get_draft
Retrieve a specific Gmail draft by its ID to access and review saved email content before sending.
Instructions
Get a specific draft by ID
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | The ID of the draft to retrieve | |
| includeBodyHtml | No | Whether to include the parsed HTML in the return for each body, excluded by default because they can be excessively large |
Implementation Reference
- src/index.ts:284-297 (handler)The handler function for the 'get_draft' tool. It uses handleTool to authenticate and call the Gmail API to retrieve a specific draft by ID in full format, processes the message payload (decoding and filtering), and formats the response as JSON.async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.drafts.get({ userId: 'me', id: params.id, format: 'full' }) if (data.message?.payload) { data.message.payload = processMessagePart( data.message.payload, params.includeBodyHtml ) } return formatResponse(data) }) }
- src/index.ts:280-283 (schema)Input schema using Zod: required 'id' (string, draft ID), optional 'includeBodyHtml' (boolean) to control HTML body inclusion.{ id: z.string().describe("The ID of the draft to retrieve"), includeBodyHtml: z.boolean().optional().describe("Whether to include the parsed HTML in the return for each body, excluded by default because they can be excessively large") },
- src/index.ts:278-298 (registration)Registration of the 'get_draft' tool on the MCP server, including name, description, input schema, and inline handler function.server.tool("get_draft", "Get a specific draft by ID", { id: z.string().describe("The ID of the draft to retrieve"), includeBodyHtml: z.boolean().optional().describe("Whether to include the parsed HTML in the return for each body, excluded by default because they can be excessively large") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.drafts.get({ userId: 'me', id: params.id, format: 'full' }) if (data.message?.payload) { data.message.payload = processMessagePart( data.message.payload, params.includeBodyHtml ) } return formatResponse(data) }) } )
- src/index.ts:49-65 (helper)Shared helper function used by get_draft (and other tools) for handling OAuth2 authentication, credential validation, Gmail client creation, and executing the API call 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:79-93 (helper)Helper function to process message parts: decode base64 bodies (unless HTML and not included), recurse into parts, filter headers to specific list.const processMessagePart = (messagePart: MessagePart, includeBodyHtml = false): MessagePart => { if ((messagePart.mimeType !== 'text/html' || includeBodyHtml) && messagePart.body) { messagePart.body = decodedBody(messagePart.body) } if (messagePart.parts) { messagePart.parts = messagePart.parts.map(part => processMessagePart(part, includeBodyHtml)) } if (messagePart.headers) { messagePart.headers = messagePart.headers.filter(header => RESPONSE_HEADERS_LIST.includes(header.name || '')) } return messagePart }