You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SkillsArea: what it touches
ImprovementsKind: in v2.1.287,
ImprovementsSection of the release
What
A skill is a packaged set of instructions Claude can load for a particular kind of task, and the Skill tool is how it loads one. When you type a prompt yourself, Claude Code now checks it for skill names and attaches a note listing the skills you mentioned. This happens only when:
the prompt was typed by a person, not generated
the Skill tool is available in the session
a further internal check passes
The check reads your prompt as you typed it, before any of it is expanded.
Why
In practice, the model now gets a separate note saying which skills you named, alongside your prompt.
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 what the further check tests, or whether the note is meant to push the model toward using the named skills.
