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
ImprovementsKind: in v2.1.221,
ImprovementsSection of the release
What
MCP servers that simply do not implement resource or prompt listing no longer surface a discovery error.
Details
Both discovery functions now skip attaching the stored error when the failure is a MethodNotFound JSON-RPC error, matching the behaviour resource templates already had.
Evidence
Ou.MethodNotFound
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
