Slack

• Trigger
  New Channel

  Triggers when a new channel is created in the workspace.

• Trigger
  New Channel (instant)

  Triggers when a new channel is created. Events API event: channel_created.

• Trigger
  New Channel Member

  Triggers when a member joins a chosen channel. Events API event: member_joined_channel.

• Trigger
  New File (instant)

  Triggers when a new file is uploaded to the workspace. Events API event: file_created.

• Trigger
  New Mention (instant)

  Triggers when a username or keyword is mentioned in a channel. Events API message events with keyword filter.

• Trigger
  New Message Posted to Channel

  Triggers when a message is posted to a chosen channel. Events API event: message.channels.

• Trigger
  New Message Posted to Private Channel

  Triggers when a message is posted to a chosen private channel or group DM. Events API events: message.groups, message.mpim.

• Trigger
  New Pinned Item

  Triggers when an item is pinned in a channel.

• Trigger
  New Public Message Posted Anywhere

  Triggers when a message is posted to any public channel. Events API event: message.channels.

• Trigger
  New Reaction Added

  Triggers when an emoji reaction is added to a message. Events API event: reaction_added.

• Trigger
  New Saved Message

  Triggers when a message or file is saved (starred). Events API event: star_added.

• Trigger
  New Team Custom Emoji

  Triggers when a custom emoji is added to the workspace. Events API event: emoji_changed.

• Trigger
  New Thread Reply

  Triggers when a new reply is added to a message thread.

• Trigger
  New User

  Triggers when a new user joins the workspace. Polling; deduped by user id.

• Trigger
  New User (instant)

  Triggers when a new user joins the workspace. Events API event: team_join.

• Action
  Add Bookmark

  Add a bookmark to a channel.

• Action
  Add Reaction

  Add an emoji reaction to a message.

• Action
  Add Star

  Save a message or file by starring it.

• Action
  Archive Channel

  Archive a channel.

• Action
  Complete Reminder

  Mark a reminder as complete.

• Action
  Create Canvas

  Create a standalone canvas document.

• Action
  Create Channel

  Create a new public or private channel.

• Action
  Create Channel Canvas

  Create a canvas attached to a channel.

• Action
  Create Reminder

  Create a reminder for a user at a specified time.

• Action
  Delete Canvas

  Delete a canvas.

• Action
  Delete File

  Delete a file from the workspace.

• Action
  Delete Message

  Delete a message from a channel by timestamp.

• Action
  Delete Reminder

  Delete a reminder.

• Action
  Delete Scheduled Message

  Cancel a scheduled message before it is sent.

• Action
  Edit Bookmark

  Edit an existing channel bookmark.

• Action
  Edit Canvas

  Edit the content of a canvas.

• Action
  Find Channel by Name

  List channels filtered to locate a channel by name (client filters the returned list).

• Action
  Find User by Email

  Look up a Slack user by their email address.

• Action
  Get Channel Messages

  Fetch the message history of a channel.

• Action
  Get File Info

  Get information about a file.

• Action
  Get Message Permalink

  Get a permanent link to a specific message.

• Action
  Get Message Reactions

  Get the emoji reactions on a message.

• Action
  Get Reminder

  Get information about a reminder.

• Action
  Get Team Info

  Get information about the workspace.

• Action
  Get Thread Replies

  Get the replies in a message thread.

• Action
  Get User Info

  Get profile information for a Slack user by ID.

• Action
  Get User Presence

  Get a user's current presence status.

• Action
  Get User Profile

  Get a user's profile fields.

• Action
  Invite User to Channel

  Invite one or more users to a channel (comma-separated user IDs).

• Action
  Join Channel

  Join a public channel.

• Action
  Leave Channel

  Leave a channel.

• Action
  List Bookmarks

  List the bookmarks in a channel.

• Action
  List Channel Members

  List the members of a channel.

• Action
  List Channels

  List channels in the workspace (public and private).

• Action
  List Custom Emojis

  List the workspace's custom emojis.

• Action
  List Files

  List files in the workspace, optionally filtered by channel or user.

• Action
  List Pinned Items

  List the items pinned in a channel.

• Action
  List Scheduled Messages

  List messages scheduled to be sent later.

• Action
  List User Groups

  List the workspace's user groups.

• Action
  List Users

  List all users in the workspace.

• Action
  List User's Channels

  List the channels a user is a member of.

• Action
  Mark Channel Read

  Set the read cursor position in a channel.

• Action
  Pin Message

  Pin a message to a channel.

• Action
  Remove Bookmark

  Remove a bookmark from a channel.

• Action
  Remove Reaction

  Remove an emoji reaction from a message.

• Action
  Remove Star

  Remove a star from a message or file.

• Action
  Remove User from Channel

  Remove a member from a channel.

• Action
  Rename Channel

  Rename a channel.

• Action
  Schedule Message

  Schedule a message to be sent to a channel at a future Unix time.

• Action
  Search Files

  Search files across the workspace.

• Action
  Search Messages

  Search messages across the workspace.

• Action
  Send Direct Message

  Open a DM with a user and post a message to it.

• Action
  Send Ephemeral Message

  Send a message in a channel that is visible only to one user.

• Action
  Send Message

  Post a message to a channel, private group, or DM.

• Action
  Set Channel Purpose

  Set the purpose (description) for a channel.

• Action
  Set Channel Topic

  Set the topic for a channel.

• Action
  Set User Presence

  Set the authenticated user's presence status.

• Action
  Unarchive Channel

  Restore an archived channel.

• Action
  Unpin Message

  Remove a pinned message from a channel.

• Action
  Update Message

  Update an existing message in a channel by timestamp.

• Action
  Upload File

  Upload a file and share it to one or more channels.

No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.