# Signals & Runtime Dashboard

## Module
Web

## Status
IMPLEMENTED

## Description
eBPF/ETW/dyld probe status monitoring, signal collection metrics, anomaly alerts, host coverage map, and real-time event stream. API client and models exist but dedicated feature UI module not found as standalone directory.

## What's Implemented
- **Existing components**:
  - `extension-slot` (`src/Web/StellaOps.Web/src/app/core/plugins/extension-slots/extension-slot.component.ts`)
- **Existing services**:
  - `evidence-panel-metrics` (`src/Web/StellaOps.Web/src/app/core/analytics/evidence-panel-metrics.service.ts`)
  - `gateway-metrics` (`src/Web/StellaOps.Web/src/app/core/api/gateway-metrics.service.ts`)
  - `policy-interop` (`src/Web/StellaOps.Web/src/app/core/api/policy-interop.service.ts`)
  - `reachability-integration` (`src/Web/StellaOps.Web/src/app/core/api/reachability-integration.service.ts`)
  - `vuln-export-orchestrator` (`src/Web/StellaOps.Web/src/app/core/api/vuln-export-orchestrator.service.ts`)

## What's Missing
- **Signals dashboard feature module**: No `src/Web/StellaOps.Web/src/app/features/signals/` directory with dedicated dashboard components
- **Probe status monitoring**: No component showing eBPF/ETW/dyld probe health status per host
- **Signal collection metrics**: No real-time metrics showing signals collected per second, error rates, latency
- **Anomaly alerts panel**: No panel displaying detected anomalies from signal data
- **Host coverage map**: No visualization showing which hosts have active runtime probes
- **Real-time event stream**: No WebSocket/SSE-based live event feed component

## Implementation Plan
- Create `features/signals/` module with route registration
- Build probe status monitoring dashboard showing per-host probe health
- Add signal collection metrics widget with real-time updates
- Build anomaly alerts panel consuming anomaly events from Signals backend
- Create host coverage map visualization
- Add WebSocket/SSE integration for real-time event streaming

## E2E Test Plan
- **Setup**:
  - [ ] Log in with a user that has appropriate permissions
  - [ ] Navigate to the relevant page/section where this feature appears
  - [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
- **Core verification**:
  - [ ] Verify the dashboard loads without errors and displays summary cards/metrics
  - [ ] Verify data refreshes correctly and loading states are shown
  - [ ] Verify empty state is displayed when no data is available
- **Edge cases**:
  - [ ] Verify graceful handling when backend API is unavailable (error state)
  - [ ] Verify responsive layout at different viewport sizes
  - [ ] Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)