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+---
+description: >-
+  Create new ESLint rules for the @n8n/eslint-plugin-community-nodes package.
+  Use when adding a lint rule, creating a community node lint, or working on
+  eslint-plugin-community-nodes. Guides rule implementation, tests, docs, and
+  plugin registration.
+user_invocable: true
+---
+
+# Create Community Node Lint Rule
+
+Guide for adding new ESLint rules to `packages/@n8n/eslint-plugin-community-nodes/`.
+
+All paths below are relative to `packages/@n8n/eslint-plugin-community-nodes/`.
+
+## Step 1: Understand the Rule
+
+Before writing code, clarify:
+- **What** does the rule detect? (missing property, wrong pattern, bad value)
+- **Where** does it apply? (`.node.ts` files, credential classes, both)
+- **Severity**: `error` (must fix) or `warn` (should fix)?
+- **Fixable?** Can it be auto-fixed safely, or only suggest?
+- **Scope**: Both `recommended` configs, or exclude from `recommendedWithoutN8nCloudSupport`?
+
+## Step 2: Implement the Rule
+
+Create `src/rules/<rule-name>.ts`:
+
+```typescript
+import { AST_NODE_TYPES } from '@typescript-eslint/utils';
+
+import {
+  isNodeTypeClass,       // or isCredentialTypeClass
+  findClassProperty,
+  findObjectProperty,
+  createRule,
+} from '../utils/index.js';
+
+export const YourRuleNameRule = createRule({
+  name: 'rule-name',
+  meta: {
+    type: 'problem',  // or 'suggestion'
+    docs: {
+      description: 'One-line description of what the rule enforces',
+    },
+    messages: {
+      messageId: 'Human-readable message. Use {{placeholder}} for dynamic data.',
+    },
+    fixable: 'code',     // omit if not auto-fixable
+    hasSuggestions: true, // omit if no suggestions
+    schema: [],           // add options schema if configurable
+  },
+  defaultOptions: [],
+  create(context) {
+    return {
+      ClassDeclaration(node) {
+        if (!isNodeTypeClass(node)) return;
+
+        const descriptionProperty = findClassProperty(node, 'description');
+        if (!descriptionProperty) return;
+
+        const descriptionValue = descriptionProperty.value;
+        if (descriptionValue?.type !== AST_NODE_TYPES.ObjectExpression) return;
+
+        // Rule logic here — use findObjectProperty(), getLiteralValue(), etc.
+
+        context.report({
+          node: targetNode,
+          messageId: 'messageId',
+          data: { /* template vars */ },
+          fix(fixer) {
+            return fixer.replaceText(targetNode, 'replacement');
+          },
+        });
+      },
+    };
+  },
+});
+```
+
+**Naming**: Export as `PascalCaseRule` (e.g. `MissingPairedItemRule`). The `name` field is kebab-case.
+
+**Available AST helpers** — see [reference.md](reference.md) for the full catalog of `ast-utils` and `file-utils` exports.
+
+## Step 3: Write Tests
+
+Create `src/rules/<rule-name>.test.ts`:
+
+```typescript
+import { RuleTester } from '@typescript-eslint/rule-tester';
+
+import { YourRuleNameRule } from './rule-name.js';
+
+const ruleTester = new RuleTester();
+
+// Helper to generate test code — keeps test cases readable
+function createNodeCode(/* parameterize the varying parts */): string {
+  return `
+import type { INodeType, INodeTypeDescription } from 'n8n-workflow';
+
+export class TestNode implements INodeType {
+  description: INodeTypeDescription = {
+    displayName: 'Test Node',
+    name: 'testNode',
+    group: ['input'],
+    version: 1,
+    description: 'A test node',
+    defaults: { name: 'Test Node' },
+    inputs: [],
+    outputs: [],
+    properties: [],
+  };
+}`;
+}
+
+ruleTester.run('rule-name', YourRuleNameRule, {
+  valid: [
+    { name: 'class that does not implement INodeType', code: '...' },
+    { name: 'node with correct pattern', code: createNodeCode(/* correct */) },
+  ],
+  invalid: [
+    {
+      name: 'descriptive case name',
+      code: createNodeCode(/* incorrect */),
+      errors: [{ messageId: 'messageId', data: { /* expected template vars */ } }],
+      output: createNodeCode(/* expected after fix */),  // or `output: null` if no fix
+    },
+  ],
+});
+```
+
+**Test guidelines:**
+- Always test that non-INodeType classes are skipped (valid case)
+- Test both the error message and the fixed output for fixable rules
+- For rules with options, test each option combination
+- For rules using filesystem, mock with `vi.mock('../utils/file-utils.js')`
+- For suggestion-only rules, use `errors: [{ messageId, suggestions: [...] }]`
+
+## Step 4: Register the Rule
+
+### 4a. Add to `src/rules/index.ts`
+
+```typescript
+import { YourRuleNameRule } from './rule-name.js';
+
+// Add to the rules object:
+export const rules = {
+  // ... existing rules
+  'rule-name': YourRuleNameRule,
+} satisfies Record<string, AnyRuleModule>;
+```
+
+### 4b. Add to `src/plugin.ts` configs
+
+Add to **both** config objects (unless the rule depends on n8n cloud features):
+
+```typescript
+'@n8n/community-nodes/rule-name': 'error',  // or 'warn'
+```
+
+- Use `error` for rules that catch bugs or required patterns
+- Use `warn` for style/convention rules (like `options-sorted-alphabetically`)
+- If the rule uses `no-restricted-globals` or `no-restricted-imports` patterns,
+  only add to `recommended` (not `recommendedWithoutN8nCloudSupport`)
+
+## Step 5: Write Documentation
+
+Create `docs/rules/<rule-name>.md`:
+
+```markdown
+# Description of what the rule does (`@n8n/community-nodes/rule-name`)
+
+<!-- end auto-generated rule header -->
+
+## Rule Details
+
+Explain why this rule exists and what problem it prevents.
+
+## Examples
+
+### Incorrect
+
+\`\`\`typescript
+// code that triggers the rule
+\`\`\`
+
+### Correct
+
+\`\`\`typescript
+// code that passes the rule
+\`\`\`
+```
+
+The header above `<!-- end auto-generated rule header -->` will be regenerated by `pnpm build:docs`. Write a reasonable first version — it gets overwritten.
+
+## Step 6: Verify
+
+Run from `packages/@n8n/eslint-plugin-community-nodes/`:
+
+```bash
+pushd packages/@n8n/eslint-plugin-community-nodes
+pnpm test <rule-name>.test.ts   # tests pass
+pnpm typecheck                   # types are clean
+pnpm build                       # compiles
+pnpm build:docs                  # regenerates doc headers and README table
+pnpm lint:docs                   # docs match schema
+popd
+```
+
+## Checklist
+
+- [ ] Rule file: `src/rules/<rule-name>.ts`
+- [ ] Test file: `src/rules/<rule-name>.test.ts`
+- [ ] Registered in `src/rules/index.ts`
+- [ ] Added to configs in `src/plugin.ts`
+- [ ] Doc file: `docs/rules/<rule-name>.md`
+- [ ] README table updated via `pnpm build:docs`
+- [ ] All verification commands pass
diff --git a/.claude/plugins/n8n/skills/create-community-node-lint-rule/reference.md b/.claude/plugins/n8n/skills/create-community-node-lint-rule/reference.md
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+# AST & File Utilities Reference
+
+Helpers available from `../utils/index.js`. Use these instead of writing custom AST traversal.
+
+## ast-utils.ts
+
+### Class/Interface detection
+
+| Function | Returns | Use when |
+|----------|---------|----------|
+| `isNodeTypeClass(node)` | `boolean` | Check if class implements `INodeType` or extends `Node` |
+| `isCredentialTypeClass(node)` | `boolean` | Check if class implements `ICredentialType` |
+
+### Property finding
+
+| Function | Returns | Use when |
+|----------|---------|----------|
+| `findClassProperty(node, name)` | `PropertyDefinition \| null` | Find a property on a class (e.g. `description`, `icon`) |
+| `findObjectProperty(obj, name)` | `Property \| null` | Find a property in an object literal (Identifier key) |
+| `findJsonProperty(obj, name)` | `Property \| null` | Find a property with a Literal key (JSON-style `"key"`) |
+| `findArrayLiteralProperty(obj, name)` | `Property \| null` | Find a property whose value is an ArrayExpression |
+
+### Value extraction
+
+| Function | Returns | Use when |
+|----------|---------|----------|
+| `getLiteralValue(node)` | `string \| boolean \| number \| null` | Extract primitive from a Literal node |
+| `getStringLiteralValue(node)` | `string \| null` | Extract string specifically |
+| `getBooleanLiteralValue(node)` | `boolean \| null` | Extract boolean specifically |
+| `getModulePath(node)` | `string \| null` | Get import path from string literal or template literal |
+
+### Array operations
+
+| Function | Returns | Use when |
+|----------|---------|----------|
+| `hasArrayLiteralValue(arr, value)` | `boolean` | Check if array contains a specific string literal |
+| `extractCredentialInfoFromArray(element)` | `{ name, testedBy } \| null` | Parse credential object from array element |
+| `extractCredentialNameFromArray(element)` | `string \| null` | Get just the credential name from array element |
+
+### Method matching
+
+| Function | Returns | Use when |
+|----------|---------|----------|
+| `isThisHelpersAccess(node)` | `boolean` | Match `this.helpers` member expression |
+| `isThisMethodCall(node, method)` | `boolean` | Match `this.methodName(...)` calls |
+| `isThisHelpersMethodCall(node, method)` | `boolean` | Match `this.helpers.methodName(...)` calls |
+
+### Similarity
+
+| Function | Returns | Use when |
+|----------|---------|----------|
+| `findSimilarStrings(target, candidates, maxDistance?)` | `string[]` | Suggest similar names (Levenshtein distance) |
+
+## file-utils.ts
+
+### Path operations
+
+| Function | Use when |
+|----------|----------|
+| `isContainedWithin(child, parent)` | Check path is within a directory |
+| `safeJoinPath(base, ...parts)` | Join paths with traversal prevention |
+
+### Package.json
+
+| Function | Returns | Use when |
+|----------|---------|----------|
+| `findPackageJson(startDir)` | `string \| null` | Walk up to find nearest package.json |
+| `readPackageJsonN8n(startDir)` | `N8nPackageJson \| null` | Parse n8n config section |
+| `readPackageJsonCredentials(startDir)` | `Set<string>` | Get credential names from package.json |
+| `readPackageJsonNodes(startDir)` | `string[]` | Get resolved node file paths |
+
+### File system
+
+| Function | Use when |
+|----------|----------|
+| `validateIconPath(filePath, iconValue)` | Check icon file exists and is SVG |
+| `extractCredentialNameFromFile(filePath)` | Parse credential class name from file |
+| `fileExistsWithCaseSync(filePath)` | Case-sensitive existence check |
+| `findSimilarSvgFiles(dir, name)` | Suggest similar SVG filenames |
+
+### Credential verification
+
+| Function | Use when |
+|----------|----------|
+| `areAllCredentialUsagesTestedByNodes(startDir)` | Check all credentials have testedBy |