Task Watchdog

Monitors subagent failures, exec errors, and stale tasks, auto-notifying sessions on abnormal events and periodically checking task health.

OpenClaw plugin that auto-notifies on subagent failures, exec errors, and stale tasks.

Hooks

• subagent_ended: Detects abnormal outcomes (error/timeout/killed/reset/deleted) and notifies parent session
• after_tool_call (exec): Watches for abnormal exec exits (non-zero, OOM, signals)
• heartbeat_prompt_contribution: Injects stale-task patrol instructions into heartbeat cycles
• gateway_start: Timer-based patrol that periodically triggers heartbeat checks

Install

openclaw plugin install openclaw-task-watchdog

Config

All optional — works with defaults:

{
  "task-watchdog": {
    "subagentNotifyOn": ["error", "timeout", "killed"],
    "execNotifyOnAbnormal": true,
    "timerPatrol": true,
    "timerPatrolIntervalMs": 120000,
    "staleThresholdMs": 1800000
  }
}