For complex input (multi-line strings, code), save the JSON to a file and use:
unity-mcp-cli run-tool assets-shader-get-data --input-file args.json
Or pipe via stdin (recommended):
unity-mcp-cli run-tool assets-shader-get-data --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
`assetRef`	`any`	Yes	Reference to UnityEngine.Object asset instance. It could be Material, ScriptableObject, Prefab, and any other Asset. Anything located in the Assets and Packages folders.
`includeMessages`	`any`	No	Include compilation error and warning messages. Default: true
`includeProperties`	`any`	No	Include shader properties (uniforms) list. Default: false
`includeSubshaders`	`any`	No	Include subshader and pass structure. Default: false
`includeSourceCode`	`any`	No	Include pass source code in subshader data. Requires 'includeSubshaders' to be true. Can produce very large responses. Default: false

Input JSON Schema

{
  "type": "object",
  "properties": {
    "assetRef": {
      "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Runtime.Data.AssetObjectRef"
    },
    "includeMessages": {
      "$ref": "#/$defs/System.Boolean"
    },
    "includeProperties": {
      "$ref": "#/$defs/System.Boolean"
    },
    "includeSubshaders": {
      "$ref": "#/$defs/System.Boolean"
    },
    "includeSourceCode": {
      "$ref": "#/$defs/System.Boolean"
    }
  },
  "$defs": {
    "System.Type": {
      "type": "string"
    },
    "com.IvanMurzak.Unity.MCP.Runtime.Data.AssetObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "type": "integer",
          "description": "instanceID of the UnityEngine.Object. If this is '0' and 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'."
        },
        "assetType": {
          "$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": "Reference to UnityEngine.Object asset instance. It could be Material, ScriptableObject, Prefab, and any other Asset. Anything located in the Assets and Packages folders."
    },
    "System.Boolean": {
      "type": "boolean"
    }
  },
  "required": [
    "assetRef"
  ]
}

Output

Output JSON Schema

{
  "type": "object",
  "properties": {
    "result": {
      "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderData"
    }
  },
  "$defs": {
    "com.IvanMurzak.Unity.MCP.Runtime.Data.AssetObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "type": "integer",
          "description": "instanceID of the UnityEngine.Object. If this is '0' and 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Reference to UnityEngine.Object asset instance. It could be Material, ScriptableObject, Prefab, and any other Asset. Anything located in the Assets and Packages folders."
    },
    "System.Type": {
      "type": "string"
    },
    "System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderMessageData>": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderMessageData"
      }
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderMessageData": {
      "type": "object",
      "properties": {
        "Message": {
          "type": "string",
          "description": "The error or warning message text."
        },
        "Line": {
          "type": "integer",
          "description": "The line number in the shader source where the issue occurs."
        },
        "Severity": {
          "type": "string",
          "description": "Severity level (e.g. 'Error', 'Warning')."
        },
        "Platform": {
          "type": "string",
          "description": "The platform on which the error occurs (e.g. 'OpenGLCore', 'D3D11')."
        }
      },
      "required": [
        "Line"
      ]
    },
    "System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderPropertyData>": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderPropertyData"
      }
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderPropertyData": {
      "type": "object",
      "properties": {
        "Name": {
          "type": "string",
          "description": "Property name as used in shader code (e.g. '_MainTex', '_Color')."
        },
        "Description": {
          "type": "string",
          "description": "Human-readable description/display name of the property."
        },
        "Type": {
          "type": "string",
          "description": "Property type (e.g. 'Color', 'Float', 'Range', 'Texture', 'Vector', 'Int')."
        },
        "Flags": {
          "type": "string",
          "description": "Property flags (e.g. 'None', 'HideInInspector', 'PerRendererData')."
        },
        "NameId": {
          "type": "integer",
          "description": "The unique name ID for this property."
        },
        "RangeMin": {
          "type": "number",
          "description": "Minimum value for Range properties. Null for non-range properties."
        },
        "RangeMax": {
          "type": "number",
          "description": "Maximum value for Range properties. Null for non-range properties."
        },
        "DefaultTextureName": {
          "type": "string",
          "description": "Default texture name for Texture properties. Null if not applicable."
        },
        "Attributes": {
          "$ref": "#/$defs/System.Collections.Generic.List<System.String>",
          "description": "Custom attributes applied to this property. Null if none."
        }
      },
      "required": [
        "NameId"
      ]
    },
    "System.Collections.Generic.List<System.String>": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+SubshaderData>": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+SubshaderData"
      }
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+SubshaderData": {
      "type": "object",
      "properties": {
        "Index": {
          "type": "integer",
          "description": "Index of this subshader within the shader."
        },
        "PassCount": {
          "type": "integer",
          "description": "Number of passes in this subshader."
        },
        "Passes": {
          "$ref": "#/$defs/System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+PassData>",
          "description": "List of passes in this subshader. Null if no passes."
        }
      },
      "required": [
        "Index",
        "PassCount"
      ]
    },
    "System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+PassData>": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+PassData"
      }
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+PassData": {
      "type": "object",
      "properties": {
        "Index": {
          "type": "integer",
          "description": "Index of this pass within the subshader."
        },
        "Name": {
          "type": "string",
          "description": "Name of the pass. Null if unnamed."
        },
        "SourceCode": {
          "type": "string",
          "description": "Source code of the pass. Null if unavailable."
        }
      },
      "required": [
        "Index"
      ]
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderData": {
      "type": "object",
      "properties": {
        "Reference": {
          "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Runtime.Data.AssetObjectRef",
          "description": "Reference to the shader asset for future operations."
        },
        "Name": {
          "type": "string",
          "description": "Full name of the shader (e.g. 'Standard', 'Universal Render Pipeline/Lit')."
        },
        "IsSupported": {
          "type": "boolean",
          "description": "Whether the shader is supported on the current GPU and platform."
        },
        "RenderQueue": {
          "type": "integer",
          "description": "The render queue value of the shader."
        },
        "HasErrors": {
          "type": "boolean",
          "description": "Whether the shader has any compilation errors."
        },
        "PropertyCount": {
          "type": "integer",
          "description": "Number of properties exposed by the shader."
        },
        "PassCount": {
          "type": "integer",
          "description": "Total number of passes in the shader."
        },
        "RenderType": {
          "type": "string",
          "description": "The RenderType tag value from the first pass, if set."
        },
        "Messages": {
          "$ref": "#/$defs/System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderMessageData>",
          "description": "Compilation messages including errors and warnings. Null if no messages."
        },
        "Properties": {
          "$ref": "#/$defs/System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+ShaderPropertyData>",
          "description": "List of shader properties (uniforms). Null if the shader has no properties."
        },
        "Subshaders": {
          "$ref": "#/$defs/System.Collections.Generic.List<com.IvanMurzak.Unity.MCP.Editor.API.Tool_Assets_Shader+SubshaderData>",
          "description": "List of subshaders with their passes. Null if shader data is unavailable."
        }
      },
      "required": [
        "IsSupported",
        "RenderQueue",
        "HasErrors",
        "PropertyCount",
        "PassCount"
      ]
    }
  },
  "required": [
    "result"
  ]
}

assets-shader-get-data

Assets / Shader / Get Data

How to Call