# Time-to-Evidence (TTE) Metric

## Status
PARTIALLY_IMPLEMENTED

## Description
The TTE metric (measuring time from finding open to first proof rendered) is not implemented in the frontend or backend.

## Module
Telemetry

## What's Implemented
- **TTE metrics collection**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/TimeToEvidenceMetrics.cs`
- **Percentile exporter**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/TtePercentileExporter.cs` (P50/P90/P99)
- **Scan completion integration**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/ScanCompletionMetricsIntegration.cs`
- **Attestation metrics**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/Metrics/AttestationMetrics.cs`
- **DI registration**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/TelemetryServiceCollectionExtensions.cs`
- **Baseline tracking**: `src/__Tests/__Benchmarks/baselines/ttfs-baseline.json`

## What's Missing
- Frontend visualization of TTE metrics (dashboard/chart in Web UI)
- TTE trend visualization over time
- Per-finding TTE breakdown in the UI

## Implementation Plan
- Add TTE dashboard widget to Web UI
- Show TTE percentile trends over time
- Include TTE metric in finding detail view

## Source
- Feature matrix scan