sandflare-autogen 0.1.5

AutoGen code executor for Sandflare Firecracker microVM sandboxes — run agent-generated code safely

sandflare-autogen

AutoGen CodeExecutor that runs agent-generated code in isolated Sandflare Firecracker microVM sandboxes.

Installation

pip install sandflare-autogen

Usage

Basic — SandflareCodeExecutor

Each execute_code_blocks() call runs in the same sandbox. The sandbox is destroyed when stop() is called or the context manager exits.

from sandflare_autogen import SandflareCodeExecutor
from autogen.coding import CodeBlock

with SandflareCodeExecutor(api_key="pa_live_...") as executor:
    result = executor.execute_code_blocks([
        CodeBlock(code="print('hello from Firecracker!')", language="python")
    ])
    print(result.output)
    # hello from Firecracker!

Set SANDFLARE_API_KEY in your environment to omit the api_key argument.

Persistent State — SandflarePersistentExecutor

Variables, imports, and installed packages are preserved between calls via a persistent Jupyter kernel.

from sandflare_autogen import SandflarePersistentExecutor
from autogen.coding import CodeBlock

with SandflarePersistentExecutor() as executor:
    executor.execute_code_blocks([
        CodeBlock(code="import numpy as np\nx = np.array([1, 2, 3])", language="python")
    ])
    result = executor.execute_code_blocks([
        CodeBlock(code="print(x.mean())", language="python")
    ])
    print(result.output)  # 2.0

ConversableAgent Example

from sandflare_autogen import SandflareCodeExecutor
from autogen import ConversableAgent

with SandflareCodeExecutor(api_key="pa_live_...") as executor:
    agent = ConversableAgent(
        name="coder",
        llm_config={"model": "gpt-4o", "api_key": "sk-..."},
        code_execution_config={"executor": executor},
    )
    user = ConversableAgent(
        name="user",
        human_input_mode="NEVER",
        is_termination_msg=lambda x: x.get("content", "").rstrip().endswith("TERMINATE"),
    )
    user.initiate_chat(
        agent,
        message="Write Python code to find the 50th prime number. Reply TERMINATE when done.",
    )

Constructor Options

Parameter	Type	Default	Description
api_key	str	env var	Sandflare API key (SANDFLARE_API_KEY)
template_id	str	""	Sandbox template ID (empty = base Ubuntu + Python 3)
size	str	"small"	VM size: nano, small, medium, large, xl
timeout	int	60	Per-execution timeout in seconds
persistent	bool	False	Preserve sandbox state across restart() calls
base_url	str	None	Override API base URL (self-hosted deployments)
env	dict	{}	Environment variables injected into the sandbox

Docs

• https://docs.sandflare.io
• https://sandflare.io