CLAUDE_CODE_COWORK_FRAME_ARTIFACTS

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_CODE_COWORK_FRAME_ARTIFACTS is a Claude Code environment variable. Added in v2.1.228 and still present in v2.1.295. It is not in the official reference.

Status	Present in v2.1.295
Added	Added in v2.1.228
Category	Other
Official docs	Not listed

How to set it

For one session, export it in the shell that starts Claude Code:

export CLAUDE_CODE_COWORK_FRAME_ARTIFACTS=<value>
claude

To apply it to every session, add it to the env object of a settings file:

// ~/.claude/settings.json
{
  "env": {
    "CLAUDE_CODE_COWORK_FRAME_ARTIFACTS": "<value>"
  }
}

Related variables

CLAUDE_CODE_IS_COWORK: Indicates running in cowork (multi-agent) mode.
CLAUDE_CODE_FRAME_TIMING_SAMPLE_EVERY
CLAUDE_CODE_INTRO_FRAME
CLAUDE_CODE_OWNERSHIP_FRAME
CLAUDE_CODE_PLAN_ARTIFACTS
ANTHROPIC_BETAS: Comma-separated beta feature headers.
ANTHROPIC_CUSTOM_HEADERS: Custom HTTP headers (newline-separated Key: Value).
ANTHROPIC_FEDERATION_RULE_ID

Frequently asked questions

Which Claude Code version has CLAUDE_CODE_COWORK_FRAME_ARTIFACTS?

Added in v2.1.228 and still present in v2.1.295.

How do I set CLAUDE_CODE_COWORK_FRAME_ARTIFACTS?

Export it before starting Claude Code (export CLAUDE_CODE_COWORK_FRAME_ARTIFACTS=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.

All variables, searchable: Claude Code environment variables.