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CLAUDE_CODE_ARTIFACT_REPL env var exists and is passed to subprocesses but nothing reads it
What
A new environment variable, CLAUDE_CODE_ARTIFACT_REPL, has been added to Claude Code's list of recognized environment variables and is now forwarded to any subprocesses Claude Code launches. However, no code anywhere in the bundle actually reads this variable's value.
Why
As it stands, setting this variable has no observable effect, since nothing checks it yet; it appears to be groundwork for a feature that hasn't been wired up.
Names in the bundleCLAUDE_CODE_ARTIFACT_REPL
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this build
New in this build: CLAUDE_CODE_ARTIFACT_REPL