Unverified50% confidenceCautionExact time
Placing dynamic content (such as timestamps) at the top of a prompt means the prefix will never match, making cache hits impossible.
1
Sources
50%
Confidence
Long-term
Relevance
10/12/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedOnce any minor change appears in the first half of a prompt — such as a dynamic timestamp, a user's name, or a real-time retrieval result — the entire cache prefix is invalidated.71% similarUnverified缓存命中的前提是提示词内容保持稳定，若系统提示词中包含动态插入的时间戳、会话ID或随机内容则会造成缓存失效66% similarUnverifiedImproper internal links, such as anchor text that does not match the target page's topic or excessive use of exact-match anchor text, may actually send negative signals to search engines.64% similarUnverifiedDynamically adding or removing tool definitions in each request will cause the prefix hash to change, invalidating the cache.62% similarUnverifiedPrefix caching is highly sensitive to the order of context concatenation; if dynamic content is inserted at the head of the message list with every request, the cache hit rate will plummet to zero.61% similar
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