Sentinel Lite - Project Issue Scanner & Asset Cleanup

Sentinel Lite is a free Unity Editor extension for project auditing and asset cleanup. It scans your scenes and prefabs — including closed scenes, without ever opening them — for the three most critical, build-breaking issues, and previews every unused asset in your project so you can see exactly what's safe to delete. It's a focused, free slice of Sentinel, built to catch the problems most likely to break a build or bloat a project. Online Documentation | Full Sentinel 🔍 Core Features 🔹 Issues Finder A scene validator and prefab auditor that scans both open and closed scenes (closed scenes are read as YAML, with no scene loading) for the three most critical, build-breaking issue types: missing scripts, broken references, and null materials. Filter by severity or issue type, sort any column, and click any result to ping it, open it, or copy its path. 🗑️ Project Cleaner (Preview) A dead-file finder powered by a root-tracing dependency scanner. It flags assets that are truly unreferenced — not just "not in a scene," but unreachable from every build scene, Resources folder, Addressables group, and asset bundle. Lite shows you the complete list grouped by folder, with file sizes, total reclaimable space, and empty folders — a read-only preview so you can see exactly what's safe to remove. Comparison ✅ Free — Included in this Package Scene & Prefab Auditing — Scan open and closed scenes for missing scripts, broken references, and null materials. Deep Scanning — Closed scenes are read as YAML without needing to be opened, ensuring a fast, non-disruptive workflow. Issue Navigation — Filter by severity, sort columns, and click to ping, open, or copy asset paths. Project Cleaner (Preview) — Root-tracing dependency scan flags unreferenced assets, showing file sizes and reclaimable space. Out of the Box — Online documentation, editor-only assembly, zero runtime footprint, and full C# source included. 🔒 Paid / Full Version Only Advanced Detectors — Shader errors, invalid layers/tags, empty events, unused components, and duplicate names. One-Click Repair — Automated auto-fixes for detected issues with full Unity Undo support. Active Cleanup — Delete unused assets with a reversible "Trash" system and automatic backup ZIPs. Usage Tracking — Full References Finder ("where is this asset used?") and 0–100 Project Health Scores. DevOps & CI/CD — Build validation, regression tracking, JSON/JUnit reports, and Slack/Discord notifications. 📧 Support & Questions For any questions, bug reports, or feature requests, reach out at ragendom@gmail.com. We typically respond within 24–48 hours. 🧩 Practical Notes - Zero Runtime Footprint — Editor-only assembly. Nothing is added to your player builds. - Compatibility — Compatible with Unity 2021.3 LTS through Unity 6. - No Dependencies — No external dependencies required.