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Connect Slack

This guide walks you through connecting Slack to Lucien.

No technical expertise is required – the main choices are which workspace to install in and which channels Lucien should be allowed to participate in.

Tip: Although we specifically mention "channels" in this guide, Lucien can participate in private groups too. It behaves identically across channels and groups.


1. Start from the Lucien app

  1. In the Lucien dashboard, go to Integrations.
  2. Find Slack in the list.
  3. Click Connect.

You’ll be redirected to Slack’s official "Add to Slack" / OAuth page.


2. Choose the right Slack workspace

On Slack’s authorization screen:

  1. Make sure the workspace selector at the top is set to the workspace where your team actually operates.
  2. If you’re a member of multiple workspaces, double‑check the name and URL before continuing.

If you don’t see the right workspace, click "Sign in to another workspace" in Slack and log in there first.


3. Review the permissions

Slack will show you what the Lucien app is asking for. In plain language, this typically includes:

  • Permission to read messages in channels where the app is present (when you add it).
  • Permission to post messages as the Lucien bot.
  • Basic workspace info like team name and channel IDs.

Lucien uses this access to build a useful memory of decisions, risks, plans and other crucial company context.

Click Allow to finish installation.

You can remove the app at any time from Slack’s Apps section or from Lucien’s Integrations page.


4. Pick which channels Lucien can see

By default, Lucien only sees channels where the Lucien app has been added.

To add Lucien to a channel:

  1. In Slack, open the channel (for example: #sales, #support, #leadership).
  2. In the message box, type: @Lucien and select the Lucien app, or use Add apps to this channel in the channel settings.
  3. Confirm adding the app.

Once added, Lucien can:

  • Read messages in that channel (subject to passive memory settings – see below).
  • Post drafted summaries or follow‑ups when you ask it to.

Good starting channels: customer‑facing (#sales, #cs, #support), leadership/ops (#leadership, #founders), general channels and product feedback channels.


5. Control passive memory per channel

Lucien can keep a passive memory of what happens in channels where it’s present – capturing decisions, plans, and important context over time.

Channel members can control this with a slash command:

  • /lucien-memory on – enable passive memory in this channel (default).
  • /lucien-memory off – disable passive memory in this channel.

When passive memory is on for a channel:

  • Messages are ingested and summarized so Lucien can answer questions like "What did we decide in #strategy?".
  • This is especially useful in founder, sales, or ops channels and groups.

When passive memory is off for a channel:

  • Lucien only sees messages when explicitly invoked (for example, via /lucien or @mentions (i.e @Lucien AI)).
  • Background summarization for that channel is disabled.

See Slash commands for more detail.


6. Confirm the connection

Back in the Lucien app:

  1. Refresh the Integrations page.
  2. Slack should now show as Connected.
  3. You can now:
    • Use /lucien inside Slack to talk to Lucien.
    • Invite teammates with /lucien-invite.

If connection fails or you see an error, double‑check you installed Lucien in the correct workspace and that the account you used has permission to install apps. If you’re stuck, send a short description and a screenshot to team@lucienai.io.

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