Privacy Policy
Last updated: April 2026
1. Overview
Yu-Jin is a Discord bot. This policy explains what data is collected, how it is used, and your rights regarding that data.
2. Data Collected
Yu-Jin stores the following data in a configuration file (guild-config.json) on the server host:
| Data | Why it's stored |
|---|---|
| Discord guild (server) ID | Identifies which server a config belongs to |
| Discord user IDs | Used for mention settings, favor ledger entries, and absence watches |
| Voice join timestamps | Used for absence detection (when a user last joined a voice channel) |
| Favor records | Stores the from-user, to-user, reason, timestamp, and settled status of each favor |
| Absence watch settings | Stores the threshold (days) and last-alerted timestamp per watched user |
| Quest records | Stores the name, description, status, creator user ID, and timestamps of each quest |
Yu-Jin does not collect:
- Message content
- Real names or email addresses
- Any data beyond what is listed above
3. How Data Is Used
All collected data is used solely to operate the bot's features within your Discord server. Data is not sold, shared, or transmitted to any third parties.
4. Data Storage
Data is stored in a plain JSON file on the server hosting the bot. It is not stored in any cloud database or third-party service controlled by the bot developers.
5. Data Retention
Data persists until it is manually deleted from the configuration file or the bot is removed from the server. There is no automated data deletion.
6. Your Rights
If you are a member of a server running Yu-Jin and would like your data removed (e.g., favor records, absence watch entries), contact your server administrator. Server administrators can edit or delete configuration data directly.
7. Changes to This Policy
This policy may be updated at any time. The "last updated" date at the top of this page reflects the most recent revision.
8. Contact
For questions about this policy, open an issue on the GitHub repository or contact the bot's operator directly.