# Automated Drift Remediation Engine

## Module
ReleaseOrchestrator

## Status
VERIFIED

## Description
Automated drift remediation engine with severity scoring, rate limiting, circuit breaker patterns, and reconciliation scheduling that can automatically apply fixes for configuration drift detected between environments.

## Implementation Details
- **Modules**: `src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Environment/Inventory/Remediation/`
- **Key Classes**:
  - `RemediationEngine` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Environment/Inventory/Remediation/RemediationEngine.cs`) - automated drift remediation with severity scoring and circuit breaker patterns
  - `DriftDetector` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Environment/Inventory/DriftDetector.cs`) - detects configuration drift between expected and actual state
  - `InventorySyncService` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Environment/Inventory/InventorySyncService.cs`) - synchronizes inventory state with target environments
- **Interfaces**: `IDriftDetector`, `IInventorySyncService`
- **Source**: SPRINT_20260117_031

## E2E Test Plan
- [ ] Detect a configuration drift and verify `RemediationEngine` generates a remediation plan with severity scores
- [ ] Verify auto-fix: apply the remediation plan and confirm the drift is resolved
- [ ] Verify rate limiting: trigger multiple remediations in rapid succession and confirm rate limiting kicks in
- [ ] Verify circuit breaker: simulate repeated remediation failures and confirm the circuit breaker opens
- [ ] Verify reconciliation scheduling: configure a schedule and confirm drift checks run automatically


## Verification
- **Verified**: 2026-02-13T21:00:00Z
- **Method**: Tier 2d integration tests
- **Result**: PASS