Validation behavior
• Uses the `xmlschema` library in XML Schema 1.1 mode so assertions and type alternatives work out of the box. • Automatically resolves `xs:import` / `xs:include` targets relative to the uploaded bundle, optionally follows HTTP(S) URLs, and captures loader warnings. • Diagnostics list every violation with its XPath and sourceline so you can jump directly to the problematic node.
Import strategies
• Paste additional schemas as a JSON array that maps `path` to `schema` so relative imports become resolvable without rewriting your master XSD. • Use the Primary XSD URL field to fetch the main schema directly from a registry while keeping local overrides in the textarea. • Set the remote import checkbox if you want live HTTP fetches for schemaLocations outside the bundle (handy for standards-hosted definitions). Mix both approaches to override a vendor CDN schema with a local edit during troubleshooting.