update_imap
Configure IMAP access for Gmail accounts by enabling/disabling the protocol, setting message deletion behavior, and managing folder size limits.
Instructions
Updates IMAP settings
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| enabled | Yes | Whether IMAP is enabled for the account | |
| expungeBehavior | No | The action that will be executed on a message when it is marked as deleted and expunged from the last visible IMAP folder | |
| maxFolderSize | No | An optional limit on the number of messages that can be accessed through IMAP |
Implementation Reference
- src/index.ts:887-900 (registration)Registration of the 'update_imap' tool, including schema definition and inline handler function that calls the Gmail API to update IMAP settings.
server.tool("update_imap", "Updates IMAP settings", { enabled: z.boolean().describe("Whether IMAP is enabled for the account"), expungeBehavior: z.enum(['archive', 'trash', 'deleteForever']).optional().describe("The action that will be executed on a message when it is marked as deleted and expunged from the last visible IMAP folder"), maxFolderSize: z.number().optional().describe("An optional limit on the number of messages that can be accessed through IMAP") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.updateImap({ userId: 'me', requestBody: params }) return formatResponse(data) }) } ) - src/index.ts:894-900 (handler)Handler function for 'update_imap' tool: authenticates via handleTool, calls gmail.users.settings.updateImap with userId 'me' and requestBody params, formats and returns the response.
async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.updateImap({ userId: 'me', requestBody: params }) return formatResponse(data) }) } ) - src/index.ts:889-893 (schema)Input schema for 'update_imap' tool using Zod: enabled (boolean, required), expungeBehavior (enum, optional), maxFolderSize (number, optional).
{ enabled: z.boolean().describe("Whether IMAP is enabled for the account"), expungeBehavior: z.enum(['archive', 'trash', 'deleteForever']).optional().describe("The action that will be executed on a message when it is marked as deleted and expunged from the last visible IMAP folder"), maxFolderSize: z.number().optional().describe("An optional limit on the number of messages that can be accessed through IMAP") }, - src/index.ts:50-66 (helper)Shared helper function handleTool used by all Gmail API tools, including update_imap: handles OAuth2 authentication, client creation, and executes the provided apiCall with error handling.
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:48-48 (helper)Helper function formatResponse used by update_imap handler to format API responses as MCP content blocks.
const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })