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chore: update n8n to 2.8.3 (#603)

Browse Source 
* chore: update n8n to 2.8.3 and bump version to 2.35.3

- Updated n8n from 2.6.3 to 2.8.3
- Updated n8n-core from 2.6.1 to 2.8.1
- Updated n8n-workflow from 2.6.0 to 2.8.0
- Updated @n8n/n8n-nodes-langchain from 2.6.2 to 2.8.1
- Fixed node loader to bypass restricted package.json exports in
  @n8n/n8n-nodes-langchain >=2.9.0 (resolves via absolute paths)
- Fixed community doc generator for cloud LLMs: added API key env var
  support, switched to max_completion_tokens, auto-omit temperature
- Rebuilt node database with 1,236 nodes (673 n8n-nodes-base,
  133 @n8n/n8n-nodes-langchain, 430 community)
- Refreshed community nodes (361 verified + 69 npm) with 424 AI summaries
- Updated README badge with new n8n version and node counts
- Updated CHANGELOG with dependency changes

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

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

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: update documentation-generator tests for max_completion_tokens

- Updated test assertions from max_tokens to max_completion_tokens
- Updated testConnection token limit expectation from 10 to 200
- Added temperature to test config to match new configurable behavior

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Romuald Członkowski
2026-02-20 02:15:15 +01:00
committed by GitHub
parent 6f695be482
commit 77048347b3
14 changed files with 9321 additions and 5329 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
CHANGELOG.md
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@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [Unreleased]
## [2.35.3] - 2026-02-19
### Changed
- **Updated n8n dependencies**: n8n 2.6.3 → 2.8.3, n8n-core 2.6.1 → 2.8.1, n8n-workflow 2.6.0 → 2.8.0, @n8n/n8n-nodes-langchain 2.6.2 → 2.8.1
- **Fixed node loader for langchain package**: Adapted node loader to bypass restricted package.json `exports` field in @n8n/n8n-nodes-langchain >=2.9.0, resolving node files via absolute paths instead of `require.resolve()`
- **Fixed community doc generation for cloud LLMs**: Added `N8N_MCP_LLM_API_KEY`/`OPENAI_API_KEY` env var support, switched to `max_completion_tokens`, and auto-omit `temperature` for cloud API endpoints
- Rebuilt node database with 1,236 nodes (673 from n8n-nodes-base, 133 from @n8n/n8n-nodes-langchain, 430 community)
- Refreshed community nodes (361 verified + 69 npm) with 424/430 AI documentation summaries
Conceived by Romuald Czlonkowski - https://www.aiadvisors.pl/en
## [2.35.2] - 2026-02-09
### Changed

23
MEMORY_N8N_UPDATE.md
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@@ -18,21 +18,27 @@ npm run update:n8n:check
# 4. Run update and skip tests (we'll test in CI)
yes y | npm run update:n8n
# 5. Create feature branch
# 5. Refresh community nodes (standard practice!)
npm run fetch:community
npm run generate:docs
# 6. Create feature branch
git checkout -b update/n8n-X.X.X
# 6. Update version in package.json (must be HIGHER than latest release!)
# 7. Update version in package.json (must be HIGHER than latest release!)
# Edit: "version": "2.XX.X" (not the version from the release list!)
# 7. Update CHANGELOG.md
# 8. Update CHANGELOG.md
# - Change version number to match package.json
# - Update date to today
# - Update dependency versions
# - Include community node refresh counts
# 8. Update README badge
# 9. Update README badge and node counts
# Edit line 8: Change n8n version badge to new n8n version
# Update total node count in description (core + community)
# 9. Commit and push
# 10. Commit and push
git add -A
git commit -m "chore: update n8n to X.X.X and bump version to 2.XX.X
@@ -41,7 +47,8 @@ git commit -m "chore: update n8n to X.X.X and bump version to 2.XX.X
- Updated n8n-workflow from X.X.X to X.X.X
- Updated @n8n/n8n-nodes-langchain from X.X.X to X.X.X
- Rebuilt node database with XXX nodes (XXX from n8n-nodes-base, XXX from @n8n/n8n-nodes-langchain)
- Updated README badge with new n8n version
- Refreshed community nodes (XXX verified + XXX npm)
- Updated README badge with new n8n version and node counts
- Updated CHANGELOG with dependency changes
Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en
@@ -52,10 +59,10 @@ Co-Authored-By: Claude <noreply@anthropic.com>"
git push -u origin update/n8n-X.X.X
# 10. Create PR
# 11. Create PR
gh pr create --title "chore: update n8n to X.X.X" --body "Updates n8n and all related dependencies to the latest versions..."
# 11. After PR is merged, verify release triggered
# 12. After PR is merged, verify release triggered
gh release list | head -1
# If the new version appears, you're done!
# If not, the version might have already been released - bump version again and create new PR

4
README.md
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@@ -5,11 +5,11 @@
[![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-3336%20passing-brightgreen.svg)](https://github.com/czlonkowski/n8n-mcp/actions)
[![n8n version](https://img.shields.io/badge/n8n-2.6.3-orange.svg)](https://github.com/n8n-io/n8n)
[![n8n version](https://img.shields.io/badge/n8n-2.8.3-orange.svg)](https://github.com/n8n-io/n8n)
[![Docker](https://img.shields.io/badge/docker-ghcr.io%2Fczlonkowski%2Fn8n--mcp-green.svg)](https://github.com/czlonkowski/n8n-mcp/pkgs/container/n8n-mcp)
[![Deploy on Railway](https://railway.com/button.svg)](https://railway.com/deploy/n8n-mcp?referralCode=n8n-mcp)
A Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Deploy in minutes to give Claude and other AI assistants deep knowledge about n8n's 1,084 workflow automation nodes (537 core + 547 community).
A Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Deploy in minutes to give Claude and other AI assistants deep knowledge about n8n's 1,236 workflow automation nodes (806 core + 430 community).
## Overview

BIN
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2
dist/loaders/node-loader.d.ts vendored
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@@ -6,6 +6,8 @@ export interface LoadedNode {
export declare class N8nNodeLoader {
private readonly CORE_PACKAGES;
loadAllNodes(): Promise<LoadedNode[]>;
private resolvePackageDir;
private loadNodeModule;
private loadPackageNodes;
}
//# sourceMappingURL=node-loader.d.ts.map

2
dist/loaders/node-loader.d.ts.map vendored
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@@ -1 +1 @@
{"version":3,"file":"node-loader.d.ts","sourceRoot":"","sources":["../../src/loaders/node-loader.ts"],"names":[],"mappings":"AAEA,MAAM,WAAW,UAAU;IACzB,WAAW,EAAE,MAAM,CAAC;IACpB,QAAQ,EAAE,MAAM,CAAC;IACjB,SAAS,EAAE,GAAG,CAAC;CAChB;AAED,qBAAa,aAAa;IACxB,OAAO,CAAC,QAAQ,CAAC,aAAa,CAG5B;IAEI,YAAY,IAAI,OAAO,CAAC,UAAU,EAAE,CAAC;YAmB7B,gBAAgB;CAqD/B"}
{"version":3,"file":"node-loader.d.ts","sourceRoot":"","sources":["../../src/loaders/node-loader.ts"],"names":[],"mappings":"AAEA,MAAM,WAAW,UAAU;IACzB,WAAW,EAAE,MAAM,CAAC;IACpB,QAAQ,EAAE,MAAM,CAAC;IACjB,SAAS,EAAE,GAAG,CAAC;CAChB;AAED,qBAAa,aAAa;IACxB,OAAO,CAAC,QAAQ,CAAC,aAAa,CAG5B;IAEI,YAAY,IAAI,OAAO,CAAC,UAAU,EAAE,CAAC;IAuB3C,OAAO,CAAC,iBAAiB;IAUzB,OAAO,CAAC,cAAc;YAIR,gBAAgB;CAuD/B"}

16
dist/loaders/node-loader.js vendored
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@@ -28,15 +28,23 @@ class N8nNodeLoader {
}
return results;
}
resolvePackageDir(packagePath) {
const pkgJsonPath = require.resolve(`${packagePath}/package.json`);
return path_1.default.dirname(pkgJsonPath);
}
loadNodeModule(absolutePath) {
return require(absolutePath);
}
async loadPackageNodes(packageName, packagePath, packageJson) {
const n8nConfig = packageJson.n8n || {};
const nodes = [];
const packageDir = this.resolvePackageDir(packagePath);
const nodesList = n8nConfig.nodes || [];
if (Array.isArray(nodesList)) {
for (const nodePath of nodesList) {
try {
const fullPath = require.resolve(`${packagePath}/${nodePath}`);
const nodeModule = require(fullPath);
const fullPath = path_1.default.join(packageDir, nodePath);
const nodeModule = this.loadNodeModule(fullPath);
const nodeNameMatch = nodePath.match(/\/([^\/]+)\.node\.(js|ts)$/);
const nodeName = nodeNameMatch ? nodeNameMatch[1] : path_1.default.basename(nodePath, '.node.js');
const NodeClass = nodeModule.default || nodeModule[nodeName] || Object.values(nodeModule)[0];
@@ -56,8 +64,8 @@ class N8nNodeLoader {
else {
for (const [nodeName, nodePath] of Object.entries(nodesList)) {
try {
const fullPath = require.resolve(`${packagePath}/${nodePath}`);
const nodeModule = require(fullPath);
const fullPath = path_1.default.join(packageDir, nodePath);
const nodeModule = this.loadNodeModule(fullPath);
const NodeClass = nodeModule.default || nodeModule[nodeName] || Object.values(nodeModule)[0];
if (NodeClass) {
nodes.push({ packageName, nodeName, NodeClass });

2
dist/loaders/node-loader.js.map vendored
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@@ -1 +1 @@
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14513
package-lock.json generated
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10
package.json
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@@ -1,6 +1,6 @@
{
"name": "n8n-mcp",
"version": "2.35.2",
"version": "2.35.3",
"description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
"main": "dist/index.js",
"types": "dist/index.d.ts",
@@ -153,16 +153,16 @@
},
"dependencies": {
"@modelcontextprotocol/sdk": "1.20.1",
"@n8n/n8n-nodes-langchain": "^2.6.2",
"@n8n/n8n-nodes-langchain": "^2.8.1",
"@supabase/supabase-js": "^2.57.4",
"dotenv": "^16.5.0",
"express": "^5.1.0",
"express-rate-limit": "^7.1.5",
"form-data": "^4.0.5",
"lru-cache": "^11.2.1",
"n8n": "^2.6.3",
"n8n-core": "^2.6.1",
"n8n-workflow": "^2.6.0",
"n8n": "^2.8.3",
"n8n-core": "^2.8.1",
"n8n-workflow": "^2.8.0",
"openai": "^4.77.0",
"sql.js": "^1.13.0",
"tslib": "^2.6.2",

17
src/community/documentation-generator.ts
View File

@@ -57,12 +57,14 @@ export interface DocumentationGeneratorConfig {
timeout?: number;
/** Max tokens for response (default: 2000) */
maxTokens?: number;
/** Temperature for generation (default: 0.3, set to undefined to omit) */
temperature?: number;
}
/**
* Default configuration
*/
const DEFAULT_CONFIG: Required<Omit<DocumentationGeneratorConfig, 'baseUrl'>> = {
const DEFAULT_CONFIG: Required<Omit<DocumentationGeneratorConfig, 'baseUrl' | 'temperature'>> = {
model: 'qwen3-4b-thinking-2507',
apiKey: 'not-needed',
timeout: 60000,
@@ -78,6 +80,7 @@ export class DocumentationGenerator {
private model: string;
private maxTokens: number;
private timeout: number;
private temperature?: number;
constructor(config: DocumentationGeneratorConfig) {
const fullConfig = { ...DEFAULT_CONFIG, ...config };
@@ -90,6 +93,7 @@ export class DocumentationGenerator {
this.model = fullConfig.model;
this.maxTokens = fullConfig.maxTokens;
this.timeout = fullConfig.timeout;
this.temperature = fullConfig.temperature;
}
/**
@@ -101,8 +105,8 @@ export class DocumentationGenerator {
const completion = await this.client.chat.completions.create({
model: this.model,
max_tokens: this.maxTokens,
temperature: 0.3, // Lower temperature for more consistent output
max_completion_tokens: this.maxTokens,
...(this.temperature !== undefined ? { temperature: this.temperature } : {}),
messages: [
{
role: 'system',
@@ -321,7 +325,7 @@ Guidelines:
try {
const completion = await this.client.chat.completions.create({
model: this.model,
max_tokens: 10,
max_completion_tokens: 200,
messages: [
{
role: 'user',
@@ -353,10 +357,15 @@ export function createDocumentationGenerator(): DocumentationGenerator {
const baseUrl = process.env.N8N_MCP_LLM_BASE_URL || 'http://localhost:1234/v1';
const model = process.env.N8N_MCP_LLM_MODEL || 'qwen3-4b-thinking-2507';
const timeout = parseInt(process.env.N8N_MCP_LLM_TIMEOUT || '60000', 10);
const apiKey = process.env.N8N_MCP_LLM_API_KEY || process.env.OPENAI_API_KEY;
// Only set temperature for local LLM servers; cloud APIs like OpenAI may not support custom values
const isLocalServer = !baseUrl.includes('openai.com') && !baseUrl.includes('anthropic.com');
return new DocumentationGenerator({
baseUrl,
model,
timeout,
...(apiKey ? { apiKey } : {}),
...(isLocalServer ? { temperature: 0.3 } : {}),
});
}

