[BUG] mis-order of structured_output_span #692
Description
Checks
- I have updated to the lastest minor and patch version of Strands
- I have checked the documentation and this is not expected behavior
- I have searched ./issues and there are no duplicates of my issue
Strands Version
1.5.0
Python Version
3.10.18
Operating System
macOS 15.5
Installation Method
pip
Steps to Reproduce
llm = OpenAIModel(
client_args={
"api_key": os.getenv("API_KEY"),
"base_url": os.getenv("BASE_URL"),
},
model_id=os.getenv("MODEL_ID"),
params={
"max_tokens": int(os.getenv("MAX_TOKENS", 1000)),
"temperature": float(os.getenv("TEMPERATURE", 0.7)),
},
)
agent = Agent(
model=llm,
system_prompt="You are a helpful assistant.",
trace_attributes={
"session.id": f"vrt-{str(uuid.uuid4())}",
},
name="SimpleAgent",
)
class CityInfo(BaseModel):
city: str
country: str
population: Optional[int] = None
climate: str
agent.structured_output(CityInfo, "Provide some information about Taipei")Expected Behavior
Input trace message should be:
[
{
"role": "system",
"content": [
{
"text": "You are a helpful assistant."
}
]
},
{
"role": "user",
"content": [
{
"text": "Provide some information about Taipei"
}
]
}
]
Actual Behavior
[
{
"role": "user",
"content": [
{
"text": "Provide some information about Taipei"
}
]
},
{
"role": "system",
"content": [
{
"text": "You are a helpful assistant."
}
]
}
]
Additional Context
Possible Solution
As mentioned in https://github.com/strands-agents/sdk-python/pull/655/files#r2284600702
Move the system_prompt before messages.