What Is an AI Agent? › A Glimpse Under the Hood

## Simplified agent loop (conceptual preview - not runnable code)
## In later chapters, we'll implement this using Claude Agent SDK
def agent_loop(user_request):
    # 1. Perceive: Understand the request
    intent = understand_intent(user_request)

    # 2. Reason: Decide what to do
    plan = create_plan(intent)

    # 3. Act: Execute the plan
    for step in plan:
        if step.needs_tool:
            result = call_tool(step.tool_name, step.parameters)
        else:
            result = generate_response(step)

    # 4. Adapt: Check if we succeeded
    if not successful(result):
        plan = revise_plan(plan, result)

    return final_response