Diagnostic severities can be set in .editorconfig.nschema_diagnostic.<code>.severity configures one finding and nschema_diagnostic_source.<source>.severity every finding from a producer, taking Roslyn’s severity words (none, silent, suggestion, warning, error, default). A --destructive-actions flag still wins over the file.
The diagnostics table names each finding’s code, which is what a severity is configured by.
Fixed
import reports its diagnostics whether or not it succeeded. They were shown only on failure, so a successful import had no way to tell you what it could not carry into the project.
