T3 Code — dev database settlement proof
BEFORE | commit 5cff012416
Environment: Linux; real Node server; isolated synthetic T3 home
Source: one idle thread created ten days ago in a real git worktree
Seed: production migrate-dev-db command, explicit synthetic source
Copied settings.json: False
Marker before startup: ABSENT
Script: Settle marker | runOnSettle=True
Script: Manual check | runOnSettle=unset
Thread before startup: None

$ start the real server; wait for its automatic startup sweep
Observed: thread=None | settledAt=None | source marker=ABSENT
Observed: thread=settled | settledAt=2026-11-02T20:47:09.378Z | source marker=PRESENT
Marker contents: settle script executed

$ inspect committed settlement event and retained scripts
Settlement event types: [('thread.settled',)]
Final thread: settled; marker: PRESENT
Retained scripts: Settle marker, Manual check
Observation continued for 70 seconds after settlement (includes next sweep).
RESULT: BUG OBSERVED: copied settle script wrote into the source worktree
Server stopped.