unity-component

Use component_add with the target object identified by name, instanceId, or hierarchy path, plus the componentType such as Rigidbody or BoxCollider. For multiple objects, component_add_batch performs all additions in one API call.

Use component_set_property with the componentType, the C# property name such as mass, and a value. Vectors and colors are passed as comma-separated strings, enums by member name, and asset or scene references via assetPath, referencePath, or referenceName.

The m_-prefixed names are Unity serialized backing fields, not C# API names. component_set_property expects names like isKinematic, while m_-prefixed paths only work with component_set_serialized_property, which takes the propertyPath verbatim.

Yes, componentType is case-sensitive, so Rigidbody works but rigidbody fails. Custom scripts require the exact class name, and namespaced scripts need the full form such as MyNamespace.MyScript.

Use the batch variants whenever operating on two or more objects, since they reduce N API calls to one. component_add_batch, component_remove_batch, and component_set_property_batch each accept a JSON array of per-item objects and return per-item results.

component_remove and component_remove_batch are flagged NeverInSemi because they perform deletions, so they are blocked in Approval and Auto modes. They only execute in Bypass mode or when the call matches an allowlist entry.