feat(google-tasks): add Google Tasks integration (#3342)

* feat(google-tasks): add Google Tasks integration * fix(google-tasks): return actual taskId in delete response * fix(google-tasks): use absolute imports and fix registry order * fix(google-tasks): rename list-task-lists to list_task_lists for doc generator * improvement(google-tasks): destructure task and taskList outputs with typed schemas * ran lint * improvement(google-tasks): add wandConfig for due date timestamp generation
2026-09-24 15:45:35 +08:00 · 2026-02-25 21:52:34 -08:00
parent e4fb8b2fdd
commit 40016e79a1
20 changed files with 1386 additions and 0 deletions
@@ -1302,6 +1302,21 @@ export function GoogleCalendarIcon(props: SVGProps<SVGSVGElement>) {
  )
 }

+export function GoogleTasksIcon(props: SVGProps<SVGSVGElement>) {
+  return (
+    <svg {...props} viewBox='0 0 527.1 500' xmlns='http://www.w3.org/2000/svg'>
+      <polygon
+        fill='#0066DA'
+        points='410.4,58.3 368.8,81.2 348.2,120.6 368.8,168.8 407.8,211 450,187.5 475.9,142.8 450,87.5'
+      />
+      <path
+        fill='#2684FC'
+        d='M249.3,219.4l98.9-98.9c29.1,22.1,50.5,53.8,59.6,90.4L272.1,346.7c-12.2,12.2-32,12.2-44.2,0l-91.5-91.5 c-9.8-9.8-9.8-25.6,0-35.3l39-39c9.8-9.8,25.6-9.8,35.3,0L249.3,219.4z M519.8,63.6l-39.7-39.7c-9.7-9.7-25.6-9.7-35.3,0 l-34.4,34.4c27.5,23,49.9,51.8,65.5,84.5l43.9-43.9C529.6,89.2,529.6,73.3,519.8,63.6z M412.5,250c0,89.8-72.8,162.5-162.5,162.5 S87.5,339.8,87.5,250S160.2,87.5,250,87.5c36.9,0,70.9,12.3,98.2,33.1l62.2-62.2C367,21.9,311.1,0,250,0C111.9,0,0,111.9,0,250 s111.9,250,250,250s250-111.9,250-250c0-38.3-8.7-74.7-24.1-107.2L407.8,211C410.8,223.5,412.5,236.6,412.5,250z'
+      />
+    </svg>
+  )
+}
+
 export function SupabaseIcon(props: SVGProps<SVGSVGElement>) {
  const id = useId()
  const gradient0 = `supabase_paint0_${id}`
@@ -53,6 +53,7 @@ import {
  GoogleMapsIcon,
  GoogleSheetsIcon,
  GoogleSlidesIcon,
+  GoogleTasksIcon,
  GoogleTranslateIcon,
  GoogleVaultIcon,
  GrafanaIcon,
@@ -200,6 +201,7 @@ export const blockTypeToIconMap: Record<string, IconComponent> = {
  google_search: GoogleIcon,
  google_sheets_v2: GoogleSheetsIcon,
  google_slides_v2: GoogleSlidesIcon,
+  google_tasks: GoogleTasksIcon,
  google_translate: GoogleTranslateIcon,
  google_vault: GoogleVaultIcon,
  grafana: GrafanaIcon,
@@ -0,0 +1,177 @@
+---
+title: Google Tasks
+description: Manage Google Tasks
+---
+
+import { BlockInfoCard } from "@/components/ui/block-info-card"
+
+<BlockInfoCard 
+  type="google_tasks"
+  color="#E0E0E0"
+/>
+
+## Usage Instructions
+
+Integrate Google Tasks into your workflow. Create, read, update, delete, and list tasks and task lists.
+
+
+
+## Tools
+
+### `google_tasks_create`
+
+Create a new task in a Google Tasks list
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `taskListId` | string | No | Task list ID \(defaults to primary task list "@default"\) |
+| `title` | string | Yes | Title of the task \(max 1024 characters\) |
+| `notes` | string | No | Notes/description for the task \(max 8192 characters\) |
+| `due` | string | No | Due date in RFC 3339 format \(e.g., 2025-06-03T00:00:00.000Z\) |
+| `status` | string | No | Task status: "needsAction" or "completed" |
+| `parent` | string | No | Parent task ID to create this task as a subtask. Omit for top-level tasks. |
+| `previous` | string | No | Previous sibling task ID to position after. Omit to place first among siblings. |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `id` | string | Task ID |
+| `title` | string | Task title |
+| `notes` | string | Task notes |
+| `status` | string | Task status \(needsAction or completed\) |
+| `due` | string | Due date |
+| `updated` | string | Last modification time |
+| `selfLink` | string | URL for the task |
+| `webViewLink` | string | Link to task in Google Tasks UI |
+| `parent` | string | Parent task ID |
+| `position` | string | Position among sibling tasks |
+| `completed` | string | Completion date |
+| `deleted` | boolean | Whether the task is deleted |
+
+### `google_tasks_list`
+
+List all tasks in a Google Tasks list
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `taskListId` | string | No | Task list ID \(defaults to primary task list "@default"\) |
+| `maxResults` | number | No | Maximum number of tasks to return \(default 20, max 100\) |
+| `pageToken` | string | No | Token for pagination |
+| `showCompleted` | boolean | No | Whether to show completed tasks \(default true\) |
+| `showDeleted` | boolean | No | Whether to show deleted tasks \(default false\) |
+| `showHidden` | boolean | No | Whether to show hidden tasks \(default false\) |
+| `dueMin` | string | No | Lower bound for due date filter \(RFC 3339 timestamp\) |
+| `dueMax` | string | No | Upper bound for due date filter \(RFC 3339 timestamp\) |
+| `completedMin` | string | No | Lower bound for task completion date \(RFC 3339 timestamp\) |
+| `completedMax` | string | No | Upper bound for task completion date \(RFC 3339 timestamp\) |
+| `updatedMin` | string | No | Lower bound for last modification time \(RFC 3339 timestamp\) |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `tasks` | json | Array of tasks with id, title, notes, status, due, updated, and more |
+| `nextPageToken` | string | Token for retrieving the next page of results |
+
+### `google_tasks_get`
+
+Retrieve a specific task by ID from a Google Tasks list
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `taskListId` | string | No | Task list ID \(defaults to primary task list "@default"\) |
+| `taskId` | string | Yes | The ID of the task to retrieve |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `id` | string | Task ID |
+| `title` | string | Task title |
+| `notes` | string | Task notes |
+| `status` | string | Task status \(needsAction or completed\) |
+| `due` | string | Due date |
+| `updated` | string | Last modification time |
+| `selfLink` | string | URL for the task |
