Unable to use an agent that is defined with a resoponse_model in the playground

Im trying to use an agent that is defined with a resoponse_model in the playground, but for some reason it seems to be idle and not running the agent: for example with this code running the agent locally everything works well:

import asyncio
from typing import Optional
from pydantic import BaseModel, Field
from agno.agent import Agent
from agno.models.openai import OpenAIChat
from agno.playground import Playground

class Result(BaseModel):
   domain: str = Field(..., description="The root domain that was searched")
   privacy_policy_url: str = Field(..., description="Direct URL to the privacy policy page")

agent = Agent(
   model=OpenAIChat(id="gpt-4o"),
   response_model=Result,
   use_json_mode=True,
   description="Privacy policy finder agent"
)

if __name__ == "__main__":

   asyncio.run(agent.aprint_response("Find privacy policy for netflix.com", markdown=True))

everything works well:

┏━ Message ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃                                                                                                                                                                                ┃
┃ Find privacy policy for netflix.com                                                                                                                                            ┃
┃                                                                                                                                                                                ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
┏━ Response (0.7s) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃                                                                                                                                                                                ┃
┃ {                                                                                                                                                                              ┃
┃   "domain": "netflix.com",                                                                                                                                                     ┃
┃   "privacy_policy_url": "https://help.netflix.com/legal/privacy"                                                                                                               ┃
┃ }                                                                                                                                                                              ┃
┃                                                                                                                                                                                ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛

but when i run it using playground as such:



import asyncio
from typing import Optional
from pydantic import BaseModel, Field
from agno.agent import Agent
from agno.models.openai import OpenAIChat
from agno.playground import Playground

class Result(BaseModel):
    domain: str = Field(..., description="The root domain that was searched")
    privacy_policy_url: str = Field(..., description="Direct URL to the privacy policy page")

agent = Agent(
    model=OpenAIChat(id="gpt-4o"),
    response_model=Result,
    description="Privacy policy finder agent",
    markdown=True,
)

    
playground = Playground(agents=[agent])
app = playground.get_app()

if __name__ == "__main__":
    playground.serve("sample:app", reload=True)
    

nothing happens in the playground when i sen the message, it seems stuck:

I tried using use_json_mode , stream but with no luck.

when i remove the response_model=Result it works well in playground but i want it to be structured output (it will be part of a team).

can you please help me on how to resolve this?
Thanks!

Hi @benda, thanks for reaching out and supporting Agno. I’ve shared this with the team, we’re working through all requests one by one and will get back to you soon.If it’s urgent, please let us know. We appreciate your patience!

Same Agent Stops Calling Tool After Adding response_model

Our Playground has been deprecated. Our new AgentOS offering will substitute all use cases. See AgentOS for more details!

Please give agentOS a try and let me know if you still are running into the same issue and I will jump straight on it! :folded_hands: