{"version":"2.1.260","anchor":"artifact-publishing-can-copy-files-from-other-artifacts-but","canonical_anchor":"artifact-publishing-can-copy-files-from-other-artifacts-but","heading":"Artifact publishing can copy files from other artifacts, but it's off by default","tier":"soon","area":"Artifacts","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.260\/e\/artifact-publishing-can-copy-files-from-other-artifacts-but","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.260","markdown":"### Artifact publishing can copy files from other artifacts, but it's off by default\n\nArtifact publishing can copy files from other artifacts server-side, but it's off by default.\n\nArtifact publishing can now copy files from another artifact instead of only using local files, via a `copied` list in the publish input with `from_url`\/`from_path` entries, or a `files` entry shaped `{artifact, path, ver?}` that copies a published file server-side without downloading and re-uploading it. A separate `copy_from` action accepts `from_url` plus up to a capped number of `asset_ids` to copy assets between artifacts. Validation blocks copying an artifact's own `index.html`, blocks copying HTML\/SVG\/XML documents entirely, requires `ver` to be a valid version id, and caps the number of distinct source-artifact versions per publish.\n\nThis whole feature is off by default, gated by a remote flag (`tengu_cobalt_plinth_samphire`) that defaults to false. While off, any attempt to copy returns the fixed refusal \"copying files from another artifact is not enabled for this account \u2014 nothing was published; publish with local files instead\" and logs a `tengu_artifact_publish` event with reason `copy_from_flag_off`.\n\n- Flag `tengu_cobalt_plinth_samphire`: Off in both readings (read for one account on one subscription tier against v2.1.260; this account: off, anonymous baseline: off, compiled default: off) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Area: Artifacts\n- Names: `copied`, `copy_from`\n- Tier: Nothing to try yet\n- Useful: 2\/5\n- Signal: 2\/5\n- Present in the build but not switched on"}