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docs/features/checked/scanner/reachability-mini-map-visualization-api.md

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+# Reachability Mini-Map Visualization API
+
+## Module
+Scanner
+
+## Status
+VERIFIED
+
+## Description
+Extracts a compact mini-map from full reachability graphs, providing a simplified topological view (MiniMapNode, MiniMapPath models) for quick visual orientation. Distinct from existing "Reachability Subgraph Extraction" which is about proof-of-exposure, not UI visualization.
+
+## Implementation Details
+- **Mini-Map Extractor**:
+  - `src/Scanner/__Libraries/StellaOps.Scanner.Reachability/MiniMap/MiniMapExtractor.cs` - `MiniMapExtractor` extracts compact mini-map representations from full reachability graphs for quick visual orientation
+  - `src/Scanner/__Libraries/StellaOps.Scanner.Reachability/MiniMap/ReachabilityMiniMap.cs` - `ReachabilityMiniMap` model containing `MiniMapNode` and `MiniMapPath` structures for simplified topological views
+
+## E2E Test Plan
+- [ ] Generate a mini-map from a reachability graph and verify it contains simplified nodes and paths
+- [ ] Verify the mini-map correctly preserves the topological structure (entrypoints, intermediate hops, vulnerable sinks)
+- [ ] Verify the mini-map node count is significantly smaller than the full reachability graph
+- [ ] Verify mini-map paths include key metadata (gate types, confidence levels) for each path segment
+- [ ] Verify the API returns the mini-map in a format suitable for UI rendering (JSON with coordinates/layout hints)
+
+---
+
+## Verification
+
+| Check | Result |
+|-------|--------|
+| Tier 0 - Source files exist | PASS |
+| Tier 1 - Build + code review | PASS |
+| Tier 2 - Integration tests | PASS |
+| Verified | 2026-02-13T18:10:00Z |