{"name":"CLAUDE_CODE_ARTIFACT_TOOLSET","slug":"claude-code-artifact-toolset","family":"env","title":"Environment variables","noun":"environment variable","description":"Boolean (`1`\/`true`\/`yes`\/`on` or `0`\/`false`\/`no`\/`off`) that turns the split artifact toolset on or off; when unset, the `tengu_cobalt_plinth_damson` flag decides (default `false`). The choice is made once per session. When on, and where the split tools are available, the `Artifact` tool's database actions belong to an `ArtifactData` tool, its watch and comment actions to `ArtifactComments`, and its `verify` and `preview` actions to `ArtifactCheck`, and Claude Code's instructions name those tools.","description_source":"code","described_by":{"bundle":"2.1.286","author":"claude-opus-5-5"},"presence":{"first_seen":"2.1.257","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":47,"mined_builds":149,"first_cited":null},"aliases":[],"entries":[],"entries_total":0,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_ARTIFACT","slug":"claude-code-artifact","description":"PR review artifact pages can show a pinned button that approves the pull request from your GitHub account."},{"name":"CLAUDE_CODE_ARTIFACT_ASSET_BASE_URL","slug":"claude-code-artifact-asset-base-url","description":"Three artifact environment variables are now recognised, with the API token stripped from spawned processes as a secret."},{"name":"CLAUDE_CODE_ARTIFACT_ASSETS","slug":"claude-code-artifact-assets","description":"Claude can now upload, list, read and delete images, video, PDFs and fonts attached to your published artifacts."},{"name":"CLAUDE_CODE_ARTIFACT_AUTO_OPEN","slug":"claude-code-artifact-auto-open","description":"Set to `0` to stop Claude Code from opening the browser automatically when a new [artifact](\/docs\/en\/artifacts#create-an-artifact) is published"},{"name":"CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK","slug":"claude-code-artifact-comment-fast-ack","description":"Claude can post a quick 'on it' note in artifact comment threads before the real reply, off unless enabled."},{"name":"CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK_FIXED","slug":"claude-code-artifact-comment-fast-ack-fixed","description":"A second fast-ack mode lets Claude pick a fixed numbered acknowledgment instead of writing one, off behind two gates"},{"name":"CLAUDE_CODE_ARTIFACT_COMMENT_RESPONDER","slug":"claude-code-artifact-comment-responder","description":"A read-only subagent that analyses one artifact comment thread exists but stays off."},{"name":"CLAUDE_CODE_ARTIFACT_COMMENTS","slug":"claude-code-artifact-comments","description":"Set to `0` to stop Claude reading and replying to [comments on an artifact](\/docs\/en\/artifacts#collect-comments-on-an-artifact). Has no effect when `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC` has [turned artifacts off](\/docs\/en\/artifacts#availability). Requires Claude Code v2.1.221 or later"},{"name":"CLAUDE_CODE_ARTIFACT_COMMENTS_AUTOREACT","slug":"claude-code-artifact-comments-autoreact","description":"Set to `0` to stop Claude [replying on its own to comments sent to it](\/docs\/en\/artifacts#let-claude-reply-to-comments-on-its-own). Requires Claude Code v2.1.228 or later"},{"name":"CLAUDE_CODE_ARTIFACT_DB","slug":"claude-code-artifact-db","description":"Published artifacts can gain a document database Claude reads and writes, off unless you set the env var."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-artifact-toolset","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}