MCP backend

Use when: Iterative source-of-truth alignment repair, choosing sequential vs parallel correction order, generating fit repair queues, stopping on contradictory templates, or coordinating geometry/UV/lighting fixes from validation reports.

Before the first Blender call, read ../text-to-blender/references/mcp-backends.md. Prefer official MCP for shared capabilities; preserve the selected backend for the whole task. Tool names in recipes are client/legacy examples: map them through that reference and its agent-host guide.

Fit Repair Optimizer

This skill converts validation failures into an executable repair queue. The source templates are the contract; the current model is disposable.

Decision: sequential or parallel?

Use sequential repair when failures are coupled:

1. Canonical view / source conflict unresolved.
2. Front silhouette or part count fails.
3. Geometry dimensions fail before UVs can be trusted.
4. Texture region boundaries depend on geometry changes.
5. Lighting/look depends on final material placement.