Unverified50% confidenceFactExact time
Prefix caching is extremely sensitive to input stability; as long as any single token in the prefix is modified or inserted, the cache is invalidated and all subsequent content must be recomputed.
1
Sources
50%
Confidence
Long-term
Relevance
9/28/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedIn the cache reuse mechanism, once the request prefix is modified, the cache for all content after it becomes invalid; modifying tools or other parts of the request will still affect reuse.78% similarUnverifiedv2.1.269 fixes an issue where the prompt cache was partially invalidated when a response was truncated upon hitting the output token limit and then automatically continued.67% similarUnverifiedSystems that allow editing of their own code must keep a portion of the self-editing mechanism unmodified to maintain stability; otherwise the system is highly prone to collapse.66% similarUnverifiedThis update fixes a series of issues that caused prompt cache invalidation, including tool list and system prompt prefix changes during sub-agent resumption breaking cache reuse.65% similarVerifiedAccording to the Semantic Versioning (SemVer) specification, a Patch-level update signifies backward-compatible bug fixes.64% similar
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