Under the hood
Artifacts gain internal caching of server-declared capabilities, tracking whether they're known-empty or unknown
What
A new internal function caches an artifact's server-declared capabilities, keyed to the specific tool call that fetched them, and reports whether those capabilities are known to be empty or are still unknown.
Why
This appears to be internal plumbing supporting artifact behavior rather than something a reader interacts with directly; the finding doesn't show what feature it enables.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
What user-facing feature or check this capability cache feeds into is not shown by the finding.