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docs/features/checked/releaseorchestrator/automated-drift-remediation-engine.md

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+# 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