Water Reminder Skill - 45-minute Hydration and Movement Reminder

Function Description

Sends hydration and movement reminders every 45 minutes during working hours (8:00-23:00) to help maintain healthy work habits.

Configuration Requirements

1. Heartbeat Interval Configuration

• Requirement: OpenClaw heartbeat interval ≤ 45 minutes
• Current Status: High-frequency tasks execute every 15 minutes (meets requirement)
• Config File: ~/.openclaw/openclaw.json
• If modification needed, inform user of the method:

  # Backup original config
  cp ~/.openclaw/openclaw.json ~/.openclaw/openclaw.json.backup.$(date +%Y%m%d_%H%M%S)
  
  # Modify heartbeat config (add to agents.defaults or specific agent)
  # "heartbeat": {
  #   "every": "45m"
  # }
  

2. State Tracking File

• File Location: /home/${user}/.openclaw/workspace/memory/heartbeat-state.json
• Required Fields:

  {
    "lastWaterReminder": 1772681220,
    "chatId": "SESSION_CHAT_ID"
  }
  

3. User Information File

• File Location: USER.md
• Required Info: Contains user's channel session ID

Execution Logic

Time Check

1. Get current time (Example: GMT+8 timezone) converted to 24-hour format
2. Check if within 8:00-23:00 range
3. If outside working hours, skip reminder

Interval Check

1. Read lastWaterReminder timestamp from memory/heartbeat-state.json
2. Calculate time difference between current time and last reminder
3. If difference ≥ 45 minutes (2700 seconds), execute reminder

Reminder Execution

1. Update lastWaterReminder with current timestamp
2. Save back to memory/heartbeat-state.json
3. Send reminder message via the agent's configured channel to user's session

Reminder Message Content

💧 Time to hydrate!

Remember to:
- Drink a glass of water 🚰
- Get up and move around 🚶‍♂️
- Rest your eyes 👀

Stay healthy for better productivity! 💪

Error Handling

• File not found: Automatically create default state file
• Time format error: Use current time as baseline
• Network issues: Log error but don't interrupt other tasks
• User ID missing: Re-read from USER.md

Use Cases

• Health reminders during extended work sessions
• Preventing prolonged sitting
• Maintaining proper hydration
• Work rhythm regulation

Important Notes

• Reminders only sent during working hours (8:00-23:00 GMT+8)
• Respects user rest time, no notifications at night
• Updates state after each reminder for accurate timing
• Supports manual reset of reminder timer

Maintenance Recommendations

• Regularly check state file integrity
• Adjust reminder frequency based on user feedback
• Monitor reminder effectiveness and optimize user experience