SENTINEL
constSENTINEL:"SHEPHERD_KEY_OK_8F3A"="SHEPHERD_KEY_OK_8F3A"
Defined in: src/verify-key.ts:18
Token the verify agent must write to VERIFY_FILE. Distinctive + unlikely
to appear in benign pane chatter — so its presence in the file is unambiguous proof
the spawned claude completed a real authenticated turn end-to-end.