add_delegate
Grant email management access by adding a delegate to your Gmail account, allowing them to send and read messages on your behalf.
Instructions
Adds a delegate to the specified account
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| delegateEmail | Yes | Email address of delegate to add |
Implementation Reference
- src/index.ts:929-940 (registration)Registration of the 'add_delegate' MCP tool, including description, input schema using Zod, and inline handler function that uses the Gmail API to add a delegate.server.tool("add_delegate", "Adds a delegate to the specified account", { delegateEmail: z.string().describe("Email address of delegate to add") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.delegates.create({ userId: 'me', requestBody: { delegateEmail: params.delegateEmail } }) return formatResponse(data) }) } )
- src/index.ts:934-939 (handler)The core handler function for 'add_delegate' tool execution. It invokes handleTool (shared OAuth handler) which calls the Gmail API's users.settings.delegates.create method to add the specified delegate email.async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.delegates.create({ userId: 'me', requestBody: { delegateEmail: params.delegateEmail } }) return formatResponse(data) }) }
- src/index.ts:932-933 (schema)Input schema definition for the 'add_delegate' tool using Zod: requires a single string parameter 'delegateEmail'.delegateEmail: z.string().describe("Email address of delegate to add") },
- src/index.ts:49-65 (helper)Shared helper function 'handleTool' used by all Gmail tools, including 'add_delegate', to manage OAuth2 client creation, credential validation, Gmail client instantiation, and API call execution 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:47-47 (helper)Shared helper 'formatResponse' used by the 'add_delegate' handler to format the Gmail API response into MCP content structure.const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })