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https://github.com/trustgraph-ai/trustgraph.git
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Agent streaming
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parent
5d95c90120
commit
83e71db3ab
4 changed files with 170 additions and 45 deletions
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@ -12,16 +12,18 @@ class AgentRequestTranslator(MessageTranslator):
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state=data.get("state", None),
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group=data.get("group", None),
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history=data.get("history", []),
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user=data.get("user", "trustgraph")
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user=data.get("user", "trustgraph"),
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streaming=data.get("streaming", False)
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)
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def from_pulsar(self, obj: AgentRequest) -> Dict[str, Any]:
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return {
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"question": obj.question,
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"state": obj.state,
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"group": obj.group,
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"history": obj.history,
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"user": obj.user
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"user": obj.user,
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"streaming": getattr(obj, "streaming", False)
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}
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@ -33,14 +35,36 @@ class AgentResponseTranslator(MessageTranslator):
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def from_pulsar(self, obj: AgentResponse) -> Dict[str, Any]:
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result = {}
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if obj.answer:
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result["answer"] = obj.answer
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if obj.thought:
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result["thought"] = obj.thought
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if obj.observation:
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result["observation"] = obj.observation
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# Check if this is a streaming response (has chunk_type)
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if hasattr(obj, 'chunk_type') and obj.chunk_type:
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result["chunk_type"] = obj.chunk_type
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if obj.content:
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result["content"] = obj.content
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result["end_of_message"] = getattr(obj, "end_of_message", False)
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result["end_of_dialog"] = getattr(obj, "end_of_dialog", False)
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else:
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# Legacy format
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if obj.answer:
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result["answer"] = obj.answer
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if obj.thought:
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result["thought"] = obj.thought
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if obj.observation:
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result["observation"] = obj.observation
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# Always include error if present
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if hasattr(obj, 'error') and obj.error and obj.error.message:
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result["error"] = {"message": obj.error.message, "code": obj.error.code}
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return result
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def from_response_with_completion(self, obj: AgentResponse) -> Tuple[Dict[str, Any], bool]:
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"""Returns (response_dict, is_final)"""
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return self.from_pulsar(obj), (obj.answer is not None)
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# For streaming responses, check end_of_dialog
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if hasattr(obj, 'chunk_type') and obj.chunk_type:
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is_final = getattr(obj, 'end_of_dialog', False)
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else:
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# For legacy responses, check if answer is present
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is_final = (obj.answer is not None)
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return self.from_pulsar(obj), is_final
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@ -1,5 +1,5 @@
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from pulsar.schema import Record, String, Array, Map
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from pulsar.schema import Record, String, Array, Map, Boolean
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from ..core.topic import topic
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from ..core.primitives import Error
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@ -21,8 +21,16 @@ class AgentRequest(Record):
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group = Array(String())
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history = Array(AgentStep())
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user = String() # User context for multi-tenancy
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streaming = Boolean() # NEW: Enable streaming response delivery (default false)
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class AgentResponse(Record):
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# Streaming-first design
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chunk_type = String() # "thought", "action", "observation", "answer", "error"
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content = String() # The actual content (interpretation depends on chunk_type)
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end_of_message = Boolean() # Current chunk type (thought/action/etc.) is complete
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end_of_dialog = Boolean() # Entire agent dialog is complete
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# Legacy fields (deprecated but kept for backward compatibility)
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answer = String()
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error = Error()
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thought = String()
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@ -29,7 +29,7 @@ def output(text, prefix="> ", width=78):
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async def question(
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url, question, flow_id, user, collection,
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plan=None, state=None, group=None, verbose=False
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plan=None, state=None, group=None, verbose=False, streaming=True
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):
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if not url.endswith("/"):
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@ -62,16 +62,17 @@ async def question(
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"request": {
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"question": question,
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"user": user,
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"history": []
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"history": [],
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"streaming": streaming
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}
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}
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# Only add optional fields if they have values
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if state is not None:
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req["request"]["state"] = state
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if group is not None:
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req["request"]["group"] = group
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req = json.dumps(req)
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await ws.send(req)
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@ -89,14 +90,34 @@ async def question(
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print("Ignore message")
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continue
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if "thought" in obj["response"]:
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think(obj["response"]["thought"])
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response = obj["response"]
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if "observation" in obj["response"]:
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observe(obj["response"]["observation"])
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# Handle streaming format (new format with chunk_type)
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if "chunk_type" in response:
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chunk_type = response["chunk_type"]
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content = response.get("content", "")
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if "answer" in obj["response"]:
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print(obj["response"]["answer"])
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if chunk_type == "thought":
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think(content)
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elif chunk_type == "observation":
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observe(content)
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elif chunk_type == "answer":
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print(content)
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elif chunk_type == "error":
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raise RuntimeError(content)
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else:
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# Handle legacy format (backward compatibility)
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if "thought" in response:
