chore: release v2.13.1 - remove 5-operation limit

- Remove 5-operation limit from n8n_update_partial_workflow
- Update CHANGELOG.md with version 2.13.1 entry
- Bump version in package.json to 2.13.1
- Remove static version badge from README.md (npm badge remains)

The workflow diff engine now supports unlimited operations per request,
enabling complex workflow refactoring in single API calls.

README.md

@@ -2,7 +2,6 @@
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![GitHub stars](https://img.shields.io/github/stars/czlonkowski/n8n-mcp?style=social)](https://github.com/czlonkowski/n8n-mcp)
-[![Version](https://img.shields.io/badge/version-2.13.0-blue.svg)](https://github.com/czlonkowski/n8n-mcp)
 [![npm version](https://img.shields.io/npm/v/n8n-mcp.svg)](https://www.npmjs.com/package/n8n-mcp)
 [![codecov](https://codecov.io/gh/czlonkowski/n8n-mcp/graph/badge.svg?token=YOUR_TOKEN)](https://codecov.io/gh/czlonkowski/n8n-mcp)
 [![Tests](https://img.shields.io/badge/tests-1728%20passing-brightgreen.svg)](https://github.com/czlonkowski/n8n-mcp/actions)

docs/CHANGELOG.md

@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.13.1] - 2025-01-24
+
+### Changed
+- **Removed 5-operation limit from n8n_update_partial_workflow**: The workflow diff engine now supports unlimited operations per request
+  - Previously limited to 5 operations for "transactional integrity"
+  - Analysis revealed the limit was unnecessary - the clone-validate-apply pattern already ensures atomicity
+  - All operations are validated before any are applied, maintaining data integrity
+  - Enables complex workflow refactoring in single API calls
+  - Updated documentation and examples to demonstrate large batch operations (26+ operations)
+
 ## [2.13.0] - 2025-01-24
 
 ### Added

package.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp",
-  "version": "2.13.0",
+  "version": "2.13.1",
   "description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
   "main": "dist/index.js",
   "bin": {

src/mcp/tool-docs/validation/validate-workflow.ts

@@ -76,6 +76,6 @@ export const validateWorkflowDoc: ToolDocumentation = {
       'Validation cannot catch all runtime errors (e.g., API failures)',
       'Profile setting only affects node validation, not connection/expression checks'
     ],
-    relatedTools: ['validate_workflow_connections', 'validate_workflow_expressions', 'validate_node_operation', 'n8n_create_workflow', 'n8n_update_partial_workflow']
+    relatedTools: ['validate_workflow_connections', 'validate_workflow_expressions', 'validate_node_operation', 'n8n_create_workflow', 'n8n_update_partial_workflow', 'n8n_autofix_workflow']
   }
 };

src/mcp/tool-docs/workflow_management/n8n-validate-workflow.ts

@@ -66,6 +66,6 @@ Requires N8N_API_URL and N8N_API_KEY environment variables to be configured.`,
       'Profile affects validation time - strict is slower but more thorough',
       'Expression validation may flag working but non-standard syntax'
     ],
-    relatedTools: ['validate_workflow', 'n8n_get_workflow', 'validate_workflow_expressions', 'n8n_health_check']
+    relatedTools: ['validate_workflow', 'n8n_get_workflow', 'validate_workflow_expressions', 'n8n_health_check', 'n8n_autofix_workflow']
   }
 };

