modify_thread
Add or remove labels from Gmail threads to organize and categorize email conversations for better inbox management.
Instructions
Modify the labels applied to a thread
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | The ID of the thread to modify | |
| addLabelIds | No | A list of label IDs to add to the thread | |
| removeLabelIds | No | A list of label IDs to remove from the thread |
Implementation Reference
- src/index.ts:763-769 (handler)Handler function for the 'modify_thread' tool. Destructures params to extract id and threadData (addLabelIds, removeLabelIds), then uses handleTool to call Gmail API's threads.modify method.async (params) => { const { id, ...threadData } = params return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.threads.modify({ userId: 'me', id, requestBody: threadData }) return formatResponse(data) }) }
- src/index.ts:759-762 (schema)Input schema for 'modify_thread' tool using Zod: requires thread id, optional arrays of label IDs to add or remove.id: z.string().describe("The ID of the thread to modify"), addLabelIds: z.array(z.string()).optional().describe("A list of label IDs to add to the thread"), removeLabelIds: z.array(z.string()).optional().describe("A list of label IDs to remove from the thread") },
- src/index.ts:756-770 (registration)Registration of the 'modify_thread' MCP tool on the McpServer instance, providing name, description, input schema, and handler.server.tool("modify_thread", "Modify the labels applied to a thread", { id: z.string().describe("The ID of the thread to modify"), addLabelIds: z.array(z.string()).optional().describe("A list of label IDs to add to the thread"), removeLabelIds: z.array(z.string()).optional().describe("A list of label IDs to remove from the thread") }, async (params) => { const { id, ...threadData } = params return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.threads.modify({ userId: 'me', id, requestBody: threadData }) return formatResponse(data) }) } )
- src/index.ts:49-65 (helper)Shared helper function used by 'modify_thread' and other tools to handle OAuth2 authentication, create Gmail client, execute the API call, and handle errors.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)Helper function to format tool responses as MCP content blocks with JSON-stringified data.const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })