CLAUDE_CODE_DISABLE_MTLS_RELOAD_ON_STALE_CONNECTION

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_DISABLE_MTLS_RELOAD_ON_STALE_CONNECTION is a Claude Code environment variable. Added between v2.1.229 and v2.1.234 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_DISABLE_MTLS_RELOAD_ON_STALE_CONNECTION=<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_MTLS_RELOAD_ON_STALE_CONNECTION": "<value>"
  }
}

Related variables

• CLAUDE_CODE_DISABLE_DANGEROUS_RM_TIMEOUT
• CLAUDE_CODE_DISABLE_MEMORY_STREAM_LIST: Turns off the incremental metadata-streaming path inside multi-store memory sync.
• CLAUDE_CODE_DISABLE_NONSTREAMING_FALLBACK: Disables the fallback path that retries failed streaming requests as non-streaming calls.
• MCP_CONNECTION_NONBLOCKING: Make MCP connections non-blocking.
• MCP_REMOTE_SERVER_CONNECTION_BATCH_SIZE: Remote MCP connection batch size.
• MCP_SERVER_CONNECTION_BATCH_SIZE: Concurrent MCP server connections.
• CLAUDE_CODE_DISABLE_REFUSAL_RETRY
• ANTHROPIC_BASE_URL: Custom endpoint for Anthropic services.

Frequently asked questions

All variables, searchable: Claude Code environment variables.