CLAUDE_CODE_RESUME_INTERRUPTED_TURN_MAX_AGE_MS

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_RESUME_INTERRUPTED_TURN_MAX_AGE_MS is a Claude Code environment variable. Added between v2.1.143 and v2.1.212 and still present in v2.1.294. 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_RESUME_INTERRUPTED_TURN_MAX_AGE_MS=<value>
claude

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

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

Release notes that mention it

• claude-code-env-vars-v2-1-212

Related variables

• CLAUDE_CODE_RESUME_INTERRUPTED_TURN: Resume an interrupted agent turn.
• CLAUDE_CODE_RESUME_FROM_SESSION: Instructs Claude Code to bootstrap a new session's context from an existing session ID.
• CLAUDE_CODE_RESUME_PROMPT: Set the prompt injected when resuming a session.
• CLAUDE_CODE_RESUME_THRESHOLD_MINUTES: Sets the time window (in minutes) during which a session is eligible for automatic resume.
• CLAUDE_CODE_RESUME_PROMPT00
• CLAUDE_CODE_RESUME_REASON
• CLAUDE_CODE_RESUME_SOURCE_ALIVE
• CLAUDE_AUTO_BACKGROUND_TASKS: Enable automatic background task execution.

Frequently asked questions

All variables, searchable: Claude Code environment variables.