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packages/@n8n/eslint-plugin-community-nodes/docs/rules/no-restricted-globals.md

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+# Disallow usage of restricted global variables in community nodes (`@n8n/community-nodes/no-restricted-globals`)
+
+💼 This rule is enabled in the ✅ `recommended` config.
+
+<!-- end auto-generated rule header -->
+
+## Rule Details
+
+Prevents the use of Node.js global variables that are not allowed in n8n Cloud. While these globals may be available in self-hosted environments, they are restricted on n8n Cloud for security and stability reasons.
+
+Restricted globals include: `clearInterval`, `clearTimeout`, `global`, `globalThis`, `process`, `setInterval`, `setTimeout`, `setImmediate`, `clearImmediate`, `__dirname`, `__filename`.
+
+## Examples
+
+### ❌ Incorrect
+
+```typescript
+export class MyNode implements INodeType {
+  async execute(this: IExecuteFunctions) {
+    // These globals are not allowed on n8n Cloud
+    const pid = process.pid;
+    const dir = __dirname;
+
+    setTimeout(() => {
+      console.log('This will not work on n8n Cloud');
+    }, 1000);
+
+    return this.prepareOutputData([]);
+  }
+}
+```
+
+### ✅ Correct
+
+```typescript
+export class MyNode implements INodeType {
+  async execute(this: IExecuteFunctions) {
+    // Use n8n context methods instead
+    const timezone = this.getTimezone();
+
+    return this.prepareOutputData([]);
+  }
+}
+```