CLAUDE_CODE_WORKFLOW_SIZE_WARNING_AGENTS

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_CODE_WORKFLOW_SIZE_WARNING_AGENTS is a Claude Code environment variable. Removed between v2.1.245 and v2.1.247, 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_CODE_WORKFLOW_SIZE_WARNING_AGENTS=<value>
claude

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

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

Related variables

• CLAUDE_CODE_WORKFLOW_MAX_CONCURRENT_AGENTS
• CLAUDE_AGENT_SDK_DISABLE_BUILTIN_AGENTS: Disable built-in agent types.
• CLAUDE_AGENTS_AUTO_RELAUNCHED_AT: Timestamp set when the agent fleet was automatically relaunched after a crash.
• CLAUDE_AGENTS_SELECT: Selects which agents from a fleet configuration are active for this session or job.
• CLAUDE_CODE_DISABLE_AGENTS_FLEET: Kill switch for the entire agent fleet subsystem — no selection, no auto-relaunch, no fleet coordination.
• CLAUDE_CODE_DISABLE_EXPLORE_PLAN_AGENTS
• CLAUDE_CODE_EXPERIMENTAL_OBSERVER_AGENTS: Agents that watch a session rather than act in it.
• CLAUDE_CODE_WORKFLOW_PREFIX_STAGGER_MS

Frequently asked questions

All variables, searchable: Claude Code environment variables.