28
src/loaders/node-loader.ts
View File

@@ -31,9 +31,28 @@ export class N8nNodeLoader {
return results;
}
/**
* Resolve the absolute directory of an installed package.
* Uses require.resolve on package.json (always exported) and strips the filename.
*/
private resolvePackageDir(packagePath: string): string {
const pkgJsonPath = require.resolve(`${packagePath}/package.json`);
return path.dirname(pkgJsonPath);
}
/**
* Load a node module by absolute file path, bypassing package.json "exports".
* Some packages (e.g. @n8n/n8n-nodes-langchain >=2.9) restrict exports but
* still list node files in the n8n.nodes array — we need direct filesystem access.
*/
private loadNodeModule(absolutePath: string): any {
return require(absolutePath);
}
private async loadPackageNodes(packageName: string, packagePath: string, packageJson: any): Promise<LoadedNode[]> {
const n8nConfig = packageJson.n8n || {};
const nodes: LoadedNode[] = [];
const packageDir = this.resolvePackageDir(packagePath);
// Check if nodes is an array or object
const nodesList = n8nConfig.nodes || [];
@@ -42,8 +61,9 @@ export class N8nNodeLoader {
// Handle array format (n8n-nodes-base uses this)
for (const nodePath of nodesList) {
try {
const fullPath = require.resolve(`${packagePath}/${nodePath}`);
const nodeModule = require(fullPath);
// Resolve absolute path directly to bypass package exports restrictions
const fullPath = path.join(packageDir, nodePath);
const nodeModule = this.loadNodeModule(fullPath);
// Extract node name from path (e.g., "dist/nodes/Slack/Slack.node.js" -> "Slack")
const nodeNameMatch = nodePath.match(/\/([^\/]+)\.node\.(js|ts)$/);
@@ -65,8 +85,8 @@ export class N8nNodeLoader {
// Handle object format (for other packages)
for (const [nodeName, nodePath] of Object.entries(nodesList)) {
try {
const fullPath = require.resolve(`${packagePath}/${nodePath as string}`);
const nodeModule = require(fullPath);
const fullPath = path.join(packageDir, nodePath as string);
const nodeModule = this.loadNodeModule(fullPath);
// Handle default export and various export patterns
const NodeClass = nodeModule.default || nodeModule[nodeName] || Object.values(nodeModule)[0];

2
src/scripts/generate-community-docs.ts
View File

@@ -11,6 +11,7 @@
* Environment variables:
* N8N_MCP_LLM_BASE_URL - LLM server URL (default: http://localhost:1234/v1)
* N8N_MCP_LLM_MODEL - LLM model name (default: qwen3-4b-thinking-2507)
* N8N_MCP_LLM_API_KEY - LLM API key (falls back to OPENAI_API_KEY; default: 'not-needed')
* N8N_MCP_LLM_TIMEOUT - Request timeout in ms (default: 60000)
* N8N_MCP_DB_PATH - Database path (default: ./data/nodes.db)
*/
@@ -81,6 +82,7 @@ Options:
Environment Variables:
N8N_MCP_LLM_BASE_URL LLM server URL (default: http://localhost:1234/v1)
N8N_MCP_LLM_MODEL LLM model name (default: qwen3-4b-thinking-2507)
N8N_MCP_LLM_API_KEY LLM API key (falls back to OPENAI_API_KEY; default: 'not-needed')
N8N_MCP_LLM_TIMEOUT Request timeout in ms (default: 60000)
N8N_MCP_DB_PATH Database path (default: ./data/nodes.db)

5
tests/unit/community/documentation-generator.test.ts
View File

@@ -41,6 +41,7 @@ describe('DocumentationGenerator', () => {
apiKey: 'test-key',
timeout: 30000,
maxTokens: 1000,
temperature: 0.3,
};
const validSummary = {
@@ -163,7 +164,7 @@ describe('DocumentationGenerator', () => {
expect(mockCreate).toHaveBeenCalledWith({
model: 'test-model',
max_tokens: 1000,
max_completion_tokens: 1000,
temperature: 0.3,
messages: expect.arrayContaining([
expect.objectContaining({ role: 'system' }),
@@ -680,7 +681,7 @@ describe('DocumentationGenerator', () => {
expect(mockCreate).toHaveBeenCalledWith(
expect.objectContaining({
max_tokens: 10,
max_completion_tokens: 200,
messages: [
{
role: 'user',