unity-animator

name

unity-animator

description

Edit Unity Animator Controllers and control runtime parameters — manage states, transitions, layers, and parameters (float/int/bool/trigger). Use when setting up or wiring an Animator, adjusting animation state machines, or driving animation parameters at runtime, even if the user just mentions "动画" or "状态机". 编辑 Unity Animator Controller 并控制运行时参数(状态、过渡、层、参数 float/int/bool/trigger);当用户要搭建或连接 Animator、调整动画状态机、或在运行时驱动动画参数时使用。

Unity Animator Skills

Control Unity's Mecanim system — create Animator Controllers, add layers' states / transitions / parameters, assign controllers to GameObjects, set parameters at runtime, and play states.

Operating Mode

• Approval：查询类 skill（animator_get_parameters / animator_get_info / animator_list_states，源码标 SkillMode.SemiAuto）直接执行；其余变更类（create_controller / add_parameter / set_parameter / play / assign_controller / add_state / add_transition，标 SkillMode.FullAuto）需用户 grant，grant 后服务端一步执行返结果。
• Auto / Bypass：所有 skill 直接执行；Auto 走 AI 自我评估，Bypass 全放行。
• 本模块不含 Delete / PlayMode / Reload / 高危 skill，无 Bypass-only 拦截项。
• animator_set_parameter / animator_play 作用于场景中已挂 Animator 的 GameObject；如果当前不在 Play mode，状态机只在 Editor 预览模式推进，效果与 runtime 不完全等价。

DO NOT (common hallucinations):

• animator_create_clip / animator_add_clip do not exist → AnimationClips are created via Unity Editor or asset import
• animator_set_speed does not exist → use component_set_property on Animator component with propertyName="speed"

Routing:

• For Timeline animation → use timeline module
• For component properties on Animator → use component module
• For animation import settings → use importer module

Skills Overview

Skill	Description
animator_create_controller	Create new Animator Controller
animator_add_parameter	Add parameter to controller
animator_get_parameters	List all parameters
animator_set_parameter	Set parameter value at runtime
animator_play	Play animation state
animator_get_info	Get Animator component info
animator_assign_controller	Assign controller to GameObject
animator_list_states	List states in controller
animator_add_state	Add a state to a controller layer
animator_add_transition	Add a transition between two states

---

Parameter Types

Type	Description	Example Use
float	Decimal value	Speed, blend weights
int	Integer value	State index
bool	True/false	IsGrounded, IsRunning
trigger	One-shot signal	Jump, Attack

---

Skills

animator_create_controller

Create a new Animator Controller.

Parameter	Type	Required	Default	Description
name	string	Yes	-	Controller name
folder	string	No	"Assets/Animations"	Save folder

Returns: {success, name, path}

animator_add_parameter

Add a parameter to a controller.

Parameter	Type	Required	Default	Description
controllerPath	string	Yes	-	Controller asset path
paramName	string	Yes	-	Parameter name
paramType	string	Yes	-	float/int/bool/trigger
defaultFloat	float	No	0	Initial float value
defaultInt	int	No	0	Initial int value
defaultBool	bool	No	false	Initial bool value

animator_get_parameters

Get all parameters from a controller.

Parameter	Type	Required	Description
controllerPath	string	Yes	Controller asset path

Returns: {controller, parameters: [{name, type, defaultFloat, defaultInt, defaultBool}]}

animator_set_parameter

Set a parameter value at runtime (supports name/instanceId/path).

Parameter	Type	Required	Description
name	string	No*	GameObject name
instanceId	int	No*	GameObject instance ID
path	string	No*	GameObject hierarchy path
paramName	string	Yes	Parameter name
paramType	string	Yes	float/int/bool/trigger
floatValue	float	No*	Float value
intValue	int	No*	Integer value
boolValue	bool	No*	Boolean value

*At least one identifier required. Use the appropriate value for paramType (trigger doesn't need a value).

animator_play

Play a specific animation state (supports name/instanceId/path).

Parameter	Type	Required	Default	Description
name	string	No*	-	GameObject name
instanceId	int	No*	0	GameObject instance ID
path	string	No*	null	GameObject hierarchy path
stateName	string	Yes	-	Animation state name
layer	int	No	0	Animator layer
normalizedTime	float	No	0	Start time (0-1)

*At least one identifier required.

animator_get_info

Get Animator component information (supports name/instanceId/path).

Parameter	Type	Required	Default	Description
name	string	No	null	GameObject name
instanceId	int	No	0	GameObject instance ID
path	string	No	null	GameObject hierarchy path

Returns: {gameObject, instanceId, hasController, controllerPath, speed, applyRootMotion, updateMode, cullingMode, layerCount, parameterCount}

animator_assign_controller

Assign a controller to a GameObject (supports name/instanceId/path).

Parameter	Type	Required	Description
name	string	No*	GameObject name
instanceId	int	No*	GameObject instance ID
path	string	No*	GameObject hierarchy path
controllerPath	string	Yes	Controller asset path

*At least one identifier required.

animator_list_states

List all states in a controller layer.

Parameter	Type	Required	Default	Description
controllerPath	string	Yes	-	Controller asset path
layer	int	No	0	Layer index

Returns: {controller, layer, layerName, stateCount, states: [{name, tag, speed, hasMotion}]}

animator_add_state

Add a state to an Animator Controller layer.

Parameter	Type	Required	Default	Description
controllerPath	string	Yes	-	Controller asset path
stateName	string	Yes	-	Name for the new state
clipPath	string	No	null	Animation clip asset path to assign
layer	int	No	0	Layer index

Returns: {success, controller, stateName, layer}

animator_add_transition

Add a transition between two states in an Animator Controller.

Parameter	Type	Required	Default	Description
controllerPath	string	Yes	-	Controller asset path
fromState	string	Yes	-	Source state name
toState	string	Yes	-	Destination state name
layer	int	No	0	Layer index
hasExitTime	bool	No	true	Whether transition waits for exit time
duration	float	No	0.25	Transition duration in seconds

Returns: {success, from, to, layer, hasExitTime, duration}

---

Example: Complete Animation Setup

import unity_skills

# 1. Create controller
unity_skills.call_skill("animator_create_controller",
    name="PlayerController",
    folder="Assets/Animations"
)

# 2. Add parameters
unity_skills.call_skill("animator_add_parameter",
    controllerPath="Assets/Animations/PlayerController.controller",
    paramName="Speed", paramType="float", defaultFloat=0
)
unity_skills.call_skill("animator_add_parameter",
    controllerPath="Assets/Animations/PlayerController.controller",
    paramName="IsGrounded", paramType="bool", defaultBool=True
)
unity_skills.call_skill("animator_add_parameter",
    controllerPath="Assets/Animations/PlayerController.controller",
    paramName="Jump", paramType="trigger"
)

# 3. Assign to character
unity_skills.call_skill("animator_assign_controller",
    name="Player",
    controllerPath="Assets/Animations/PlayerController.controller"
)

# 4. Control at runtime
unity_skills.call_skill("animator_set_parameter",
    name="Player", paramName="Speed", paramType="float", floatValue=5.0
)

# Trigger jump
unity_skills.call_skill("animator_set_parameter",
    name="Player", paramName="Jump", paramType="trigger"
)

# Play specific state
unity_skills.call_skill("animator_play", name="Player", stateName="Idle")

Best Practices

1. Create controller before adding parameters
2. Use meaningful parameter names
3. Triggers reset automatically after firing
4. Set parameters before playing states
5. Use layers for independent animations (body + face)
6. States must exist in controller before playing

---

Exact Signatures

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