+| `webViewLink` | string | Link to task in Google Tasks UI |
+| `parent` | string | Parent task ID |
+| `position` | string | Position among sibling tasks |
+| `completed` | string | Completion date |
+| `deleted` | boolean | Whether the task is deleted |
+
+### `google_tasks_update`
+
+Update an existing task in a Google Tasks list
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `taskListId` | string | No | Task list ID \(defaults to primary task list "@default"\) |
+| `taskId` | string | Yes | The ID of the task to update |
+| `title` | string | No | New title for the task |
+| `notes` | string | No | New notes for the task |
+| `due` | string | No | New due date in RFC 3339 format |
+| `status` | string | No | New status: "needsAction" or "completed" |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `id` | string | Task ID |
+| `title` | string | Task title |
+| `notes` | string | Task notes |
+| `status` | string | Task status \(needsAction or completed\) |
+| `due` | string | Due date |
+| `updated` | string | Last modification time |
+| `selfLink` | string | URL for the task |
+| `webViewLink` | string | Link to task in Google Tasks UI |
+| `parent` | string | Parent task ID |
+| `position` | string | Position among sibling tasks |
+| `completed` | string | Completion date |
+| `deleted` | boolean | Whether the task is deleted |
+
+### `google_tasks_delete`
+
+Delete a task from a Google Tasks list
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `taskListId` | string | No | Task list ID \(defaults to primary task list "@default"\) |
+| `taskId` | string | Yes | The ID of the task to delete |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `taskId` | string | Deleted task ID |
+| `deleted` | boolean | Whether deletion was successful |
+
+### `google_tasks_list_task_lists`
+
+Retrieve all task lists for the authenticated user
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `maxResults` | number | No | Maximum number of task lists to return \(default 1000, max 1000\) |
+| `pageToken` | string | No | Token for pagination |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `taskLists` | json | Array of task lists with id, title, updated, and selfLink |
+| `nextPageToken` | string | Token for retrieving the next page of results |
+
+
@@ -48,6 +48,7 @@
    "google_search",
    "google_sheets",
    "google_slides",
+    "google_tasks",
    "google_translate",
    "google_vault",
    "grafana",
@@ -40,6 +40,7 @@ const SCOPE_DESCRIPTIONS: Record<string, string> = {
  'https://www.googleapis.com/auth/drive.file': 'View and manage Google Drive files',
  'https://www.googleapis.com/auth/drive': 'Access all Google Drive files',
  'https://www.googleapis.com/auth/calendar': 'View and manage calendar',
+  'https://www.googleapis.com/auth/tasks': 'Create, read, update, and delete Google Tasks',
  'https://www.googleapis.com/auth/userinfo.email': 'View email address',
  'https://www.googleapis.com/auth/userinfo.profile': 'View basic profile info',
  'https://www.googleapis.com/auth/forms.body': 'View and manage Google Forms',
@@ -0,0 +1,262 @@
+import { GoogleTasksIcon } from '@/components/icons'
+import type { BlockConfig } from '@/blocks/types'
+import { AuthMode } from '@/blocks/types'
+import type { GoogleTasksResponse } from '@/tools/google_tasks/types'
+
+export const GoogleTasksBlock: BlockConfig<GoogleTasksResponse> = {
+  type: 'google_tasks',
+  name: 'Google Tasks',
+  description: 'Manage Google Tasks',
+  longDescription:
+    'Integrate Google Tasks into your workflow. Create, read, update, delete, and list tasks and task lists.',
+  docsLink: 'https://docs.sim.ai/tools/google_tasks',
+  category: 'tools',
+  bgColor: '#E0E0E0',
+  icon: GoogleTasksIcon,
+  authMode: AuthMode.OAuth,
+
+  subBlocks: [
+    {
+      id: 'operation',
+      title: 'Operation',
+      type: 'dropdown',
+      options: [
+        { label: 'Create Task', id: 'create' },
+        { label: 'List Tasks', id: 'list' },
+        { label: 'Get Task', id: 'get' },
+        { label: 'Update Task', id: 'update' },
+        { label: 'Delete Task', id: 'delete' },
+        { label: 'List Task Lists', id: 'list_task_lists' },
+      ],
+      value: () => 'create',
+    },
+    {
+      id: 'credential',
+      title: 'Google Tasks Account',
+      type: 'oauth-input',
+      canonicalParamId: 'oauthCredential',
+      mode: 'basic',
+      required: true,
+      serviceId: 'google-tasks',
+      requiredScopes: ['https://www.googleapis.com/auth/tasks'],
+      placeholder: 'Select Google Tasks account',
+    },
+    {
+      id: 'manualCredential',
+      title: 'Google Tasks Account',
+      type: 'short-input',
+      canonicalParamId: 'oauthCredential',
+      mode: 'advanced',
+      placeholder: 'Enter credential ID',
+      required: true,
+    },
+
+    // Task List ID - shown for all task operations (not list_task_lists)
+    {
+      id: 'taskListId',
+      title: 'Task List ID',
+      type: 'short-input',
+      placeholder: 'Task list ID (leave empty for default list)',
+      condition: { field: 'operation', value: 'list_task_lists', not: true },
+    },
+
+    // Create Task Fields
+    {
+      id: 'title',
+      title: 'Title',
+      type: 'short-input',
+      placeholder: 'Buy groceries',
+      condition: { field: 'operation', value: 'create' },
+      required: { field: 'operation', value: 'create' },
+    },
+    {
+      id: 'notes',
+      title: 'Notes',
+      type: 'long-input',
+      placeholder: 'Task notes or description',
+      condition: { field: 'operation', value: 'create' },
+    },
+    {
+      id: 'due',
+      title: 'Due Date',
+      type: 'short-input',
+      placeholder: '2025-06-03T00:00:00.000Z',
+      condition: { field: 'operation', value: 'create' },
+      wandConfig: {
+        enabled: true,
+        prompt: `Generate an RFC 3339 timestamp in UTC based on the user's description.
+The timestamp should be in the format: YYYY-MM-DDTHH:MM:SS.000Z (UTC timezone).
+Examples:
+- "tomorrow" -> Calculate tomorrow's date at 00:00:00.000Z
+- "next Friday" -> Calculate the next Friday's date at 00:00:00.000Z
+- "June 15" -> 2025-06-15T00:00:00.000Z
+
+Return ONLY the timestamp - no explanations, no extra text.`,
+      },
+    },
+    {
+      id: 'status',
+      title: 'Status',
+      type: 'dropdown',
+      condition: { field: 'operation', value: 'create' },
+      options: [
+        { label: 'Needs Action', id: 'needsAction' },
+        { label: 'Completed', id: 'completed' },
+      ],
+    },
+
+    // Get/Update/Delete Task Fields - Task ID
+    {
+      id: 'taskId',
+      title: 'Task ID',
+      type: 'short-input',
+      placeholder: 'Task ID',
+      condition: { field: 'operation', value: ['get', 'update', 'delete'] },
+      required: { field: 'operation', value: ['get', 'update', 'delete'] },
+    },
+
+    // Update Task Fields
+    {
+      id: 'title',
+      title: 'New Title',
+      type: 'short-input',
+      placeholder: 'Updated task title',
+      condition: { field: 'operation', value: 'update' },
+    },
+    {
+      id: 'notes',
+      title: 'New Notes',
+      type: 'long-input',
+      placeholder: 'Updated task notes',
+      condition: { field: 'operation', value: 'update' },
+    },
+    {
+      id: 'due',
+      title: 'New Due Date',
+      type: 'short-input',
+      placeholder: '2025-06-03T00:00:00.000Z',
+      condition: { field: 'operation', value: 'update' },
+      wandConfig: {
+        enabled: true,
+        prompt: `Generate an RFC 3339 timestamp in UTC based on the user's description.
+The timestamp should be in the format: YYYY-MM-DDTHH:MM:SS.000Z (UTC timezone).
+Examples:
+- "tomorrow" -> Calculate tomorrow's date at 00:00:00.000Z
+- "next Friday" -> Calculate the next Friday's date at 00:00:00.000Z
+- "June 15" -> 2025-06-15T00:00:00.000Z
+
+Return ONLY the timestamp - no explanations, no extra text.`,
+      },
+    },
+    {
+      id: 'status',
+      title: 'New Status',
+      type: 'dropdown',
+      condition: { field: 'operation', value: 'update' },
+      options: [
+        { label: 'Needs Action', id: 'needsAction' },
+        { label: 'Completed', id: 'completed' },
+      ],
+    },
+
+    // List Tasks Fields
+    {
+      id: 'maxResults',
+      title: 'Max Results',
+      type: 'short-input',
+      placeholder: '20',
+      condition: { field: 'operation', value: ['list', 'list_task_lists'] },
+    },
+    {
+      id: 'showCompleted',
+      title: 'Show Completed',
+      type: 'dropdown',
+      condition: { field: 'operation', value: 'list' },
+      options: [
+        { label: 'Yes', id: 'true' },
+        { label: 'No', id: 'false' },
+      ],
+    },
+  ],
+
+  tools: {
+    access: [
+      'google_tasks_create',
+      'google_tasks_list',
+      'google_tasks_get',
+      'google_tasks_update',
+      'google_tasks_delete',
+      'google_tasks_list_task_lists',
+    ],
+    config: {
+      tool: (params) => {
+        switch (params.operation) {
+          case 'create':
+            return 'google_tasks_create'
+          case 'list':
+            return 'google_tasks_list'
+          case 'get':
+            return 'google_tasks_get'
+          case 'update':
+            return 'google_tasks_update'
+          case 'delete':
+            return 'google_tasks_delete'
+          case 'list_task_lists':
+            return 'google_tasks_list_task_lists'
+          default:
+            throw new Error(`Invalid Google Tasks operation: ${params.operation}`)
+        }
+      },
+      params: (params) => {
+        const { oauthCredential, operation, showCompleted, maxResults, ...rest } = params
+
+        const processedParams: Record<string, unknown> = { ...rest }
+
+        if (maxResults && typeof maxResults === 'string') {
+          processedParams.maxResults = Number.parseInt(maxResults, 10)
+        }
+
+        if (showCompleted !== undefined) {
+          processedParams.showCompleted = showCompleted === 'true'
+        }
+
+        return {
+          oauthCredential,
+          ...processedParams,
+        }
+      },
+    },
+  },
+
+  inputs: {
+    operation: { type: 'string', description: 'Operation to perform' },
+    oauthCredential: { type: 'string', description: 'Google Tasks access token' },
+    taskListId: { type: 'string', description: 'Task list identifier' },
+    title: { type: 'string', description: 'Task title' },
+    notes: { type: 'string', description: 'Task notes' },
+    due: { type: 'string', description: 'Task due date' },
+    status: { type: 'string', description: 'Task status' },
+    taskId: { type: 'string', description: 'Task identifier' },
+    maxResults: { type: 'string', description: 'Maximum number of results' },
+    showCompleted: { type: 'string', description: 'Whether to show completed tasks' },
+  },
+
+  outputs: {
+    id: { type: 'string', description: 'Task ID' },
+    title: { type: 'string', description: 'Task title' },
+    notes: { type: 'string', description: 'Task notes' },
+    status: { type: 'string', description: 'Task status' },
+    due: { type: 'string', description: 'Due date' },
+    updated: { type: 'string', description: 'Last modification time' },
+    selfLink: { type: 'string', description: 'URL for the task' },
+    webViewLink: { type: 'string', description: 'Link to task in Google Tasks UI' },
+    parent: { type: 'string', description: 'Parent task ID' },
+    position: { type: 'string', description: 'Position among sibling tasks' },
+    completed: { type: 'string', description: 'Completion date' },
+    deleted: { type: 'boolean', description: 'Whether the task is deleted' },
+    tasks: { type: 'json', description: 'Array of tasks (list operation)' },
+    taskLists: { type: 'json', description: 'Array of task lists (list_task_lists operation)' },
+    taskId: { type: 'string', description: 'Deleted task ID (delete operation)' },
+    nextPageToken: { type: 'string', description: 'Token for next page of results' },
+  },
+}
@@ -53,6 +53,7 @@ import { GoogleGroupsBlock } from '@/blocks/blocks/google_groups'
 import { GoogleMapsBlock } from '@/blocks/blocks/google_maps'
 import { GoogleSheetsBlock, GoogleSheetsV2Block } from '@/blocks/blocks/google_sheets'
 import { GoogleSlidesBlock, GoogleSlidesV2Block } from '@/blocks/blocks/google_slides'
+import { GoogleTasksBlock } from '@/blocks/blocks/google_tasks'
 import { GoogleTranslateBlock } from '@/blocks/blocks/google_translate'
 import { GoogleVaultBlock } from '@/blocks/blocks/google_vault'
 import { GrafanaBlock } from '@/blocks/blocks/grafana'
@@ -236,6 +237,7 @@ export const registry: Record<string, BlockConfig> = {
  google_forms: GoogleFormsBlock,
  google_groups: GoogleGroupsBlock,
  google_maps: GoogleMapsBlock,
+  google_tasks: GoogleTasksBlock,
  google_translate: GoogleTranslateBlock,
  gong: GongBlock,
  google_search: GoogleSearchBlock,
@@ -1302,6 +1302,21 @@ export function GoogleCalendarIcon(props: SVGProps<SVGSVGElement>) {
  )
 }

+export function GoogleTasksIcon(props: SVGProps<SVGSVGElement>) {
+  return (
+    <svg {...props} viewBox='0 0 527.1 500' xmlns='http://www.w3.org/2000/svg'>
+      <polygon
+        fill='#0066DA'
+        points='410.4,58.3 368.8,81.2 348.2,120.6 368.8,168.8 407.8,211 450,187.5 475.9,142.8 450,87.5'
+      />
+      <path
+        fill='#2684FC'
+        d='M249.3,219.4l98.9-98.9c29.1,22.1,50.5,53.8,59.6,90.4L272.1,346.7c-12.2,12.2-32,12.2-44.2,0l-91.5-91.5 c-9.8-9.8-9.8-25.6,0-35.3l39-39c9.8-9.8,25.6-9.8,35.3,0L249.3,219.4z M519.8,63.6l-39.7-39.7c-9.7-9.7-25.6-9.7-35.3,0 l-34.4,34.4c27.5,23,49.9,51.8,65.5,84.5l43.9-43.9C529.6,89.2,529.6,73.3,519.8,63.6z M412.5,250c0,89.8-72.8,162.5-162.5,162.5 S87.5,339.8,87.5,250S160.2,87.5,250,87.5c36.9,0,70.9,12.3,98.2,33.1l62.2-62.2C367,21.9,311.1,0,250,0C111.9,0,0,111.9,0,250 s111.9,250,250,250s250-111.9,250-250c0-38.3-8.7-74.7-24.1-107.2L407.8,211C410.8,223.5,412.5,236.6,412.5,250z'
+      />
+    </svg>
+  )
+}
+
 export function SupabaseIcon(props: SVGProps<SVGSVGElement>) {
  const id = useId()
  const gradient0 = `supabase_paint0_${id}`
@@ -487,6 +487,7 @@ export const auth = betterAuth({
        'google-bigquery',
        'google-vault',
        'google-groups',
+        'google-tasks',
        'vertex-ai',
        'github-repo',
        'microsoft-dataverse',
@@ -1191,6 +1192,46 @@ export const auth = betterAuth({
          },
        },

+        {
+          providerId: 'google-tasks',
+          clientId: env.GOOGLE_CLIENT_ID as string,
+          clientSecret: env.GOOGLE_CLIENT_SECRET as string,
+          discoveryUrl: 'https://accounts.google.com/.well-known/openid-configuration',
+          accessType: 'offline',
+          scopes: [
+            'https://www.googleapis.com/auth/userinfo.email',
+            'https://www.googleapis.com/auth/userinfo.profile',
+            'https://www.googleapis.com/auth/tasks',
+          ],
+          prompt: 'consent',
+          redirectURI: `${getBaseUrl()}/api/auth/oauth2/callback/google-tasks`,
+          getUserInfo: async (tokens) => {
+            try {
+              const response = await fetch('https://openidconnect.googleapis.com/v1/userinfo', {
+                headers: { Authorization: `Bearer ${tokens.accessToken}` },
+              })
+              if (!response.ok) {
+                logger.error('Failed to fetch Google user info', { status: response.status })
+                throw new Error(`Failed to fetch Google user info: ${response.statusText}`)
+              }
+              const profile = await response.json()
+              const now = new Date()
+              return {
+                id: `${profile.sub}-${crypto.randomUUID()}`,
+                name: profile.name || 'Google User',
+                email: profile.email,
+                image: profile.picture || undefined,
+                emailVerified: profile.email_verified || false,
+                createdAt: now,
+                updatedAt: now,
+              }
+            } catch (error) {
+              logger.error('Error in Google getUserInfo', { error })
+              throw error
+            }
+          },
+        },
+
        {
          providerId: 'vertex-ai',
          clientId: env.GOOGLE_CLIENT_ID as string,
@@ -16,6 +16,7 @@ import {
  GoogleGroupsIcon,
  GoogleIcon,
  GoogleSheetsIcon,
+  GoogleTasksIcon,
  HubspotIcon,
  JiraIcon,
  LinearIcon,
@@ -128,6 +129,14 @@ export const OAUTH_PROVIDERS: Record<string, OAuthProviderConfig> = {
        baseProviderIcon: GoogleIcon,
        scopes: ['https://www.googleapis.com/auth/bigquery'],
      },
+      'google-tasks': {
+        name: 'Google Tasks',
+        description: 'Create, manage, and organize tasks with Google Tasks.',
+        providerId: 'google-tasks',
+        icon: GoogleTasksIcon,
+        baseProviderIcon: GoogleIcon,
+        scopes: ['https://www.googleapis.com/auth/tasks'],
+      },
      'google-vault': {
        name: 'Google Vault',
        description: 'Search, export, and manage matters/holds via Google Vault.',
@@ -8,6 +8,7 @@ export type OAuthProvider =
  | 'google-sheets'
  | 'google-calendar'
  | 'google-bigquery'
+  | 'google-tasks'
  | 'google-vault'
  | 'google-forms'
  | 'google-groups'
@@ -54,6 +55,7 @@ export type OAuthService =
  | 'google-sheets'
  | 'google-calendar'
  | 'google-bigquery'
+  | 'google-tasks'
  | 'google-vault'
  | 'google-forms'
  | 'google-groups'
@@ -0,0 +1,133 @@
+import type { GoogleTasksCreateParams, GoogleTasksResponse } from '@/tools/google_tasks/types'
+import { TASKS_API_BASE } from '@/tools/google_tasks/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const createTool: ToolConfig<GoogleTasksCreateParams, GoogleTasksResponse> = {
+  id: 'google_tasks_create',
+  name: 'Google Tasks Create Task',
+  description: 'Create a new task in a Google Tasks list',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'google-tasks',
+  },
+
+  params: {
+    accessToken: {
+      type: 'string',
+      required: true,
+      visibility: 'hidden',
+      description: 'Google Tasks OAuth access token',
+    },
+    taskListId: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Task list ID (defaults to primary task list "@default")',
+    },
+    title: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Title of the task (max 1024 characters)',
+    },
+    notes: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Notes/description for the task (max 8192 characters)',
+    },
+    due: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Due date in RFC 3339 format (e.g., 2025-06-03T00:00:00.000Z)',
+    },
+    status: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Task status: "needsAction" or "completed"',
+    },
+    parent: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Parent task ID to create this task as a subtask. Omit for top-level tasks.',
+    },
+    previous: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description:
+        'Previous sibling task ID to position after. Omit to place first among siblings.',
+    },
+  },
+
+  request: {
+    url: (params) => {
+      const taskListId = params.taskListId || '@default'
+      const queryParams = new URLSearchParams()
+      if (params.parent) queryParams.set('parent', params.parent)
+      if (params.previous) queryParams.set('previous', params.previous)
+      const qs = queryParams.toString()
+      return `${TASKS_API_BASE}/lists/${encodeURIComponent(taskListId)}/tasks${qs ? `?${qs}` : ''}`
+    },
+    method: 'POST',
+    headers: (params) => ({
+      Authorization: `Bearer ${params.accessToken}`,
+      'Content-Type': 'application/json',
+    }),
+    body: (params) => {
+      const body: Record<string, unknown> = {
+        title: params.title,
+      }
+      if (params.notes) body.notes = params.notes
+      if (params.due) body.due = params.due
+      if (params.status) body.status = params.status
+      return body
+    },
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!response.ok) {
+      throw new Error(data.error?.message ?? 'Failed to create task')
+    }
+
+    return {
+      success: true,
+      output: {
+        id: data.id ?? null,
+        title: data.title ?? null,
+        notes: data.notes ?? null,
+        status: data.status ?? null,
+        due: data.due ?? null,
+        updated: data.updated ?? null,
+        selfLink: data.selfLink ?? null,
+        webViewLink: data.webViewLink ?? null,
+        parent: data.parent ?? null,
+        position: data.position ?? null,
+        completed: data.completed ?? null,
+        deleted: data.deleted ?? null,
+      },
+    }
+  },
+
+  outputs: {
+    id: { type: 'string', description: 'Task ID' },
+    title: { type: 'string', description: 'Task title' },
+    notes: { type: 'string', description: 'Task notes', optional: true },
+    status: { type: 'string', description: 'Task status (needsAction or completed)' },
+    due: { type: 'string', description: 'Due date', optional: true },
+    updated: { type: 'string', description: 'Last modification time' },
+    selfLink: { type: 'string', description: 'URL for the task' },
+    webViewLink: { type: 'string', description: 'Link to task in Google Tasks UI', optional: true },
+    parent: { type: 'string', description: 'Parent task ID', optional: true },
+    position: { type: 'string', description: 'Position among sibling tasks' },
+    completed: { type: 'string', description: 'Completion date', optional: true },
+    deleted: { type: 'boolean', description: 'Whether the task is deleted', optional: true },
+  },
+}
@@ -0,0 +1,67 @@
+import type { GoogleTasksDeleteParams, GoogleTasksDeleteResponse } from '@/tools/google_tasks/types'
+import { TASKS_API_BASE } from '@/tools/google_tasks/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const deleteTool: ToolConfig<GoogleTasksDeleteParams, GoogleTasksDeleteResponse> = {
+  id: 'google_tasks_delete',
+  name: 'Google Tasks Delete Task',
+  description: 'Delete a task from a Google Tasks list',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'google-tasks',
+  },
+
+  params: {
+    accessToken: {
+      type: 'string',
+      required: true,
+      visibility: 'hidden',
+      description: 'Google Tasks OAuth access token',
+    },
+    taskListId: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Task list ID (defaults to primary task list "@default")',
+    },
+    taskId: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'The ID of the task to delete',
+    },
+  },
+
+  request: {
+    url: (params) => {
+      const taskListId = params.taskListId || '@default'
+      return `${TASKS_API_BASE}/lists/${encodeURIComponent(taskListId)}/tasks/${encodeURIComponent(params.taskId)}`
+    },
+    method: 'DELETE',
+    headers: (params) => ({
+      Authorization: `Bearer ${params.accessToken}`,
+    }),
+  },
+
+  transformResponse: async (response: Response, params) => {
+    if (response.status === 204 || response.ok) {
+      return {
+        success: true,
+        output: {
+          taskId: params?.taskId || '',
+          deleted: true,
+        },
+      }
+    }
+
+    const data = await response.json()
+    throw new Error(data.error?.message ?? 'Failed to delete task')
+  },
+
+  outputs: {
+    taskId: { type: 'string', description: 'Deleted task ID' },
+    deleted: { type: 'boolean', description: 'Whether deletion was successful' },
+  },
+}
@@ -0,0 +1,88 @@
+import type { GoogleTasksGetParams, GoogleTasksResponse } from '@/tools/google_tasks/types'
+import { TASKS_API_BASE } from '@/tools/google_tasks/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const getTool: ToolConfig<GoogleTasksGetParams, GoogleTasksResponse> = {
+  id: 'google_tasks_get',
+  name: 'Google Tasks Get Task',
+  description: 'Retrieve a specific task by ID from a Google Tasks list',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'google-tasks',
+  },
+
+  params: {
+    accessToken: {
+      type: 'string',
+      required: true,
+      visibility: 'hidden',
+      description: 'Google Tasks OAuth access token',
+    },
+    taskListId: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Task list ID (defaults to primary task list "@default")',
+    },
+    taskId: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'The ID of the task to retrieve',
+    },
+  },
+
+  request: {
+    url: (params) => {
+      const taskListId = params.taskListId || '@default'
+      return `${TASKS_API_BASE}/lists/${encodeURIComponent(taskListId)}/tasks/${encodeURIComponent(params.taskId)}`
+    },
+    method: 'GET',
+    headers: (params) => ({
+      Authorization: `Bearer ${params.accessToken}`,
+    }),
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!response.ok) {
+      throw new Error(data.error?.message ?? 'Failed to get task')
+    }
+
+    return {
+      success: true,
+      output: {
+        id: data.id ?? null,
+        title: data.title ?? null,
+        notes: data.notes ?? null,
+        status: data.status ?? null,
+        due: data.due ?? null,
+        updated: data.updated ?? null,
+        selfLink: data.selfLink ?? null,
+        webViewLink: data.webViewLink ?? null,
+        parent: data.parent ?? null,
+        position: data.position ?? null,
+        completed: data.completed ?? null,
+        deleted: data.deleted ?? null,
+      },
+    }
+  },
+
+  outputs: {
+    id: { type: 'string', description: 'Task ID' },
+    title: { type: 'string', description: 'Task title' },
+    notes: { type: 'string', description: 'Task notes', optional: true },
+    status: { type: 'string', description: 'Task status (needsAction or completed)' },
+    due: { type: 'string', description: 'Due date', optional: true },
+    updated: { type: 'string', description: 'Last modification time' },
+    selfLink: { type: 'string', description: 'URL for the task' },
+    webViewLink: { type: 'string', description: 'Link to task in Google Tasks UI', optional: true },
+    parent: { type: 'string', description: 'Parent task ID', optional: true },
+    position: { type: 'string', description: 'Position among sibling tasks' },
+    completed: { type: 'string', description: 'Completion date', optional: true },
+    deleted: { type: 'boolean', description: 'Whether the task is deleted', optional: true },
+  },
+}
@@ -0,0 +1,6 @@
+export { createTool as googleTasksCreateTool } from '@/tools/google_tasks/create'
+export { deleteTool as googleTasksDeleteTool } from '@/tools/google_tasks/delete'
+export { getTool as googleTasksGetTool } from '@/tools/google_tasks/get'
+export { listTool as googleTasksListTool } from '@/tools/google_tasks/list'
+export { listTaskListsTool as googleTasksListTaskListsTool } from '@/tools/google_tasks/list_task_lists'
+export { updateTool as googleTasksUpdateTool } from '@/tools/google_tasks/update'
@@ -0,0 +1,214 @@
+import type { GoogleTasksListParams, GoogleTasksListResponse } from '@/tools/google_tasks/types'
+import { TASKS_API_BASE } from '@/tools/google_tasks/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const listTool: ToolConfig<GoogleTasksListParams, GoogleTasksListResponse> = {
+  id: 'google_tasks_list',
+  name: 'Google Tasks List Tasks',
+  description: 'List all tasks in a Google Tasks list',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'google-tasks',
+  },
+
+  params: {
+    accessToken: {
+      type: 'string',
+      required: true,
+      visibility: 'hidden',
+      description: 'Google Tasks OAuth access token',
+    },
+    taskListId: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Task list ID (defaults to primary task list "@default")',
+    },
+    maxResults: {
+      type: 'number',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Maximum number of tasks to return (default 20, max 100)',
+    },
+    pageToken: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Token for pagination',
+    },
+    showCompleted: {
+      type: 'boolean',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Whether to show completed tasks (default true)',
+    },
+    showDeleted: {
+      type: 'boolean',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Whether to show deleted tasks (default false)',
+    },
+    showHidden: {
+      type: 'boolean',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Whether to show hidden tasks (default false)',
+    },
+    dueMin: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Lower bound for due date filter (RFC 3339 timestamp)',
+    },
+    dueMax: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Upper bound for due date filter (RFC 3339 timestamp)',
+    },
+    completedMin: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Lower bound for task completion date (RFC 3339 timestamp)',
+    },
+    completedMax: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Upper bound for task completion date (RFC 3339 timestamp)',
+    },
+    updatedMin: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Lower bound for last modification time (RFC 3339 timestamp)',
+    },
+  },
+
+  request: {
+    url: (params) => {
+      const taskListId = params.taskListId || '@default'
+      const queryParams = new URLSearchParams()
+      if (params.maxResults) queryParams.set('maxResults', String(params.maxResults))
+      if (params.pageToken) queryParams.set('pageToken', params.pageToken)
+      if (params.showCompleted !== undefined)
+        queryParams.set('showCompleted', String(params.showCompleted))
+      if (params.showDeleted !== undefined)
+        queryParams.set('showDeleted', String(params.showDeleted))
+      if (params.showHidden !== undefined) queryParams.set('showHidden', String(params.showHidden))
+      if (params.dueMin) queryParams.set('dueMin', params.dueMin)
+      if (params.dueMax) queryParams.set('dueMax', params.dueMax)
+      if (params.completedMin) queryParams.set('completedMin', params.completedMin)
+      if (params.completedMax) queryParams.set('completedMax', params.completedMax)
+      if (params.updatedMin) queryParams.set('updatedMin', params.updatedMin)
+      const qs = queryParams.toString()
+      return `${TASKS_API_BASE}/lists/${encodeURIComponent(taskListId)}/tasks${qs ? `?${qs}` : ''}`
+    },
+    method: 'GET',
+    headers: (params) => ({
+      Authorization: `Bearer ${params.accessToken}`,
+    }),
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!response.ok) {
+      throw new Error(data.error?.message ?? 'Failed to list tasks')
+    }
+
+    const items = data.items ?? []
+
+    return {
+      success: true,
+      output: {
+        tasks: items.map((item: Record<string, unknown>) => ({
+          id: (item.id as string) ?? null,
+          title: (item.title as string) ?? null,
+          notes: (item.notes as string) ?? null,
+          status: (item.status as string) ?? null,
+          due: (item.due as string) ?? null,
+          completed: (item.completed as string) ?? null,
+          updated: (item.updated as string) ?? null,
+          selfLink: (item.selfLink as string) ?? null,
+          webViewLink: (item.webViewLink as string) ?? null,
+          parent: (item.parent as string) ?? null,
+          position: (item.position as string) ?? null,
+          hidden: (item.hidden as boolean) ?? null,
+          deleted: (item.deleted as boolean) ?? null,
+          links: Array.isArray(item.links)
+            ? (item.links as Array<Record<string, string>>).map((link) => ({
+                type: link.type ?? '',
+                description: link.description ?? '',
+                link: link.link ?? '',
+              }))
+            : [],
+        })),
+        nextPageToken: data.nextPageToken ?? null,
+      },
+    }
+  },
+
+  outputs: {
+    tasks: {
+      type: 'array',
+      description: 'List of tasks',
+      items: {
+        type: 'object',
+        properties: {
+          id: { type: 'string', description: 'Task identifier' },
+          title: { type: 'string', description: 'Title of the task' },
+          notes: { type: 'string', description: 'Notes/description for the task', optional: true },
+          status: {
+            type: 'string',
+            description: 'Task status: "needsAction" or "completed"',
+          },
+          due: { type: 'string', description: 'Due date (RFC 3339 timestamp)', optional: true },
+          completed: {
+            type: 'string',
+            description: 'Completion date (RFC 3339 timestamp)',
+            optional: true,
+          },
+          updated: { type: 'string', description: 'Last modification time (RFC 3339 timestamp)' },
+          selfLink: { type: 'string', description: 'URL pointing to this task' },
+          webViewLink: {
+            type: 'string',
+            description: 'Link to task in Google Tasks UI',
+            optional: true,
+          },
+          parent: { type: 'string', description: 'Parent task identifier', optional: true },
+          position: {
+            type: 'string',
+            description: 'Position among sibling tasks (string-based ordering)',
+          },
+          hidden: { type: 'boolean', description: 'Whether the task is hidden', optional: true },
+          deleted: { type: 'boolean', description: 'Whether the task is deleted', optional: true },
+          links: {
+            type: 'array',
+            description: 'Collection of links associated with the task',
+            optional: true,
+            items: {
+              type: 'object',
+              properties: {
+                type: {
+                  type: 'string',
+                  description: 'Link type (e.g., "email", "generic", "chat_message")',
+                },
+                description: { type: 'string', description: 'Link description' },
+                link: { type: 'string', description: 'The URL' },
+              },
+            },
+          },
+        },
+      },
+    },
+    nextPageToken: {
+      type: 'string',
+      description: 'Token for retrieving the next page of results',
+      optional: true,
+    },
+  },
+}
@@ -0,0 +1,103 @@
+import type {
+  GoogleTasksListTaskListsParams,
+  GoogleTasksListTaskListsResponse,
+} from '@/tools/google_tasks/types'
+import { TASKS_API_BASE } from '@/tools/google_tasks/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const listTaskListsTool: ToolConfig<
+  GoogleTasksListTaskListsParams,
+  GoogleTasksListTaskListsResponse
+> = {
+  id: 'google_tasks_list_task_lists',
+  name: 'Google Tasks List Task Lists',
+  description: 'Retrieve all task lists for the authenticated user',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'google-tasks',
+  },
+
+  params: {
+    accessToken: {
+      type: 'string',
+      required: true,
+      visibility: 'hidden',
+      description: 'Google Tasks OAuth access token',
+    },
+    maxResults: {
+      type: 'number',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Maximum number of task lists to return (default 20, max 100)',
+    },
+    pageToken: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Token for pagination',
+    },
+  },
+
+  request: {
+    url: (params) => {
+      const queryParams = new URLSearchParams()
+      if (params.maxResults) queryParams.set('maxResults', String(params.maxResults))
+      if (params.pageToken) queryParams.set('pageToken', params.pageToken)
+      const qs = queryParams.toString()
+      return `${TASKS_API_BASE}/users/@me/lists${qs ? `?${qs}` : ''}`
+    },
+    method: 'GET',
+    headers: (params) => ({
+      Authorization: `Bearer ${params.accessToken}`,
+    }),
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!response.ok) {
+      throw new Error(data.error?.message ?? 'Failed to list task lists')
+    }
+
+    const items = data.items ?? []
+
+    return {
+      success: true,
+      output: {
+        taskLists: items.map((item: Record<string, unknown>) => ({
+          id: (item.id as string) ?? null,
+          title: (item.title as string) ?? null,
+          updated: (item.updated as string) ?? null,
+          selfLink: (item.selfLink as string) ?? null,
+        })),
+        nextPageToken: data.nextPageToken ?? null,
+      },
+    }
+  },
+
+  outputs: {
+    taskLists: {
+      type: 'array',
+      description: 'List of task lists',
+      items: {
+        type: 'object',
+        properties: {
+          id: { type: 'string', description: 'Task list identifier' },
+          title: { type: 'string', description: 'Title of the task list' },
+          updated: {
+            type: 'string',
+            description: 'Last modification time (RFC 3339 timestamp)',
+          },
+          selfLink: { type: 'string', description: 'URL pointing to this task list' },
+        },
+      },
+    },
+    nextPageToken: {
+      type: 'string',
+      description: 'Token for retrieving the next page of results',
+      optional: true,
+    },
+  },
+}
@@ -0,0 +1,113 @@
+import type { ToolResponse } from '@/tools/types'
+
+export const TASKS_API_BASE = 'https://tasks.googleapis.com/tasks/v1'
+
+export interface BaseGoogleTasksParams {
+  accessToken: string
+}
+
+export interface GoogleTasksListTaskListsParams extends BaseGoogleTasksParams {
+  maxResults?: number
+  pageToken?: string
+}
+
+export interface GoogleTasksCreateParams extends BaseGoogleTasksParams {
+  taskListId?: string
+  title: string
+  notes?: string
+  due?: string
+  status?: string
+  parent?: string
+  previous?: string
+}
+
+export interface GoogleTasksListParams extends BaseGoogleTasksParams {
+  taskListId?: string
+  maxResults?: number
+  pageToken?: string
+  showCompleted?: boolean
+  showDeleted?: boolean
+  showHidden?: boolean
+  dueMin?: string
+  dueMax?: string
+  completedMin?: string
+  completedMax?: string
+  updatedMin?: string
+}
+
+export interface GoogleTasksGetParams extends BaseGoogleTasksParams {
+  taskListId?: string
+  taskId: string
+}
+
+export interface GoogleTasksUpdateParams extends BaseGoogleTasksParams {
+  taskListId?: string
+  taskId: string
+  title?: string
+  notes?: string
+  due?: string
+  status?: string
+}
+
+export interface GoogleTasksDeleteParams extends BaseGoogleTasksParams {
+  taskListId?: string
+  taskId: string
+}
+
+export interface GoogleTasksResponse extends ToolResponse {
+  output: {
+    id: string | null
+    title: string | null
+    notes: string | null
+    status: string | null
+    due: string | null
+    updated: string | null
+    selfLink: string | null
+    webViewLink: string | null
+    parent: string | null
+    position: string | null
+    completed: string | null
+    deleted: boolean | null
+  }
+}
+
+export interface GoogleTasksListResponse extends ToolResponse {
+  output: {
+    tasks: Array<{
+      id: string | null
+      title: string | null
+      notes: string | null
+      status: string | null
+      due: string | null
+      completed: string | null
+      updated: string | null
+      selfLink: string | null
+      webViewLink: string | null
+      parent: string | null
+      position: string | null
+      hidden: boolean | null
+      deleted: boolean | null
+      links: Array<{ type: string; description: string; link: string }>
+    }>
+    nextPageToken: string | null
+  }
+}
+
+export interface GoogleTasksListTaskListsResponse extends ToolResponse {
+  output: {
+    taskLists: Array<{
+      id: string | null
+      title: string | null
+      updated: string | null
+      selfLink: string | null
+    }>
+    nextPageToken: string | null
+  }
+}
+
+export interface GoogleTasksDeleteResponse extends ToolResponse {
+  output: {
+    taskId: string
+    deleted: boolean
+  }
+}
@@ -0,0 +1,121 @@
+import type { GoogleTasksResponse, GoogleTasksUpdateParams } from '@/tools/google_tasks/types'
+import { TASKS_API_BASE } from '@/tools/google_tasks/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const updateTool: ToolConfig<GoogleTasksUpdateParams, GoogleTasksResponse> = {
+  id: 'google_tasks_update',
+  name: 'Google Tasks Update Task',
+  description: 'Update an existing task in a Google Tasks list',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'google-tasks',
+  },
+
+  params: {
+    accessToken: {
+      type: 'string',
+      required: true,
+      visibility: 'hidden',
+      description: 'Google Tasks OAuth access token',
+    },
+    taskListId: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Task list ID (defaults to primary task list "@default")',
+    },
+    taskId: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'The ID of the task to update',
+    },
+    title: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'New title for the task',
+    },
+    notes: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'New notes for the task',
+    },
+    due: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'New due date in RFC 3339 format',
+    },
+    status: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'New status: "needsAction" or "completed"',
+    },
+  },
+
+  request: {
+    url: (params) => {
+      const taskListId = params.taskListId || '@default'
+      return `${TASKS_API_BASE}/lists/${encodeURIComponent(taskListId)}/tasks/${encodeURIComponent(params.taskId)}`
+    },
+    method: 'PATCH',
+    headers: (params) => ({
+      Authorization: `Bearer ${params.accessToken}`,
+      'Content-Type': 'application/json',
+    }),
+    body: (params) => {
+      const body: Record<string, unknown> = {}
+      if (params.title !== undefined) body.title = params.title
+      if (params.notes !== undefined) body.notes = params.notes
+      if (params.due !== undefined) body.due = params.due
+      if (params.status !== undefined) body.status = params.status
+      return body
+    },
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!response.ok) {
+      throw new Error(data.error?.message ?? 'Failed to update task')
+    }
+
+    return {
+      success: true,
+      output: {
+        id: data.id ?? null,
+        title: data.title ?? null,
+        notes: data.notes ?? null,
+        status: data.status ?? null,
+        due: data.due ?? null,
+        updated: data.updated ?? null,
+        selfLink: data.selfLink ?? null,
+        webViewLink: data.webViewLink ?? null,
+        parent: data.parent ?? null,
+        position: data.position ?? null,
+        completed: data.completed ?? null,
+        deleted: data.deleted ?? null,
+      },
+    }
+  },
+
+  outputs: {
+    id: { type: 'string', description: 'Task ID' },
+    title: { type: 'string', description: 'Task title' },
+    notes: { type: 'string', description: 'Task notes', optional: true },
+    status: { type: 'string', description: 'Task status (needsAction or completed)' },
+    due: { type: 'string', description: 'Due date', optional: true },
+    updated: { type: 'string', description: 'Last modification time' },
+    selfLink: { type: 'string', description: 'URL for the task' },
+    webViewLink: { type: 'string', description: 'Link to task in Google Tasks UI', optional: true },
+    parent: { type: 'string', description: 'Parent task ID', optional: true },
+    position: { type: 'string', description: 'Position among sibling tasks' },
+    completed: { type: 'string', description: 'Completion date', optional: true },
+    deleted: { type: 'boolean', description: 'Whether the task is deleted', optional: true },
+  },
+}
@@ -776,6 +776,14 @@ import {
  googleSlidesUpdateSlidesPositionTool,
  googleSlidesWriteTool,
 } from '@/tools/google_slides'
+import {
+  googleTasksCreateTool,
+  googleTasksDeleteTool,
+  googleTasksGetTool,
+  googleTasksListTaskListsTool,
+  googleTasksListTool,
+  googleTasksUpdateTool,
+} from '@/tools/google_tasks'
 import { googleTranslateDetectTool, googleTranslateTool } from '@/tools/google_translate'
 import {
  createMattersExportTool,
@@ -2942,6 +2950,12 @@ export const tools: Record<string, ToolConfig> = {
  google_maps_speed_limits: googleMapsSpeedLimitsTool,
  google_maps_timezone: googleMapsTimezoneTool,
  google_maps_validate_address: googleMapsValidateAddressTool,
+  google_tasks_create: googleTasksCreateTool,
+  google_tasks_delete: googleTasksDeleteTool,
+  google_tasks_get: googleTasksGetTool,
+  google_tasks_list: googleTasksListTool,
+  google_tasks_list_task_lists: googleTasksListTaskListsTool,
+  google_tasks_update: googleTasksUpdateTool,
  google_translate_detect: googleTranslateDetectTool,
  google_translate_text: googleTranslateTool,
  google_sheets_read: googleSheetsReadTool,