Claude Structured Output

Generate a typed MovieScript from Claude on Bedrock with a Pydantic output schema.

structured_output.py

"""
Aws Structured Output
=====================

Cookbook example for `aws/claude/structured_output.py`.
"""

from typing import List

from agno.agent import Agent, RunOutput  # noqa
from agno.models.aws import Claude
from pydantic import BaseModel, Field
from rich.pretty import pprint  # noqa

# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------


class MovieScript(BaseModel):
    setting: str = Field(
        ..., description="Provide a nice setting for a blockbuster movie."
    )
    ending: str = Field(
        ...,
        description="Ending of the movie. If not available, provide a happy ending.",
    )
    genre: str = Field(
        ...,
        description="Genre of the movie. If not available, select action, thriller or romantic comedy.",
    )
    name: str = Field(..., description="Give a name to this movie")
    characters: List[str] = Field(..., description="Name of characters for this movie.")
    storyline: str = Field(
        ..., description="3 sentence storyline for the movie. Make it exciting!"
    )


movie_agent = Agent(
    model=Claude(id="global.anthropic.claude-sonnet-4-5-20250929-v1:0"),
    description="You help people write movie scripts.",
    output_schema=MovieScript,
)

# Get the response in a variable
# movie_agent: RunOutput = movie_agent.run("New York")
# pprint(movie_agent.content)

movie_agent.print_response("New York. Be brief.")

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------

if __name__ == "__main__":
    pass

Run the Example

1. Set up your virtual environment

   Mac

   uv venv --python 3.12
   source .venv/bin/activate
   

   uv venv --python 3.12
   .venv\Scripts\activate
   
2. Install dependencies

   uv pip install -U agno aioboto3 boto3
   
3. Export environment variables

   Mac/Linux

   export AWS_ACCESS_KEY_ID="your_aws_access_key_id_here"
   export AWS_SECRET_ACCESS_KEY="your_aws_secret_access_key_here"
   

   $Env:AWS_ACCESS_KEY_ID="your_aws_access_key_id_here"
   $Env:AWS_SECRET_ACCESS_KEY="your_aws_secret_access_key_here"
   
4. Run the example

   Save the code above as structured_output.py, then run:

   python structured_output.py
   

Full source: cookbook/90_models/aws/claude/structured_output.py