CLAUDE_CODE_DISABLE_CRON

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_DISABLE_CRON is a Claude Code environment variable: Disable cron/scheduled task functionality. Claude Code recently added /cron for recurring tasks — this lets you turn it off entirely. Removed in v2.1.293, so current releases ignore it. It is listed in the official reference.

How to set it

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

export CLAUDE_CODE_DISABLE_CRON=<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_CRON": "<value>"
  }
}

Release notes that mention it

• Claude Code v2.1.72 — 6 New Environment Variables: Brief Mode, Cron Control & Two-Stage Classifier

Related variables

• CLAUDE_CODE_DISABLE_ADMIN_ENV_UNION
• CLAUDE_CODE_DISABLE_ARTIFACT
• CLAUDE_CODE_DISABLE_ATTACHMENTS: File/image attachments.
• CLAUDE_CODE_DISABLE_CFC_PROMPT
• CLAUDE_CODE_DISABLE_COMMAND_INJECTION_CHECK: Previously allowed disabling command injection detection.
• 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.
• CLAUDE_CODE_DISABLE_FILE_CHECKPOINTING: Git-based file checkpointing/backup.

Frequently asked questions

All variables, searchable: Claude Code environment variables.