CLAUDE_CHROME_TAB_GROUP_KEY

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_CHROME_TAB_GROUP_KEY is a Claude Code environment variable. Added in v2.1.286 and still present in v2.1.295. It is not in the official reference.

Status	Present in v2.1.295
Added	Added in v2.1.286
Category	Other
Official docs	Not listed

How to set it

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

export CLAUDE_CHROME_TAB_GROUP_KEY=<value>
claude

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

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

Related variables

CLAUDE_CHROME_CLASSIFIER_FLOOR
CLAUDE_CHROME_PAIRED_DEVICE_ID
CLAUDE_CODE_ARG_KEY_SHAPE
ANTHROPIC_BETAS: Comma-separated beta feature headers.
ANTHROPIC_CUSTOM_HEADERS: Custom HTTP headers (newline-separated Key: Value).
ANTHROPIC_FEDERATION_RULE_ID
ANTHROPIC_ORGANIZATION_ID
ANTHROPIC_WORKSPACE_ID

Frequently asked questions

Which Claude Code version has CLAUDE_CHROME_TAB_GROUP_KEY?

Added in v2.1.286 and still present in v2.1.295.

How do I set CLAUDE_CHROME_TAB_GROUP_KEY?

Export it before starting Claude Code (export CLAUDE_CHROME_TAB_GROUP_KEY=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.