Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.234,
ImprovementsSection of the release
What
A hook that returns a skill_listing must now return an array whose length is capped and whose entries are strings under a length cap. Previously any array was accepted, so malformed entries reached the rest of Claude Code.
Evidence
skill_listing
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
