Initial commit

src/rules/require-node-prefix.ts

@@ -0,0 +1,36 @@
+// @ts-check
+import { builtinModules } from "node:module";
+import type { Rule } from "eslint";
+
+const rule: Rule.RuleModule = {
+  meta: {
+    type: "problem",
+    docs: {
+      description:
+        "Disallow imports of built-in Node.js modules without the `node:` prefix",
+      category: "Best Practices",
+      recommended: true,
+    },
+    fixable: "code",
+    schema: [],
+  },
+  create: context => ({
+    ImportDeclaration(node) {
+      const { source } = node;
+
+      if (source?.type === "Literal" && typeof source.value === "string") {
+        const moduleName = source.value;
+
+        if (builtinModules.includes(moduleName) && !moduleName.startsWith("node:")) {
+          context.report({
+            node: source,
+            message: `Import of built-in Node.js module "${moduleName}" must use the "node:" prefix.`,
+            fix: fixer => fixer.replaceText(source, `"node:${moduleName}"`),
+          });
+        }
+      }
+    },
+  }),
+};
+
+export default rule;