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opencode/packages/opencode/AGENTS.md
Dax Raad a48a5a3462 core: migrate from custom JSON storage to standard Drizzle migrations to improve database reliability and performance 
This replaces the previous manual JSON file system with standard Drizzle migrations, enabling:
- Proper database schema migrations with timestamp-based versioning
- Batched migration for faster migration of large datasets
- Better data integrity with proper table schemas instead of JSON blobs
- Easier database upgrades and rollback capabilities

Migration changes:
- Todo table now uses individual columns with composite PK instead of JSON blob
- Share table removes unused download share data
- Session diff table moved from database table to file storage
- All migrations now use proper Drizzle format with per-folder layout

Users will see a one-time migration on next run that migrates existing JSON data to the new SQLite database.
2026-01-27 12:36:05 -05:00

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opencode database guide

Database

  • Schema: Drizzle schema lives in src/**/*.sql.ts.
  • Naming: tables and columns use snake*case; join columns are <entity>_id; indexes are <table>*<column>\_idx.
  • Migrations: generated by Drizzle Kit using drizzle.config.ts (schema: ./src/**/*.sql.ts, output: ./migration).
  • Command: bun run db generate --name <slug>.
  • Output: creates migration/<timestamp>_<slug>/migration.sql and snapshot.json.
  • Tests: migration tests should read the per-folder layout (no _journal.json).