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
RemovedKind: in v2.1.312,
RemovedSection of the release
Unclear It is not known whether skills from MCP servers can still be run some other way.
What
A skill is a packaged set of instructions Claude can load when a task needs them. Claude runs a skill through the Skill tool. An MCP server is a connector that gives Claude extra tools and content.
When Claude now tries to run a skill that an MCP server supplied, the Skill tool rejects it with an "Unknown skill" error. The permission check does the same thing: once your deny rules have been checked, it refuses a skill that came from an MCP server.
Why
If you rely on skills from an MCP server, Claude can no longer start them through the Skill tool.
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 skills from MCP servers can still be run some other way.
