CLAUDE_CODE_REMOVE_PROMPT_STRINGS

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_CODE_REMOVE_PROMPT_STRINGS is a Claude Code environment variable. Added in v2.1.290 and still present in v2.1.295. It is not in the official reference.

Status	Present in v2.1.295
Added	Added in v2.1.290
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_REMOVE_PROMPT_STRINGS=<value>
claude

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

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

Related variables

CLAUDE_CODE_PROMPT_CACHE_TTL
CLAUDE_CODE_SIMPLE_SYSTEM_PROMPT: Switches to a reduced system prompt, stripping out the non-essential guidance sections that bulk up the default prompt.
CLAUDE_CODE_SYSTEM_PROMPT_GB_FEATURE: Names a GrowthBook feature flag whose value overrides the system prompt — but only when CLAUDE_CODE_REMOTE is set.
CLAUDE_CODE_VERIFY_PROMPT: The verify flow was reworked; the standalone prompt override no longer maps to how verification runs.
CLAUDE_CODE_APPEND_PROMPT_HEAD
CLAUDE_CODE_HOST_PROMPT_SUPERSEDES_RECORD
CLAUDE_CODE_MORNING_BRIEF_PROMPT
ANTHROPIC_BETAS: Comma-separated beta feature headers.

Frequently asked questions

Which Claude Code version has CLAUDE_CODE_REMOVE_PROMPT_STRINGS?

Added in v2.1.290 and still present in v2.1.295.

How do I set CLAUDE_CODE_REMOVE_PROMPT_STRINGS?

Export it before starting Claude Code (export CLAUDE_CODE_REMOVE_PROMPT_STRINGS=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.