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Code

cookbook/11_models/vertexai/claude/structured_output.py
from typing import List

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

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="claude-sonnet-4@20250514"),
    description="You help people write movie scripts.",
    output_schema=MovieScript,
)

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

​
Usage

1

Set up your virtual environment

uv venv --python 3.12
source .venv/bin/activate
2

Set your environment variables

export CLOUD_ML_REGION=xxx
export GOOGLE_CLOUD_PROJECT=xxx
3

Authenticate your CLI session

gcloud auth application-default login
You dont need to authenticate your CLI every time.
4

Install dependencies

uv pip install -U anthropic agno
5

Run Agent

python cookbook/11_models/vertexai/claude/structured_output.py