Core Concepts

Project / Workspace

A project is one website/app you scan. Slack is connected at workspace level, then channels subscribe per project.

Baseline is your approved reference image. Current is the new screenshot from this run.

Each action execution creates one run (scan) and keeps status like queued, running, completed, failed.

You can promote a completed run to baseline using the baseline approval endpoint or Slack action button.

On pull requests, the action can post/update one ScanU bot comment and fail the job on differences.

Public API applies rate limits (100 requests/minute). Large matrices increase run time because each browser/device combo generates more screenshots.