Each tool maps to a distinct lifecycle action, but report_progress (heartbeat) and save_checkpoint (durable state) are close enough that an agent could misuse one for the other; the descriptions do clarify the difference. register_task vs report_interruption vs mark_completed are clearly separated by intent.

All seven tools follow a strict snake_case verb_noun pattern (register_task, report_progress, save_checkpoint, report_interruption, get_task_status, mark_completed, cancel_task). No deviations or mixed conventions.

Seven tools cleanly covers the register→progress→checkpoint→recover→complete/cancel lifecycle without redundancy. Each tool earns its place in the watchdog workflow.

Core task lifecycle is fully covered, including recovery and terminal states. Minor gap: no way to enumerate or query multiple tasks (no list_tasks) and no explicit manual recovery trigger, though the watchdog handles recovery automatically.