> ## Documentation Index
> Fetch the complete documentation index at: https://docs.agno.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Serve a Studio Agent that composes persisted components

> AgentOS exposes code-defined Agents alongside components created by StudioTools.

AgentOS exposes code-defined Agents alongside components created by StudioTools. The Studio Agent can discover registry primitives and compose Agents, Teams, and Workflows. Creates are drafts by default; the demo passes publish=true so the new component is live immediately, and verifies it through the Components API.

```python studio_tools_agent.py theme={null}
"""
Serve a Studio Agent that composes persisted components
=======================================================

AgentOS exposes code-defined Agents alongside components created by StudioTools.
The Studio Agent can discover registry primitives and compose Agents, Teams, and
Workflows. Creates are drafts by default; the demo passes publish=true so the
new component is live immediately, and verifies it through the Components API.

Prerequisites: OPENAI_API_KEY
Run: .venvs/demo/bin/python cookbook/05_agent_os/22_studio/studio_tools_agent.py
Try: run this file with --demo in another terminal
"""

import argparse
import os
from pathlib import Path
from uuid import uuid4

import httpx
from agno.agent import Agent
from agno.db.sqlite import SqliteDb
from agno.models.anthropic import Claude
from agno.models.openai import OpenAIResponses
from agno.os import AgentOS
from agno.registry import Registry
from agno.tools.calculator import CalculatorTools
from agno.tools.studio import StudioTools

# ---------------------------------------------------------------------------
# Create Studio AgentOS
# ---------------------------------------------------------------------------

PORT = int(os.getenv("PORT", "7777"))
BASE_URL = os.getenv("AGENT_OS_BASE_URL", f"http://127.0.0.1:{PORT}")
STUDIO_AGENT_ID = "studio-agent"

DB_DIR = Path(__file__).parent / "tmp"
DB_DIR.mkdir(exist_ok=True)

db = SqliteDb(
    id="studio-tools-db",
    db_file=str(DB_DIR / "studio_tools.db"),
)

registry = Registry(
    name="Studio Registry",
    tools=[CalculatorTools()],
    models=[
        OpenAIResponses(id="gpt-5.5"),
        Claude(id="claude-sonnet-4-6"),
    ],
    dbs=[db],
)

greeter = Agent(
    id="greeter",
    name="Greeter",
    model=OpenAIResponses(id="gpt-5.5"),
    instructions="Welcome the user in one sentence.",
    db=db,
)

reporter = Agent(
    id="reporter",
    name="Reporter",
    model=OpenAIResponses(id="gpt-5.5"),
    instructions="Summarize supplied facts in two sentences.",
    db=db,
)

# Versioning is on by default: this construction carries the full lifecycle
# (drafts, validate, publish, rollback). Passing include_agents makes the two
# code-defined Agents available as Team members and Workflow steps.
studio_tools = StudioTools(
    registry=registry,
    db=db,
    include_agents=[greeter, reporter],
    default_model_id="gpt-5.5",
)

studio_agent = Agent(
    id=STUDIO_AGENT_ID,
    name="Studio Agent",
    model=OpenAIResponses(id="gpt-5.5"),
    tools=[studio_tools],
    instructions=[
        "Use StudioTools to compose persisted components from registry primitives.",
        "Discover exact model and tool names before creating a component.",
        "Creates are drafts unless the user asks you to publish.",
        "Report the component id, version, stage, and next lifecycle action.",
    ],
    db=db,
    markdown=True,
)

agent_os = AgentOS(
    id="studio-tools-os",
    name="Studio Tools AgentOS",
    description="AgentOS with code-defined and Studio-created components.",
    agents=[greeter, reporter, studio_agent],
    registry=registry,
    db=db,
)
app = agent_os.get_app()


# ---------------------------------------------------------------------------
# Run Studio AgentOS
# ---------------------------------------------------------------------------


def run_demo() -> None:
    """Use the live Studio Agent to create and publish one persisted Agent."""
    component_id = f"api-math-guide-{uuid4().hex[:8]}"
    with httpx.Client(base_url=BASE_URL, timeout=180.0) as client:
        registry_response = client.get("/registry", params={"limit": 100})
        registry_response.raise_for_status()
        registry_names = {item["name"] for item in registry_response.json()["data"]}
        if "calculator" not in registry_names or "gpt-5.5" not in registry_names:
            raise RuntimeError("Registry discovery omitted the expected model or tool")

        response = client.post(
            f"/agents/{STUDIO_AGENT_ID}/runs",
            data={
                "message": (
                    "Call list_models and list_tools, then create an agent named "
                    f"'{component_id}' with model 'gpt-5.5', exact tool name "
                    "'calculator', and instructions 'Explain arithmetic clearly.' "
                    "Pass publish=true so it is live immediately. "
                    "Do not edit or run it."
                ),
                "session_id": f"studio-tools-{component_id}",
                # The framework injects this caller's RunContext into every
                # StudioTools call: the created component is OWNED by this
                # user. It publishes on create, so other users can read and
                # run it, but only this user can edit or archive it; while a
                # component is draft-only, other users get component_not_found.
                "user_id": "studio-demo-user",
                "stream": "false",
            },
        )
        response.raise_for_status()
        run = response.json()
        if run["status"] != "COMPLETED":
            raise RuntimeError(f"Expected COMPLETED, got {run['status']}")

        component_response = client.get(f"/components/{component_id}")
        component_response.raise_for_status()
        component = component_response.json()
        if component.get("current_version") != 1:
            raise RuntimeError(f"Expected published version 1, got {component}")

    print(f"Run: {run['run_id']} -> {run['status']}")
    print(f"Component: {component['component_id']} v{component['current_version']}")
    print(f"Owner: {component.get('user_id')}")
    print(run.get("content"))


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument(
        "--demo",
        action="store_true",
        help="Run the HTTP client against a server already listening on port 7777.",
    )
    args = parser.parse_args()

    if args.demo:
        run_demo()
    else:
        agent_os.serve(app=app, host="127.0.0.1", port=PORT)
```

## Run the Example

<Steps>
  <Snippet file="create-venv-step.mdx" />

  <Step title="Install dependencies">
    ```bash theme={null}
    uv pip install -U "agno[os,scheduler]" anthropic openai
    ```
  </Step>

  <Step title="Export your API keys">
    <CodeGroup>
      ```bash Mac/Linux theme={null}
      export ANTHROPIC_API_KEY="your_anthropic_api_key_here"
      export OPENAI_API_KEY="your_openai_api_key_here"
      ```

      ```bash Windows theme={null}
      $Env:ANTHROPIC_API_KEY="your_anthropic_api_key_here"
      $Env:OPENAI_API_KEY="your_openai_api_key_here"
      ```
    </CodeGroup>
  </Step>

  <Step title="Run the example">
    Save the code above as `studio_tools_agent.py`, then run:

    ```bash theme={null}
    python studio_tools_agent.py
    ```
  </Step>
</Steps>

Full source: [cookbook/05\_agent\_os/22\_studio/studio\_tools\_agent.py](https://github.com/agno-agi/agno/blob/v3.0.4/cookbook/05_agent_os/22_studio/studio_tools_agent.py)