unity-probuilder

Installation
SKILL.md

Unity ProBuilder Skills

Use this module for editable ProBuilder meshes, not regular primitive GameObjects. It is best for blockout, level geometry, and procedural mesh refinement.

Requires: com.unity.probuilder package. Batch-first: For scene blockout or level generation, prefer probuilder_create_batch when creating 2+ shapes.

Guardrails

Mode: Full-Auto required

DO NOT (common hallucinations):

  • probuilder_create_mesh does not exist -> use probuilder_create_shape
  • probuilder_edit_face does not exist -> use the specific face skills such as probuilder_extrude_faces, probuilder_delete_faces, probuilder_merge_faces
  • probuilder_set_material and probuilder_set_face_material are different -> whole object vs selected faces
  • Regular meshes do not become ProBuilder meshes automatically
  • Mesh rebuild calls (ToMesh() + Refresh()) are already handled by the skills. Do not invent a manual rebuild step

Routing:

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Mar 16, 2026