# Offline Kit Metrics and Diagnostics

## Module
AirGap

## Status
IMPLEMENTED

## Description
Offline kit metrics, telemetry, and startup diagnostics for monitoring air-gap bundle health.

## Implementation Details
- **Telemetry**: `src/AirGap/StellaOps.AirGap.Controller/Services/AirGapTelemetry.cs` -- air-gap specific telemetry
- **Telemetry options**: `src/AirGap/StellaOps.AirGap.Controller/Options/AirGapTelemetryOptions.cs` -- telemetry configuration
- **Startup diagnostics**: `src/AirGap/StellaOps.AirGap.Controller/Services/AirGapStartupDiagnosticsHostedService.cs` -- diagnostics at startup
- **Importer telemetry**: `src/AirGap/StellaOps.AirGap.Importer/Telemetry/` -- import-specific metrics
- **Status endpoints**: `src/AirGap/StellaOps.AirGap.Controller/Endpoints/Contracts/AirGapStatusResponse.cs` -- status reporting
- **Source**: Feature matrix scan

## E2E Test Plan
- [ ] Verify AirGap status endpoint returns correct metrics
- [ ] Test startup diagnostics detect and report issues
- [ ] Verify telemetry captures bundle import/export operations
- [ ] Test importer telemetry tracks import duration and outcomes