Failed to call _from_config() when HttpTool in StaticStreamWorkbench #7172
Description
What happened?
Describe the bug
I created a tool using HttpTool and used it in StaticStreamWorkbench. It worked fine.
However, when I created a new instance of StaticStreamWorkbench by calling _from_config(), I got an error:
pydantic_core._pydantic_core.ValidationError: 1 validation error for HttpToolConfig
headers
Field required [type=missing, input_value={'name': 'base64_decode',... 'text', 'timeout': 5.0}, input_type=dict]
For further information visit https://errors.pydantic.dev/2.12/v/missing
Maybe HttpTool has some problems to cause the failure of _from_config().
env version:
- autogen-core: 0.7.5
- autogen-ext: 0.7.5
- Python 3.13.9
To Reproduce
Here is the code:
from autogen_core.tools import StaticStreamWorkbench
from autogen_ext.tools.http import HttpTool
async def build():
tool2 = HttpTool(
name="base64_decode",
description="base64 decode a value",
scheme="https",
host="httpbin.org",
port=443,
path="/base64/{value}",
method="GET",
json_schema={
"type": "object",
"properties": {
"value": {"type": "string", "description": "The base64 value to decode"},
},
"required": ["value"],
}
)
workbench = StaticStreamWorkbench(tools=[tool2])
return workbench
async def run():
workbench = await build()
tool_list = await workbench.list_tools()
print("Available tools in the workbench:", tool_list)
result = await workbench.call_tool("base64_decode", {"value": "YWJjZGU="})
print("Sentiment Analysis Result:", result)
async def save_load_example():
workbench = await build()
state = await workbench.save_state()
config = workbench._to_config()
# Maybe HttpTool has some problems to cause the failure of _from_config
new_workbench = StaticStreamWorkbench._from_config(config)
await new_workbench.load_state(state)
if __name__ == "__main__":
import asyncio
asyncio.run(run())
asyncio.run(save_load_example())Which packages was the bug in?
Python Extensions (autogen-ext)
AutoGen library version.
Python 0.7.5
Other library version.
No response
Model used
No response
Model provider
None
Other model provider
No response
Python version
3.13
.NET version
None
Operating system
Ubuntu