feat(slack): added get message by timestamp and get thread tool (#2803)

* feat(slack): added get message tool

* added get thread

apps/docs/components/icons.tsx

@@ -1855,17 +1855,25 @@ export function LinearIcon(props: React.SVGProps<SVGSVGElement>) {
 
 export function LemlistIcon(props: SVGProps<SVGSVGElement>) {
   return (
-    <svg
-      {...props}
-      xmlns='http://www.w3.org/2000/svg'
-      viewBox='0 0 24 24'
-      width='24'
-      height='24'
-      fill='none'
-    >
-      <rect width='24' height='24' rx='4' fill='#316BFF' />
-      <path d='M7 6h2v9h5v2H7V6Z' fill='white' />
-      <circle cx='17' cy='8' r='2' fill='white' />
+    <svg {...props} xmlns='http://www.w3.org/2000/svg' viewBox='0 0 180 181' fill='none'>
+      <path
+        fillRule='evenodd'
+        clipRule='evenodd'
+        d='M32.0524 0.919922H147.948C165.65 0.919922 180 15.2703 180 32.9723V148.867C180 166.57 165.65 180.92 147.948 180.92H32.0524C14.3504 180.92 0 166.57 0 148.867V32.9723C0 15.2703 14.3504 0.919922 32.0524 0.919922ZM119.562 82.8879H85.0826C82.4732 82.8879 80.3579 85.0032 80.3579 87.6126V94.2348C80.3579 96.8442 82.4732 98.9595 85.0826 98.9595H119.562C122.171 98.9595 124.286 96.8442 124.286 94.2348V87.6126C124.286 85.0032 122.171 82.8879 119.562 82.8879ZM85.0826 49.1346H127.061C129.67 49.1346 131.785 51.2499 131.785 53.8593V60.4815C131.785 63.0909 129.67 65.2062 127.061 65.2062H85.0826C82.4732 65.2062 80.3579 63.0909 80.3579 60.4815V53.8593C80.3579 51.2499 82.4732 49.1346 85.0826 49.1346ZM131.785 127.981V121.358C131.785 118.75 129.669 116.634 127.061 116.634H76.5706C69.7821 116.634 64.2863 111.138 64.2863 104.349V53.8593C64.2863 51.2513 62.1697 49.1346 59.5616 49.1346H52.9395C50.3314 49.1346 48.2147 51.2513 48.2147 53.8593V114.199C48.8497 124.133 56.7873 132.07 66.7205 132.705H127.061C129.669 132.705 131.785 130.589 131.785 127.981Z'
+        fill='#316BFF'
+      />
+      <path
+        d='M85.0826 49.1346H127.061C129.67 49.1346 131.785 51.2499 131.785 53.8593V60.4815C131.785 63.0909 129.67 65.2062 127.061 65.2062H85.0826C82.4732 65.2062 80.3579 63.0909 80.3579 60.4815V53.8593C80.3579 51.2499 82.4732 49.1346 85.0826 49.1346Z'
+        fill='white'
+      />
+      <path
+        d='M85.0826 82.8879H119.562C122.171 82.8879 124.286 85.0032 124.286 87.6126V94.2348C124.286 96.8442 122.171 98.9595 119.562 98.9595H85.0826C82.4732 98.9595 80.3579 96.8442 80.3579 94.2348V87.6126C80.3579 85.0032 82.4732 82.8879 85.0826 82.8879Z'
+        fill='white'
+      />
+      <path
+        d='M131.785 121.358V127.981C131.785 130.589 129.669 132.705 127.061 132.705H66.7205C56.7873 132.07 48.8497 124.133 48.2147 114.199V53.8593C48.2147 51.2513 50.3314 49.1346 52.9395 49.1346H59.5616C62.1697 49.1346 64.2863 51.2513 64.2863 53.8593V104.349C64.2863 111.138 69.7821 116.634 76.5706 116.634H127.061C129.669 116.634 131.785 118.75 131.785 121.358Z'
+        fill='white'
+      />
     </svg>
   )
 }

apps/docs/content/docs/en/tools/a2a.mdx

@@ -208,8 +208,3 @@ Delete the push notification webhook configuration for a task.
 | `success` | boolean | Whether deletion was successful |
 
 
-
-## Notes
-
-- Category: `tools`
-- Type: `a2a`

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

@@ -49,8 +49,7 @@ Retrieves lead information by email address or lead ID.
 | Parameter | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
 | `apiKey` | string | Yes | Lemlist API key |
-| `email` | string | No | Lead email address \(use either email or id\) |
-| `id` | string | No | Lead ID \(use either email or id\) |
+| `leadIdentifier` | string | Yes | Lead email address or lead ID |
 
 #### Output
 

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

@@ -124,6 +124,45 @@ Read the latest messages from Slack channels. Retrieve conversation history with
 | --------- | ---- | ----------- |
 | `messages` | array | Array of message objects from the channel |
 
+### `slack_get_message`
+
+Retrieve a specific message by its timestamp. Useful for getting a thread parent message.
+
+#### 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 | Slack channel ID \(e.g., C1234567890\) |
+| `timestamp` | string | Yes | Message timestamp to retrieve \(e.g., 1405894322.002768\) |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `message` | object | The retrieved message object |
+
+### `slack_get_thread`
+
+Retrieve an entire thread including the parent message and all replies. Useful for getting full conversation context.
+
+#### 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 | Slack channel ID \(e.g., C1234567890\) |
+| `threadTs` | string | Yes | Thread timestamp \(thread_ts\) to retrieve \(e.g., 1405894322.002768\) |
+| `limit` | number | No | Maximum number of messages to return \(default: 100, max: 200\) |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `parentMessage` | object | The thread parent message |
+
 ### `slack_list_channels`
 
 List all channels in a Slack workspace. Returns public and private channels the bot has access to.

apps/sim/blocks/blocks/slack.ts

@@ -26,6 +26,8 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
         { label: 'Send Message', id: 'send' },
         { label: 'Create Canvas', id: 'canvas' },
         { label: 'Read Messages', id: 'read' },
+        { label: 'Get Message', id: 'get_message' },
+        { label: 'Get Thread', id: 'get_thread' },
         { label: 'List Channels', id: 'list_channels' },
         { label: 'List Channel Members', id: 'list_members' },
         { label: 'List Users', id: 'list_users' },
@@ -316,6 +318,68 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
       },
       required: true,
     },
+    // Get Message specific fields
+    {
+      id: 'getMessageTimestamp',
+      title: 'Message Timestamp',
+      type: 'short-input',
+      placeholder: 'Message timestamp (e.g., 1405894322.002768)',
+      condition: {
+        field: 'operation',
+        value: 'get_message',
+      },
+      required: true,
+      wandConfig: {
+        enabled: true,
+        prompt: `Extract or generate a Slack message timestamp from the user's input.
+Slack message timestamps are in the format: XXXXXXXXXX.XXXXXX (seconds.microseconds since Unix epoch).
+Examples:
+- "1405894322.002768" -> 1405894322.002768 (already a valid timestamp)
+- "thread_ts from the trigger" -> The user wants to reference a variable, output the original text
+- A URL like "https://slack.com/archives/C123/p1405894322002768" -> Extract 1405894322.002768 (remove 'p' prefix, add decimal after 10th digit)
+
+If the input looks like a reference to another block's output (contains < and >) or a variable, return it as-is.
+Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
+        placeholder: 'Paste a Slack message URL or timestamp...',
+        generationType: 'timestamp',
+      },
+    },
+    // Get Thread specific fields
+    {
+      id: 'getThreadTimestamp',
+      title: 'Thread Timestamp',
+      type: 'short-input',
+      placeholder: 'Thread timestamp (thread_ts, e.g., 1405894322.002768)',
+      condition: {
+        field: 'operation',
+        value: 'get_thread',
+      },
+      required: true,
+      wandConfig: {
+        enabled: true,
+        prompt: `Extract or generate a Slack thread timestamp from the user's input.
+Slack thread timestamps (thread_ts) are in the format: XXXXXXXXXX.XXXXXX (seconds.microseconds since Unix epoch).
+Examples:
+- "1405894322.002768" -> 1405894322.002768 (already a valid timestamp)
+- "thread_ts from the trigger" -> The user wants to reference a variable, output the original text
+- A URL like "https://slack.com/archives/C123/p1405894322002768" -> Extract 1405894322.002768 (remove 'p' prefix, add decimal after 10th digit)
+
+If the input looks like a reference to another block's output (contains < and >) or a variable, return it as-is.
+Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
+        placeholder: 'Paste a Slack thread URL or thread_ts...',
+        generationType: 'timestamp',
+      },
+    },
+    {
+      id: 'threadLimit',
+      title: 'Message Limit',
+      type: 'short-input',
+      placeholder: '100',
+      condition: {
+        field: 'operation',
+        value: 'get_thread',
+      },
+    },
     {
       id: 'oldest',
       title: 'Oldest Timestamp',
@@ -430,6 +494,8 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
       'slack_message',
       'slack_canvas',
       'slack_message_reader',
+      'slack_get_message',
+      'slack_get_thread',
       'slack_list_channels',
       'slack_list_members',
       'slack_list_users',
@@ -448,6 +514,10 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
             return 'slack_canvas'
           case 'read':
             return 'slack_message_reader'
+          case 'get_message':
+            return 'slack_get_message'
+          case 'get_thread':
+            return 'slack_get_thread'
           case 'list_channels':
             return 'slack_list_channels'
           case 'list_members':
@@ -498,6 +568,9 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
           includeDeleted,
           userLimit,
           userId,
+          getMessageTimestamp,
+          getThreadTimestamp,
+          threadLimit,
           ...rest
         } = params
 
@@ -574,6 +647,27 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
             break
           }
 
+          case 'get_message':
+            if (!getMessageTimestamp) {
+              throw new Error('Message timestamp is required for get message operation')
+            }
+            baseParams.timestamp = getMessageTimestamp
+            break
+
+          case 'get_thread': {
+            if (!getThreadTimestamp) {
+              throw new Error('Thread timestamp is required for get thread operation')
+            }
+            baseParams.threadTs = getThreadTimestamp
+            if (threadLimit) {
+              const parsedLimit = Number.parseInt(threadLimit, 10)
+              if (!Number.isNaN(parsedLimit) && parsedLimit > 0) {
+                baseParams.limit = Math.min(parsedLimit, 200)
+              }
+            }
+            break
+          }
+
           case 'list_channels': {
             baseParams.includePrivate = includePrivate !== 'false'
             baseParams.excludeArchived = true
@@ -679,6 +773,14 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
     userLimit: { type: 'string', description: 'Maximum number of users to return' },
     // Get User inputs
     userId: { type: 'string', description: 'User ID to look up' },
+    // Get Message inputs
+    getMessageTimestamp: { type: 'string', description: 'Message timestamp to retrieve' },
+    // Get Thread inputs
+    getThreadTimestamp: { type: 'string', description: 'Thread timestamp to retrieve' },
+    threadLimit: {
+      type: 'string',
+      description: 'Maximum number of messages to return from thread',
+    },
   },
   outputs: {
     // slack_message outputs (send operation)
@@ -706,6 +808,24 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
         'Array of message objects with comprehensive properties: text, user, timestamp, reactions, threads, files, attachments, blocks, stars, pins, and edit history',
     },
 
+    // slack_get_thread outputs (get_thread operation)
+    parentMessage: {
+      type: 'json',
+      description: 'The thread parent message with all properties',
+    },
+    replies: {
+      type: 'json',
+      description: 'Array of reply messages in the thread (excluding the parent)',
+    },
+    replyCount: {
+      type: 'number',
+      description: 'Number of replies returned in this response',
+    },
+    hasMore: {
+      type: 'boolean',
+      description: 'Whether there are more messages in the thread',
+    },
+
     // slack_list_channels outputs (list_channels operation)
     channels: {
       type: 'json',

apps/sim/tools/registry.ts

@@ -1180,6 +1180,8 @@ import {
   slackCanvasTool,
   slackDeleteMessageTool,
   slackDownloadTool,
+  slackGetMessageTool,
+  slackGetThreadTool,
   slackGetUserTool,
   slackListChannelsTool,
   slackListMembersTool,
@@ -1731,6 +1733,8 @@ export const tools: Record<string, ToolConfig> = {
   slack_list_members: slackListMembersTool,
   slack_list_users: slackListUsersTool,
   slack_get_user: slackGetUserTool,
+  slack_get_message: slackGetMessageTool,
+  slack_get_thread: slackGetThreadTool,
   slack_canvas: slackCanvasTool,
   slack_download: slackDownloadTool,
   slack_update_message: slackUpdateMessageTool,

apps/sim/tools/slack/get_message.ts

@@ -0,0 +1,213 @@
+import type { SlackGetMessageParams, SlackGetMessageResponse } from '@/tools/slack/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const slackGetMessageTool: ToolConfig<SlackGetMessageParams, SlackGetMessageResponse> = {
+  id: 'slack_get_message',
+  name: 'Slack Get Message',
+  description:
+    'Retrieve a specific message by its timestamp. Useful for getting a thread parent message.',
+  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-only',
+      description: 'Slack channel ID (e.g., C1234567890)',
+    },
+    timestamp: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Message timestamp to retrieve (e.g., 1405894322.002768)',
+    },
+  },
+
+  request: {
+    url: (params: SlackGetMessageParams) => {
+      const url = new URL('https://slack.com/api/conversations.history')
+      url.searchParams.append('channel', params.channel?.trim() ?? '')
+      url.searchParams.append('oldest', params.timestamp?.trim() ?? '')
+      url.searchParams.append('limit', '1')
+      url.searchParams.append('inclusive', 'true')
+      return url.toString()
+    },
+    method: 'GET',
+    headers: (params: SlackGetMessageParams) => ({
+      '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 === 'missing_scope') {
+        throw new Error(
+          'Missing required permissions. Please reconnect your Slack account with the necessary scopes (channels:history, groups:history).'
+        )
+      }
+      if (data.error === 'invalid_auth') {
+        throw new Error('Invalid authentication. Please check your Slack credentials.')
+      }
+      if (data.error === 'channel_not_found') {
+        throw new Error('Channel not found. Please check the channel ID.')
+      }
+      throw new Error(data.error || 'Failed to get message from Slack')
+    }
+
+    const messages = data.messages || []
+    if (messages.length === 0) {
+      throw new Error('Message not found')
+    }
+
+    const msg = messages[0]
+    const message = {
+      type: msg.type ?? 'message',
+      ts: msg.ts,
+      text: msg.text ?? '',
+      user: msg.user ?? null,
+      bot_id: msg.bot_id ?? null,
+      username: msg.username ?? null,
+      channel: msg.channel ?? null,
+      team: msg.team ?? null,
+      thread_ts: msg.thread_ts ?? null,
+      parent_user_id: msg.parent_user_id ?? null,
+      reply_count: msg.reply_count ?? null,
+      reply_users_count: msg.reply_users_count ?? null,
+      latest_reply: msg.latest_reply ?? null,
+      subscribed: msg.subscribed ?? null,
+      last_read: msg.last_read ?? null,
+      unread_count: msg.unread_count ?? null,
+      subtype: msg.subtype ?? null,
+      reactions: msg.reactions ?? [],
+      is_starred: msg.is_starred ?? false,
+      pinned_to: msg.pinned_to ?? [],
+      files: (msg.files ?? []).map((f: any) => ({
+        id: f.id,
+        name: f.name,
+        mimetype: f.mimetype,
+        size: f.size,
+        url_private: f.url_private ?? null,
+        permalink: f.permalink ?? null,
+        mode: f.mode ?? null,
+      })),
+      attachments: msg.attachments ?? [],
+      blocks: msg.blocks ?? [],
+      edited: msg.edited ?? null,
+      permalink: msg.permalink ?? null,
+    }
+
+    return {
+      success: true,
+      output: {
+        message,
+      },
+    }
+  },
+
+  outputs: {
+    message: {
+      type: 'object',
+      description: 'The retrieved message object',
+      properties: {
+        type: { type: 'string', description: 'Message type' },
+        ts: { type: 'string', description: 'Message timestamp' },
+        text: { type: 'string', description: 'Message text content' },
+        user: { type: 'string', description: 'User ID who sent the message' },
+        bot_id: { type: 'string', description: 'Bot ID if sent by a bot', optional: true },
+        username: { type: 'string', description: 'Display username', optional: true },
+        channel: { type: 'string', description: 'Channel ID', optional: true },
+        team: { type: 'string', description: 'Team ID', optional: true },
+        thread_ts: { type: 'string', description: 'Thread parent timestamp', optional: true },
+        parent_user_id: { type: 'string', description: 'User ID of thread parent', optional: true },
+        reply_count: { type: 'number', description: 'Number of thread replies', optional: true },
+        reply_users_count: {
+          type: 'number',
+          description: 'Number of users who replied',
+          optional: true,
+        },
+        latest_reply: { type: 'string', description: 'Timestamp of latest reply', optional: true },
+        subtype: { type: 'string', description: 'Message subtype', optional: true },
+        reactions: {
+          type: 'array',
+          description: 'Array of reactions on this message',
+          items: {
+            type: 'object',
+            properties: {
+              name: { type: 'string', description: 'Emoji name' },
+              count: { type: 'number', description: 'Number of reactions' },
+              users: {
+                type: 'array',
+                description: 'User IDs who reacted',
+                items: { type: 'string' },
+              },
+            },
+          },
+        },
+        is_starred: { type: 'boolean', description: 'Whether message is starred', optional: true },
+        pinned_to: {
+          type: 'array',
+          description: 'Channel IDs where message is pinned',
+          items: { type: 'string' },
+          optional: true,
+        },
+        files: {
+          type: 'array',
+          description: 'Files attached to message',
+          items: {
+            type: 'object',
+            properties: {
+              id: { type: 'string', description: 'File ID' },
+              name: { type: 'string', description: 'File name' },
+              mimetype: { type: 'string', description: 'MIME type' },
+              size: { type: 'number', description: 'File size in bytes' },
+              url_private: { type: 'string', description: 'Private download URL' },
+              permalink: { type: 'string', description: 'Permanent link to file' },
+            },
+          },
+        },
+        attachments: {
+          type: 'array',
+          description: 'Legacy attachments',
+          items: { type: 'object' },
+        },
+        blocks: { type: 'array', description: 'Block Kit blocks', items: { type: 'object' } },
+        edited: {
+          type: 'object',
+          description: 'Edit information if message was edited',
+          properties: {
+            user: { type: 'string', description: 'User ID who edited' },
+            ts: { type: 'string', description: 'Edit timestamp' },
+          },
+          optional: true,
+        },
+        permalink: { type: 'string', description: 'Permanent link to message', optional: true },
+      },
+    },
+  },
+}

apps/sim/tools/slack/get_thread.ts

@@ -0,0 +1,224 @@
+import type { SlackGetThreadParams, SlackGetThreadResponse } from '@/tools/slack/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const slackGetThreadTool: ToolConfig<SlackGetThreadParams, SlackGetThreadResponse> = {
+  id: 'slack_get_thread',
+  name: 'Slack Get Thread',
+  description:
+    'Retrieve an entire thread including the parent message and all replies. Useful for getting full conversation context.',
+  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-only',
+      description: 'Slack channel ID (e.g., C1234567890)',
+    },
+    threadTs: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Thread timestamp (thread_ts) to retrieve (e.g., 1405894322.002768)',
+    },
+    limit: {
+      type: 'number',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Maximum number of messages to return (default: 100, max: 200)',
+    },
+  },
+
+  request: {
+    url: (params: SlackGetThreadParams) => {
+      const url = new URL('https://slack.com/api/conversations.replies')
+      url.searchParams.append('channel', params.channel?.trim() ?? '')
+      url.searchParams.append('ts', params.threadTs?.trim() ?? '')
+      url.searchParams.append('inclusive', 'true')
+      const limit = params.limit ? Math.min(Number(params.limit), 200) : 100
+      url.searchParams.append('limit', String(limit))
+      return url.toString()
+    },
+    method: 'GET',
+    headers: (params: SlackGetThreadParams) => ({
+      '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 === 'missing_scope') {
+        throw new Error(
+          'Missing required permissions. Please reconnect your Slack account with the necessary scopes (channels:history, groups:history).'
+        )
+      }
+      if (data.error === 'invalid_auth') {
+        throw new Error('Invalid authentication. Please check your Slack credentials.')
+      }
+      if (data.error === 'channel_not_found') {
+        throw new Error('Channel not found. Please check the channel ID.')
+      }
+      if (data.error === 'thread_not_found') {
+        throw new Error('Thread not found. Please check the thread timestamp.')
+      }
+      throw new Error(data.error || 'Failed to get thread from Slack')
+    }
+
+    const rawMessages = data.messages || []
+    if (rawMessages.length === 0) {
+      throw new Error('Thread not found')
+    }
+
+    const messages = rawMessages.map((msg: any) => ({
+      type: msg.type ?? 'message',
+      ts: msg.ts,
+      text: msg.text ?? '',
+      user: msg.user ?? null,
+      bot_id: msg.bot_id ?? null,
+      username: msg.username ?? null,
+      channel: msg.channel ?? null,
+      team: msg.team ?? null,
+      thread_ts: msg.thread_ts ?? null,
+      parent_user_id: msg.parent_user_id ?? null,
+      reply_count: msg.reply_count ?? null,
+      reply_users_count: msg.reply_users_count ?? null,
+      latest_reply: msg.latest_reply ?? null,
+      subscribed: msg.subscribed ?? null,
+      last_read: msg.last_read ?? null,
+      unread_count: msg.unread_count ?? null,
+      subtype: msg.subtype ?? null,
+      reactions: msg.reactions ?? [],
+      is_starred: msg.is_starred ?? false,
+      pinned_to: msg.pinned_to ?? [],
+      files: (msg.files ?? []).map((f: any) => ({
+        id: f.id,
+        name: f.name,
+        mimetype: f.mimetype,
+        size: f.size,
+        url_private: f.url_private ?? null,
+        permalink: f.permalink ?? null,
+        mode: f.mode ?? null,
+      })),
+      attachments: msg.attachments ?? [],
+      blocks: msg.blocks ?? [],
+      edited: msg.edited ?? null,
+      permalink: msg.permalink ?? null,
+    }))
+
+    // First message is always the parent
+    const parentMessage = messages[0]
+    // Remaining messages are replies
+    const replies = messages.slice(1)
+
+    return {
+      success: true,
+      output: {
+        parentMessage,
+        replies,
+        messages,
+        replyCount: replies.length,
+        hasMore: data.has_more ?? false,
+      },
+    }
+  },
+
+  outputs: {
+    parentMessage: {
+      type: 'object',
+      description: 'The thread parent message',
+      properties: {
+        type: { type: 'string', description: 'Message type' },
+        ts: { type: 'string', description: 'Message timestamp' },
+        text: { type: 'string', description: 'Message text content' },
+        user: { type: 'string', description: 'User ID who sent the message' },
+        bot_id: { type: 'string', description: 'Bot ID if sent by a bot', optional: true },
+        username: { type: 'string', description: 'Display username', optional: true },
+        reply_count: { type: 'number', description: 'Total number of thread replies' },
+        reply_users_count: { type: 'number', description: 'Number of users who replied' },
+        latest_reply: { type: 'string', description: 'Timestamp of latest reply' },
+        reactions: {
+          type: 'array',
+          description: 'Array of reactions on the parent message',
+          items: {
+            type: 'object',
+            properties: {
+              name: { type: 'string', description: 'Emoji name' },
+              count: { type: 'number', description: 'Number of reactions' },
+              users: {
+                type: 'array',
+                description: 'User IDs who reacted',
+                items: { type: 'string' },
+              },
+            },
+          },
+        },
+        files: {
+          type: 'array',
+          description: 'Files attached to the parent message',
+          items: {
+            type: 'object',
+            properties: {
+              id: { type: 'string', description: 'File ID' },
+              name: { type: 'string', description: 'File name' },
+              mimetype: { type: 'string', description: 'MIME type' },
+              size: { type: 'number', description: 'File size in bytes' },
+            },
+          },
+        },
+      },
+    },
+    replies: {
+      type: 'array',
+      description: 'Array of reply messages in the thread (excluding the parent)',
+      items: {
+        type: 'object',
+        properties: {
+          ts: { type: 'string', description: 'Message timestamp' },
+          text: { type: 'string', description: 'Message text content' },
+          user: { type: 'string', description: 'User ID who sent the reply' },
+          reactions: { type: 'array', description: 'Reactions on the reply' },
+          files: { type: 'array', description: 'Files attached to the reply' },
+        },
+      },
+    },
+    messages: {
+      type: 'array',
+      description: 'All messages in the thread (parent + replies) in chronological order',
+      items: { type: 'object' },
+    },
+    replyCount: {
+      type: 'number',
+      description: 'Number of replies returned in this response',
+    },
+    hasMore: {
+      type: 'boolean',
+      description: 'Whether there are more messages in the thread (pagination needed)',
+    },
+  },
+}

