New artifact sharing flow, plus proxy refusal and cache keepalive names

What

An artifact is a piece of content Claude Code produces, such as a document. New code covers sharing artifacts with other people.

• artifact_share is a new flow for reading and writing shared artifacts and working out which people they are shared with.
• It has many possible outcomes, including read_ok_foreign, write_relay_unapproved, consent_gone, not_person and people_unresolved.
• ccr_worker_proxy_refusal and api_cache_keepalive were added alongside it, pointing to handling for refused proxy requests from remote workers and to keeping a cache alive.
• The memory rating writeback step no longer returns the values it cited.

Why

This points to a new way to share artifacts with other people, with checks on consent, approval and whether a real person is involved. Nothing here shows that the feature is available to you yet.