CLAUDE_CODE_ARTIFACT_TYPES

A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.236, including the newest one read.

Releases whose published page names CLAUDE_CODE_ARTIFACT_TYPES.

1. v2.1.267 9 Sep 2026
   Artifact hot-update flag renamed / decoupled from artifact-types flag

   Artifact hot-reload now has its own dedicated env var and gate, separate from the artifact-types feature

   found in this entry's text

2. v2.1.242 24 Aug 2026
   Starting an Artifact from a type in a cloud session, behind a second gate that is off

   Creating an artifact from a type inside a cloud session sits behind a second switch, off.

   named in this entry, found in this entry's text

3. v2.1.236 19 Aug 2026
   Artifact types (templates and starters), built end to end and off by default

   You could start a private artifact from a published template, but two server switches keep it shut here.

   named in this entry, found in this entry's text

The earliest release whose published evidence quoted CLAUDE_CODE_ARTIFACT_TYPES was v2.1.236, 19 Aug 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the environment variable does. All environment variables.