AI agents are everywhere—but most people still don’t know what they actually do or how to build one.

So I built a simple, no-code AI agent that reads my Slack threads and sends me a daily summary email. It took under 30 minutes to set up and now saves me hours every week.

If you’ve been curious about AI agents but haven’t found a clear starting point, this is it. Here’s how it works. 👇

The Complete AI Agent Setup Workflow

To set up your AI agent, we’ll use Zapier, a no-code automation platform that lets you connect your favorite apps and create powerful AI workflows.

🤖 Step 1: Access the AI Agent Feature

  • On the Zapier dashboard, look at the left-hand menu.

  • Click on “Agents” (note: this feature is currently in beta).

  • Select “Create Custom Agent”.

  • Give your agent a meaningful name—ideally something you can use long-term.

    Click Agents to get started

💻 Step 2: Explore the Agent Interface

  • Once the agent is created, you'll see its interface.

  • This displays all the behaviors (including those from previous agents, if any).

  • You can always return to check the agent’s activity and progress.

Zapier: create your own custom agent

Step 3: Create a New Behavior

  • Click on “Run Behavior” and then “Create Behavior”.

  • This is where you define what the agent should do and which tools it will use to make the magic happen.

🎮 Step 4: Add a Trigger

  • Click “Add Trigger” and choose an app to start the workflow.

  • For this example, select Slack.

  • Set the trigger to “Reaction Added”—this means when you react to a Slack message, the agent will begin its job.

🛠 Step 5: Define the Behavior

  • Next, provide clear instructions to the agent.

  • For example:
    “When I react to the Slack thread, please summarize all the important info I need to know and any action items from the thread.”

    Giving Instructions to the custom agent

🔥 Step 6: Insert Tools to Enable Action

Now we tell the agent how to complete the task:

  1. Click “Insert Tool” and search for Slack.

  2. Choose “Retrieve Thread Messages” – this lets the agent pull the full thread details.

  3. Click “Insert Tool” again and select Gmail.

  4. Choose “Send Email” as the action.

  • For the thread timestamp, you can either manually set it or let the agent generate the value automatically.

  • Enter the desired recipient email address.

Insert the required tools and information

🧪 Step 7: Save and Test

  • Click “Save” to lock in your workflow.

  • Then hit “Test Behavior” to see it in action.

  • If everything is set up correctly, reacting to a Slack thread will trigger your AI agent to send a summary email with key points and action items.

🎉 That’s it!

You’ve just built a fully functional AI agent without writing a single line of code. It’s a simple example, but the principles remain the same:

  • → Connect your apps

  • → Define behavior

  • → Let the agent do the work.

🏆Grab the Challenge & Get Rewarded!

Ready to put your creativity to work? 💪

Create your own unique AI agent using the same steps, whether it’s for automating reports, managing your calendar, organizing your notes, or anything else that makes your life easier.

🎁 Bonus: Get 1 Month Free on Prompt Genie!

Write to us with:

  • What kind of AI agent you built

  • How it changed your workflow or life

The best submissions will receive one month of Prompt Genie Pro – absolutely free. 🎉

Let your AI agent do the work, and let your story inspire others! 🌟

👀 ICYMI

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Team DigitalSamaritan

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