diff_tasks
Retrieve all task changes since a timestamp, grouped by list as completed, active, or deleted. Captures hidden completions from Google Tasks apps across all lists or a specific one.
Instructions
Harvest every change since a timestamp: returns tasks updated after since, grouped per list into completed / active / deleted. Queries with showCompleted+showHidden+showDeleted so completions made in the Google Tasks apps (which become hidden) are not missed. Omit tasklist to sweep every list. The API has no sync tokens; keep your own snapshot and pass its timestamp as since.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| since | Yes | RFC3339 timestamp, e.g. 2026-07-20T00:00:00.000Z | |
| tasklist | No | Limit to one task list id (default: all lists) |