CLAUDE_CODE_DISABLE_SUBSTITUTION_RM_PROMPT

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_DISABLE_SUBSTITUTION_RM_PROMPT is a Claude Code environment variable. Added between v2.1.269 and v2.1.283 and still present in v2.1.294. It is listed in the official reference.

Status	Present in v2.1.294
Added	Added between v2.1.269 and v2.1.283
Category	Feature toggles
Official docs	Listed

How to set it

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

export CLAUDE_CODE_DISABLE_SUBSTITUTION_RM_PROMPT=<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_SUBSTITUTION_RM_PROMPT": "<value>"
  }
}

Related variables

CLAUDE_CODE_DISABLE_CFC_PROMPT
DISABLE_PROMPT_CACHING: Prompt caching globally.
CLAUDE_CODE_DISABLE_ADMIN_ENV_UNION
CLAUDE_CODE_DISABLE_ARTIFACT
CLAUDE_CODE_DISABLE_ATTACHMENTS: File/image attachments.
CLAUDE_CODE_DISABLE_COMMAND_INJECTION_CHECK: Previously allowed disabling command injection detection.
CLAUDE_CODE_DISABLE_CRON: Disable cron/scheduled task functionality.
CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS: Experimental beta API features.

Frequently asked questions

Which Claude Code version has CLAUDE_CODE_DISABLE_SUBSTITUTION_RM_PROMPT?

Added between v2.1.269 and v2.1.283 and still present in v2.1.294.

How do I set CLAUDE_CODE_DISABLE_SUBSTITUTION_RM_PROMPT?

Export it before starting Claude Code (export CLAUDE_CODE_DISABLE_SUBSTITUTION_RM_PROMPT=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.