Kursach_StealthAction/.opencode/skills/cinemachine-set-noise/SKILL.md

name	description	metadata
cinemachine-set-noise	Add or configure a `CinemachineBasicMultiChannelPerlin` (procedural camera shake / handheld noise) on a `CinemachineCamera`. Sets `AmplitudeGain` and `FrequencyGain`. The noise profile asset is optional and left untouched when not supplied.	generated-by mcp-plugin-dotnet

Cinemachine / Set Noise

Add or configure a CinemachineBasicMultiChannelPerlin noise component on a CinemachineCamera. This drives procedural Perlin-noise shake (handheld camera feel). The actual noise shape comes from a NoiseSettings profile asset; without one, the amplitude/frequency gains have no visible effect, so this tool is null-safe and does not require a profile.

Inputs

• gameObjectRef — the GameObject hosting the CinemachineCamera (required).
• amplitudeGain — optional gain applied to the profile amplitudes (1 = normal).
• frequencyGain — optional gain applied to the profile frequencies (1 = normal).

Behavior

Reuses an existing CinemachineBasicMultiChannelPerlin on the GameObject or adds one, then applies the provided gains. The noise profile asset is never modified here (leave it null-safe). Marks the scene dirty and repaints. Runs on the Unity main thread.

How to Call

unity-mcp-cli run-tool cinemachine-set-noise --input '{
  "gameObjectRef": "string_value",
  "amplitudeGain": "string_value",
  "frequencyGain": "string_value"
}'

For complex input (multi-line strings, code), save the JSON to a file and use:

unity-mcp-cli run-tool cinemachine-set-noise --input-file args.json

Or pipe via stdin (recommended):

unity-mcp-cli run-tool cinemachine-set-noise --input-file - <<'EOF'
{"param": "value"}
EOF

Troubleshooting

If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead. Read the /unity-initial-setup skill for detailed installation instructions.

Input

Name	Type	Required	Description
gameObjectRef	any	Yes	Reference to the GameObject containing the CinemachineCamera component.
amplitudeGain	any	No	Gain applied to the noise profile amplitudes (1 = normal).
frequencyGain	any	No	Gain applied to the noise profile frequencies (1 = normal).

Input JSON Schema

{
  "type": "object",
  "properties": {
    "gameObjectRef": {
      "$ref": "#/$defs/AIGD.GameObjectRef"
    },
    "amplitudeGain": {
      "$ref": "#/$defs/System.Single"
    },
    "frequencyGain": {
      "$ref": "#/$defs/System.Single"
    }
  },
  "$defs": {
    "UnityEngine.EntityId": {
      "type": "string",
      "pattern": "^[0-9]+$"
    },
    "System.Type": {
      "type": "string"
    },
    "AIGD.GameObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "$ref": "#/$defs/UnityEngine.EntityId",
          "description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
        },
        "path": {
          "type": "string",
          "description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
        },
        "name": {
          "type": "string",
          "description": "Name of a GameObject in hierarchy. Priority: 3."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Find GameObject in opened Prefab or in the active Scene."
    },
    "System.Single": {
      "type": "number"
    }
  },
  "required": [
    "gameObjectRef"
  ]
}

Output

Output JSON Schema

{
  "type": "object",
  "properties": {
    "result": {
      "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Cinemachine-SetNoiseResponse"
    }
  },
  "$defs": {
    "AIGD.GameObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "$ref": "#/$defs/UnityEngine.EntityId",
          "description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
        },
        "path": {
          "type": "string",
          "description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
        },
        "name": {
          "type": "string",
          "description": "Name of a GameObject in hierarchy. Priority: 3."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Find GameObject in opened Prefab or in the active Scene."
    },
    "UnityEngine.EntityId": {
      "type": "string",
      "pattern": "^[0-9]+$"
    },
    "System.Type": {
      "type": "string"
    },
    "AIGD.ComponentRef": {
      "type": "object",
      "properties": {
        "index": {
          "type": "integer",
          "description": "Component 'index' attached to a gameObject. The first index is '0' and that is usually Transform or RectTransform. Priority: 2. Default value is -1."
        },
        "typeName": {
          "type": "string",
          "description": "Component type full name. Sample 'UnityEngine.Transform'. If the gameObject has two components of the same type, the output component is unpredictable. Priority: 3. Default value is null."
        },
        "instanceID": {
          "$ref": "#/$defs/UnityEngine.EntityId",
          "description": "instanceID of the UnityEngine.Object. If this is '0', then it will be used as 'null'."
        }
      },
      "required": [
        "index",
        "instanceID"
      ],
      "description": "Component reference. Used to find a Component at GameObject."
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Cinemachine-SetNoiseResponse": {
      "type": "object",
      "properties": {
        "gameObjectRef": {
          "$ref": "#/$defs/AIGD.GameObjectRef",
          "description": "Reference to the CinemachineCamera GameObject."
        },
        "cameraRef": {
          "$ref": "#/$defs/AIGD.ComponentRef",
          "description": "Reference to the CinemachineCamera component."
        },
        "amplitudeGain": {
          "type": "number",
          "description": "Resulting amplitude gain."
        },
        "frequencyGain": {
          "type": "number",
          "description": "Resulting frequency gain."
        },
        "hasNoiseProfile": {
          "type": "boolean",
          "description": "Whether a NoiseSettings profile asset is assigned."
        },
        "success": {
          "type": "boolean",
          "description": "Whether the operation succeeded."
        }
      },
      "required": [
        "amplitudeGain",
        "frequencyGain",
        "hasNoiseProfile",
        "success"
      ]
    }
  },
  "required": [
    "result"
  ]
}