CLAUDE_CODE_FIZZY_GROVE

Updated November 2, 2026 by Alex Sorokoletov

CLAUDE_CODE_FIZZY_GROVE is a Claude Code environment variable: When enabled, an interrupted run returns a different handling outcome than the default; the fallback value comes from a server-side setting. Added between v2.1.315 and v2.1.317 and still present in v2.1.317. It is not in the official reference.

Status	Present in v2.1.317
Added	Added between v2.1.315 and v2.1.317
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_FIZZY_GROVE=<value>
claude

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

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

Related variables

ANTHROPIC_BETAS: Comma-separated beta feature headers.
ANTHROPIC_CUSTOM_HEADERS: Custom HTTP headers (newline-separated Key: Value).
ANTHROPIC_FEDERATION_RULE_ID
ANTHROPIC_ORGANIZATION_ID
ANTHROPIC_WORKSPACE_ID
BETA_TRACING_ENDPOINT: Custom endpoint for beta tracing.
CLAUDE_AFK_COUNTDOWN_MS: Milliseconds before the away-from-keyboard timeout at which the warning countdown begins; defaults to 20000 and is capped at the timeout length.
CLAUDE_AI_ORIGIN: Overrides the base URL for Claude AI authentication endpoints.

Frequently asked questions

What does CLAUDE_CODE_FIZZY_GROVE do?

When enabled, an interrupted run returns a different handling outcome than the default; the fallback value comes from a server-side setting.

Which Claude Code version has CLAUDE_CODE_FIZZY_GROVE?

Added between v2.1.315 and v2.1.317 and still present in v2.1.317.

How do I set CLAUDE_CODE_FIZZY_GROVE?

Export it before starting Claude Code (export CLAUDE_CODE_FIZZY_GROVE=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.