CLAUDE_CODE_WORKSPACE_HOST_PATHS

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_WORKSPACE_HOST_PATHS is a Claude Code environment variable: Specifies host-side filesystem paths that should be mapped or accessible within a workspace context. This is relevant for containerized and remote development scenarios where Claude Code runs inside a devcontainer or remote environment but needs to reference files on the host machine. Removed in v2.1.290, 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_WORKSPACE_HOST_PATHS=<value>
claude

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

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

Release notes that mention it

• Claude Code v2.1.76 — 3 New Environment Variables: MCP Elicitation and Worktree Improvements

Related variables

• CLAUDE_RUNNER_WORKSPACE_PATHS
• ANTHROPIC_WORKSPACE_ID
• CLAUDE_CODE_HOST_PLATFORM: Override platform detection: win32, darwin, linux.
• CLAUDE_AI_HOST
• CLAUDE_ARTIFACT_HOST_GRANT
• CLAUDE_CODE_HOST_CREDS_FILE
• CLAUDE_CODE_HOST_GATEWAY_LINEAGE
• CLAUDE_CODE_HOST_PROMPT_SUPERSEDES_RECORD

Frequently asked questions

All variables, searchable: Claude Code environment variables.