Unverified50% confidenceSolutionExact time
安全护栏的实现依赖于LangChain的中间件（Middleware）机制，类似于钩子函数
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/24/2026
First Seen
Valid until: 10/22/2026
Sources
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