ARC0005: Provided value has no consumer

What

A provide() method directly returns data while handle() accepts no parameters. Rule: arc-core/arc0005.

Why

The value is prepared but cannot be used by the handler. This rule only checks direct returns, not conditional or nested branches; control outcomes such as rejected(...) and denied(...) are exempt.

Bad

@command()
export class Register {
    provide() { return new Tasks(); }
    handle() {}
}

Good

@command()
export class Register {
    provide() { return new Tasks(); }
    handle(tasks: Tasks) { tasks.register(); }
}