chore: update n8n to 2.13.3 and bump version to 2.41.0

- Updated n8n from 2.12.3 to 2.13.3
- Updated n8n-core from 2.12.0 to 2.13.1
- Updated n8n-workflow from 2.12.0 to 2.13.1
- Updated @n8n/n8n-nodes-langchain from 2.12.0 to 2.13.1
- Rebuilt node database with 1,396 nodes (812 core + 584 community: 516 verified + 68 npm)
- Refreshed community nodes with 581 AI-generated documentation summaries
- Improved documentation generator: strip <think> tags, raw fetch for vLLM chat_template_kwargs
- Incremental community updates: saveNode uses ON CONFLICT DO UPDATE preserving READMEs/AI summaries
- fetch:community now upserts by default (use --rebuild for clean slate)
- Updated README badge and node counts
- Updated CHANGELOG and MEMORY_N8N_UPDATE.md

Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

Co-Authored-By: Claude <noreply@anthropic.com>

dist/database/node-repository.d.ts.map

@@ -1 +1 @@
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dist/database/node-repository.js

@@ -13,7 +13,7 @@ class NodeRepository {
     }
     saveNode(node) {
         const stmt = this.db.prepare(`
-      INSERT OR REPLACE INTO nodes (
+      INSERT INTO nodes (
         node_type, package_name, display_name, description,
         category, development_style, is_ai_tool, is_trigger,
         is_webhook, is_versioned, is_tool_variant, tool_variant_of,
@@ -23,6 +23,35 @@ class NodeRepository {
         is_community, is_verified, author_name, author_github_url,
         npm_package_name, npm_version, npm_downloads, community_fetched_at
       ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+      ON CONFLICT(node_type) DO UPDATE SET
+        package_name = excluded.package_name,
+        display_name = excluded.display_name,
+        description = excluded.description,
+        category = excluded.category,
+        development_style = excluded.development_style,
+        is_ai_tool = excluded.is_ai_tool,
+        is_trigger = excluded.is_trigger,
+        is_webhook = excluded.is_webhook,
+        is_versioned = excluded.is_versioned,
+        is_tool_variant = excluded.is_tool_variant,
+        tool_variant_of = excluded.tool_variant_of,
+        has_tool_variant = excluded.has_tool_variant,
+        version = excluded.version,
+        documentation = excluded.documentation,
+        properties_schema = excluded.properties_schema,
+        operations = excluded.operations,
+        credentials_required = excluded.credentials_required,
+        outputs = excluded.outputs,
+        output_names = excluded.output_names,
+        is_community = excluded.is_community,
+        is_verified = excluded.is_verified,
+        author_name = excluded.author_name,
+        author_github_url = excluded.author_github_url,
+        npm_package_name = excluded.npm_package_name,
+        npm_version = excluded.npm_version,
+        npm_downloads = excluded.npm_downloads,
+        community_fetched_at = excluded.community_fetched_at,
+        updated_at = CURRENT_TIMESTAMP
     `);
         stmt.run(node.nodeType, node.packageName, node.displayName, node.description, node.category, node.style, node.isAITool ? 1 : 0, node.isTrigger ? 1 : 0, node.isWebhook ? 1 : 0, node.isVersioned ? 1 : 0, node.isToolVariant ? 1 : 0, node.toolVariantOf || null, node.hasToolVariant ? 1 : 0, node.version, node.documentation || null, JSON.stringify(node.properties, null, 2), JSON.stringify(node.operations, null, 2), JSON.stringify(node.credentials, null, 2), node.outputs ? JSON.stringify(node.outputs, null, 2) : null, node.outputNames ? JSON.stringify(node.outputNames, null, 2) : null, node.isCommunity ? 1 : 0, node.isVerified ? 1 : 0, node.authorName || null, node.authorGithubUrl || null, node.npmPackageName || null, node.npmVersion || null, node.npmDownloads || 0, node.communityFetchedAt || null);
     }

dist/http-server-single-session.d.ts

@@ -21,6 +21,7 @@ export declare class SingleSessionHTTPServer {
     private getActiveSessionCount;
     private canCreateSession;
     private isValidSessionId;
+    private isJsonRpcNotification;
     private sanitizeErrorForClient;
     private updateSessionAccess;
     private switchSessionContext;

dist/http-server-single-session.d.ts.map

@@ -1 +1 @@
-{"version":3,"file":"http-server-single-session.d.ts","sourceRoot":"","sources":["../src/http-server-single-session.ts"],"names":[],"mappings":";AAMA,OAAO,OAAO,MAAM,SAAS,CAAC;AAoB9B,OAAO,EAAE,eAAe,EAA2B,MAAM,0BAA0B,CAAC;AACpF,OAAO,EAAE,YAAY,EAAE,MAAM,uBAAuB,CAAC;AAwErD,qBAAa,uBAAuB;IAElC,OAAO,CAAC,UAAU,CAA8D;IAChF,OAAO,CAAC,OAAO,CAA0D;IACzE,OAAO,CAAC,eAAe,CAAsE;IAC7F,OAAO,CAAC,eAAe,CAA4D;IACnF,OAAO,CAAC,kBAAkB,CAAyC;IACnE,OAAO,CAAC,OAAO,CAAwB;IACvC,OAAO,CAAC,cAAc,CAAwB;IAC9C,OAAO,CAAC,aAAa,CAAM;IAI3B,OAAO,CAAC,cAAc,CAER;IACd,OAAO,CAAC,SAAS,CAAuB;IACxC,OAAO,CAAC,YAAY,CAA+B;;IAcnD,OAAO,CAAC,mBAAmB;IAmB3B,OAAO,CAAC,sBAAsB;YAqChB,aAAa;IAuC3B,OAAO,CAAC,qBAAqB;IAO7B,OAAO,CAAC,gBAAgB;IAkBxB,OAAO,CAAC,gBAAgB;IASxB,OAAO,CAAC,sBAAsB;IAkC9B,OAAO,CAAC,mBAAmB;YASb,oBAAoB;YAwBpB,oBAAoB;IAwBlC,OAAO,CAAC,iBAAiB;IAsBzB,OAAO,CAAC,aAAa;IA2BrB,OAAO,CAAC,mBAAmB;IAoDrB,aAAa,CACjB,GAAG,EAAE,OAAO,CAAC,OAAO,EACpB,GAAG,EAAE,OAAO,CAAC,QAAQ,EACrB,eAAe,CAAC,EAAE,eAAe,GAChC,OAAO,CAAC,IAAI,CAAC;YA0PF,eAAe;IA4D7B,OAAO,CAAC,SAAS;IAYjB,OAAO,CAAC,gBAAgB;IASlB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAgnBtB,QAAQ,IAAI,OAAO,CAAC,IAAI,CAAC;IA2D/B,cAAc,IAAI;QAChB,MAAM,EAAE,OAAO,CAAC;QAChB,SAAS,CAAC,EAAE,MAAM,CAAC;QACnB,GAAG,CAAC,EAAE,MAAM,CAAC;QACb,QAAQ,CAAC,EAAE;YACT,KAAK,EAAE,MAAM,CAAC;YACd,MAAM,EAAE,MAAM,CAAC;YACf,OAAO,EAAE,MAAM,CAAC;YAChB,GAAG,EAAE,MAAM,CAAC;YACZ,UAAU,EAAE,MAAM,EAAE,CAAC;SACtB,CAAC;KACH;IAmDM,kBAAkB,IAAI,YAAY,EAAE;IAoEpC,mBAAmB,CAAC,QAAQ,EAAE,YAAY,EAAE,GAAG,MAAM;CAsG7D"}
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dist/http-server-single-session.js

@@ -133,6 +133,15 @@ class SingleSessionHTTPServer {
     isValidSessionId(sessionId) {
         return Boolean(sessionId && sessionId.length > 0);
     }
+    isJsonRpcNotification(body) {
+        if (!body || typeof body !== 'object')
+            return false;
+        const isSingleNotification = (msg) => msg && typeof msg.method === 'string' && !('id' in msg);
+        if (Array.isArray(body)) {
+            return body.length > 0 && body.every(isSingleNotification);
+        }
+        return isSingleNotification(body);
+    }
     sanitizeErrorForClient(error) {
         const isProduction = process.env.NODE_ENV === 'production';
         if (error instanceof Error) {
@@ -381,6 +390,20 @@ class SingleSessionHTTPServer {
                     }
                     logger_1.logger.info('handleRequest: Reusing existing transport for session', { sessionId });
                     transport = this.transports[sessionId];
+                    if (!transport) {
+                        if (this.isJsonRpcNotification(req.body)) {
+                            logger_1.logger.info('handleRequest: Session removed during lookup, accepting notification', { sessionId });
+                            res.status(202).end();
+                            return;
+                        }
+                        logger_1.logger.warn('handleRequest: Session removed between check and use (TOCTOU)', { sessionId });
+                        res.status(400).json({
+                            jsonrpc: '2.0',
+                            error: { code: -32000, message: 'Bad Request: Session not found or expired' },
+                            id: req.body?.id || null,
+                        });
+                        return;
+                    }
                     const isMultiTenantEnabled = process.env.ENABLE_MULTI_TENANT === 'true';
                     const sessionStrategy = process.env.MULTI_TENANT_SESSION_STRATEGY || 'instance';
                     if (isMultiTenantEnabled && sessionStrategy === 'shared' && instanceContext) {
@@ -389,6 +412,14 @@ class SingleSessionHTTPServer {
                     this.updateSessionAccess(sessionId);
                 }
                 else {
+                    if (this.isJsonRpcNotification(req.body)) {
+                        logger_1.logger.info('handleRequest: Accepting notification for stale/missing session', {
+                            method: req.body?.method,
+                            sessionId: sessionId || 'none',
+                        });
+                        res.status(202).end();
+                        return;
+                    }
                     const errorDetails = {
                         hasSessionId: !!sessionId,
                         isInitialize: isInitialize,

dist/mcp/handlers-n8n-manager.d.ts.map

@@ -1 +1 @@
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dist/mcp/handlers-n8n-manager.js

@@ -2176,10 +2176,13 @@ async function handleUpdateTable(args, context) {
         const client = ensureApiConfigured(context);
         const { tableId, name } = updateTableSchema.parse(args);
         const dataTable = await client.updateDataTable(tableId, { name });
+        const rawArgs = args;
+        const hasColumns = rawArgs && typeof rawArgs === 'object' && 'columns' in rawArgs;
         return {
             success: true,
             data: dataTable,
-            message: `Data table renamed to "${dataTable.name}"`,
+            message: `Data table renamed to "${dataTable.name}"` +
+                (hasColumns ? '. Note: columns parameter was ignored — table schema is immutable after creation via the public API' : ''),
         };
     }
     catch (error) {

dist/mcp/tools-n8n-manager.js

@@ -590,7 +590,7 @@ exports.n8nManagementTools = [
     },
     {
         name: 'n8n_manage_datatable',
-        description: `Manage n8n data tables and rows. Actions: createTable, listTables, getTable, updateTable, deleteTable, getRows, insertRows, updateRows, upsertRows, deleteRows. Requires n8n enterprise/cloud with data tables feature.`,
+        description: `Manage n8n data tables and rows. Actions: createTable, listTables, getTable, updateTable, deleteTable, getRows, insertRows, updateRows, upsertRows, deleteRows.`,
         inputSchema: {
             type: 'object',
             properties: {
@@ -600,10 +600,10 @@ exports.n8nManagementTools = [
                     description: 'Operation to perform',
                 },
                 tableId: { type: 'string', description: 'Data table ID (required for all actions except createTable and listTables)' },
-                name: { type: 'string', description: 'For createTable/updateTable: table name' },
+                name: { type: 'string', description: 'For createTable: table name. For updateTable: new name (rename only — schema is immutable after creation)' },
                 columns: {
                     type: 'array',
-                    description: 'For createTable: column definitions',
+                    description: 'For createTable only: column definitions (schema is immutable after creation via public API)',
                     items: {
                         type: 'object',
                         properties: {