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      <description>AI Agent 工程化实践复盘：架构设计、容错与可靠性、上下文工程与成本治理。</description>
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    <title>Agent 健壮性设计：工具调用与模型调用失败的容错与兜底</title>
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    <description>错误分类（确定性 vs 瞬时）→ 确定性错误回传模型自我修复、瞬时错误指数退避+随机抖动重试 → 多次失败熔断 → 按能力等级优雅降级（备用工具 / 业务降级 / 转人工）。模型侧另需识别「API 返回成功但业务结果错误」的潜在失败，并在切换备用模型后持续评估。</description>
    <pubDate>Tue, 15 Sep 2026 00:00:00 GMT</pubDate>
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