Can I use Slack as a CLI?

Yes. KosmoKrator exposes a Slack CLI through kosmo integrations:call and the provider shortcut command. Commands can return JSON for scripts, CI, and coding agents.

Can I expose Slack through MCP?

Yes. The KosmoKrator MCP gateway can expose selected Slack tools to clients such as Claude Code, Cursor, Codex, and other MCP-compatible tools.

Where are Slack credentials stored?

Slack credentials are configured in KosmoKrator's local integration settings and reused by CLI, Lua, and MCP gateway surfaces.

Can I deny write access for Slack MCP tools?

Yes. Start the gateway with --write=deny for read-only clients, or use ask/allow only for trusted workspaces.

productivity

Slack MCP, CLI, and Lua Integration for AI Agents

Slack integration docs for AI agents: MCP gateway setup, Slack CLI commands, Lua API reference, credentials, and function schemas.

Slack for agents

Credentials can be configured manually in web or CLI hosts.

Use this integration from Lua code mode, the headless integrations CLI, or the KosmoKrator MCP gateway. The same package metadata powers all three surfaces.

Agent Surfaces

Slack CLIHeadless setup, JSON output, direct function calls. Slack MCPExpose selected tools to local MCP clients. Slack LuaAgent-facing namespace and Lua reference. FeedbackReport missing tools, auth issues, or bad metadata.

Machine-Readable Metadata

integration_slug: slack
route_slug: slack
package: slack
auth_strategy: api_token
cli_setup_supported: true
cli_runtime_supported: true
mcp_gateway_supported: true
lua_supported: true

Function Catalog

Function	Type	Parameters	Description
`slack.slack_send_message`	Write `write`	7	Send a message to a Slack channel or DM. Supports text, blocks, and thread replies.
`slack.slack_update_message`	Write `write`	4	Update an existing Slack message.
`slack.slack_delete_message`	Write `write`	2	Delete a message from a Slack channel.
`slack.slack_get_message`	Read `read`	3	Get a specific message by its timestamp. Optionally fetch a message within a thread.
`slack.slack_search_messages`	Read `read`	5	Search for messages across all Slack channels and DMs.
`slack.slack_get_permalink`	Read `read`	2	Get a permalink URL for a specific Slack message.
`slack.slack_get_channel_history`	Read `read`	5	Get message history for a Slack channel. Supports pagination with cursors.
`slack.slack_get_thread_replies`	Read `read`	4	Get all replies in a Slack message thread.
`slack.slack_list_channels`	Read `read`	4	List all Slack channels the bot has access to.
`slack.slack_get_channel`	Read `read`	1	Get detailed information about a Slack channel.
`slack.slack_create_channel`	Write `write`	2	Create a new Slack channel.
`slack.slack_set_topic`	Write `write`	2	Set the topic for a Slack channel.
`slack.slack_set_purpose`	Write `write`	2	Set the purpose for a Slack channel.
`slack.slack_archive_channel`	Write `write`	1	Archive a Slack channel.
`slack.slack_invite_to_channel`	Write `write`	2	Invite one or more users to a Slack channel.
`slack.slack_upload_file`	Write `write`	6	Upload a file to Slack using the modern external upload flow. The file content is posted to a channel or as a thread reply.
`slack.slack_list_files`	Read `read`	5	List files in Slack, optionally filtered by channel, user, or file type.
`slack.slack_get_file`	Read `read`	1	Get detailed information about a Slack file.
`slack.slack_list_users`	Read `read`	3	List all users in the Slack workspace.
`slack.slack_get_user`	Read `read`	1	Get detailed information about a Slack user by their user ID.
`slack.slack_find_user_by_email`	Read `read`	1	Look up a Slack user by their email address.
`slack.slack_add_reaction`	Write `write`	3	Add an emoji reaction to a Slack message.
`slack.slack_remove_reaction`	Write `write`	3	Remove an emoji reaction from a Slack message.
`slack.slack_list_usergroups`	Read `read`	3	List all usergroups in the Slack workspace.
`slack.slack_update_usergroup_members`	Write `write`	2	Update the members of a Slack usergroup.