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Sweep 28 Sep 2026 · 18:16Z Build v2.1.284 505 read Stable v2.1.277 Latest v2.1.284 Next v2.1.284 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.284 ·

Instructions ask for generated pages to work on phone-sized screens

New instructions tell Claude that pages it generates must work at about 400px wide and never scroll sideways

You'll notice Improvements
JSON All of v2.1.284
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.284,
ImprovementsSection of the release
What

Claude Code now includes new instructions about page layout. They tell Claude that pages it generates must also work at phone width, about 400 pixels across, and that the page must never scroll horizontally. They also call for a 16-pixel margin at the edges, among other layout rules.

Why

These instructions would change the HTML that Claude writes for artifacts, the standalone pages it can create, so that those pages fit small screens.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear when these instructions are given to Claude.

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