patch_label
Update specific properties of an existing Gmail label, such as its name, visibility settings, or color scheme, using partial modification.
Instructions
Patch an existing label (partial update)
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | The ID of the label to patch | |
| name | No | The display name of the label | |
| messageListVisibility | No | The visibility of messages with this label in the message list | |
| labelListVisibility | No | The visibility of the label in the label list | |
| color | No | The color settings for the label |
Implementation Reference
- src/index.ts:478-497 (registration)Registration of the 'patch_label' MCP tool, including description, input schema, and handler function.server.tool("patch_label", "Patch an existing label (partial update)", { id: z.string().describe("The ID of the label to patch"), name: z.string().optional().describe("The display name of the label"), messageListVisibility: z.enum(['show', 'hide']).optional().describe("The visibility of messages with this label in the message list"), labelListVisibility: z.enum(['labelShow', 'labelShowIfUnread', 'labelHide']).optional().describe("The visibility of the label in the label list"), color: z.object({ textColor: z.string().describe("The text color of the label as hex string"), backgroundColor: z.string().describe("The background color of the label as hex string") }).optional().describe("The color settings for the label") }, async (params) => { const { id, ...labelData } = params return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.labels.patch({ userId: 'me', id, requestBody: labelData }) return formatResponse(data) }) } )
- src/index.ts:490-496 (handler)Handler function that destructures params into id and labelData, then uses handleTool to call Gmail API labels.patch and formats the response.async (params) => { const { id, ...labelData } = params return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.labels.patch({ userId: 'me', id, requestBody: labelData }) return formatResponse(data) }) }
- src/index.ts:480-489 (schema)Zod schema defining input parameters for the patch_label tool: required id, optional name, visibilities, and color object.{ id: z.string().describe("The ID of the label to patch"), name: z.string().optional().describe("The display name of the label"), messageListVisibility: z.enum(['show', 'hide']).optional().describe("The visibility of messages with this label in the message list"), labelListVisibility: z.enum(['labelShow', 'labelShowIfUnread', 'labelHide']).optional().describe("The visibility of the label in the label list"), color: z.object({ textColor: z.string().describe("The text color of the label as hex string"), backgroundColor: z.string().describe("The background color of the label as hex string") }).optional().describe("The color settings for the label") },
- src/index.ts:50-66 (helper)Shared helper function handleTool used by patch_label (and other tools) to handle OAuth2 authentication, client creation, 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}` } }