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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.267 ·

Artifact-comment prompt tightened so a head marker can never carry trailing text on its own line

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Artifact comment prompt now requires a head marker to stand alone on its own line, with no trailing text

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaArtifactswhat it touches
KindBug Fixesin v2.1.267,
Under the hood

Artifact comment prompt now requires a head marker to stand alone on its own line, with no trailing text

**What

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