Debug Mode

Debug mode helps you inspect an app without guessing where the state, route, action, or API problem started.

zz dev --debug

What it shows

Panel	Purpose
Current route	Shows the active route.
Registered pages	Lists known routes.
State tree	Shows current app state.
Action log	Shows recent actions.
API log	Shows request status and history.
Last error	Shows the most recent runtime error.

When to use it

Use debug mode when click handlers do nothing, route rendering fails, state does not update, API calls fail, or a template behaves differently than expected.