add_delegate
Grant access to your Gmail account by adding a delegate who can manage emails and settings 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:948-959 (registration)Registration of the 'add_delegate' MCP tool, including description, input schema, 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:953-958 (handler)Handler function executing the 'add_delegate' tool logic: authenticates via handleTool and calls Gmail API to create a delegate with the provided 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:950-952 (schema)Input schema for 'add_delegate' tool using Zod: requires delegateEmail as string.
{ delegateEmail: z.string().describe("Email address of delegate to add") }, - src/index.ts:50-66 (helper)Generic helper function 'handleTool' used by all tools including 'add_delegate' for OAuth2 authentication and Gmail client creation before executing the API call.
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:48-49 (helper)Helper function 'formatResponse' used to format API responses for all tools including 'add_delegate' into MCP content format.
const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })