What
Skills are sets of instructions Claude can use for particular tasks. Claude Code keeps a list of core skills. It now takes that list from a policy sent by Anthropic's server, and uses the last list it received when none arrives. Before, it used a list built into Claude Code. When certain checks fail, the list is empty.
Why
Which skills count as core can now change without a new version of Claude Code.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
What the checks that empty the list look at is not settled.