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* test(skills): align sandbox cache tests with readonly behavior * ci(release): enforce core quality gate before publish * ci: enforce locked dependency installs in workflows * security: remove curl-pipe-shell installs * chore: align project python baseline to 3.12 * ci(dashboard): add explicit typecheck gate * chore(pre-commit): align ruff hook version with project * ci(codeql): add javascript-typescript analysis * chore(ruff): defer py312 migration lint rules * fix: resolve ruff violations without new ignores * fix: resolve ASYNC230 and ASYNC240 without ignores * fix(auth): replace utcnow with timezone-aware UTC now * fix: avoid blocking file read in file_to_base64
63 lines
2.6 KiB
Python
63 lines
2.6 KiB
Python
from .agent import Agent
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from .tool import FunctionTool
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class HandoffTool[TContext](FunctionTool):
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"""Handoff tool for delegating tasks to another agent."""
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def __init__(
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self,
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agent: Agent[TContext],
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parameters: dict | None = None,
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tool_description: str | None = None,
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**kwargs,
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) -> None:
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# Avoid passing duplicate `description` to the FunctionTool dataclass.
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# Some call sites (e.g. SubAgentOrchestrator) pass `description` via kwargs
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# to override what the main agent sees, while we also compute a default
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# description here.
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# `tool_description` is the public description shown to the main LLM.
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# Keep a separate kwarg to avoid conflicting with FunctionTool's `description`.
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description = tool_description or self.default_description(agent.name)
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super().__init__(
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name=f"transfer_to_{agent.name}",
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parameters=parameters or self.default_parameters(),
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description=description,
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**kwargs,
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)
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# Optional provider override for this subagent. When set, the handoff
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# execution will use this chat provider id instead of the global/default.
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self.provider_id: str | None = None
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# Note: Must assign after super().__init__() to prevent parent class from overriding this attribute
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self.agent = agent
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def default_parameters(self) -> dict:
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return {
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"type": "object",
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"properties": {
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"input": {
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"type": "string",
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"description": "The input to be handed off to another agent. This should be a clear and concise request or task.",
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},
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"image_urls": {
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"type": "array",
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"items": {"type": "string"},
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"description": "Optional: An array of image sources (public HTTP URLs or local file paths) used as references in multimodal tasks such as video generation.",
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},
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"background_task": {
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"type": "boolean",
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"description": (
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"Defaults to false. "
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"Set to true if the task may take noticeable time, involves external tools, or the user does not need to wait. "
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"Use false only for quick, immediate tasks."
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),
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},
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},
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}
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def default_description(self, agent_name: str | None) -> str:
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agent_name = agent_name or "another"
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return f"Delegate tasks to {self.name} agent to handle the request."
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