Slack

Registers new participants added to a Slack call.

Adds a custom emoji to a Slack workspace given a unique name and an image URL; subject to workspace emoji limits.

Adds an alias for an existing custom emoji in a Slack Enterprise Grid organization.

Adds an Enterprise user to a workspace. Use when you need to assign an existing Enterprise Grid user to a specific workspace with optional guest restrictions.

Adds a specified emoji reaction to an existing message in a Slack channel, identified by its timestamp; does not remove or retrieve reactions.

Adds a reference to an external file (e.g., Google Drive, Dropbox) to Slack for discovery and sharing, requiring a unique `external_id` and an `external_url` accessible by Slack.

Stars a channel, file, file comment, or a specific message in Slack.

Tool to search for public or private channels in an Enterprise organization. Use when you need to find channels by name, type, or other criteria within an Enterprise Grid workspace.

Tool to check API calling code by testing connectivity and authentication to the Slack API. Use when you need to verify that API credentials are valid and the connection is working properly.

Archives a Slack conversation by its ID, rendering it read-only and hidden while retaining history, ideal for cleaning up inactive channels; be aware that some channels (like #general or certain DMs) cannot be archived and this may impact connected integrations.

Search Slack messages, files, channels, and users via Real-time Search API. For queries referencing entities by name (users/channels/files), first resolve with content_types (users/channels/files) to get exact ID. If multiple matches, ask user to clarify before proceeding (e.g. ask for user email).

Check if semantic (AI-powered) search is available on the Slack workspace. Returns whether natural language queries will trigger semantic search in assistant.search.context calls.