fix(slack): fix canvas transformResponse type mismatch

Provide required output fields on error path to match SlackCanvasResponse type.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/docs/content/docs/en/tools/slack.mdx

@@ -1,6 +1,6 @@
 ---
 title: Slack
-description: Send, update, delete messages, send ephemeral messages, add or remove reactions in Slack or trigger workflows from Slack events
+description: Send, update, delete messages, add or remove reactions, manage canvases, get channel info and user presence in Slack
 ---
 
 import { BlockInfoCard } from "@/components/ui/block-info-card"
@@ -823,4 +823,104 @@ Remove an emoji reaction from a Slack message
 |   ↳ `timestamp` | string | Message timestamp |
 |   ↳ `reaction` | string | Emoji reaction name |
 
+### `slack_get_channel_info`
+
+Get detailed information about a Slack channel by its ID
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `authMethod` | string | No | Authentication method: oauth or bot_token |
+| `botToken` | string | No | Bot token for Custom Bot |
+| `channel` | string | Yes | Channel ID to get information about \(e.g., C1234567890\) |
+| `includeNumMembers` | boolean | No | Whether to include the member count in the response |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `channelInfo` | object | Detailed channel information |
+|   ↳ `id` | string | Channel ID \(e.g., C1234567890\) |
+|   ↳ `name` | string | Channel name without # prefix |
+|   ↳ `is_channel` | boolean | Whether this is a channel |
+|   ↳ `is_private` | boolean | Whether channel is private |
+|   ↳ `is_archived` | boolean | Whether channel is archived |
+|   ↳ `is_general` | boolean | Whether this is the general channel |
+|   ↳ `is_member` | boolean | Whether the bot/user is a member |
+|   ↳ `is_shared` | boolean | Whether channel is shared across workspaces |
+|   ↳ `is_ext_shared` | boolean | Whether channel is externally shared |
+|   ↳ `is_org_shared` | boolean | Whether channel is org-wide shared |
+|   ↳ `num_members` | number | Number of members in the channel |
+|   ↳ `topic` | string | Channel topic |
+|   ↳ `purpose` | string | Channel purpose/description |
+|   ↳ `created` | number | Unix timestamp when channel was created |
+|   ↳ `creator` | string | User ID of channel creator |
+|   ↳ `updated` | number | Unix timestamp of last update |
+
+### `slack_get_user_presence`
+
+Check whether a Slack user is currently active or away
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `authMethod` | string | No | Authentication method: oauth or bot_token |
+| `botToken` | string | No | Bot token for Custom Bot |
+| `userId` | string | Yes | User ID to check presence for \(e.g., U1234567890\) |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `presence` | string | User presence status: "active" or "away" |
+| `online` | boolean | Whether user has an active client connection \(only available when checking own presence\) |
+| `autoAway` | boolean | Whether user was automatically set to away due to inactivity \(only available when checking own presence\) |
+| `manualAway` | boolean | Whether user manually set themselves as away \(only available when checking own presence\) |
+| `connectionCount` | number | Total number of active connections for the user \(only available when checking own presence\) |
+| `lastActivity` | number | Unix timestamp of last detected activity \(only available when checking own presence\) |
+
+### `slack_edit_canvas`
+
+Edit an existing Slack canvas by inserting, replacing, or deleting content
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `authMethod` | string | No | Authentication method: oauth or bot_token |
+| `botToken` | string | No | Bot token for Custom Bot |
+| `canvasId` | string | Yes | Canvas ID to edit \(e.g., F1234ABCD\) |
+| `operation` | string | Yes | Edit operation: insert_at_start, insert_at_end, insert_after, insert_before, replace, delete, or rename |
+| `content` | string | No | Markdown content for the operation \(required for insert/replace operations\) |
+| `sectionId` | string | No | Section ID to target \(required for insert_after, insert_before, replace, and delete\) |
+| `title` | string | No | New title for the canvas \(only used with rename operation\) |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `content` | string | Success message |
+
+### `slack_create_channel_canvas`
+
+Create a canvas pinned to a Slack channel as its resource hub
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `authMethod` | string | No | Authentication method: oauth or bot_token |
+| `botToken` | string | No | Bot token for Custom Bot |
+| `channel` | string | Yes | Channel ID to create the canvas in \(e.g., C1234567890\) |
+| `title` | string | No | Title for the channel canvas |
+| `content` | string | No | Canvas content in markdown format |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `canvas_id` | string | ID of the created channel canvas |
+
 

apps/sim/blocks/blocks/slack.ts

@@ -9,7 +9,7 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
   type: 'slack',
   name: 'Slack',
   description:
-    'Send, update, delete messages, send ephemeral messages, add or remove reactions in Slack or trigger workflows from Slack events',
+    'Send, update, delete messages, add or remove reactions, manage canvases, get channel info and user presence in Slack',
   authMode: AuthMode.OAuth,
   longDescription:
     'Integrate Slack into the workflow. Can send, update, and delete messages, send ephemeral messages visible only to a specific user, create canvases, read messages, and add or remove reactions. Requires Bot Token instead of OAuth in advanced mode. Can be used in trigger mode to trigger a workflow when a message is sent to a channel.',
@@ -39,6 +39,10 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
         { label: 'Delete Message', id: 'delete' },
         { label: 'Add Reaction', id: 'react' },
         { label: 'Remove Reaction', id: 'unreact' },
+        { label: 'Get Channel Info', id: 'get_channel_info' },
+        { label: 'Get User Presence', id: 'get_user_presence' },
+        { label: 'Edit Canvas', id: 'edit_canvas' },
+        { label: 'Create Channel Canvas', id: 'create_channel_canvas' },
       ],
       value: () => 'send',
     },
@@ -142,7 +146,7 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
         }
         return {
           field: 'operation',
-          value: ['list_channels', 'list_users', 'get_user'],
+          value: ['list_channels', 'list_users', 'get_user', 'get_user_presence', 'edit_canvas'],
           not: true,
           and: {
             field: 'destinationType',
@@ -167,7 +171,7 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
         }
         return {
           field: 'operation',
-          value: ['list_channels', 'list_users', 'get_user'],
+          value: ['list_channels', 'list_users', 'get_user', 'get_user_presence', 'edit_canvas'],
           not: true,
           and: {
             field: 'destinationType',
@@ -210,8 +214,26 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
     {
       id: 'ephemeralUser',
       title: 'Target User',
+      type: 'user-selector',
+      canonicalParamId: 'ephemeralUser',
+      serviceId: 'slack',
+      selectorKey: 'slack.users',
+      placeholder: 'Select Slack user',
+      mode: 'basic',
+      dependsOn: { all: ['authMethod'], any: ['credential', 'botToken'] },
+      condition: {
+        field: 'operation',
+        value: 'ephemeral',
+      },
+      required: true,
+    },
+    {
+      id: 'manualEphemeralUser',
+      title: 'Target User ID',
       type: 'short-input',
-      placeholder: 'User ID who will see the message (e.g., U1234567890)',
+      canonicalParamId: 'ephemeralUser',
+      placeholder: 'Enter Slack user ID (e.g., U1234567890)',
+      mode: 'advanced',
       condition: {
         field: 'operation',
         value: 'ephemeral',
@@ -441,9 +463,27 @@ Do not include any explanations, markdown formatting, or other text outside the
     // Get User specific fields
     {
       id: 'userId',
+      title: 'User',
+      type: 'user-selector',
+      canonicalParamId: 'userId',
+      serviceId: 'slack',
+      selectorKey: 'slack.users',
+      placeholder: 'Select Slack user',
+      mode: 'basic',
+      dependsOn: { all: ['authMethod'], any: ['credential', 'botToken'] },
+      condition: {
+        field: 'operation',
+        value: 'get_user',
+      },
+      required: true,
+    },
+    {
+      id: 'manualUserId',
       title: 'User ID',
       type: 'short-input',
+      canonicalParamId: 'userId',
       placeholder: 'Enter Slack user ID (e.g., U1234567890)',
+      mode: 'advanced',
       condition: {
         field: 'operation',
         value: 'get_user',
@@ -624,6 +664,146 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
       },
       required: true,
     },
+    // Get Channel Info specific fields
+    {
+      id: 'includeNumMembers',
+      title: 'Include Member Count',
+      type: 'dropdown',
+      options: [
+        { label: 'Yes', id: 'true' },
+        { label: 'No', id: 'false' },
+      ],
+      value: () => 'true',
+      condition: {
+        field: 'operation',
+        value: 'get_channel_info',
+      },
+    },
+    // Get User Presence specific fields
+    {
+      id: 'presenceUserId',
+      title: 'User',
+      type: 'user-selector',
+      canonicalParamId: 'presenceUserId',
+      serviceId: 'slack',
+      selectorKey: 'slack.users',
+      placeholder: 'Select Slack user',
+      mode: 'basic',
+      dependsOn: { all: ['authMethod'], any: ['credential', 'botToken'] },
+      condition: {
+        field: 'operation',
+        value: 'get_user_presence',
+      },
+      required: true,
+    },
+    {
+      id: 'manualPresenceUserId',
+      title: 'User ID',
+      type: 'short-input',
+      canonicalParamId: 'presenceUserId',
+      placeholder: 'Enter Slack user ID (e.g., U1234567890)',
+      mode: 'advanced',
+      condition: {
+        field: 'operation',
+        value: 'get_user_presence',
+      },
+      required: true,
+    },
+    // Edit Canvas specific fields
+    {
+      id: 'editCanvasId',
+      title: 'Canvas ID',
+      type: 'short-input',
+      placeholder: 'Enter canvas ID (e.g., F1234ABCD)',
+      condition: {
+        field: 'operation',
+        value: 'edit_canvas',
+      },
+      required: true,
+    },
+    {
+      id: 'canvasOperation',
+      title: 'Edit Operation',
+      type: 'dropdown',
+      options: [
+        { label: 'Insert at Start', id: 'insert_at_start' },
+        { label: 'Insert at End', id: 'insert_at_end' },
+        { label: 'Insert After Section', id: 'insert_after' },
+        { label: 'Insert Before Section', id: 'insert_before' },
+        { label: 'Replace Section', id: 'replace' },
+        { label: 'Delete Section', id: 'delete' },
+        { label: 'Rename Canvas', id: 'rename' },
+      ],
+      value: () => 'insert_at_end',
+      condition: {
+        field: 'operation',
+        value: 'edit_canvas',
+      },
+      required: true,
+    },
+    {
+      id: 'canvasContent',
+      title: 'Content',
+      type: 'long-input',
+      placeholder: 'Enter content in markdown format',
+      condition: {
+        field: 'operation',
+        value: 'edit_canvas',
+        and: {
+          field: 'canvasOperation',
+          value: ['delete', 'rename'],
+          not: true,
+        },
+      },
+    },
+    {
+      id: 'sectionId',
+      title: 'Section ID',
+      type: 'short-input',
+      placeholder: 'Section ID to target',
+      condition: {
+        field: 'operation',
+        value: 'edit_canvas',
+        and: {
+          field: 'canvasOperation',
+          value: ['insert_after', 'insert_before', 'replace', 'delete'],
+        },
+      },
+      required: true,
+    },
+    {
+      id: 'canvasTitle',
+      title: 'New Title',
+      type: 'short-input',
+      placeholder: 'Enter new canvas title',
+      condition: {
+        field: 'operation',
+        value: 'edit_canvas',
+        and: { field: 'canvasOperation', value: 'rename' },
+      },
+      required: true,
+    },
+    // Create Channel Canvas specific fields
+    {
+      id: 'channelCanvasTitle',
+      title: 'Canvas Title',
+      type: 'short-input',
+      placeholder: 'Enter canvas title (optional)',
+      condition: {
+        field: 'operation',
+        value: 'create_channel_canvas',
+      },
+    },
+    {
+      id: 'channelCanvasContent',
+      title: 'Canvas Content',
+      type: 'long-input',
+      placeholder: 'Enter canvas content (markdown supported)',
+      condition: {
+        field: 'operation',
+        value: 'create_channel_canvas',
+      },
+    },
     ...getTrigger('slack_webhook').subBlocks,
   ],
   tools: {
@@ -643,6 +823,10 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
       'slack_delete_message',
       'slack_add_reaction',
       'slack_remove_reaction',
+      'slack_get_channel_info',
+      'slack_get_user_presence',
+      'slack_edit_canvas',
+      'slack_create_channel_canvas',
     ],
     config: {
       tool: (params) => {
@@ -677,6 +861,14 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
             return 'slack_add_reaction'
           case 'unreact':
             return 'slack_remove_reaction'
+          case 'get_channel_info':
+            return 'slack_get_channel_info'
+          case 'get_user_presence':
+            return 'slack_get_user_presence'
+          case 'edit_canvas':
+            return 'slack_edit_canvas'
+          case 'create_channel_canvas':
+            return 'slack_create_channel_canvas'
           default:
             throw new Error(`Invalid Slack operation: ${params.operation}`)
         }
@@ -714,6 +906,15 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
           getMessageTimestamp,
           getThreadTimestamp,
           threadLimit,
+          includeNumMembers,
+          presenceUserId,
+          editCanvasId,
+          canvasOperation,
+          canvasContent,
+          sectionId,
+          canvasTitle,
+          channelCanvasTitle,
+          channelCanvasContent,
           ...rest
         } = params
 
@@ -824,10 +1025,10 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
 
           case 'download': {
             const fileId = (rest as any).fileId
-            const downloadFileName = (rest as any).downloadFileName
+            const fileName = (rest as any).fileName
             baseParams.fileId = fileId
-            if (downloadFileName) {
-              baseParams.fileName = downloadFileName
+            if (fileName) {
+              baseParams.fileName = fileName
             }
             break
           }
@@ -849,6 +1050,37 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
             baseParams.timestamp = reactionTimestamp
             baseParams.name = emojiName
             break
+
+          case 'get_channel_info':
+            baseParams.includeNumMembers = includeNumMembers !== 'false'
+            break
+
+          case 'get_user_presence':
+            baseParams.userId = presenceUserId
+            break
+
+          case 'edit_canvas':
+            baseParams.canvasId = editCanvasId
+            baseParams.operation = canvasOperation
+            if (canvasContent) {
+              baseParams.content = canvasContent
+            }
+            if (sectionId) {
+              baseParams.sectionId = sectionId
+            }
+            if (canvasTitle) {
+              baseParams.title = canvasTitle
+            }
+            break
+
+          case 'create_channel_canvas':
+            if (channelCanvasTitle) {
+              baseParams.title = channelCanvasTitle
+            }
+            if (channelCanvasContent) {
+              baseParams.content = channelCanvasContent
+            }
+            break
         }
 
         return baseParams
@@ -903,6 +1135,19 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
       type: 'string',
       description: 'Maximum number of messages to return from thread',
     },
+    // Get Channel Info inputs
+    includeNumMembers: { type: 'string', description: 'Include member count (true/false)' },
+    // Get User Presence inputs
+    presenceUserId: { type: 'string', description: 'User ID to check presence for' },
+    // Edit Canvas inputs
+    editCanvasId: { type: 'string', description: 'Canvas ID to edit' },
+    canvasOperation: { type: 'string', description: 'Canvas edit operation' },
+    canvasContent: { type: 'string', description: 'Markdown content for canvas edit' },
+    sectionId: { type: 'string', description: 'Canvas section ID to target' },
+    canvasTitle: { type: 'string', description: 'New canvas title for rename' },
+    // Create Channel Canvas inputs
+    channelCanvasTitle: { type: 'string', description: 'Title for channel canvas' },
+    channelCanvasContent: { type: 'string', description: 'Content for channel canvas' },
   },
   outputs: {
     // slack_message outputs (send operation)
@@ -999,6 +1244,43 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
       description: 'Updated message metadata (legacy, use message object instead)',
     },
 
+    // slack_get_channel_info outputs (get_channel_info operation)
+    channelInfo: {
+      type: 'json',
+      description:
+        'Detailed channel object with properties: id, name, is_private, is_archived, is_member, num_members, topic, purpose, created, creator',
+    },
+
+    // slack_get_user_presence outputs (get_user_presence operation)
+    presence: {
+      type: 'string',
+      description: 'User presence status: "active" or "away"',
+    },
+    online: {
+      type: 'boolean',
+      description:
+        'Whether user has an active client connection (only available when checking own presence)',
+    },
+    autoAway: {
+      type: 'boolean',
+      description:
+        'Whether user was automatically set to away (only available when checking own presence)',
+    },
+    manualAway: {
+      type: 'boolean',
+      description:
+        'Whether user manually set themselves as away (only available when checking own presence)',
+    },
+    connectionCount: {
+      type: 'number',
+      description: 'Total number of active connections (only available when checking own presence)',
+    },
+    lastActivity: {
+      type: 'number',
+      description:
+        'Unix timestamp of last detected activity (only available when checking own presence)',
+    },
+
     // Trigger outputs (when used as webhook trigger)
     event_type: { type: 'string', description: 'Type of Slack event that triggered the workflow' },
     channel_name: { type: 'string', description: 'Human-readable channel name' },

apps/sim/tools/registry.ts

@@ -1797,11 +1797,15 @@ import {
 import {
   slackAddReactionTool,
   slackCanvasTool,
+  slackCreateChannelCanvasTool,
   slackDeleteMessageTool,
   slackDownloadTool,
+  slackEditCanvasTool,
   slackEphemeralMessageTool,
+  slackGetChannelInfoTool,
   slackGetMessageTool,
   slackGetThreadTool,
+  slackGetUserPresenceTool,
   slackGetUserTool,
   slackListChannelsTool,
   slackListMembersTool,
@@ -2613,6 +2617,10 @@ export const tools: Record<string, ToolConfig> = {
   slack_delete_message: slackDeleteMessageTool,
   slack_add_reaction: slackAddReactionTool,
   slack_remove_reaction: slackRemoveReactionTool,
+  slack_get_channel_info: slackGetChannelInfoTool,
+  slack_get_user_presence: slackGetUserPresenceTool,
+  slack_edit_canvas: slackEditCanvasTool,
+  slack_create_channel_canvas: slackCreateChannelCanvasTool,
   github_repo_info: githubRepoInfoTool,
   github_repo_info_v2: githubRepoInfoV2Tool,
   github_latest_commit: githubLatestCommitTool,

apps/sim/tools/slack/canvas.ts

@@ -87,9 +87,21 @@ export const slackCanvasTool: ToolConfig<SlackCanvasParams, SlackCanvasResponse>
     },
   },
 
-  transformResponse: async (response: Response) => {
+  transformResponse: async (response: Response): Promise<SlackCanvasResponse> => {
     const data = await response.json()
 
+    if (!data.ok) {
+      return {
+        success: false,
+        output: {
+          canvas_id: '',
+          channel: '',
+          title: '',
+          error: data.error || 'Unknown error',
+        },
+      }
+    }
+
     return {
       success: true,
       output: {

apps/sim/tools/slack/create_channel_canvas.ts

@@ -0,0 +1,108 @@
+import type {
+  SlackCreateChannelCanvasParams,
+  SlackCreateChannelCanvasResponse,
+} from '@/tools/slack/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const slackCreateChannelCanvasTool: ToolConfig<
+  SlackCreateChannelCanvasParams,
+  SlackCreateChannelCanvasResponse
+> = {
+  id: 'slack_create_channel_canvas',
+  name: 'Slack Create Channel Canvas',
+  description: 'Create a canvas pinned to a Slack channel as its resource hub',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'slack',
+  },
+
+  params: {
+    authMethod: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Authentication method: oauth or bot_token',
+    },
+    botToken: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Bot token for Custom Bot',
+    },
+    accessToken: {
+      type: 'string',
+      required: false,
+      visibility: 'hidden',
+      description: 'OAuth access token or bot token for Slack API',
+    },
+    channel: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Channel ID to create the canvas in (e.g., C1234567890)',
+    },
+    title: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Title for the channel canvas',
+    },
+    content: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Canvas content in markdown format',
+    },
+  },
+
+  request: {
+    url: 'https://slack.com/api/conversations.canvases.create',
+    method: 'POST',
+    headers: (params: SlackCreateChannelCanvasParams) => ({
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${params.accessToken || params.botToken}`,
+    }),
+    body: (params: SlackCreateChannelCanvasParams) => {
+      const body: Record<string, unknown> = {
+        channel_id: params.channel.trim(),
+      }
+
+      if (params.title) {
+        body.title = params.title
+      }
+
+      if (params.content) {
+        body.document_content = {
+          type: 'markdown',
+          markdown: params.content,
+        }
+      }
+
+      return body
+    },
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!data.ok) {
+      if (data.error === 'channel_canvas_already_exists') {
+        throw new Error('A canvas already exists for this channel. Use Edit Canvas to modify it.')
+      }
+      throw new Error(data.error || 'Failed to create channel canvas')
+    }
+
+    return {
+      success: true,
+      output: {
+        canvas_id: data.canvas_id,
+      },
+    }
+  },
+
+  outputs: {
+    canvas_id: { type: 'string', description: 'ID of the created channel canvas' },
+  },
+}

apps/sim/tools/slack/edit_canvas.ts

@@ -0,0 +1,121 @@
+import type { SlackEditCanvasParams, SlackEditCanvasResponse } from '@/tools/slack/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const slackEditCanvasTool: ToolConfig<SlackEditCanvasParams, SlackEditCanvasResponse> = {
+  id: 'slack_edit_canvas',
+  name: 'Slack Edit Canvas',
+  description: 'Edit an existing Slack canvas by inserting, replacing, or deleting content',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'slack',
+  },
+
+  params: {
+    authMethod: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Authentication method: oauth or bot_token',
+    },
+    botToken: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Bot token for Custom Bot',
+    },
+    accessToken: {
+      type: 'string',
+      required: false,
+      visibility: 'hidden',
+      description: 'OAuth access token or bot token for Slack API',
+    },
+    canvasId: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Canvas ID to edit (e.g., F1234ABCD)',
+    },
+    operation: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description:
+        'Edit operation: insert_at_start, insert_at_end, insert_after, insert_before, replace, delete, or rename',
+    },
+    content: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Markdown content for the operation (required for insert/replace operations)',
+    },
+    sectionId: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description:
+        'Section ID to target (required for insert_after, insert_before, replace, and delete)',
+    },
+    title: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'New title for the canvas (only used with rename operation)',
+    },
+  },
+
+  request: {
+    url: 'https://slack.com/api/canvases.edit',
+    method: 'POST',
+    headers: (params: SlackEditCanvasParams) => ({
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${params.accessToken || params.botToken}`,
+    }),
+    body: (params: SlackEditCanvasParams) => {
+      const change: Record<string, unknown> = {
+        operation: params.operation,
+      }
+
+      if (params.sectionId) {
+        change.section_id = params.sectionId.trim()
+      }
+
+      if (params.operation === 'rename' && params.title) {
+        change.title_content = {
+          type: 'markdown',
+          markdown: params.title,
+        }
+      } else if (params.content && params.operation !== 'delete') {
+        change.document_content = {
+          type: 'markdown',
+          markdown: params.content,
+        }
+      }
+
+      return {
+        canvas_id: params.canvasId.trim(),
+        changes: [change],
+      }
+    },
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!data.ok) {
+      throw new Error(data.error || 'Failed to edit canvas')
+    }
+
+    return {
+      success: true,
+      output: {
+        content: 'Successfully edited canvas',
+      },
+    }
+  },
+
+  outputs: {
+    content: { type: 'string', description: 'Success message' },
+  },
+}

apps/sim/tools/slack/get_channel_info.ts

@@ -0,0 +1,115 @@
+import type { SlackGetChannelInfoParams, SlackGetChannelInfoResponse } from '@/tools/slack/types'
+import { CHANNEL_OUTPUT_PROPERTIES } from '@/tools/slack/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const slackGetChannelInfoTool: ToolConfig<
+  SlackGetChannelInfoParams,
+  SlackGetChannelInfoResponse
+> = {
+  id: 'slack_get_channel_info',
+  name: 'Slack Get Channel Info',
+  description: 'Get detailed information about a Slack channel by its ID',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'slack',
+  },
+
+  params: {
+    authMethod: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Authentication method: oauth or bot_token',
+    },
+    botToken: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Bot token for Custom Bot',
+    },
+    accessToken: {
+      type: 'string',
+      required: false,
+      visibility: 'hidden',
+      description: 'OAuth access token or bot token for Slack API',
+    },
+    channel: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Channel ID to get information about (e.g., C1234567890)',
+    },
+    includeNumMembers: {
+      type: 'boolean',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Whether to include the member count in the response',
+    },
+  },
+
+  request: {
+    url: (params: SlackGetChannelInfoParams) => {
+      const url = new URL('https://slack.com/api/conversations.info')
+      url.searchParams.append('channel', params.channel.trim())
+      url.searchParams.append('include_num_members', String(params.includeNumMembers ?? true))
+      return url.toString()
+    },
+    method: 'GET',
+    headers: (params: SlackGetChannelInfoParams) => ({
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${params.accessToken || params.botToken}`,
+    }),
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!data.ok) {
+      if (data.error === 'channel_not_found') {
+        throw new Error('Channel not found. Please check the channel ID and try again.')
+      }
+      if (data.error === 'missing_scope') {
+        throw new Error(
+          'Missing required permissions. Please reconnect your Slack account with the necessary scopes (channels:read).'
+        )
+      }
+      throw new Error(data.error || 'Failed to get channel info from Slack')
+    }
+
+    const channel = data.channel
+
+    return {
+      success: true,
+      output: {
+        channelInfo: {
+          id: channel.id,
+          name: channel.name ?? '',
+          is_channel: channel.is_channel ?? false,
+          is_private: channel.is_private ?? false,
+          is_archived: channel.is_archived ?? false,
+          is_general: channel.is_general ?? false,
+          is_member: channel.is_member ?? false,
+          is_shared: channel.is_shared ?? false,
+          is_ext_shared: channel.is_ext_shared ?? false,
+          is_org_shared: channel.is_org_shared ?? false,
+          num_members: channel.num_members ?? null,
+          topic: channel.topic?.value ?? '',
+          purpose: channel.purpose?.value ?? '',
+          created: channel.created ?? null,
+          creator: channel.creator ?? null,
+          updated: channel.updated ?? null,
+        },
+      },
+    }
+  },
+
+  outputs: {
+    channelInfo: {
+      type: 'object',
+      description: 'Detailed channel information',
+      properties: CHANNEL_OUTPUT_PROPERTIES,
+    },
+  },
+}

apps/sim/tools/slack/get_user_presence.ts

@@ -0,0 +1,122 @@
+import type { SlackGetUserPresenceParams, SlackGetUserPresenceResponse } from '@/tools/slack/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const slackGetUserPresenceTool: ToolConfig<
+  SlackGetUserPresenceParams,
+  SlackGetUserPresenceResponse
+> = {
+  id: 'slack_get_user_presence',
+  name: 'Slack Get User Presence',
+  description: 'Check whether a Slack user is currently active or away',
+  version: '1.0.0',
+
+  oauth: {
+    required: true,
+    provider: 'slack',
+  },
+
+  params: {
+    authMethod: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Authentication method: oauth or bot_token',
+    },
+    botToken: {
+      type: 'string',
+      required: false,
+      visibility: 'user-only',
+      description: 'Bot token for Custom Bot',
+    },
+    accessToken: {
+      type: 'string',
+      required: false,
+      visibility: 'hidden',
+      description: 'OAuth access token or bot token for Slack API',
+    },
+    userId: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'User ID to check presence for (e.g., U1234567890)',
+    },
+  },
+
+  request: {
+    url: (params: SlackGetUserPresenceParams) => {
+      const url = new URL('https://slack.com/api/users.getPresence')
+      url.searchParams.append('user', params.userId.trim())
+      return url.toString()
+    },
+    method: 'GET',
+    headers: (params: SlackGetUserPresenceParams) => ({
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${params.accessToken || params.botToken}`,
+    }),
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    if (!data.ok) {
+      if (data.error === 'user_not_found') {
+        throw new Error('User not found. Please check the user ID and try again.')
+      }
+      if (data.error === 'missing_scope') {
+        throw new Error(
+          'Missing required permissions. Please reconnect your Slack account with the necessary scopes (users:read).'
+        )
+      }
+      throw new Error(data.error || 'Failed to get user presence from Slack')
+    }
+
+    return {
+      success: true,
+      output: {
+        presence: data.presence,
+        online: data.online ?? null,
+        autoAway: data.auto_away ?? null,
+        manualAway: data.manual_away ?? null,
+        connectionCount: data.connection_count ?? null,
+        lastActivity: data.last_activity ?? null,
+      },
+    }
+  },
+
+  outputs: {
+    presence: {
+      type: 'string',
+      description: 'User presence status: "active" or "away"',
+    },
+    online: {
+      type: 'boolean',
+      description:
+        'Whether user has an active client connection (only available when checking own presence)',
+      optional: true,
+    },
+    autoAway: {
+      type: 'boolean',
+      description:
+        'Whether user was automatically set to away due to inactivity (only available when checking own presence)',
+      optional: true,
+    },
+    manualAway: {
+      type: 'boolean',
+      description:
+        'Whether user manually set themselves as away (only available when checking own presence)',
+      optional: true,
+    },
+    connectionCount: {
+      type: 'number',
+      description:
+        'Total number of active connections for the user (only available when checking own presence)',
+      optional: true,
+    },
+    lastActivity: {
+      type: 'number',
+      description:
+        'Unix timestamp of last detected activity (only available when checking own presence)',
+      optional: true,
+    },
+  },
+}

apps/sim/tools/slack/index.ts

@@ -1,11 +1,15 @@
 import { slackAddReactionTool } from '@/tools/slack/add_reaction'
 import { slackCanvasTool } from '@/tools/slack/canvas'
+import { slackCreateChannelCanvasTool } from '@/tools/slack/create_channel_canvas'
 import { slackDeleteMessageTool } from '@/tools/slack/delete_message'
 import { slackDownloadTool } from '@/tools/slack/download'
+import { slackEditCanvasTool } from '@/tools/slack/edit_canvas'
 import { slackEphemeralMessageTool } from '@/tools/slack/ephemeral_message'
+import { slackGetChannelInfoTool } from '@/tools/slack/get_channel_info'
 import { slackGetMessageTool } from '@/tools/slack/get_message'
 import { slackGetThreadTool } from '@/tools/slack/get_thread'
 import { slackGetUserTool } from '@/tools/slack/get_user'
+import { slackGetUserPresenceTool } from '@/tools/slack/get_user_presence'
 import { slackListChannelsTool } from '@/tools/slack/list_channels'
 import { slackListMembersTool } from '@/tools/slack/list_members'
 import { slackListUsersTool } from '@/tools/slack/list_users'
@@ -17,17 +21,21 @@ import { slackUpdateMessageTool } from '@/tools/slack/update_message'
 export {
   slackMessageTool,
   slackCanvasTool,
+  slackCreateChannelCanvasTool,
   slackMessageReaderTool,
   slackDownloadTool,
+  slackEditCanvasTool,
   slackEphemeralMessageTool,
   slackUpdateMessageTool,
   slackDeleteMessageTool,
   slackAddReactionTool,
   slackRemoveReactionTool,
+  slackGetChannelInfoTool,
   slackListChannelsTool,
   slackListMembersTool,
   slackListUsersTool,
   slackGetUserTool,
+  slackGetUserPresenceTool,
   slackGetMessageTool,
   slackGetThreadTool,
 }

apps/sim/tools/slack/types.ts

@@ -606,6 +606,29 @@ export interface SlackGetThreadParams extends SlackBaseParams {
   limit?: number
 }
 
+export interface SlackGetChannelInfoParams extends SlackBaseParams {
+  channel: string
+  includeNumMembers?: boolean
+}
+
+export interface SlackGetUserPresenceParams extends SlackBaseParams {
+  userId: string
+}
+
+export interface SlackEditCanvasParams extends SlackBaseParams {
+  canvasId: string
+  operation: string
+  content?: string
+  sectionId?: string
+  title?: string
+}
+
+export interface SlackCreateChannelCanvasParams extends SlackBaseParams {
+  channel: string
+  title?: string
+  content?: string
+}
+
 export interface SlackMessageResponse extends ToolResponse {
   output: {
     // Legacy properties for backward compatibility
@@ -779,14 +802,20 @@ export interface SlackRemoveReactionResponse extends ToolResponse {
 export interface SlackChannel {
   id: string
   name: string
+  is_channel?: boolean
   is_private: boolean
   is_archived: boolean
+  is_general?: boolean
   is_member: boolean
+  is_shared?: boolean
+  is_ext_shared?: boolean
+  is_org_shared?: boolean
   num_members?: number
   topic?: string
   purpose?: string
   created?: number
   creator?: string
+  updated?: number
 }
 
 export interface SlackListChannelsResponse extends ToolResponse {
@@ -875,6 +904,35 @@ export interface SlackGetThreadResponse extends ToolResponse {
   }
 }
 
+export interface SlackGetChannelInfoResponse extends ToolResponse {
+  output: {
+    channelInfo: SlackChannel
+  }
+}
+
+export interface SlackGetUserPresenceResponse extends ToolResponse {
+  output: {
+    presence: string
+    online?: boolean | null
+    autoAway?: boolean | null
+    manualAway?: boolean | null
+    connectionCount?: number | null
+    lastActivity?: number | null
+  }
+}
+
+export interface SlackEditCanvasResponse extends ToolResponse {
+  output: {
+    content: string
+  }
+}
+
+export interface SlackCreateChannelCanvasResponse extends ToolResponse {
+  output: {
+    canvas_id: string
+  }
+}
+
 export type SlackResponse =
   | SlackCanvasResponse
   | SlackMessageReaderResponse
@@ -891,3 +949,7 @@ export type SlackResponse =
   | SlackEphemeralMessageResponse
   | SlackGetMessageResponse
   | SlackGetThreadResponse
+  | SlackGetChannelInfoResponse
+  | SlackGetUserPresenceResponse
+  | SlackEditCanvasResponse
+  | SlackCreateChannelCanvasResponse