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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.228 ·

Lookalike skill names can no longer shadow each other

Skills with visually identical names can no longer sneak past collision checks.

You'll notice Improvements
JSON All of v2.1.228
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SkillsArea: what it touches
ImprovementsKind: in v2.1.228,
ImprovementsSection of the release
What

Skill and command name collisions are compared after normalizing confusable characters, so a synced skill with a visually identical name can no longer slip past the check that drops it in favour of a local skill of the same name.

Details
  • Names are put through NFKC, then separators, control characters, format characters, default-ignorable code points and the braille blank U+2800 are stripped.
  • All dash punctuation and the minus sign fold to -; five colon lookalikes (U+A789, U+2236, U+0589, U+05C3, U+02D0) fold to :.
  • Case folding is applied last.
Evidence

/[\ua789\u2236\u0589\u05c3\u02d0]/g

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.228 →

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