CLAUDE_CODE_HOST_WORKTREE_FENCE

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_CODE_HOST_WORKTREE_FENCE is a Claude Code environment variable. Added in v2.1.288 and still present in v2.1.295. It is not in the official reference.

Status	Present in v2.1.295
Added	Added in v2.1.288
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_HOST_WORKTREE_FENCE=<value>
claude

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

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

Related variables

CLAUDE_CODE_HOST_WORKTREE
CLAUDE_CODE_HOST_PLATFORM: Override platform detection: win32, darwin, linux.
CLAUDE_CODE_WORKSPACE_HOST_PATHS: Specifies host-side filesystem paths that should be mapped or accessible within a workspace context.
CLAUDE_AI_HOST
CLAUDE_ARTIFACT_HOST_GRANT
CLAUDE_CODE_AUTOUPDATER_DISABLED_BY_HOST
CLAUDE_CODE_HOST_CREDS_FILE
CLAUDE_CODE_HOST_GATEWAY_LINEAGE

Frequently asked questions

Which Claude Code version has CLAUDE_CODE_HOST_WORKTREE_FENCE?

Added in v2.1.288 and still present in v2.1.295.

How do I set CLAUDE_CODE_HOST_WORKTREE_FENCE?

Export it before starting Claude Code (export CLAUDE_CODE_HOST_WORKTREE_FENCE=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.