Can an agent use a tool with an object in input from its previous task?

General
1

my question is, can an agent call a tool with an object rather than a string? If so, what am I missing?

def research_task(self) -> Task:
	return Task(
		config=self.tasks_config['research_task'],
		output_pydantic=SlackAttachmentsResponse,
	)

  
   def send_slack_message(self) -> Task:
        return Task(
             config=self.tasks_config['send_slack_message'],
        )


class SlackToolInput(BaseModel):
    """Input schema for SlackTool."""
    attachments_response: SlackAttachmentsResponse = Field(..., description="list of attachement")

class SlackTool(BaseTool):
name: str = "Send message"
description: str = "Send message."
args_schema: Type[BaseModel] = SlackToolInput

#send message

Agent: Test

Using tool: Send message to Slack

Tool Input:

“{"attachments_response": {"description": "Liste des issues \\u00cevoyer.", "type": "SlackAttachmentsResponse", "attachments": [{"fallback": "Redmine", "pretext": "None", "title": "Feature", "title_link": "https://test.fr/issues/4326\”, "text": "Implement new notification feature", "fields": "None", "footer": "None", "footer_icon": "None"}, {"fallback": "Redmine", "pretext": "None", "title": "Bug", "title_link": "https://test.fr/issues/4325\“, "text": "Fix issue with the login page", "fields": "None", "footer": "None", "footer_icon": "None"}]}}”

Tool Output:

I encountered an error while trying to use the tool. This was the error: Arguments validation failed: 2 validation errors for SlackToolInput

I try to use this :

return Agent(
	config=self.agents_config['redmine_searcher'],
	verbose=True,
	tools=[RedmineTool(result_as_answer=True), SlackTool()],
)

To have directly my object as result of first Task bu I have this error :

pydantic_core._pydantic_core.ValidationError: 1 validation error for TaskOutput
raw
Input should be a valid string [type=string_type, input_value=SlackAttachmentsResponse(…one, footer_icon=None)]), input_type=SlackAttachmentsResponse]

2

I think you’re paying attention to the wrong part of the code. Setting tools as you did should work.

The issue is caused by the input itself being passed to the tool. It should be a string, but it’s not. What is being passed as an input?