delete_filter
Remove unwanted email filters from your Gmail account by specifying the filter ID to delete.
Instructions
Deletes a filter
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | The ID of the filter to be deleted |
Implementation Reference
- src/index.ts:1045-1050 (handler)Handler function for the 'delete_filter' tool. It invokes the shared 'handleTool' helper to authenticate and call the Gmail API to delete the specified filter by ID.
async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.filters.delete({ userId: 'me', id: params.id }) return formatResponse(data) }) } - src/index.ts:1042-1044 (schema)Input schema for 'delete_filter' tool using Zod to validate the required 'id' parameter.
{ id: z.string().describe("The ID of the filter to be deleted") }, - src/index.ts:1040-1051 (registration)Registration of the 'delete_filter' tool on the MCP server, including description, schema, and handler.
server.tool("delete_filter", "Deletes a filter", { id: z.string().describe("The ID of the filter to be deleted") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.filters.delete({ userId: 'me', id: params.id }) return formatResponse(data) }) } ) - src/index.ts:50-80 (helper)Shared 'handleTool' helper used by 'delete_filter' and other tools to manage OAuth2 authentication, credential validation, Gmail client creation, and error handling for API calls.
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) { // Check for specific authentication errors if ( error.message?.includes("invalid_grant") || error.message?.includes("refresh_token") || error.message?.includes("invalid_client") || error.message?.includes("unauthorized_client") || error.code === 401 || error.code === 403 ) { return formatResponse({ error: `Authentication failed: ${error.message}. Please re-authenticate by running: npx @shinzolabs/gmail-mcp auth`, }); } return formatResponse({ error: `Tool execution failed: ${error.message}` }); } } - src/index.ts:48-48 (helper)Helper function to format API responses into MCP content structure.
const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })