feat(slack): assistant thread ops, paginated history/replies, and permalink (#4934)

* feat(slack): add assistant thread ops, paginated history/replies, and permalink

- New tools: slack_set_status, slack_set_title, slack_set_suggested_prompts
  (assistant.threads.*), slack_get_channel_history + slack_get_thread_replies
  (paginated conversations.history/replies via directExecution), slack_get_permalink
- Wire all six as Slack block operations with subBlocks, conditions, params, outputs
- Add scopes: assistant:write, im:history, mpim:read, mpim:history (+ consent labels)
- Add manifest capabilities: action_read_history, action_assistant
- Fix invite_to_conversation no_user error code; widen DM history scope hints
- Regenerate tool docs and integrations catalog

* fix(slack): correct thread parent on cursor-resume, complete DM scope hints, reject empty suggested prompts

- get_thread_replies: identify thread parent by ts === thread_ts instead of
  assuming index 0, so cursor-resumed pages (which omit the parent) no longer
  mislabel a reply as the parent
- get_channel_history + get_thread_replies: include im:history/mpim:history in
  the missing_scope hint to match the OAuth grant and DM/MPIM reads
- set_suggested_prompts: throw a clear error when no valid prompt is provided
  instead of silently calling Slack with an empty prompts array

* fix(slack): guard non-numeric limit/maxPages; drop ungranted im/mpim history scopes

- Add resolvePositiveInt helper and use it for limit/maxPages in
  get_channel_history and get_thread_replies, so a non-numeric value (e.g. from
  an LLM) no longer becomes NaN and silently disables pagination (returning an
  empty success)
- Remove im:history/mpim:read/mpim:history from the Slack OAuth grant — the Slack
  app does not have these scopes; assistant:write is the only added scope
- Drop the explanatory inline comment in get_thread_replies

* improvement(slack): move history pagination cursor/maxPages to advanced mode

Matches the existing paginationCursor convention in the block — keeps the basic
UI focused on channel + time filters while pagination internals live under
advanced.

* fix(slack): narrow set_status missing_scope hint to assistant:write

A user hitting missing_scope on set_status already has chat:write (long
granted); the scope they actually need is assistant:write, which is also what
set_title/set_suggested_prompts point to. Narrow the hint to assistant:write for
accurate, consistent guidance.

Author: waleedlatif1

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

@@ -33,6 +33,12 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
         { label: 'Read Messages', id: 'read' },
         { label: 'Get Message', id: 'get_message' },
         { label: 'Get Thread', id: 'get_thread' },
+        { label: 'Get Thread Replies', id: 'get_thread_replies' },
+        { label: 'Get Channel History', id: 'get_channel_history' },
+        { label: 'Get Message Permalink', id: 'get_permalink' },
+        { label: 'Set Assistant Status', id: 'set_status' },
+        { label: 'Set Assistant Title', id: 'set_title' },
+        { label: 'Set Suggested Prompts', id: 'set_suggested_prompts' },
         { label: 'List Channels', id: 'list_channels' },
         { label: 'List Channel Members', id: 'list_members' },
         { label: 'List Users', id: 'list_users' },
@@ -548,7 +554,7 @@ Do not include any explanations, markdown formatting, or other text outside the
       placeholder: 'Message timestamp (e.g., 1405894322.002768)',
       condition: {
         field: 'operation',
-        value: 'get_message',
+        value: ['get_message', 'get_permalink'],
       },
       required: true,
       wandConfig: {
@@ -574,7 +580,13 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
       placeholder: 'Thread timestamp (thread_ts, e.g., 1405894322.002768)',
       condition: {
         field: 'operation',
-        value: 'get_thread',
+        value: [
+          'get_thread',
+          'get_thread_replies',
+          'set_status',
+          'set_title',
+          'set_suggested_prompts',
+        ],
       },
       required: true,
       wandConfig: {
@@ -602,6 +614,152 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
         value: 'get_thread',
       },
     },
+    // Set Assistant Status specific fields
+    {
+      id: 'status',
+      title: 'Status Text',
+      type: 'short-input',
+      placeholder: 'e.g., Working on it… (leave empty to clear)',
+      condition: {
+        field: 'operation',
+        value: 'set_status',
+      },
+      required: false,
+    },
+    {
+      id: 'loadingMessages',
+      title: 'Loading Messages',
+      type: 'long-input',
+      placeholder: 'Optional JSON array of phrases to animate (max 10)',
+      condition: {
+        field: 'operation',
+        value: 'set_status',
+      },
+      required: false,
+    },
+    // Set Assistant Title specific fields
+    {
+      id: 'assistantTitle',
+      title: 'Thread Title',
+      type: 'short-input',
+      placeholder: 'Title to display for the assistant thread',
+      condition: {
+        field: 'operation',
+        value: 'set_title',
+      },
+      required: true,
+    },
+    // Set Suggested Prompts specific fields
+    {
+      id: 'suggestedPrompts',
+      title: 'Suggested Prompts',
+      type: 'long-input',
+      placeholder: '[{"title": "Summarize", "message": "Summarize this thread"}]',
+      condition: {
+        field: 'operation',
+        value: 'set_suggested_prompts',
+      },
+      required: true,
+      wandConfig: {
+        enabled: true,
+        prompt: `Generate a JSON array of Slack assistant suggested prompts from the user's description.
+Each entry must be an object with exactly two string fields:
+- "title": the short label shown on the clickable chip
+- "message": the full message sent into the thread when the chip is clicked
+Return at most 4 prompts.
+Example:
+[{"title": "Summarize", "message": "Summarize the key points of this thread"}, {"title": "Next steps", "message": "What are the next steps?"}]
+
+Return ONLY the JSON array - no explanations, no quotes around the array, no extra text.`,
+        placeholder: 'Describe the prompts you want (e.g., "summarize and list action items")...',
+        generationType: 'json-object',
+      },
+    },
+    {
+      id: 'promptsTitle',
+      title: 'Prompts Heading',
+      type: 'short-input',
+      placeholder: 'e.g., Suggested Prompts (optional)',
+      condition: {
+        field: 'operation',
+        value: 'set_suggested_prompts',
+      },
+      mode: 'advanced',
+      required: false,
+    },
+    // Get Channel History / Get Thread Replies shared pagination fields
+    {
+      id: 'historyOldest',
+      title: 'Oldest Timestamp',
+      type: 'short-input',
+      placeholder: 'Unix seconds, e.g., 1700000000 (only messages after)',
+      condition: {
+        field: 'operation',
+        value: ['get_channel_history', 'get_thread_replies'],
+      },
+      required: false,
+    },
+    {
+      id: 'historyLatest',
+      title: 'Latest Timestamp',
+      type: 'short-input',
+      placeholder: 'Unix seconds, e.g., 1700000000 (only messages before)',
+      condition: {
+        field: 'operation',
+        value: ['get_channel_history', 'get_thread_replies'],
+      },
+      required: false,
+    },
+    {
+      id: 'historyLimit',
+      title: 'Page Size',
+      type: 'short-input',
+      placeholder: '200 (max 999)',
+      condition: {
+        field: 'operation',
+        value: ['get_channel_history', 'get_thread_replies'],
+      },
+      required: false,
+    },
+    {
+      id: 'historyMaxPages',
+      title: 'Max Pages',
+      type: 'short-input',
+      placeholder: '10',
+      mode: 'advanced',
+      condition: {
+        field: 'operation',
+        value: ['get_channel_history', 'get_thread_replies'],
+      },
+      required: false,
+    },
+    {
+      id: 'historyCursor',
+      title: 'Start Cursor',
+      type: 'short-input',
+      placeholder: 'Resume from a previous nextCursor',
+      mode: 'advanced',
+      condition: {
+        field: 'operation',
+        value: ['get_channel_history', 'get_thread_replies'],
+      },
+      required: false,
+    },
+    {
+      id: 'historyInclusive',
+      title: 'Inclusive',
+      type: 'dropdown',
+      options: [
+        { label: 'No', id: 'false' },
+        { label: 'Yes', id: 'true' },
+      ],
+      value: () => 'false',
+      condition: {
+        field: 'operation',
+        value: ['get_channel_history', 'get_thread_replies'],
+      },
+      required: false,
+    },
     {
       id: 'oldest',
       title: 'Oldest Timestamp',
@@ -1196,6 +1354,12 @@ Do not include any explanations, markdown formatting, or other text outside the
       'slack_message_reader',
       'slack_get_message',
       'slack_get_thread',
+      'slack_get_thread_replies',
+      'slack_get_channel_history',
+      'slack_get_permalink',
+      'slack_set_status',
+      'slack_set_title',
+      'slack_set_suggested_prompts',
       'slack_list_channels',
       'slack_list_members',
       'slack_list_users',
@@ -1235,6 +1399,18 @@ Do not include any explanations, markdown formatting, or other text outside the
             return 'slack_get_message'
           case 'get_thread':
             return 'slack_get_thread'
+          case 'get_thread_replies':
+            return 'slack_get_thread_replies'
+          case 'get_channel_history':
+            return 'slack_get_channel_history'
+          case 'get_permalink':
+            return 'slack_get_permalink'
+          case 'set_status':
+            return 'slack_set_status'
+          case 'set_title':
+            return 'slack_set_title'
+          case 'set_suggested_prompts':
+            return 'slack_set_suggested_prompts'
           case 'list_channels':
             return 'slack_list_channels'
           case 'list_members':
@@ -1318,6 +1494,17 @@ Do not include any explanations, markdown formatting, or other text outside the
           getMessageTimestamp,
           getThreadTimestamp,
           threadLimit,
+          status,
+          loadingMessages,
+          assistantTitle,
+          suggestedPrompts,
+          promptsTitle,
+          historyOldest,
+          historyLatest,
+          historyLimit,
+          historyMaxPages,
+          historyCursor,
+          historyInclusive,
           includeNumMembers,
           presenceUserId,
           editCanvasId,
@@ -1438,6 +1625,65 @@ Do not include any explanations, markdown formatting, or other text outside the
             break
           }
 
+          case 'set_status': {
+            baseParams.threadTs = getThreadTimestamp
+            baseParams.status = status ?? ''
+            if (loadingMessages) {
+              baseParams.loadingMessages = loadingMessages
+            }
+            break
+          }
+
+          case 'set_title': {
+            baseParams.threadTs = getThreadTimestamp
+            baseParams.title = assistantTitle
+            break
+          }
+
+          case 'set_suggested_prompts': {
+            baseParams.threadTs = getThreadTimestamp
+            baseParams.prompts = suggestedPrompts
+            if (promptsTitle) {
+              baseParams.promptsTitle = promptsTitle
+            }
+            break
+          }
+
+          case 'get_permalink': {
+            baseParams.messageTs = getMessageTimestamp
+            break
+          }
+
+          case 'get_channel_history':
+          case 'get_thread_replies': {
+            if (operation === 'get_thread_replies') {
+              baseParams.threadTs = getThreadTimestamp
+            }
+            if (historyOldest) {
+              baseParams.oldest = String(historyOldest).trim()
+            }
+            if (historyLatest) {
+              baseParams.latest = String(historyLatest).trim()
+            }
+            if (historyLimit) {
+              const parsedLimit = Number.parseInt(historyLimit, 10)
+              if (!Number.isNaN(parsedLimit) && parsedLimit > 0) {
+                baseParams.limit = parsedLimit
+              }
+            }
+            if (historyMaxPages) {
+              const parsedMaxPages = Number.parseInt(historyMaxPages, 10)
+              if (!Number.isNaN(parsedMaxPages) && parsedMaxPages > 0) {
+                baseParams.maxPages = parsedMaxPages
+              }
+            }
+            if (historyCursor) {
+              baseParams.cursor = String(historyCursor).trim()
+            }
+            baseParams.inclusive = historyInclusive === 'true'
+            break
+          }
+
           case 'list_channels': {
             baseParams.includePrivate = includePrivate !== 'false'
             baseParams.excludeArchived = true
@@ -1682,6 +1928,36 @@ Do not include any explanations, markdown formatting, or other text outside the
       type: 'string',
       description: 'Maximum number of messages to return from thread',
     },
+    // Set Assistant Status inputs
+    status: { type: 'string', description: 'Status text to display (empty clears the status)' },
+    loadingMessages: {
+      type: 'json',
+      description: 'Optional array of phrases to animate as a loading indicator (max 10)',
+    },
+    // Set Assistant Title inputs
+    assistantTitle: { type: 'string', description: 'Title to display for the assistant thread' },
+    // Set Suggested Prompts inputs
+    suggestedPrompts: {
+      type: 'json',
+      description: 'Array of { title, message } prompt objects (max 4)',
+    },
+    promptsTitle: { type: 'string', description: 'Optional heading for the prompt list' },
+    // Get Channel History / Get Thread Replies inputs
+    historyOldest: {
+      type: 'string',
+      description: 'Only include messages after this Unix timestamp',
+    },
+    historyLatest: {
+      type: 'string',
+      description: 'Only include messages before this Unix timestamp',
+    },
+    historyLimit: { type: 'string', description: 'Messages to request per page (max 999)' },
+    historyMaxPages: { type: 'string', description: 'Maximum number of pages to fetch' },
+    historyCursor: { type: 'string', description: 'Pagination cursor to resume from' },
+    historyInclusive: {
+      type: 'string',
+      description: 'Include messages matching oldest/latest (true/false)',
+    },
     // Get Channel Info inputs
     includeNumMembers: { type: 'string', description: 'Include member count (true/false)' },
     // Get User Presence inputs
@@ -1808,6 +2084,22 @@ Do not include any explanations, markdown formatting, or other text outside the
       description: 'Whether there are more messages in the thread',
     },
 
+    // slack_get_channel_history / slack_get_thread_replies pagination outputs
+    pages: {
+      type: 'number',
+      description: 'Number of pages fetched during a paginated history/replies read',
+    },
+    threadTs: {
+      type: 'string',
+      description: 'Thread timestamp an assistant status/title/prompts op was set on',
+    },
+
+    // slack_get_permalink outputs (get_permalink operation)
+    permalink: {
+      type: 'string',
+      description: 'Permalink URL to the message',
+    },
+
     // slack_list_channels outputs (list_channels operation)
     channels: {
       type: 'json',