unity-prefab

Unity Prefab Skills

Overview

BATCH-FIRST: Use prefab_instantiate_batch when spawning 2+ prefab instances.

Common Mistakes

DO NOT (common hallucinations):

• prefab_create_from_object does not exist → use prefab_create (takes scene object name/instanceId and savePath)
• prefab_spawn does not exist → use prefab_instantiate
• prefab_edit / prefab_modify do not exist → use prefab_set_property (edit prefab asset directly) or instantiate, modify, then prefab_apply
• prefab_save does not exist → use prefab_apply (applies instance changes to source prefab)

Routing:

• To modify components on a prefab instance in scene → use component module skills, then prefab_apply
• To set a property directly on the prefab asset → prefab_set_property (this module)
• To find all instances of a prefab → prefab_find_instances (this module)

Skills Overview

Single Object	Batch Version	Use Batch When
prefab_instantiate	prefab_instantiate_batch	Spawning 2+ instances

No batch needed:

• prefab_create - Create prefab from scene object
• prefab_apply - Apply instance changes to prefab
• prefab_unpack - Unpack prefab instance
• prefab_get_overrides - Get instance overrides
• prefab_revert_overrides - Revert to prefab values
• prefab_apply_overrides - Apply overrides to prefab
• prefab_create_variant - Create a prefab variant
• prefab_find_instances - Find all instances of a prefab in scene
• prefab_set_property - Set a property on a component inside a Prefab asset (supports basic types, vectors, colors, and asset references)

---

Skills

prefab_create

Create a prefab from a scene GameObject.

Parameter	Type	Required	Description
name	string	No*	Source object name
instanceId	int	No*	Instance ID
path	string	No*	Object path
savePath	string	Yes	Prefab save path