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think(response["thought"])
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if "observation" in response:
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observe(response["observation"])
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if "answer" in response:
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print(response["answer"])
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if "error" in response:
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raise RuntimeError(response["error"])
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if obj["complete"]: break
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@ -161,6 +182,12 @@ def main():
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help=f'Output thinking/observations'
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)
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parser.add_argument(
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'--no-streaming',
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action="store_true",
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help=f'Disable streaming (use legacy mode)'
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)
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args = parser.parse_args()
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try:
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@ -176,6 +203,7 @@ def main():
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state = args.state,
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group = args.group,
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verbose = args.verbose,
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streaming = not args.no_streaming,
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)
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)
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@ -191,6 +191,9 @@ class Processor(AgentService):
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try:
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# Check if streaming is enabled
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streaming = getattr(request, 'streaming', False)
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if request.history:
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history = [
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Action(
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@ -215,12 +218,27 @@ class Processor(AgentService):
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logger.debug(f"Think: {x}")
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r = AgentResponse(
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answer=None,
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error=None,
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thought=x,
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observation=None,
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)
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if streaming:
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# Streaming format
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r = AgentResponse(
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chunk_type="thought",
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content=x,
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end_of_message=True,
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end_of_dialog=False,
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# Legacy fields for backward compatibility
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answer=None,
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error=None,
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thought=x,
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observation=None,
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)
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else:
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# Legacy format
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r = AgentResponse(
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answer=None,
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error=None,
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thought=x,
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observation=None,
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)
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await respond(r)
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@ -228,12 +246,27 @@ class Processor(AgentService):
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logger.debug(f"Observe: {x}")
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r = AgentResponse(
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answer=None,
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error=None,
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thought=None,
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observation=x,
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)
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if streaming:
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# Streaming format
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r = AgentResponse(
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chunk_type="observation",
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content=x,
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end_of_message=True,
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end_of_dialog=False,
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# Legacy fields for backward compatibility
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answer=None,
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error=None,
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thought=None,
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observation=x,
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)
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else:
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# Legacy format
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r = AgentResponse(
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answer=None,
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error=None,
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thought=None,
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observation=x,
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)
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await respond(r)
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@ -287,11 +320,25 @@ class Processor(AgentService):
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else:
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f = json.dumps(act.final)
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r = AgentResponse(
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answer=act.final,
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error=None,
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thought=None,
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)
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if streaming:
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# Streaming format - mark as final dialog
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r = AgentResponse(
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chunk_type="answer",
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content=f,
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end_of_message=True,
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end_of_dialog=True,
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# Legacy fields for backward compatibility
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answer=act.final,
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error=None,
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thought=None,
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)
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else:
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# Legacy format
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r = AgentResponse(
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answer=act.final,
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error=None,
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thought=None,
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)
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await respond(r)
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@ -336,14 +383,32 @@ class Processor(AgentService):
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logger.debug("Send error response...")
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r = AgentResponse(
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error=Error(
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type = "agent-error",
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message = str(e),
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),
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response=None,
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error_obj = Error(
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type = "agent-error",
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message = str(e),
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)
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# Check if streaming was enabled (may not be set if error occurred early)
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streaming = getattr(request, 'streaming', False) if 'request' in locals() else False
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if streaming:
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# Streaming format
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r = AgentResponse(
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chunk_type="error",
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content=str(e),
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end_of_message=True,
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end_of_dialog=True,
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# Legacy fields for backward compatibility
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error=error_obj,
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response=None,
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)
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else:
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# Legacy format
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r = AgentResponse(
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error=error_obj,
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response=None,
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)
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await respond(r)
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@staticmethod
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