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♻️ refactor(agent): 重构 Agent 状态管理与执行器流程,优化 Token 预估与自愈反思机制 (#2150)
- 统一使用 `run_context.run.messages` 作为消息历史的单一数据源,清理 `AgentState` 冗余字段 - 将工具消息装配逻辑 `assemble_tool_message` 提取并重构至 `ToolExecutor` - 引入 `token_drift` 动态校准偏移量,并精确计算工具与系统提示词的 Token 开销 - 重构 `ReflexionCapability` 自愈反思引擎,基于异常多态与模板字典动态生成反馈提示词 - 支持通过 `resolve_model_capabilities` 解析并合并用户自定义的模型能力覆盖 - 在执行器循环中支持 `should_reset_cycle`,以优雅处理外部干预(如用户追加指示) - 扩展 `capabilities` 中对 `gpt-[5-9]*` 等新型号模型的能力定义与上下文限制 Co-authored-by: webjoin111 <455457521@qq.com>
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@@ -4,6 +4,7 @@ from typing import Any, Generic, TypeVar
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from pydantic import BaseModel, Field
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from zhenxun.services.ai.config import get_llm_config
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from zhenxun.services.ai.context.memory.models import MemoryConfig
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from zhenxun.services.ai.core.engine.token_counter import token_counter
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from zhenxun.services.ai.core.messages import (
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@@ -15,7 +16,10 @@ from zhenxun.services.ai.core.messages import (
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TextPart,
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VideoPart,
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)
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from zhenxun.services.ai.core.models import ModelCapabilities
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from zhenxun.services.ai.llm.api import chat, generate_structured
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from zhenxun.services.ai.llm.manager import get_default_model
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from zhenxun.services.ai.llm.system.capabilities import get_model_capabilities
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from zhenxun.services.ai.utils.logger import log_memory as logger
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from zhenxun.utils.pydantic_compat import model_copy
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@@ -396,8 +400,6 @@ class LLMSummarizerReducer(AbstractSummarizerReducer):
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prompt_text += f"[{speaker}]: {c_str}\n"
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prompt_text += "</需要合并的旧对话记录>\n"
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from zhenxun.services.ai.llm.api import chat
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try:
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model_to_use = self.summarization_model or get_default_model("chat")
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response = await chat(
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@@ -474,8 +476,6 @@ class StructuredSummaryReducer(AbstractSummarizerReducer, Generic[_T_Summary]):
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prev_summary=prev_summary, dialogue=dialogue_text
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)
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from zhenxun.services.ai.llm.api import generate_structured
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try:
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model_to_use = self.summarization_model or get_default_model("chat")
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summary_obj = await generate_structured(
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@@ -513,15 +513,19 @@ class CondenserPipeline:
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@classmethod
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def create_from_configs(
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cls, memory_config: MemoryConfig | None, model_name: str
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cls,
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memory_config: MemoryConfig | None,
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capabilities: ModelCapabilities | None,
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model_name: str,
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) -> "CondenserPipeline":
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"""基于全局和局部配置组装压缩管线工厂方法"""
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from zhenxun.services.ai.config import get_llm_config
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from zhenxun.services.ai.llm.system.capabilities import get_model_capabilities
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config = get_llm_config().context_settings
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pipeline_reducers = []
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caps = get_model_capabilities(model_name)
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caps = (
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capabilities
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if capabilities is not None
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else get_model_capabilities(model_name)
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)
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vw = config.vision_window_size
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if memory_config and memory_config.compression.vision_window is not None:
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