Slack

28 actions for messaging, channels, reactions, search, and user management.

Messages

`send_message`

Parameter	Type	Required	Description
`channel`	string	yes	Channel ID or name
`text`	string	yes	Message text
`blocks`	array	no	Block Kit blocks

exec("slack.send_message", {
  channel: "#engineering",
  text: "Deploy v2.1 complete ✅"
})

`reply_thread`

Parameter	Type	Required	Description
`channel`	string	yes	Channel containing the thread
`thread_ts`	string	yes	Timestamp of parent message
`text`	string	yes	Reply text

`update_message`

Parameter	Type	Required
`channel`	string	yes
`ts`	string	yes
`text`	string	yes
`blocks`	array	no

`delete_message`

Parameter	Type	Required
`channel`	string	yes
`ts`	string	yes

`schedule_message`

Schedule a message up to 120 days in the future.

Parameter	Type	Required	Description
`channel`	string	yes	Channel to post in
`text`	string	yes	Message text
`post_at`	number	yes	Unix timestamp for delivery

`get_permalink`

Get a permanent URL for a message.

Parameter	Type	Required
`channel`	string	yes
`message_ts`	string	yes

Reading

`get_channel_history`

Get recent messages from a channel.

Parameter	Type	Required	Description
`channel`	string	yes	Channel ID
`limit`	number	no	Max messages to return
`oldest`	string	no	Start timestamp (Unix)
`latest`	string	no	End timestamp (Unix)

`get_thread_replies`

Parameter	Type	Required	Description
`channel`	string	yes	Channel containing the thread
`ts`	string	yes	Parent message timestamp
`limit`	number	no	Max replies to return

`search_messages`

Search messages with Slack query syntax.

Parameter	Type	Required	Description
`query`	string	yes	Slack search query (supports `in:#channel`, `from:@user`, etc.)
`count`	number	no	Max results
`sort`	string	no	`"score"` or `"timestamp"`

exec("slack.search_messages", {
  query: "deploy failed in:#engineering",
  sort: "timestamp"
})

Reactions

`add_reaction`

Parameter	Type	Required	Description
`channel`	string	yes	Channel
`timestamp`	string	yes	Message timestamp
`name`	string	yes	Emoji name (e.g. `"thumbsup"`, `"white_check_mark"`)

`remove_reaction`

Parameter	Type	Required
`channel`	string	yes
`timestamp`	string	yes
`name`	string	yes

`get_reactions`

Parameter	Type	Required
`channel`	string	yes
`timestamp`	string	yes

Channels

`get_channel`

Parameter	Type	Required
`channel`	string	yes

`list_channels`

No parameters. Returns all public and private channels.

`create_channel`

Parameter	Type	Required	Description
`name`	string	yes	Channel name
`is_private`	boolean	no	Private channel?

`archive_channel`

Parameter	Type	Required
`channel`	string	yes

`invite_to_channel`

Parameter	Type	Required	Description
`channel`	string	yes	Channel ID
`users`	string	yes	Comma-separated user IDs

`kick_from_channel`

Parameter	Type	Required
`channel`	string	yes
`user`	string	yes

`list_channel_members`

Parameter	Type	Required
`channel`	string	yes

`set_topic`

Parameter	Type	Required
`channel`	string	yes
`topic`	string	yes

Direct Messages

`open_conversation`

Open a DM or group DM. Returns the channel ID for sending messages.

Parameter	Type	Required	Description
`users`	string	yes	Comma-separated user IDs

Users

`get_user_info`

Parameter	Type	Required
`user`	string	yes

`list_users`

No parameters. Returns all workspace users.

Pins

`pin_message`

Parameter	Type	Required
`channel`	string	yes
`timestamp`	string	yes

`unpin_message`

Parameter	Type	Required
`channel`	string	yes
`timestamp`	string	yes

`list_pins`

Parameter	Type	Required
`channel`	string	yes