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Artifact reads for type-locked artifacts can now return data without first writing it to disk
What
When an artifact (a file-like object Claude Code creates and manages, such as a document or piece of generated content) is "type-locked" and you own it but haven't yet saved your own files to it, reading it via artifact_bash can now compute a fresh summary directly instead of always writing a raw HTML copy to disk first. This path is controlled by feature flags (typeCatalogOn, typeCreateOn) and a new environment variable, CLAUDE_CODE_ARTIFACT_FRESH_READ.
Why
Skipping the unnecessary disk write for a fresh, unmodified artifact should make reads faster and avoid creating file copies that aren't needed yet.
Names in the bundleCLAUDE_CODE_ARTIFACT_FRESH_READ
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The name it cites is new in this build
New in this build: CLAUDE_CODE_ARTIFACT_FRESH_READ