Unity Physics Skills

Editor-time physics queries (raycast, sphere and box casts, overlap), gravity, PhysicMaterial assets and the layer collision matrix. Parameters come from the schema (GET /skills/schema?names=<skill>&wire=v2); execution and dryRun rules: root SKILL.md.

When to use

• Casting rays or shapes
• Testing overlaps
• Querying colliders
• Adjusting gravity or physics settings

Rules

• Each query is a single-frame check on the editor thread. Simulation (integration, collision response) advances only in Play Mode; these skills never start a simulation.
• Raycast and cast results use world-space coordinates.
• layerMask on queries is a bit mask (bit n = layer n; for example 256 = layer 8 only), not a layer index. -1 means all layers.
• layer1 and layer2 on the layer-collision skills are indices 0-31. A name from layer1Name / layer2Name overrides the index on the same side.
• Adding physics components belongs to the component module (component_add with Rigidbody, BoxCollider, etc.).