Auto-Replies

Set up AI auto-replies with Nebula for your Slack support channel. Match questions against your knowledge base and respond accurately in seconds.

What you'll build

Nebula monitors your Slack support channel for new questions, checks them against your knowledge base, and posts accurate replies in the thread within seconds, so common questions get answered instantly without pulling your team away from deep work.

What to say

You

When someone posts a question in #support on Slack, check our knowledge base for an answer. If you find one, reply in the thread.

Read Slack MessagesSlack Agent

Monitoring #support for new messages...

Nebula

Set up. I'll watch #support and automatically reply to questions using your knowledge base. If I can't find a confident match, I'll flag the message for your team instead of guessing.

Adjust the channel, knowledge source, and reply style to match your setup. You can also tell Nebula to tag a team member when it isn't confident in a match.

What happens

Nebula watches your support channel for new questions

Nebula monitors #support for incoming messages. When a new message arrives, it reads the full text and determines whether it's a question that could be answered from your knowledge base.

The question is matched against your knowledge base

Nebula searches your knowledge base (docs, FAQs, past answers) for content that matches the question. It looks for semantic matches, not just keyword hits, so questions phrased differently from your docs still get caught.

A reply is drafted and confidence is assessed

Nebula drafts a reply based on the best-matching knowledge base content. If the confidence is high, it posts the reply directly. If the match is uncertain, it flags the question for your team instead of risking an inaccurate answer. Here's an example of what a reply looks like:

#support — New question from @jamie

"How do I connect my GitHub account?"

Nebula's reply: "You can connect your GitHub account from the Integrations page. Click Add Integration, select GitHub, and follow the OAuth flow. Once connected, your repos will be available within a few seconds. Here's the full guide: docs.example.com/integrations/github"

The reply is posted in the thread

Nebula posts its answer as a threaded reply so the main channel stays clean. If you've configured review mode, the draft goes to a review queue instead, and you approve it before it's posted.

Make it automatic

You

Set this up as an event trigger: reply to new questions in #support automatically.

Create Trigger

Creating event trigger: on new message in #support. Task: check knowledge base for matching answer, reply in thread if found, flag for team if uncertain.

Run ActionSlack Agent

Subscribed to new messages in #support.

Nebula

Your event trigger is live. Whenever someone posts a question in #support, I'll check your knowledge base and reply in the thread with the answer. Questions I'm not confident about will be flagged for your team. You can pause or edit this from the Triggers page.

This sets up an event trigger that fires on every new message in #support. Nebula handles the common questions instantly and escalates the rest.

Connect your integrations

This recipe uses Slack. Add the Nebula Slack bot from the Integrations page, then invite the bot to the #support channel (and any other channels you want it to monitor). Make sure your knowledge base content is accessible to Nebula so it can search against it.