# Redacting Log Processor

## Module
Telemetry

## Status
IMPLEMENTED

## Description
Log processor that redacts sensitive data from telemetry output before export.

## Implementation Details
- **RedactingLogProcessor**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/RedactingLogProcessor.cs` -- OpenTelemetry LogRecordProcessor that redacts sensitive data before export
- **ILogRedactor interface**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/ILogRedactor.cs` -- redaction service interface
- **LogRedactor**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/LogRedactor.cs` -- default implementation with configurable redaction patterns
- **LogRedactionOptions**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/LogRedactionOptions.cs` -- configurable patterns, replacement text, and scope
- **DeterministicLogFormatter**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core/DeterministicLogFormatter.cs` -- deterministic log formatting for reproducibility
- **Tests**: `src/Telemetry/StellaOps.Telemetry.Core/StellaOps.Telemetry.Core.Tests/LogRedactorTests.cs`, `DeterministicLogFormatterTests.cs`
- **Source**: Feature matrix scan

## E2E Test Plan
- [ ] Verify log processor redacts PII patterns (emails, IPs, tokens) before export
- [ ] Test custom redaction patterns are applied via LogRedactionOptions
- [ ] Verify deterministic log formatter produces reproducible output
- [ ] Test redaction preserves log structure and does not corrupt JSON output
- [ ] Verify redaction applies to both log message and log attributes