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Use Slack as a messaging channel for your agent. Users can DM or @mention the bot. Novu keeps thread context, shows typing and plan cards during the turn, can attach files on replies, and can post Approve / Deny cards before gated tools run.

Capabilities

Full matrix: Channels overview.

Examples

Inbound thread

A user @mentions the agent in a thread. Novu adds an eyes reaction, shows typing and a plan card while the agent runs tools, then replies in the same thread with optional action buttons.

Tool approval

When a tool is gated, Slack shows a native approval block (Deny, Approve once, Always allow this tool). The handler resumes after the user selects an option.

Create a Slack app

When the dashboard or CLI asks for a Slack App Configuration Token:
  1. Open Slack API apps.
  2. Under Your App Configuration Tokens, click Generate Token.
Generate Slack token
  1. Select your workspace and click Generate.
  2. Copy the token (starts with xoxe.xoxp-) and paste it into Novu or the CLI.
  3. Finish the install / Allow flow in Slack.
Install app The configuration token is used once to create the Slack app. Novu does not store it.

Setup

Connect component

Use SlackConnectButton from @novu/react so end users can install the Slack app and link it to your agent from your product UI.
Props and appearance options: Connect components.

Reply

Plain text, markdown, and interactive cards.

Typing indicator

Custom status text while the handler runs.

Tool approval

Approve / Deny before tools execute.

Edit sent messages

Update a sent message in place.

Connect components

SlackConnectButton props and appearance.