Unity Component Skills

BATCH-FIRST: Use *_batch skills when operating on 2+ objects to reduce API calls from N to 1.

Guardrails

Mode: Full-Auto required

DO NOT (common hallucinations):

• component_create / component_get do not exist → use component_add (add) and component_get_properties (read)
• component_find does not exist → use component_list to list components on an object
• componentType is case-sensitive — Rigidbody not rigidbody, BoxCollider not boxcollider
• Custom scripts need exact class name; if namespaced, use Namespace.ClassName

Routing:

• To create a C# component script → use script module's script_create first, then component_add
• To set multiple properties at once → use component_set_property_batch
• To enable/disable a component → component_set_enabled (not component_set_property)

Object Targeting: All single-object skills accept name (string), instanceId (int, preferred), and path (string, hierarchy path). Provide at least one.

Skills Overview

Single Object	Batch Version	Use Batch When
component_add	component_add_batch	Adding to 2+ objects
component_remove	component_remove_batch	Removing from 2+ objects
component_set_property	component_set_property_batch	Setting on 2+ objects

Other Skills (no batch):

• component_list - List all components on an object
• component_get_properties - Get component property values
• component_set_enabled - Enable/disable a component (Behaviour, Renderer, Collider)
• component_copy - Copy a component from one object to another

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Single-Object Skills

component_add

Add a component to a GameObject.

Parameter	Type	Required	Description
name	string	No*	GameObject name
instanceId	int	No*	Instance ID (preferred)
path	string	No*	Hierarchy path
componentType	string	Yes	Component type name

*At least one identifier required

Returns: {success, gameObject, componentType, added}

component_remove

Remove a component from a GameObject.

Parameter	Type	Required	Description
name	string	No*	GameObject name
instanceId	int	No*	Instance ID
componentType	string	Yes	Component type to remove

Returns: {success, gameObject, componentType, removed}

component_list

List all components on a GameObject.

Parameter	Type	Required	Description
name	string	No*	GameObject name
instanceId	int	No*	Instance ID

Returns: {success, gameObject, instanceId, components: [string]}

component_set_property

Set a component property value.

Parameter	Type	Required	Description
name	string	No*	GameObject name
instanceId	int	No*	Instance ID
componentType	string	Yes	Component type
propertyName	string	Yes	Property to set
value	any	Cond.	New value (for basic types, vectors, colors)
referencePath	string	No	Scene object hierarchy path (for scene references)
referenceName	string	No	Scene object name (for scene references)
assetPath	string	No	Project asset path (for asset references: Material, Texture, AudioClip, ScriptableObject, Prefab, etc.)

Provide one of: value (basic types), referencePath/referenceName (scene objects), or assetPath (project assets).

value type examples:

# float / int / bool / string
call_skill("component_set_property", name="Obj", componentType="Rigidbody", propertyName="mass", value=2.5)
call_skill("component_set_property", name="Obj", componentType="Rigidbody", propertyName="useGravity", value=False)

# Vector3 (JSON object with x, y, z)
call_skill("component_set_property", name="Obj", componentType="Transform", propertyName="localPosition",
           value={"x": 1, "y": 2, "z": 3})

# Color (JSON object with r, g, b, a — values 0-1)
call_skill("component_set_property", name="Obj", componentType="Light", propertyName="color",
           value={"r": 1, "g": 0.5, "b": 0, "a": 1})

# Enum (use string name)
call_skill("component_set_property", name="Obj", componentType="Rigidbody", propertyName="interpolation",
           value="Interpolate")

Returns: {success, gameObject, componentType, property, oldValue, newValue}

component_get_properties

Get all properties of a component.

Parameter	Type	Required	Description
name	string	No*	GameObject name
instanceId	int	No*	Instance ID
componentType	string	Yes	Component type

Returns: {success, gameObject, componentType, properties: {name: value}}

---

Batch Skills

component_add_batch

Add components to multiple objects.

Parameter	Type	Required	Default	Description
items	json string	Yes	-	JSON array of per-item objects (see example below)

Returns: {success, totalItems, successCount, failCount, results: [{success, gameObject, componentType, added}]}

unity_skills.call_skill("component_add_batch", items=[
    {"name": "Enemy1", "componentType": "Rigidbody"},
    {"name": "Enemy2", "componentType": "Rigidbody"},
    {"name": "Enemy3", "componentType": "Rigidbody"}
])

component_remove_batch

Remove components from multiple objects.

