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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.283 ·

The claude-ai: skill prefix is gone and plugin skills gain shorter names

Skill names starting claude-ai: are no longer mapped to anthropic-skills:, and plugin skills can now be reached by shorter aliases

You'll notice Removed
JSON All of v2.1.283
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SkillsArea: what it touches
RemovedKind: in v2.1.283,
RemovedSection of the release
What

A skill is a named set of instructions Claude can call on, and some skills have more than one name. Claude Code no longer knows about the claude-ai: prefix. Only anthropic-skills remains, and claude-ai: names are no longer translated to or from anthropic-skills:.

At the same time:

  • A plugin skill named like name:name can now also be called anthropic-skills:name or plain name, plus any aliases it declares.
  • A synced or plugin skill named anthropic-skills:name also gains a name:name style alias.
Why

Old references to a skill as claude-ai:skill may stop working, while plugin skills become reachable by shorter names.

Read from
Names in the bundleclaude-ai:anthropic-skills:
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 known whether anything still produces `claude-ai:` skill names.
Anthropic's release notes agreeReverted the 2.1.282 reservation of the claude-ai name: skills, commands, workflows and MCP servers' skills and prompts so named load again…

See this entry in the whole of v2.1.283 →

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