watch_mailbox
Monitor Gmail mailbox for new emails or changes by setting up real-time notifications through Cloud Pub/Sub topics, with optional label filtering.
Instructions
Watch for changes to the user's mailbox
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| topicName | Yes | The name of the Cloud Pub/Sub topic to publish notifications to | |
| labelIds | No | Label IDs to restrict notifications to | |
| labelFilterAction | No | Whether to include or exclude the specified labels |
Implementation Reference
- src/index.ts:1281-1294 (registration)Registration of the 'watch_mailbox' tool with input schema using Zod and handler function that uses the shared handleTool to call Gmail API's users.watch method for watching mailbox changes.
server.tool("watch_mailbox", "Watch for changes to the user's mailbox", { topicName: z.string().describe("The name of the Cloud Pub/Sub topic to publish notifications to"), labelIds: z.array(z.string()).optional().describe("Label IDs to restrict notifications to"), labelFilterAction: z.enum(['include', 'exclude']).optional().describe("Whether to include or exclude the specified labels") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.watch({ userId: 'me', requestBody: params }) return formatResponse(data) }) } ) - src/index.ts:1283-1287 (schema)Input schema for the 'watch_mailbox' tool defining parameters for Pub/Sub topic and label filtering.
{ topicName: z.string().describe("The name of the Cloud Pub/Sub topic to publish notifications to"), labelIds: z.array(z.string()).optional().describe("Label IDs to restrict notifications to"), labelFilterAction: z.enum(['include', 'exclude']).optional().describe("Whether to include or exclude the specified labels") }, - src/index.ts:1288-1293 (handler)Handler function for 'watch_mailbox' tool that invokes the Gmail API watch endpoint via the shared handleTool utility.
async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.watch({ userId: 'me', requestBody: params }) return formatResponse(data) }) } - src/index.ts:49-65 (helper)Shared helper function used by all Gmail tools, including 'watch_mailbox', to handle OAuth2 authentication, client creation, and API call execution.
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}` } }