update_vacation

Instructions

Implementation Reference

• src/index.ts:910-927 (registration)

  Registration of the 'update_vacation' MCP tool, including input schema validation with Zod and the handler function that calls the Gmail API to update vacation responder settings via handleTool wrapper.

  server.tool("update_vacation",
    "Update vacation responder settings",
    {
      enableAutoReply: z.boolean().describe("Whether the vacation responder is enabled"),
      responseSubject: z.string().optional().describe("Optional subject line for the vacation responder auto-reply"),
      responseBodyPlainText: z.string().describe("Response body in plain text format"),
      restrictToContacts: z.boolean().optional().describe("Whether responses are only sent to contacts"),
      restrictToDomain: z.boolean().optional().describe("Whether responses are only sent to users in the same domain"),
      startTime: z.string().optional().describe("Start time for sending auto-replies (epoch ms)"),
      endTime: z.string().optional().describe("End time for sending auto-replies (epoch ms)")
    },
    async (params) => {
      return handleTool(config, async (gmail: gmail_v1.Gmail) => {
        const { data } = await gmail.users.settings.updateVacation({ userId: 'me', requestBody: params })
        return formatResponse(data)
      })
    }
  )

• src/index.ts:49-65 (handler)

  Shared handler logic for all Gmail API tools, including OAuth2 authentication validation and client creation before executing the provided API call. Used by update_vacation tool.

  const handleTool = async (queryConfig: Record<string, any> | undefined, apiCall: (gmail: gmail_v1.Gmail) => Promise<any>) => {
    try {
      const oauth2Client = queryConfig ? createOAuth2Client(queryConfig) : defaultOAuth2Client
      if (!oauth2Client) throw new Error('OAuth2 client could not be created, please check your credentials')
  
      const credentialsAreValid = await validateCredentials(oauth2Client)
      if (!credentialsAreValid) throw new Error('OAuth2 credentials are invalid, please re-authenticate')
  
      const gmailClient = queryConfig ? google.gmail({ version: 'v1', auth: oauth2Client }) : defaultGmailClient
      if (!gmailClient) throw new Error('Gmail client could not be created, please check your credentials')
  
      const result = await apiCall(gmailClient)
      return result
    } catch (error: any) {
      return `Tool execution failed: ${error.message}`
    }
  }

• src/index.ts:47-47 (helper)

  Helper function to format API responses in MCP-compatible content structure, used by update_vacation handler.

  const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })

• src/index.ts:912-919 (schema)

  Zod schema for input parameters of the update_vacation tool.

  {
    enableAutoReply: z.boolean().describe("Whether the vacation responder is enabled"),
    responseSubject: z.string().optional().describe("Optional subject line for the vacation responder auto-reply"),
    responseBodyPlainText: z.string().describe("Response body in plain text format"),
    restrictToContacts: z.boolean().optional().describe("Whether responses are only sent to contacts"),
    restrictToDomain: z.boolean().optional().describe("Whether responses are only sent to users in the same domain"),
    startTime: z.string().optional().describe("Start time for sending auto-replies (epoch ms)"),
    endTime: z.string().optional().describe("End time for sending auto-replies (epoch ms)")