CLAUDE_CODE_DISABLE_ULTRAREVIEW_TRUST_CHECK

Updated October 22, 2026 by Alex Sorokoletov

CLAUDE_CODE_DISABLE_ULTRAREVIEW_TRUST_CHECK is a Claude Code environment variable: Set to 1 to skip the workspace-trust gate that claude ultrareview added in v2.1.309. Without it, ultrareview asks for trust on a terminal or refuses to run; --trust-workspace grants it inline.[1]. Added between v2.1.307 and v2.1.309 and still present in v2.1.309. It is not in the official reference.

How to set it

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

export CLAUDE_CODE_DISABLE_ULTRAREVIEW_TRUST_CHECK=<value>
claude

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

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

Release notes that mention it

• Claude Code Version Tracker: Undocumented Env Vars, Feature Gates & Models
• claude-code-env-vars-v2-1-309

Related variables

• CLAUDE_CODE_DISABLE_COMMAND_INJECTION_CHECK: Previously allowed disabling command injection detection.
• CLAUDE_CODE_DISABLE_NOTIFICATION_PRESENCE_CHECK
• CLAUDE_CODE_DISABLE_ARTIFACT
• CLAUDE_CODE_DISABLE_ATTACHMENTS: File/image attachments.
• CLAUDE_CODE_DISABLE_CFC_PROMPT
• CLAUDE_CODE_DISABLE_CRON: Disable cron/scheduled task functionality.
• CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS: Experimental beta API features.
• CLAUDE_CODE_DISABLE_EXPLORE_INHERIT_CAP: Lets the built-in Explore search agent run at the parent model instead of a cheaper capped default.

Frequently asked questions

All variables, searchable: Claude Code environment variables.