Learn to build
AI agents.
From scratch. For real.

# Your first agent - built from scratch, no frameworks
import ollama

def run_agent(goal, tools, registry, max_steps=10):
    messages = [{"role": "system", "content": f"Goal: {goal}"}]

    for _ in range(max_steps):
        response = ollama.chat(
            model="llama3",
            messages=messages,
            tools=tools,
        )
        message = response.message
        messages.append(message)

        # No tool calls means the model is done.
        if not message.tool_calls:
            return message.content

        # Otherwise run each tool and feed the result back.
        for call in message.tool_calls:
            result = registry[call.function.name](**call.function.arguments)
            messages.append({
                "role": "tool",
                "content": str(result),
                "tool_call_id": call.id,
            })