Build Your First Agent
Answer four questions about your agent, and AI generates a complete Single Prompt agent. You can refine and test it before deploying.
Step 1: Sign in to the platform
Sign in at app.smallest.ai. If you don’t have an account yet, create one from the same page.
Once you’re in, you’ll see your dashboard.
Step 2: Open Create Agent
From your dashboard, click the green Create Agent button in the top right.
Step 3: Choose Create with AI
In the modal, select the Create with AI option (the third option). Then choose Single Prompt as your agent type.
Step 4: Configure Your Agent (Left Panel)
Before writing your prompts, set the basics in the left panel:
Step 5: Fill the Four Prompts (Right Panel)
Describe your agent in four short prompts. Each needs at least 50 characters. The AI uses these to generate the full agent.
1. Role & Objective — Who is this agent and what’s their goal? Example: “You are Sam, a friendly support agent for TechStore. Your goal is to help customers with orders, returns, and product questions.”
2. Conversational Flow — What steps should the agent follow? Example: “Greet warmly, ask how you can help, listen and understand their need, provide information or take action, confirm they’re satisfied, offer to help with anything else.”
3. Dos, Don’ts & Fallbacks — How should the agent behave in tricky situations? Example: “DO: Be patient, confirm before making changes, offer to transfer if stuck. DON’T: Share other customers’ info or make promises you can’t keep. If you don’t know: say so and offer to find out or transfer.”
4. End Conditions — When should the call end? Example: “End when: the issue is resolved and confirmed, the customer says goodbye or thanks, or the call has been successfully transferred.”
Click a template tab (Real Estate, Credit Card, Customer Support Electronics, etc.) to pre-fill all four prompts, then edit as needed.
Step 6: Create the Agent
Click Create agent in the top right. Atoms will generate your agent (about 30 seconds). When you see the success message, click Go to Agent to open the editor.
Your prompt, voice, model, and Knowledge Base (if you added one) are already configured. Refine the prompt text if you like.
Step 7: Test Your Agent
Click Test Agent in the top-right to start a test call.
You can test your agent in three ways:
- Web Call — talk to your agent through your browser microphone
- Telephony Call — enter a phone number and get a call from your agent
- Chat — text-based conversation with your agent
Talk through a few scenarios:
- Ask a normal question
- Ask something unexpected
- Interrupt mid-response
Listen for clarity and that the agent follows your guidelines.
You Built a Single Prompt Agent
You now have a working Single Prompt agent. Here’s what happens when someone calls:
- Pulse transcribes their speech in 64ms
- Your prompt tells the AI how to respond
- Lightning speaks the response in 175ms
Total: under 800ms per turn.
Understand What You Built
Customize Your Agent
Structure and improve your agent’s instructions
Ground responses in your actual docs and data
Get a real phone number and go live
Voice, model, language, and behavior settings