src/scripts/test-autofix-documentation.ts

@@ -0,0 +1,121 @@
+#!/usr/bin/env npx tsx
+
+/**
+ * Test script to verify n8n_autofix_workflow documentation is properly integrated
+ */
+
+import { toolsDocumentation } from '../mcp/tool-docs';
+import { getToolDocumentation } from '../mcp/tools-documentation';
+import { Logger } from '../utils/logger';
+
+const logger = new Logger({ prefix: '[AutofixDoc Test]' });
+
+async function testAutofixDocumentation() {
+  logger.info('Testing n8n_autofix_workflow documentation...\n');
+
+  // Test 1: Check if documentation exists in the registry
+  logger.info('Test 1: Checking documentation registry');
+  const hasDoc = 'n8n_autofix_workflow' in toolsDocumentation;
+  if (hasDoc) {
+    logger.info('✅ Documentation found in registry');
+  } else {
+    logger.error('❌ Documentation NOT found in registry');
+    logger.info('Available tools:', Object.keys(toolsDocumentation).filter(k => k.includes('autofix')));
+  }
+
+  // Test 2: Check documentation structure
+  if (hasDoc) {
+    logger.info('\nTest 2: Checking documentation structure');
+    const doc = toolsDocumentation['n8n_autofix_workflow'];
+
+    const hasEssentials = doc.essentials &&
+                         doc.essentials.description &&
+                         doc.essentials.keyParameters &&
+                         doc.essentials.example;
+
+    const hasFull = doc.full &&
+                   doc.full.description &&
+                   doc.full.parameters &&
+                   doc.full.examples;
+
+    if (hasEssentials) {
+      logger.info('✅ Essentials documentation complete');
+      logger.info(`  Description: ${doc.essentials.description.substring(0, 80)}...`);
+      logger.info(`  Key params: ${doc.essentials.keyParameters.join(', ')}`);
+    } else {
+      logger.error('❌ Essentials documentation incomplete');
+    }
+
+    if (hasFull) {
+      logger.info('✅ Full documentation complete');
+      logger.info(`  Parameters: ${Object.keys(doc.full.parameters).join(', ')}`);
+      logger.info(`  Examples: ${doc.full.examples.length} provided`);
+    } else {
+      logger.error('❌ Full documentation incomplete');
+    }
+  }
+
+  // Test 3: Test getToolDocumentation function
+  logger.info('\nTest 3: Testing getToolDocumentation function');
+
+  try {
+    const essentialsDoc = getToolDocumentation('n8n_autofix_workflow', 'essentials');
+    if (essentialsDoc.includes("Tool 'n8n_autofix_workflow' not found")) {
+      logger.error('❌ Essentials documentation retrieval failed');
+    } else {
+      logger.info('✅ Essentials documentation retrieved');
+      const lines = essentialsDoc.split('\n').slice(0, 3);
+      lines.forEach(line => logger.info(`  ${line}`));
+    }
+  } catch (error) {
+    logger.error('❌ Error retrieving essentials documentation:', error);
+  }
+
+  try {
+    const fullDoc = getToolDocumentation('n8n_autofix_workflow', 'full');
+    if (fullDoc.includes("Tool 'n8n_autofix_workflow' not found")) {
+      logger.error('❌ Full documentation retrieval failed');
+    } else {
+      logger.info('✅ Full documentation retrieved');
+      const lines = fullDoc.split('\n').slice(0, 3);
+      lines.forEach(line => logger.info(`  ${line}`));
+    }
+  } catch (error) {
+    logger.error('❌ Error retrieving full documentation:', error);
+  }
+
+  // Test 4: Check if tool is listed in workflow management tools
+  logger.info('\nTest 4: Checking workflow management tools listing');
+  const workflowTools = Object.keys(toolsDocumentation).filter(k => k.startsWith('n8n_'));
+  const hasAutofix = workflowTools.includes('n8n_autofix_workflow');
+
+  if (hasAutofix) {
+    logger.info('✅ n8n_autofix_workflow is listed in workflow management tools');
+    logger.info(`  Total workflow tools: ${workflowTools.length}`);
+
+    // Show related tools
+    const relatedTools = workflowTools.filter(t =>
+      t.includes('validate') || t.includes('update') || t.includes('fix')
+    );
+    logger.info(`  Related tools: ${relatedTools.join(', ')}`);
+  } else {
+    logger.error('❌ n8n_autofix_workflow NOT listed in workflow management tools');
+  }
+
+  // Summary
+  logger.info('\n' + '='.repeat(60));
+  logger.info('Summary:');
+
+  if (hasDoc && hasAutofix) {
+    logger.info('✨ Documentation integration successful!');
+    logger.info('The n8n_autofix_workflow tool documentation is properly integrated.');
+    logger.info('\nTo use in MCP:');
+    logger.info('  - Essentials: tools_documentation({topic: "n8n_autofix_workflow"})');
+    logger.info('  - Full: tools_documentation({topic: "n8n_autofix_workflow", depth: "full"})');
+  } else {
+    logger.error('⚠️ Documentation integration incomplete');
+    logger.info('Please check the implementation and rebuild the project.');
+  }
+}
+
+testAutofixDocumentation().catch(console.error);

src/scripts/test-webhook-autofix.ts

@@ -0,0 +1,149 @@
+#!/usr/bin/env node
+
+/**
+ * Test script for webhook path autofixer functionality
+ */
+
+import { NodeRepository } from '../database/node-repository';
+import { createDatabaseAdapter } from '../database/database-adapter';
+import { WorkflowAutoFixer } from '../services/workflow-auto-fixer';
+import { WorkflowValidator } from '../services/workflow-validator';
+import { EnhancedConfigValidator } from '../services/enhanced-config-validator';
+import { Workflow } from '../types/n8n-api';
+import { Logger } from '../utils/logger';
+import { join } from 'path';
+
+const logger = new Logger({ prefix: '[TestWebhookAutofix]' });
+
+// Test workflow with webhook missing path
+const testWorkflow: Workflow = {
+  id: 'test_webhook_fix',
+  name: 'Test Webhook Autofix',
+  active: false,
+  nodes: [
+    {
+      id: '1',
+      name: 'Webhook',
+      type: 'n8n-nodes-base.webhook',
+      typeVersion: 2.1,
+      position: [250, 300],
+      parameters: {}, // Empty parameters - missing path
+    },
+    {
+      id: '2',
+      name: 'HTTP Request',
+      type: 'n8n-nodes-base.httpRequest',
+      typeVersion: 4.2,
+      position: [450, 300],
+      parameters: {
+        url: 'https://api.example.com/data',
+        method: 'GET'
+      }
+    }
+  ],
+  connections: {
+    'Webhook': {
+      main: [[{
+        node: 'HTTP Request',
+        type: 'main',
+        index: 0
+      }]]
+    }
+  },
+  settings: {
+    executionOrder: 'v1'
+  },
+  staticData: undefined
+};
+
+async function testWebhookAutofix() {
+  logger.info('Testing webhook path autofixer...');
+
+  // Initialize database and repository
+  const dbPath = join(process.cwd(), 'data', 'nodes.db');
+  const adapter = await createDatabaseAdapter(dbPath);
+  const repository = new NodeRepository(adapter);
+
+  // Create validators
+  const validator = new WorkflowValidator(repository, EnhancedConfigValidator);
+  const autoFixer = new WorkflowAutoFixer(repository);
+
+  // Step 1: Validate workflow to identify issues
+  logger.info('Step 1: Validating workflow to identify issues...');
+  const validationResult = await validator.validateWorkflow(testWorkflow);
+
+  console.log('\n📋 Validation Summary:');
+  console.log(`- Valid: ${validationResult.valid}`);
+  console.log(`- Errors: ${validationResult.errors.length}`);
+  console.log(`- Warnings: ${validationResult.warnings.length}`);
+
+  if (validationResult.errors.length > 0) {
+    console.log('\n❌ Errors found:');
+    validationResult.errors.forEach(error => {
+      console.log(`  - [${error.nodeName || error.nodeId}] ${error.message}`);
+    });
+  }
+
+  // Step 2: Generate fixes (preview mode)
+  logger.info('\nStep 2: Generating fixes in preview mode...');
+
+  const fixResult = autoFixer.generateFixes(
+    testWorkflow,
+    validationResult,
+    [], // No expression format issues to pass
+    {
+      applyFixes: false, // Preview mode
+      fixTypes: ['webhook-missing-path'] // Only test webhook fixes
+    }
+  );
+
+  console.log('\n🔧 Fix Results:');
+  console.log(`- Summary: ${fixResult.summary}`);
+  console.log(`- Total fixes: ${fixResult.stats.total}`);
+  console.log(`- Webhook path fixes: ${fixResult.stats.byType['webhook-missing-path']}`);
+
+  if (fixResult.fixes.length > 0) {
+    console.log('\n📝 Detailed Fixes:');
+    fixResult.fixes.forEach(fix => {
+      console.log(`  - Node: ${fix.node}`);
+      console.log(`    Field: ${fix.field}`);
+      console.log(`    Type: ${fix.type}`);
+      console.log(`    Before: ${fix.before || 'undefined'}`);
+      console.log(`    After: ${fix.after}`);
+      console.log(`    Confidence: ${fix.confidence}`);
+      console.log(`    Description: ${fix.description}`);
+    });
+  }
+
+  if (fixResult.operations.length > 0) {
+    console.log('\n🔄 Operations to Apply:');
+    fixResult.operations.forEach(op => {
+      if (op.type === 'updateNode') {
+        console.log(`  - Update Node: ${op.nodeId}`);
+        console.log(`    Updates: ${JSON.stringify(op.updates, null, 2)}`);
+      }
+    });
+  }
+
+  // Step 3: Verify UUID format
+  if (fixResult.fixes.length > 0) {
+    const webhookFix = fixResult.fixes.find(f => f.type === 'webhook-missing-path');
+    if (webhookFix) {
+      const uuid = webhookFix.after as string;
+      const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+      const isValidUUID = uuidRegex.test(uuid);
+
+      console.log('\n✅ UUID Validation:');
+      console.log(`  - Generated UUID: ${uuid}`);
+      console.log(`  - Valid format: ${isValidUUID ? 'Yes' : 'No'}`);
+    }
+  }
+
+  logger.info('\n✨ Webhook autofix test completed successfully!');
+}
+
+// Run test
+testWebhookAutofix().catch(error => {
+  logger.error('Test failed:', error);
+  process.exit(1);
+});