Reasoning

What is the Reasoning tool?

The Reasoning tool is a built-in capability in the Agno framework that allows AI agents to structured logical analysis and chain-of-thought reasoning. When added to an agent in Agno Builder, the agent can autonomously decide when to invoke this tool based on the user's request.

This is a free tool — no API key or external account is needed. It works out of the box when you add it to any agent.

How to use Reasoning in Agno Builder

1. 1

   Create an agent

   Drag an Agent node onto the canvas in Agno Builder, or use one of the built-in templates.

2. 2

   Enable Reasoning

   Click the agent, go to the Tools tab, and toggle on "Reasoning" from the core category.

3. 3

   Test in chat

   Open the chat panel and send a message. The agent will automatically use Reasoning when relevant.

4. 4

   Export Python code

   Click File > Export Python to get clean, runnable code with the correct imports for Reasoning.

Python code example

This is the code Agno Builder exports when you use Reasoning:

from agno.agent import Agent
from agno.models.openai import OpenAIChat
from agno.tools.reasoning import ReasoningTools

agent = Agent(
    name="Reasoning Agent",
    model=OpenAIChat(id="gpt-4o"),
    tools=[ReasoningTools()],
    instructions=["Use the reasoning tool to help the user."],
    markdown=True,
)

agent.print_response("Help me with a reasoning task")

Install with: pip install agno