MCP Server for Unity

Instructions

Implementation Reference

• src/tools/unity-mcp-tools.ts:393-404 (handler)

  Handler for the shader_read tool. Validates path argument, calls UnityHttpAdapter.readShader, and formats the shader content in the tool response.

  case 'shader_read': {
    if (!args.path) {
      throw new Error('path is required');
    }
    const result = await this.adapter.readShader(args.path);
    return {
      content: [{
        type: 'text',
        text: `Shader content from ${result.path}:\n\n${result.content}`
      }]
    };
  }

• src/tools/unity-mcp-tools.ts:165-178 (schema)

  Tool schema definition including name, description, and input validation requiring a 'path' parameter.

  {
    name: 'shader_read',
    description: 'Read a shader from Unity project',
    inputSchema: {
      type: 'object',
      properties: {
        path: {
          type: 'string',
          description: 'Path to the shader file'
        }
      },
      required: ['path']
    }
  },

• src/adapters/unity-http-adapter.ts:139-141 (helper)

  Adapter helper method that sends HTTP POST request to Unity MCP server endpoint 'shader/read' with the file path.

  async readShader(path: string): Promise<any> {
    return this.call('shader/read', { path });
  }

• src/tools/unity-mcp-tools.ts:165-178 (registration)

  Registration of the shader_read tool in the getTools() method's return array.

  {
    name: 'shader_read',
    description: 'Read a shader from Unity project',
    inputSchema: {
      type: 'object',
      properties: {
        path: {
          type: 'string',
          description: 'Path to the shader file'
        }
      },
      required: ['path']
    }
  },