save checkpoint: save features

docs/features/checked/mirror/mirror-creator.md

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+# Mirror Creator
+
+## Module
+Mirror
+
+## Status
+VERIFIED
+
+## Description
+Mirror Creator provides deterministic mirror planning primitives in `src/Mirror/`, including source registration, stable plan generation, and incremental cursor progression. The module currently exposes a core library/test surface rather than a full networked mirror runtime.
+
+## What's Implemented
+- **Core service contract**: `src/Mirror/StellaOps.Mirror.Creator/IMirrorCreatorService.cs` defines source upsert/listing, deterministic plan creation, and sync-result recording operations.
+- **Deterministic planning service**: `src/Mirror/StellaOps.Mirror.Creator/InMemoryMirrorCreatorService.cs` implements normalized IDs, sorted source ordering, stable plan hashing, deterministic output path formatting, and incremental cursor state transitions.
+- **Models and options**: `src/Mirror/StellaOps.Mirror.Creator/MirrorModels.cs` and `src/Mirror/StellaOps.Mirror.Creator/MirrorCreatorOptions.cs` define content kinds, sync modes, plan/result records, and formatting helpers.
+- **DI registration**: `src/Mirror/StellaOps.Mirror.Creator/MirrorServiceCollectionExtensions.cs` wires service registration for consumers.
+- **Behavioral tests**: `src/Mirror/__Tests/StellaOps.Mirror.Creator.Core.Tests/MirrorCreatorServiceTests.cs` verifies deterministic plan IDs/order, incremental mode transition, DI registration, and unknown-plan rejection semantics.
+
+## What's Missing
+- **Standalone Mirror API/runtime**: No dedicated HTTP service endpoints for mirror source management or plan execution in `src/Mirror/`.
+- **Execution telemetry and progress tracking**: No persisted job/status tracking for active mirror operations beyond in-memory cursor recording.
+- **Attestation/export orchestration**: No mirror-specific attestation emission pipeline in this module; broader offline/export capabilities remain primarily under `src/AirGap/`.
+
+## Related Documentation
+- AirGap module (broader offline mirroring scope): `src/AirGap/`
+- Golden Pairs mirror pattern reference: `src/Tools/GoldenPairs/Services/PackageMirrorService.cs`
+
+## Verification
+- Verified on 2026-02-11 via FLOW Tier 0/1/2 loop.
+- Tier 0 source check: `docs/qa/feature-checks/runs/mirror/mirror-creator/run-002/tier0-source-check.json` (`partial` due stale legacy path in feature text; core Mirror paths verified).
+- Tier 1 build + tests: `docs/qa/feature-checks/runs/mirror/mirror-creator/run-002/tier1-build-check.json` (build pass, tests 4/4).
+- Tier 2 behavioral integration: `docs/qa/feature-checks/runs/mirror/mirror-creator/run-002/tier2-integration-check.json` (tests 4/4, including positive and negative semantics).
+- Failure loop closure: initial run-001 failed due command-capture environment handling and was triaged/confirmed before retest pass (`run-001/triage.json`, `run-001/confirmation.json`, `run-002/retest-result.json`).