CLAUDE_CODE_TOOL_MEMORY_CGROUP_EXCLUDE

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_TOOL_MEMORY_CGROUP_EXCLUDE is a Claude Code environment variable. Added between v2.1.245 and v2.1.247 and still present in v2.1.294. It is listed in the official reference.

Status	Present in v2.1.294
Added	Added between v2.1.245 and v2.1.247
Category	Shell and tools
Official docs	Listed

How to set it

For one session, export it in the shell that starts Claude Code:

export CLAUDE_CODE_TOOL_MEMORY_CGROUP_EXCLUDE=<value>
claude

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

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

Related variables

CLAUDE_CODE_TOOL_MEMORY_LIMIT
CLAUDE_CODE_DISABLE_ADVISOR_TOOL: Disables what appears to be an internal advisory tool.
CLAUDE_CODE_EMIT_TOOL_USE_SUMMARIES: Emit tool use summary events.
CLAUDE_CODE_ENABLE_EXPERIMENTAL_ADVISOR_TOOL: Enables the experimental Advisor Tool — a server-side tool with its own advisorModel config option.
CLAUDE_CODE_MAX_TOOL_USE_CONCURRENCY: Max concurrent tool executions; default 10.
CLAUDE_CODE_USE_POWERSHELL_TOOL: Enables a PowerShell-specific tool variant for Windows environments.
ENABLE_LSP_TOOL: Enable Language Server Protocol tool.
ENABLE_TOOL_SEARCH: Tool search/deferred loading: auto, true, false, or 0–100%.

Frequently asked questions

Which Claude Code version has CLAUDE_CODE_TOOL_MEMORY_CGROUP_EXCLUDE?

Added between v2.1.245 and v2.1.247 and still present in v2.1.294.

How do I set CLAUDE_CODE_TOOL_MEMORY_CGROUP_EXCLUDE?

Export it before starting Claude Code (export CLAUDE_CODE_TOOL_MEMORY_CGROUP_EXCLUDE=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.