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fix: integrate webhook autofixer with MCP server and improve template sanitization

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- Register n8n_autofix_workflow handler in MCP server
- Export n8nAutofixWorkflowDoc in tool documentation indices
- Use normalizeNodeType utility in workflow validator for consistent type handling
- Add defensive null checks in template sanitizer to prevent runtime errors
- Update workflow validator test to handle new error message formats

These changes complete the webhook autofixer integration, ensuring the tool
is properly exposed through the MCP server and documentation system.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
2025-09-24 11:43:24 +02:00
parent 3b469d0afe
commit 4390b72d2a
7 changed files with 49 additions and 36 deletions
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39
src/services/workflow-validator.ts
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@@ -8,6 +8,7 @@ import { EnhancedConfigValidator } from './enhanced-config-validator';
import { ExpressionValidator } from './expression-validator';
import { ExpressionFormatValidator } from './expression-format-validator';
import { NodeSimilarityService, NodeSuggestion } from './node-similarity-service';
import { normalizeNodeType } from '../utils/node-type-utils';
import { Logger } from '../utils/logger';
const logger = new Logger({ prefix: '[WorkflowValidator]' });
@@ -246,8 +247,8 @@ export class WorkflowValidator {
// Check for minimum viable workflow
if (workflow.nodes.length === 1) {
const singleNode = workflow.nodes[0];
const normalizedType = singleNode.type.replace('n8n-nodes-base.', 'nodes-base.');
const isWebhook = normalizedType === 'nodes-base.webhook' ||
const normalizedType = normalizeNodeType(singleNode.type);
const isWebhook = normalizedType === 'nodes-base.webhook' ||
normalizedType === 'nodes-base.webhookTrigger';
if (!isWebhook) {
@@ -303,8 +304,8 @@ export class WorkflowValidator {
// Count trigger nodes - normalize type names first
const triggerNodes = workflow.nodes.filter(n => {
const normalizedType = n.type.replace('n8n-nodes-base.', 'nodes-base.');
return normalizedType.toLowerCase().includes('trigger') ||
const normalizedType = normalizeNodeType(n.type);
return normalizedType.toLowerCase().includes('trigger') ||
normalizedType.toLowerCase().includes('webhook') ||
normalizedType === 'nodes-base.start' ||
normalizedType === 'nodes-base.manualTrigger' ||
@@ -378,19 +379,11 @@ export class WorkflowValidator {
// Get node definition - try multiple formats
let nodeInfo = this.nodeRepository.getNode(node.type);
// If not found, try with normalized type
if (!nodeInfo) {
let normalizedType = node.type;
// Handle n8n-nodes-base -> nodes-base
if (node.type.startsWith('n8n-nodes-base.')) {
normalizedType = node.type.replace('n8n-nodes-base.', 'nodes-base.');
nodeInfo = this.nodeRepository.getNode(normalizedType);
}
// Handle @n8n/n8n-nodes-langchain -> nodes-langchain
else if (node.type.startsWith('@n8n/n8n-nodes-langchain.')) {
normalizedType = node.type.replace('@n8n/n8n-nodes-langchain.', 'nodes-langchain.');
const normalizedType = normalizeNodeType(node.type);
if (normalizedType !== node.type) {
nodeInfo = this.nodeRepository.getNode(normalizedType);
}
}
@@ -618,8 +611,8 @@ export class WorkflowValidator {
for (const node of workflow.nodes) {
if (node.disabled || this.isStickyNote(node)) continue;
const normalizedType = node.type.replace('n8n-nodes-base.', 'nodes-base.');
const isTrigger = normalizedType.toLowerCase().includes('trigger') ||
const normalizedType = normalizeNodeType(node.type);
const isTrigger = normalizedType.toLowerCase().includes('trigger') ||
normalizedType.toLowerCase().includes('webhook') ||
normalizedType === 'nodes-base.start' ||
normalizedType === 'nodes-base.manualTrigger' ||
@@ -835,16 +828,8 @@ export class WorkflowValidator {
// Try normalized type if not found
if (!targetNodeInfo) {
let normalizedType = targetNode.type;
// Handle n8n-nodes-base -> nodes-base
if (targetNode.type.startsWith('n8n-nodes-base.')) {
normalizedType = targetNode.type.replace('n8n-nodes-base.', 'nodes-base.');
targetNodeInfo = this.nodeRepository.getNode(normalizedType);
}
// Handle @n8n/n8n-nodes-langchain -> nodes-langchain
else if (targetNode.type.startsWith('@n8n/n8n-nodes-langchain.')) {
normalizedType = targetNode.type.replace('@n8n/n8n-nodes-langchain.', 'nodes-langchain.');
const normalizedType = normalizeNodeType(targetNode.type);
if (normalizedType !== targetNode.type) {
targetNodeInfo = this.nodeRepository.getNode(normalizedType);
}
}