Design a Cache Index API with Explicit Freshness and Invalidation
A useful cache API needs more than get and set. Define identity, freshness, generations, and failure behavior so clients know when a response is safe to reuse.
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Cache API
Explore the cache api questions that connect these guides.
An application cache API needs to express more than get and set. Keys, scope, versions, freshness, failure states, and invalidation all shape the meaning of a result. This collection turns those concerns into questions you can apply to a concrete interface.
Trace the caller’s experience when an entry is missing, expired, or made unsuitable by a source change. Consider what a failed or repeated write means and how the next reader finds a complete value. These are application-contract questions; the browser’s Cache API and HTTP response caching have their own distinct semantics.
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Start with the Cache Index API guide to place the terminology in context. Then explore AI Model Cache Index Service for a connected design question.
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