git:20260725.8fd3154 to git:20260731.e6fdb20

5 added, 0 removed. Audit A to A.

---

name: blender-asset-validation

description: Inspect and validate Blender assets technically and visually. Use for `.blend`, `.glb`, `.gltf`, `.fbx`, or `.obj` quality checks; topology and export review; evaluated triangle/material/hierarchy metrics; standardized multiview renders; fresh-import verification; or evidence-backed review of an agent-generated mesh.

---

# Blender Asset Validation

Validate both the authored scene and the exported deliverable. A clean export or low triangle count is not proof of visual or functional quality.

## Run deterministic inspection

Prefer the `blender_inspect_asset` MCP tool when available. Otherwise run:

```powershell

$env:BLENDER_EXECUTABLE = "C:\path\to\Blender\blender.exe"

& $env:BLENDER_EXECUTABLE `

--background --factory-startup `

--python "<skill-root>\scripts\inspect_asset.py" -- `

--input "<asset-path>" --output "<output-dir>\metrics.json"

```

Inspect:

- evaluated vertices, edges, polygons, and triangles;

+ - authored versus evaluated geometry density and refinement modifiers;

+ - smooth versus flat-shaded polygon ratios;

+ - UV-bearing meshes, node-based materials, image textures, and authored lights;

- mesh objects, materials, actions, frame ranges, and hierarchy;

- dimensions and world bounds;

- invalid coordinates, degenerate faces, loose elements, boundary and non-manifold edges;

- connected components per mesh;

- non-default transforms and missing material assignments.

Interpret metrics using [references/quality-gates.md](references/quality-gates.md). Do not apply printing-only topology rules to every game asset.

## Render evidence

Prefer `blender_render_evidence`. Otherwise run `scripts/render_evidence.py` with an output directory. Require:

- perspective hero view;

- front, back, left, right, and top views;

- one contact sheet;

- requested animation critical frames when applicable.

Open the hero and contact sheet with an image-viewing tool. Review:

- silhouette and proportions;

- required parts and spatial relations;

- orientation;

- floating or unsupported elements;

- intersections and accidental gaps;

- material readability;

+ - visible faceting, razor edges, blockout residue, and missing or broken

+ textures;

- whether details remain legible at intended scale.

## Verify the exported artifact

1. Export GLB from the authored `.blend`.

2. Start a fresh Blender process.

3. Inspect and render the GLB independently.

4. Compare required names, materials, dimensions, actions, and critical frames with the authored scene.

5. Report authored and re-imported metrics separately.

## Report

Classify each finding as:

- `gate`: invalid or unusable deliverable;

- `defect`: clear request, geometry, presentation, or motion failure;

- `warning`: likely risk requiring review;

- `observation`: neutral measurement;

- `not_applicable`: check intentionally excluded by task semantics.

Include exact evidence paths. Never say an image or video was inspected unless it was actually opened.