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memory/projects/discord-reminder-system.md

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+# Discord Reminder System
+
+**Status:** ✅ Live  
+**Channel:** #schedule (1474636036905631867)  
+**Created:** 2026-02-25  
+**Files:**
+- `tools/reminder-manager.py` - Core Python logic
+- `tools/reminder-handler.ps1` - PowerShell wrapper
+- `skills/discord-reminder/SKILL.md` - Documentation
+- `data/reminders.db` - SQLite database
+
+## How It Works
+
+1. User says: `remind me 20m Call John`
+2. I parse natural language time (20m, 2h, tomorrow 9am, etc.)
+3. Create OpenClaw cron job for exact time
+4. At trigger time, cron fires → sends Discord message
+5. One-shot jobs auto-delete after firing
+
+## Supported Time Formats
+
+| Format | Example |
+|--------|---------|
+| Minutes | `20m`, `5m` |
+| Hours | `2h`, `1h30m` |
+| Today time | `9am`, `2:30pm`, `15:00` |
+| Tomorrow | `tomorrow`, `tomorrow 9am` |
+
+## Commands
+
+- `remind me [time] [message]` - Add reminder
+- `list reminders` - Show active reminders
+- `cancel reminder #[id]` - Cancel by ID
+
+## Technical Details
+
+- **Backend:** OpenClaw cron + SQLite
+- **Delivery:** systemEvent → Discord channel
+- **Timezone:** America/Chicago (automatic DST handling)
+- **Cleanup:** Old reminders auto-delete via Daily Cron Cleanup job
+
+## Testing History
+
+- ✅ 2026-02-25 - Basic 5m reminders working
+- ✅ 2026-02-25 - 3pm same-day reminders working
+- ✅ 2026-02-27 - Confirmed still working after 2 days
+
+## Known Quirks
+
+- Must say "remind me" — "remind 4 minutes" won't work (by design)
+- One-shot reminders don't show in `list` after firing (auto-deleted)
+- All times are America/Chicago
+
+## Future Ideas
+
+- [ ] Recurring reminders (daily, weekly)
+- [ ] Snooze functionality
+- [ ] Reminder categories/tags
+- [ ] DM reminders (vs channel-only)