---
description: Enforces the understanding that Convex automatically handles system fields (_id, _creationTime) and that manual index creation for these fields is unnecessary.
globs: **/convex/schema.ts
---
- Understand that Convex automatically generates system fields `_id` and `_creationTime` for every document.
- Do not manually add indices for `_id` and `_creationTime` as they are added automatically.