apps/sim/tools/slack/index.ts

@@ -2,6 +2,8 @@ import { slackAddReactionTool } from '@/tools/slack/add_reaction'
 import { slackCanvasTool } from '@/tools/slack/canvas'
 import { slackDeleteMessageTool } from '@/tools/slack/delete_message'
 import { slackDownloadTool } from '@/tools/slack/download'
+import { slackGetMessageTool } from '@/tools/slack/get_message'
+import { slackGetThreadTool } from '@/tools/slack/get_thread'
 import { slackGetUserTool } from '@/tools/slack/get_user'
 import { slackListChannelsTool } from '@/tools/slack/list_channels'
 import { slackListMembersTool } from '@/tools/slack/list_members'
@@ -22,4 +24,6 @@ export {
   slackListMembersTool,
   slackListUsersTool,
   slackGetUserTool,
+  slackGetMessageTool,
+  slackGetThreadTool,
 }

apps/sim/tools/slack/types.ts

@@ -71,6 +71,17 @@ export interface SlackGetUserParams extends SlackBaseParams {
   userId: string
 }
 
+export interface SlackGetMessageParams extends SlackBaseParams {
+  channel: string
+  timestamp: string
+}
+
+export interface SlackGetThreadParams extends SlackBaseParams {
+  channel: string
+  threadTs: string
+  limit?: number
+}
+
 export interface SlackMessageResponse extends ToolResponse {
   output: {
     // Legacy properties for backward compatibility
@@ -305,6 +316,22 @@ export interface SlackGetUserResponse extends ToolResponse {
   }
 }
 
+export interface SlackGetMessageResponse extends ToolResponse {
+  output: {
+    message: SlackMessage
+  }
+}
+
+export interface SlackGetThreadResponse extends ToolResponse {
+  output: {
+    parentMessage: SlackMessage
+    replies: SlackMessage[]
+    messages: SlackMessage[]
+    replyCount: number
+    hasMore: boolean
+  }
+}
+
 export type SlackResponse =
   | SlackCanvasResponse
   | SlackMessageReaderResponse
@@ -317,3 +344,5 @@ export type SlackResponse =
   | SlackListMembersResponse
   | SlackListUsersResponse
   | SlackGetUserResponse
+  | SlackGetMessageResponse
+  | SlackGetThreadResponse