HTTP Caching and Revalidation Correctness: A Proposed Axis for What AI App Builders Declare About Reusing Their Own Responses (September 2026)
A candidate BuilderProof axis scoring what a generated application declares about who may store its responses, for how long, keyed on what, and how staleness is detected. The HTTP caching specification's shared-cache protection is keyed on the Authorization header, which is not how most generated apps authenticate. Seven weighted signals, four postures, a nine-step protocol, no scores.
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