": "local_bash", "status": null, "description": "Run 26s foreground timer", "summary": null}
[2026-10-24T10:39:10.995Z] {"subtype": "task_notification", "task_id": "bkkxv604h", "task_type": null, "status": "completed", "description": null, "summary": "Run 26s foreground timer"}
[2026-10-24T10:39:13.615Z] {"subtype": "task_notification", "task_id": "bbtgshpi2", "task_type": null, "status": "completed", "description": null, "summary": "Background command \"Run 30s background timer\" completed (exit code 0)"}
[2026-10-24T10:39:17.995Z] {"subtype": "task_started", "task_id": "a38eeaf5b4c5ef5a1", "task_type": "local_agent", "status": null, "description": "issue22033 lineage probe", "summary": null}
[2026-10-24T10:40:35.382Z] {"subtype": "task_notification", "task_id": "a38eeaf5b4c5ef5a1", "task_type": null, "status": "completed", "description": null, "summary": "PROBE_22033_OK"}
Projection read at 2026-10-24T10:41:24.290384+00:00
{"ordinal": 1, "status": "interrupted", "queueHeld": null, "requestedAt": "2026-10-24T10:37:46.718Z", "startedAt": "2026-10-24T10:37:47.106Z", "completedAt": "2026-10-24T10:38:04.557Z"}
{"ordinal": 2, "status": "queued", "queueHeld": true, "requestedAt": "2026-10-24T10:37:59.583Z", "startedAt": null, "completedAt": null}
{"ordinal": 3, "status": "completed", "queueHeld": null, "requestedAt": "2026-10-24T10:38:36.240Z", "startedAt": "2026-10-24T10:38:36.409Z", "completedAt": "2026-10-24T10:39:15.889Z"}
{"ordinal": 4, "status": "queued", "queueHeld": true, "requestedAt": "2026-10-24T10:39:15.935Z", "startedAt": null, "completedAt": null}
{"ordinal": 5, "status": "completed", "queueHeld": null, "requestedAt": "2026-10-24T10:40:18.825Z", "startedAt": "2026-10-24T10:40:18.906Z", "completedAt": "2026-10-24T10:40:21.180Z"}
SUBAGENT {"nativeTaskRef": {"driver": "claudeAgent", "nativeId": "a38eeaf5b4c5ef5a1", "strength": "strong"}, "status": "running", "progress": "Running Echo step 49", "result": null, "startedAt": "2026-10-24T10:40:19.601Z", "completedAt": null, "updatedAt": "2026-10-24T10:40:20.912Z"}
Result: final completed notification received, row remains running; wake4 held and later wakes swallowed.