{"file": ".trellis/spec/blender/index.md", "reason": "Blender layer routing, runtime boundaries, and stage marker constraints for material export changes."}
{"file": ".trellis/spec/blender/module-structure.md", "reason": "Defines catalog/materials/export_cesium ownership and the current material-name string coupling to replace."}
{"file": ".trellis/spec/blender/asset-generation.md", "reason": "Documents material construction, Cesium export behavior, foliage special cases, and parity-sensitive generation rules."}
{"file": ".trellis/spec/guides/artifact-parity-guide.md", "reason": "Required validation guidance for pure refactor changes to .blend/.glb outputs."}
{"file": ".trellis/spec/guides/cross-layer-thinking-guide.md", "reason": "Covers material-name cross-layer coupling and checks for Blender-to-Cesium data contracts."}