# Panel System — Inspector Tabs

When the Panel System module is opened in the inspector (via `__fvcmsOpenInspector('system.panel-system')`), it shows 4 tabs:

## Tab 1: Panels
List of every panel in the current workspace. For each panel:
- id, type, state, dockEdge, size, tabs
- Focus button, minimize button (greyed if Pro Mode), destroy button
- Live state updates

## Tab 2: Trace
Recent events emitted by the Panel System. Last 100 events. Filter by event type. Export as JSON.

## Tab 3: Rules
The pact rules for this module (F-Panel-*, I-Panel-*, F-Pro-Lock-001, etc.). Read-only display.

## Tab 4: Drift
Live drift-check results. Verifies:
- 15 invariants from §9
- No panel is in an invalid state
- No panel exceeds viewport bounds
- No panel is overlapping another docked panel
- Pill state matches panel state
- Pro Mode lock is enforced