Google Tag Manager MCP Server

Instructions

Implementation Reference

• src/index.js:1896-1913 (handler)

  MCP tool execution handler for 'delete_variable'. Extracts arguments and calls GTMClient.deleteVariable, returning the result as formatted JSON text content.

  case 'delete_variable':
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(
            await this.gtmClient.deleteVariable(
              args.accountId,
              args.containerId,
              args.workspaceId,
              args.variableId
            ),
            null,
            2
          ),
        },
      ],
    };

• src/index.js:801-826 (schema)

  Tool schema definition including input schema for 'delete_variable' provided in the listTools response.

  {
    name: 'delete_variable',
    description: '変数を削除します',
    inputSchema: {
      type: 'object',
      properties: {
        accountId: {
          type: 'string',
          description: 'アカウントID',
        },
        containerId: {
          type: 'string',
          description: 'コンテナID',
        },
        workspaceId: {
          type: 'string',
          description: 'ワークスペースID',
        },
        variableId: {
          type: 'string',
          description: '変数ID',
        },
      },
      required: ['accountId', 'containerId', 'workspaceId', 'variableId'],
    },
  },

• src/gtm-client.js:338-344 (helper)

  Core implementation in GTMClient that authenticates and calls the Google Tag Manager API to delete the specified variable.

  async deleteVariable(accountId, containerId, workspaceId, variableId) {
    await this.ensureAuth();
    await this.tagmanager.accounts.containers.workspaces.variables.delete({
      path: `accounts/${accountId}/containers/${containerId}/workspaces/${workspaceId}/variables/${variableId}`
    });
    return { success: true };
  }