CLAUDE_CODE_ARTIFACT_DELETE

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_ARTIFACT_DELETE is a Claude Code environment variable: Enables the delete-Artifact path (owner-only, requires confirmation, blocked in plan mode). The gate refuses in remote sessions and otherwise falls back to the tengu_cobalt_plinth_alder feature gate. Shipped v2.1.239 (2026-08-21). Added between v2.1.238 and v2.1.241 and still present in v2.1.294. 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_ARTIFACT_DELETE=<value>
claude

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

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

Release notes that mention it

• Claude Code Version Tracker: Undocumented Env Vars, Feature Gates & Models
• claude-code-env-vars-v2-1-241

Related variables

• CLAUDE_CODE_ARTIFACT: Turns on Artifacts, with companions for its API endpoint, direct upload, and MCP exposure.
• CLAUDE_CODE_ARTIFACT_AUTO_OPEN
• CLAUDE_CODE_ARTIFACT_COMMENTS
• CLAUDE_CODE_ARTIFACT_COMMENTS_AUTOREACT
• CLAUDE_CODE_ARTIFACT_PREVIEW_EMULATOR: Pins the artifact-preview emulator on (true) or off (false); left unset, a feature flag decides.
• CLAUDE_CODE_ARTIFACT_VERSIONS: When set, the session can list and read an artifact's earlier versions; without it, a session reports that an artifact's earlier versions are not available.
• CLAUDE_ARTIFACT_HOST_GRANT
• CLAUDE_CODE_ARTIFACT_ASSETS

Frequently asked questions

All variables, searchable: Claude Code environment variables.