Conversación con un agente ReAct

Diseño de sistemas agénticos con LangChain

Dilini K. Sumanapala, PhD

Founder & AI Engineer, Genverv, Ltd.

Conversación

The area of a rectangle with sides 5 and 7 is 35 square units.

Validando respuestas
Usuario: "What is the area of a rectangle with sides 5 and 7?"
Agente: "The area of a rectangle with sides 5 and 7 is 35 square units."

Conversación

tools = [rectangle_area]
query = "What is the area of a rectangle with sides 14 and 4?"


# Create the ReAct agent
app = create_react_agent(model, tools)


# Invoke the agent with a query and store the messages
response = app.invoke({"messages": [("human", query)]})


# Define and print the input and output messages
print({
    "user_input": query,
    "agent_output": response["messages"][-1].content})

Salida de la conversación

{'user_input': 'What is the area of a rectangle with sides 14 and 4?',
 'agent_output': 'The area of a rectangle with sides 14 and 4 is 56 
 square units.'}

Preguntas de seguimiento

Seguimiento:
- Usuario: "What about one with sides 12 and 14?"
Historial de conversación:
- Usuario: "What is the area of a rectangle with sides 5 and 7?"
- Agente: "The area of a rectangle with sides 5 and 7 is 35 square units."
- Usuario: "What about one with sides 12 and 14?"
- Agente: "The area of a rectangle with sides 12 and 14 is 168 square units."
Salida
- Usuario: "What about one with sides 12 and 14?"
- Agente: "The area of a rectangle with sides 12 and 14 is 168 square units."

Preguntas de seguimiento

{'user_input': 'What about one with sides 12 and 14?',

'agent_output': ['HumanMessage: What is the area of a rectangle with sides 
5 and 7?', 'AIMessage: The area of a rectangle with sides 5 and 7 is 35 
square units.',
'HumanMessage: What about one with sides 12 and 14?', 
'AIMessage: The area of a rectangle with sides 12 and 14 is 168 square 
units.',

'HumanMessage: What about one with sides 12 and 14?',
'AIMessage: The area of a rectangle with sides 12 and 14 is 168 square 
units.']}

Historial de conversación

from langchain_core.messages import 
HumanMessage, AIMessage

Historial de conversación

from langchain_core.messages import 
HumanMessage, AIMessage


message_history = messages["messages"]

Inicio de la configuración de conversación lineal con "historial de mensajes".

Historial de conversación

from langchain_core.messages import 
HumanMessage, AIMessage

message_history = messages["messages"]

new_query = "What about one with sides 
4 and 3?"

Configuración de la conversación actualizada con nueva consulta.

Historial de conversación

from langchain_core.messages import 
HumanMessage, AIMessage

message_history = messages["messages"]

new_query = "What about one with sides 
4 and 3?"


# Invoke the app with the full message history
messages = app.invoke({"messages": 
           message_history + [("human", 
           new_query)]})

Configuración de la conversación actualizada con invocación de la app.

Historial de conversación

# Extract the human and AI messages
filtered_messages = [msg for msg in 
                    messages["messages"] if 
                    isinstance(msg, 
                    (HumanMessage, 
                    AIMessage)) 
                    and msg.content.strip()]

Configuración de la conversación actualizada con filtrado de mensajes.

Historial de conversación

# Extract the human and AI messages
filtered_messages = [msg for msg in 
                    messages["messages"] if 
                    isinstance(msg, 
                    (HumanMessage, 
                    AIMessage)) 
                    and msg.content.strip()]


# Format and print the final result
print({
    "user_input": new_query, "agent_output": 
    [f"{msg.__class__.__name__}: 
    {msg.content}" for msg in 
    filtered_messages]})

Configuración de la conversación actualizada con impresión de mensajes.

Salida del historial de conversación

{'user_input': 'What about one with sides 4 and 3?',

'agent_output': ['HumanMessage: What is the area of a rectangle with sides 
14 and 4?', 'AIMessage: The area of a rectangle with sides 14 and 4 is 56 
square units.',
'HumanMessage: What about one with sides 4 and 3?', 
'AIMessage: The area of a rectangle with sides 4 and 3 is 12 square 
units.',

'HumanMessage: What about one with sides 4 and 3?',
'AIMessage: The area of a rectangle with sides 4 and 3 is 12 square 
units.']}

¡Vamos a practicar!

Diseño de sistemas agénticos con LangChain

Conversación con un agente ReAct

Conversación

Validando respuestas

Conversación

Salida de la conversación

Preguntas de seguimiento

Seguimiento:

Historial de conversación:

Salida

Preguntas de seguimiento

Historial de conversación

Historial de conversación

Historial de conversación

Historial de conversación

Historial de conversación

Historial de conversación

Salida del historial de conversación

¡Vamos a practicar!