Parameter	Type	Required	Default	Description
items	json string	Yes	-	JSON array of per-item objects (see example below)

Returns: {success, totalItems, successCount, failCount, results: [{success, gameObject, componentType, removed}]}

unity_skills.call_skill("component_remove_batch", items=[
    {"instanceId": 12345, "componentType": "BoxCollider"},
    {"instanceId": 12346, "componentType": "BoxCollider"}
])

component_set_property_batch

Set properties on multiple objects.

Parameter	Type	Required	Default	Description
items	json string	Yes	-	JSON array of per-item objects (see example below)

Returns: {success, totalItems, successCount, failCount, results: [{success, gameObject, componentType, property, oldValue, newValue}]}

unity_skills.call_skill("component_set_property_batch", items=[
    {"name": "Enemy1", "componentType": "Rigidbody", "propertyName": "mass", "value": 2.0},
    {"name": "Enemy2", "componentType": "Rigidbody", "propertyName": "mass", "value": 2.0}
])

---

Common Component Types

Physics

Type	Description
Rigidbody	Physics simulation
BoxCollider	Box collision
SphereCollider	Sphere collision
CapsuleCollider	Capsule collision
MeshCollider	Mesh-based collision
CharacterController	Character movement

Rendering

Type	Description
MeshRenderer	Render meshes
SkinnedMeshRenderer	Animated meshes
SpriteRenderer	2D sprites
LineRenderer	Draw lines
TrailRenderer	Motion trails

Audio

Type	Description
AudioSource	Play sounds
AudioListener	Receive audio

UI

Type	Description
Canvas	UI container
Image	UI images
Text	UI text (legacy)
Button	Clickable button

---

Example: Efficient Physics Setup

import unity_skills

# BAD: 6 API calls
unity_skills.call_skill("component_add", name="Box1", componentType="Rigidbody")
unity_skills.call_skill("component_add", name="Box2", componentType="Rigidbody")
unity_skills.call_skill("component_add", name="Box3", componentType="Rigidbody")
unity_skills.call_skill("component_set_property", name="Box1", componentType="Rigidbody", propertyName="mass", value=2.0)
unity_skills.call_skill("component_set_property", name="Box2", componentType="Rigidbody", propertyName="mass", value=2.0)
unity_skills.call_skill("component_set_property", name="Box3", componentType="Rigidbody", propertyName="mass", value=2.0)

# GOOD: 2 API calls
unity_skills.call_skill("component_add_batch", items=[
    {"name": "Box1", "componentType": "Rigidbody"},
    {"name": "Box2", "componentType": "Rigidbody"},
    {"name": "Box3", "componentType": "Rigidbody"}
])
unity_skills.call_skill("component_set_property_batch", items=[
    {"name": "Box1", "componentType": "Rigidbody", "propertyName": "mass", "value": 2.0},
    {"name": "Box2", "componentType": "Rigidbody", "propertyName": "mass", "value": 2.0},
    {"name": "Box3", "componentType": "Rigidbody", "propertyName": "mass", "value": 2.0}
])

Best Practices

1. Add colliders before Rigidbody for physics
2. Use component_list to verify additions
3. Check property names with component_get_properties first
4. Some properties are read-only (will fail to set)
5. Use full type names for custom scripts (e.g., "MyNamespace.MyScript")

---

Additional Skills

component_copy

Copy a component from one GameObject to another.

Parameter	Type	Required	Default	Description
sourceName	string	No*	null	Source GameObject name
sourceInstanceId	int	No*	0	Source Instance ID
sourcePath	string	No*	null	Source hierarchy path
targetName	string	No*	null	Target GameObject name
targetInstanceId	int	No*	0	Target Instance ID
targetPath	string	No*	null	Target hierarchy path
componentType	string	Yes	-	Component type to copy

*At least one source identifier and one target identifier required

Returns: { success, source, target, componentType }

component_set_enabled

Enable or disable a component (Behaviour, Renderer, Collider, etc.).

Parameter	Type	Required	Default	Description
name	string	No*	null	GameObject name
instanceId	int	No*	0	Instance ID
path	string	No*	null	Hierarchy path
componentType	string	Yes	-	Component type to enable/disable
enabled	bool	No	true	Whether to enable or disable

*At least one identifier required

Returns: { success, gameObject, componentType, enabled }

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Exact Signatures

Exact names, parameters, defaults, and returns are defined by GET /skills/schema or unity_skills.get_skill_schema(), not by this file.