No Import Prefix

Ensure that all dependencies are declared in either deno.json or package.json.

This promotes better dependency management and makes it easier to track and update dependencies. It also helps Deno purge the lockfile when removing a dependency.

Invalid:

import foo from "https://deno.land/std/path/mod.ts";
import foo from "jsr:@std/path@1";
import foo from "npm:preact@10";

Valid:

import foo from "@std/path";

With a corresponding entry in the deno.json or package.json file:

{
  "imports": {
    "@std/path": "jsr:@std/path@1"
  }
}