Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.269 ·

New (currently inert) validation rejecting auto_open: "after_first_write" combined with certain tool configuration

A new but currently inactive check would reject certain artifact publish configurations combining auto_open with specific tool settings

TierNothing to try yethow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaArtifactswhat it touches
KindIn Developmentin v2.1.269,
Nothing to try yet No documentation found

A new but currently inactive check would reject certain artifact publish configurations combining auto_open with specific tool settings

What

A new validation check was added to the code that publishes Artifacts. It's designed to reject a publish call that sets auto_open: "after_first_write" together with a certain tool configuration, returning an error. However, the helper function that's supposed to detect that tool configuration always returns false, so the check can never actually trigger right now.

Why

This has no visible effect for users today since the check can never fire, but it signals a restriction on combining auto_open: "after_first_write" with certain tool settings that may become active in a future release.

Read from
Names in the bundleauto_open

See this entry in the whole of v2.1.269 →