You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
In DevelopmentKind: in v2.1.221,
In DevelopmentSection of the release
What
A wrapper around the JSON-schema validator removes the $schema property when it names a recognised meta-schema and validates the remainder, so MCP tools declaring a standard $schema do not trip validation on that key.
Details
A trailing # on the meta-schema URI is tolerated.
Only recognised meta-schema values are stripped; anything else is left in place.
Whether this path is reached on every validation could not be resolved from the build.
Evidence
$schema
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
