CLAUDE_REPL_VERBOSE

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_REPL_VERBOSE is a Claude Code environment variable. Removed between v2.1.269 and v2.1.283, so current releases ignore it. 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_REPL_VERBOSE=<value>
claude

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

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

Related variables

• CLAUDE_CODE_REPL: Boolean toggle for the new native REPL path introduced by v2.1.113's native-binary launcher.
• CLAUDE_REPL_MODE: Sets the operating mode for the REPL interface.
• CLAUDE_REPL_MODE0: Prototype naming for the REPL mode configuration.
• CLAUDE_REPL_VARIANT: Selects which REPL implementation to load.
• CLAUDE_CODE_ARTIFACT_REPL
• ANTHROPIC_BETAS: Comma-separated beta feature headers.
• ANTHROPIC_CUSTOM_HEADERS: Custom HTTP headers (newline-separated Key: Value).
• ANTHROPIC_FEDERATION_RULE_ID

Frequently asked questions

All variables, searchable: Claude Code environment variables.