Before accessing any Slack tools, connect your Slack workspace via the App Connection page. Without this, tool calls will fail due to missing authorization.
Slack Tool Categories
Messaging & Reactions
SLACK_SENDS_A_MESSAGE_TO_A_SLACK_CHANNEL– Posts a message to a Slack channel, direct message, or private group; requires content viatext,blocks, orattachments.SLACK_SCHEDULES_A_MESSAGE_TO_A_CHANNEL_AT_A_SPECIFIED_TIME– Schedules a message to a Slack channel, DM, or private group for a future time (post at), requiringtext,blocks, orattachmentsfor content; scheduling is limited to 120 days in advance.SLACK_UPDATES_A_SLACK_MESSAGE– Updates a Slack message, identified bychannelid andtstimestamp, by modifying itstext,attachments, orblocks; provide at least one content field, notingattachments/blocksare replaced if included ([]clears them).SLACK_CHAT_DELETE_MESSAGE– Deletes a message from a Slack channel.SLACK_ADD_REACTION_TO_AN_ITEM– Adds a specified emoji reaction to an existing message in a Slack channel, identified by its timestamp; does not remove or retrieve reactions.SLACK_REMOVE_REACTION_FROM_ITEM– Removes an emoji reaction from a message, file, or file comment in Slack.SLACK_ADD_A_STAR_TO_AN_ITEM– Stars a channel, file, file comment, or a specific message in Slack.
Reminders & Do Not Disturb
SLACK_CREATE_A_REMINDER– Creates a Slack reminder with specified text and time; time accepts unix timestamps, seconds from now, or natural language (e.g., ‘in 15 minutes’, ‘every thursday at 2pm’).SLACK_ACTIVATE_OR_MODIFY_DO_NOT_DISTURB_DURATION– Sets or updates the do not disturb (dnd) snooze duration in minutes for the authenticated user, pausing notifications immediately for the specified time.
Channels, Groups & Conversations
SLACK_LIST_ALL_SLACK_TEAM_CHANNELS_WITH_VARIOUS_FILTERS– Retrieves public channels, private channels, multi-person direct messages (mpims), and direct messages (ims) from a Slack workspace, with options to filter by type and exclude archived channels.SLACK_CONVERSATIONS_CREATE_CHANNEL– Creates a new Slack channel.SLACK_CONVERSATIONS_ARCHIVE_CHANNEL– Archives a Slack conversation channel.SLACK_CONVERSATIONS_INVITE_USERS– Invites users to a Slack channel.SLACK_CONVERSATIONS_JOIN_CHANNEL– Joins a user to a Slack channel.SLACK_CONVERSATIONS_KICK_USER– Removes a user from a Slack channel.SLACK_CONVERSATIONS_LEAVE_CHANNEL– Leaves a Slack channel.SLACK_CONVERSATIONS_MEMBERS– Lists members of a Slack conversation.SLACK_CONVERSATIONS_RENAME_CHANNEL– Renames a Slack channel.SLACK_CONVERSATIONS_SET_PURPOSE– Sets the purpose of a Slack channel.SLACK_CONVERSATIONS_SET_TOPIC– Sets the topic of a Slack channel.SLACK_CONVERSATIONS_CLOSE– Closes a direct message or multi-person direct message.
Users & Teams
SLACK_LIST_ALL_SLACK_TEAM_USERS_WITH_PAGINATION– Retrieves a paginated list of all users, including comprehensive details, profile information, status, and team memberships, in a Slack workspace; data may not be real-time.SLACK_ADD_ENTERPRISE_USER_TO_WORKSPACE– Assigns an existing enterprise user, not already in the target workspace, to a specific Slack workspace within an enterprise grid organization, optionally adding them to channels and defining their guest status.
Emoji & Reactions
SLACK_ADD_AN_EMOJI_ALIAS_IN_SLACK– Adds an alias for an existing custom emoji in a Slack enterprise grid organization.SLACK_ADD_A_CUSTOM_EMOJI_TO_A_SLACK_TEAM– Adds a custom emoji to a Slack workspace given a unique name and an image url; subject to workspace emoji limits.SLACK_EMOJI_LIST– Lists all custom emoji in a Slack workspace.
Files & External Content
SLACK_ADD_A_REMOTE_FILE_FROM_A_SERVICE– Adds a reference to an external file (e.g., Google Drive, Dropbox) to Slack for discovery and sharing, requiring a uniqueexternal idand anexternal urlaccessible by Slack.SLACK_FILES_UPLOAD– Uploads a file to Slack.SLACK_FILES_DELETE– Deletes a file from Slack.SLACK_FILES_INFO– Gets information about a Slack file.SLACK_FILES_LIST– Lists files in a Slack workspace.SLACK_FILES_SHARED_PUBLIC_URL– Creates a public URL for a Slack file.SLACK_FILES_REVOKE_PUBLIC_URL– Revokes a public URL for a Slack file.
App Management & Admin
SLACK_APPROVE_AN_APP_INSTALLATION_IN_A_WORKSPACE– Approves a pending app installation request within a Slack workspace; requires admin privileges.SLACK_APPROVE_WORKSPACE_INVITE_REQUEST– Approves an existing, pending invite request for a Slack workspace; this action is irreversible.SLACK_BULK_EXPORTS_ALL_WORKSPACE_MESSAGES– Initiates an export of all messages and files in a Slack workspace; restricted to workspace owners and admins.SLACK_BULK_EXPORTS_PUBLIC_CHANNEL_MESSAGES– Exports messages from public channels in a Slack workspace; limited to owners/admins.
Miscellaneous & Utilities
SLACK_CHAT_GET_PERMALINK– Retrieves a permalink URL for a specific Slack message.SLACK_CHAT_SCHEDULE_MESSAGE– Schedules a message to be posted in the future.SLACK_CHAT_UNSCHEDULE_MESSAGE– Cancels a scheduled message before it’s posted.SLACK_MARK_MESSAGE_AS_READ– Marks a message as read in Slack.SLACK_USERS_GET_PRESENCE– Gets the presence status of a user.SLACK_VIEWS_OPEN– Opens a Slack view (modal).SLACK_VIEWS_PUBLISH– Publishes a Slack view.SLACK_VIEWS_UPDATE– Updates a Slack view.SLACK_ASYNC_ACTION_ENDPOINT_FOR_INTERACTIVE_COMPONENTS– Handles callbacks from Slack interactive components (buttons, menus, dialogs) asynchronously via a request URL.SLACK_CALLS_AN_API_METHOD– Generic method to call any Slack API endpoint with parameters.
Usage Notes
- Handle channel, user, and message IDs carefully to avoid errors.
- Use scheduling, reminders, and DND tools to automate notifications and focus time.
- Combine messaging, file, and admin tools for advanced Slack automation.