@studnicky/interface-suffix

Requires every retained contract interface declaration's name to end with Interface, including interfaces declared inside a namespace. Pure-data interfaces are outside this rule's scope; interface-must-be-contract owns their diagnostic. The suffix makes contract interfaces visually distinct from type aliases and classes at every call site.

Fixable: No · Options: No · Suggested severity: error

✗ Incorrect

// contract interface missing the Interface suffix
interface Foo { run(): void; }

// namespace-nested interface missing the suffix — no namespace exemption
namespace X {
  interface Foo { run(): void; }
}

✓ Correct

// contract interface name ends with Interface
interface FooInterface { run(): void; }

// namespace-nested interface with the suffix — not flagged
namespace X {
  interface FooInterface { run(): void; }
}

// pure-data interfaces are skipped here; interface-must-be-contract owns them
interface UserRecord {
  id: string;
}