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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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@@ -7,6 +7,7 @@ from zhenxun.services.ai.core.models import (
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)
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from zhenxun.utils.pydantic_compat import model_copy
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CTX_1_05M = 1_050_000
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CTX_1M = 1_000_000
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CTX_400K = 400_000
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CTX_256K = 256_000
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@@ -283,7 +284,17 @@ _ROUTING_TABLE: list[tuple[list[str], ModelCapabilities, int]] = [
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(["*MiniMax-M3*"], CAP_MINIMAX_MULTIMODAL, CTX_1M),
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(["mimo-v2.5-pro*", "mimo-v2-pro*", "mimo-v2-flash*"], CAP_MIMO_TEXT, CTX_1M),
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(["mimo-v2.5", "mimo-v2-omni*"], CAP_MIMO_MULTIMODAL, CTX_1M),
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(["gpt-5.5*", "gpt-5.4*"], CAP_OPENAI_MULTIMODAL, CTX_1M),
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(
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["gpt-5.3-chat*", "gpt-5.3-instant*", "*codex-spark*"],
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CAP_OPENAI_MULTIMODAL,
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CTX_128K,
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),
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(
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["gpt-[5-9]*mini*", "gpt-[5-9]*nano*", "gpt-[5-9]*-instant*", "*codex*"],
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CAP_OPENAI_MULTIMODAL,
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CTX_400K,
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),
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(["gpt-[5-9]*"], CAP_OPENAI_MULTIMODAL, CTX_1_05M),
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(["gemini-3*pro*"], CAP_GEMINI_3_PRO, CTX_1M),
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(["gemini-3*"], CAP_GEMINI_3_FLASH, CTX_1M),
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(
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@@ -291,11 +302,6 @@ _ROUTING_TABLE: list[tuple[list[str], ModelCapabilities, int]] = [
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CAP_GEMINI_2_5,
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CTX_1M,
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),
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(
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["gpt-5*", "gpt-5-mini*", "gpt-5-nano*", "*codex*"],
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CAP_OPENAI_MULTIMODAL,
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CTX_400K,
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),
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(
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["kimi-k2.7*", "kimi-k2.6*", "kimi-k2.5*"],
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DEFAULT_PERMISSIVE_CAPABILITIES,
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