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- """
- 上下文工具 - 获取当前执行上下文
- 提供 get_current_context 工具,让 Agent 可以主动获取:
- - 当前计划(GoalTree)
- - 焦点提醒
- - 协作者状态
- 框架也会在特定轮次自动调用此工具进行周期性上下文刷新。
- """
- from agent.tools import tool, ToolResult, ToolContext
- @tool(
- description="获取当前执行上下文,包括计划状态、焦点提醒、协作者信息等。当你感到困惑或需要回顾当前任务状态时调用。",
- hidden_params=["context"]
- )
- async def get_current_context(
- context: ToolContext,
- ) -> ToolResult:
- """
- 获取当前执行上下文
- Returns:
- ToolResult: 包含 GoalTree、焦点提醒、协作者状态等信息
- """
- runner = context.get("runner")
- goal_tree = context.get("goal_tree")
- trace_id = context.get("trace_id")
- if not runner:
- return ToolResult(
- title="❌ 无法获取上下文",
- output="Runner 未初始化",
- error="Runner not available"
- )
- # 获取 trace 对象
- trace = None
- if runner.trace_store and trace_id:
- trace = await runner.trace_store.get_trace(trace_id)
- # 构建上下文内容(复用 runner 的 _build_context_injection 方法)
- if hasattr(runner, '_build_context_injection'):
- context_content = runner._build_context_injection(trace, goal_tree)
- else:
- # Fallback:只返回 GoalTree
- if goal_tree and goal_tree.goals:
- context_content = f"## Current Plan\n\n{goal_tree.to_prompt()}"
- else:
- context_content = "暂无计划信息"
- if not context_content:
- context_content = "当前无需要刷新的上下文信息"
- return ToolResult(
- title="📋 当前执行上下文",
- output=context_content,
- long_term_memory="已刷新执行上下文",
- )
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