todoist-mcp

Instructions

Implementation Reference

• src/tools/projects.ts:31-45 (registration)

  Registers the MCP tool 'get_projects' with batch API handler creator, defining input schema for id or name, GET /projects/{id}, read mode with name-based lookup support.
  createBatchApiHandler({ name: 'get_projects', description: 'Get projects from Todoist', itemSchema: { id: z.string().optional().describe('ID of the project to retrieve (preferred over name)'), name: z.string().optional().describe('Name of the project to retrieve'), }, method: 'GET', path: '/projects/{id}', mode: 'read', idField: 'id', nameField: 'name', findByName: (name, items) => items.find(item => item.name.toLowerCase().includes(name.toLowerCase())), });
• src/tools/projects.ts:34-37 (schema)

  Zod schema for tool input: optional project id or name.
  itemSchema: { id: z.string().optional().describe('ID of the project to retrieve (preferred over name)'), name: z.string().optional().describe('Name of the project to retrieve'), },
• src/utils/handlers.ts:201-353 (handler)

  Executes the tool logic for batch read operations like get_projects: supports batch input of projects by id or name, fetches all projects for lookup, calls Todoist API GET /projects/{id} for each, returns batched results with success summary.
  const handler = async (args: z.infer<typeof batchSchema>): Promise<any> => { const { items } = args; // For modes other than create, check if name lookup is needed let allItems: any[] = []; const needsNameLookup = options.mode !== 'create' && options.nameField && options.findByName && items.some(item => item[options.nameField!] && !item[options.idField!]); if (needsNameLookup) { // Determine the base path for fetching all items // Example: /tasks from /tasks/{id} const lookupPath = options.basePath || (options.path ? options.path.split('/{')[0] : ''); allItems = await todoistApi.get(lookupPath, {}); } const results = await Promise.all( items.map(async item => { if (options.validateItem) { const validation = options.validateItem(item); if (!validation.valid) { return { success: false, error: validation.error || 'Validation failed', item, }; } } try { let finalPath = ''; const apiParams = { ...item }; // For modes where need id if (options.mode !== 'create' && options.idField) { let itemId = item[options.idField]; let matchedName = null; let matchedContent = null; // If no ID but name is provided, search by name if (!itemId && item[options.nameField!] && options.findByName) { const searchName = item[options.nameField!]; const matchedItem = options.findByName(searchName, allItems); if (!matchedItem) { return { success: false, error: `Item not found with name: ${searchName}`, item, }; } itemId = matchedItem.id; matchedName = searchName; matchedContent = matchedItem.content; } if (!itemId) { return { success: false, error: `Either ${options.idField} or ${options.nameField} must be provided`, item, }; } // Apply security validation to itemId before using in path const safeItemId = validatePathParameter(itemId, options.idField || 'id'); if (options.basePath && options.pathSuffix) { finalPath = `${options.basePath}${options.pathSuffix.replace('{id}', safeItemId)}`; } else if (options.path) { finalPath = options.path.replace('{id}', safeItemId); } delete apiParams[options.idField]; if (options.nameField) { delete apiParams[options.nameField]; } let result; switch (options.method) { case 'GET': result = await todoistApi.get(finalPath, apiParams); break; case 'POST': result = await todoistApi.post(finalPath, apiParams); break; case 'DELETE': result = await todoistApi.delete(finalPath); break; } const response: any = { success: true, id: itemId, result, }; if (matchedName) { response.found_by_name = matchedName; response.matched_content = matchedContent; } return response; } // Create mode else { finalPath = options.path || options.basePath || ''; let result; switch (options.method) { case 'GET': result = await todoistApi.get(finalPath, apiParams); break; case 'POST': result = await todoistApi.post(finalPath, apiParams); break; case 'DELETE': result = await todoistApi.delete(finalPath); break; } return { success: true, created_item: result, }; } } catch (error) { return { success: false, error: error instanceof Error ? error.message : String(error), item, }; } }) ); const successCount = results.filter(r => r.success).length; return { success: successCount === items.length, summary: { total: items.length, succeeded: successCount, failed: items.length - successCount, }, results, }; };
• src/utils/handlers.ts:76-77 (helper)

  Registers the generated handler as an MCP tool on the server using server.tool.
  server.tool(name, description, paramsSchema, mcpToolCallback as unknown as ToolCallback<T>); }
• src/tools/projects.ts:43-44 (helper)

  Helper function to find project by partial name match for id resolution.
  findByName: (name, items) => items.find(item => item.name.toLowerCase().includes(name.toLowerCase())),