Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.251,
ImprovementsSection of the release
What
The dialog that MCP servers use to ask you for input takes an extra callback that is consulted when you press Enter, so the code opening the dialog can refuse the submission for reasons beyond the built-in required-field checks.
Details
If the caller always allows it, the dialog behaves exactly as before.
Evidence
accepts
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
