What is n8n-mcp CLAUDE.md?

A set of Claude Code instructions describing the n8n-mcp project, its structure, commands, architecture, and setup rules. n8n is a tool for building workflow automations.

Use it when developing, building, or setting up the n8n-mcp repository, especially when you need to understand its files and development commands.

It gives the coding agent project-specific guidance so it can work within the repository's existing structure and practices.

How lucas-denzer/n8n-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to lucas-denzer/n8n-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/lucas-denzer/n8n-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/lucas-denzer/n8n-mcp

Made for: Claude Code.

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README.md

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Per session 2,577 This file is loaded in full into every session.

When invoked 2,577 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 88% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.02577	$0.02577
Opus 5	$0.01288	$0.01288
Sonnet 5	$0.00515	$0.00515
Haiku 4.5	$0.00258	$0.00258

Measured 9d ago against content hash 796b7fdc66d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

n8n-mcp CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

88% identical to N8n-mcp CLAUDE.md — 36 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 209 lines

How it starts

The opening of the file, as written. The whole thing — 209 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Note: This file is committed to a public OSS repository. Never add sensitive information (API keys, internal URLs, credentials, private infrastructure details) here.

Project Overview

n8n-mcp is a comprehensive documentation and knowledge server that provides AI assistants with complete access to n8n node information through the Model Context Protocol (MCP). It serves as a bridge between n8n's workflow automation platform and AI models, enabling them to understand and work with n8n nodes effectively.

Current Architecture:

src/
├── loaders/
│   └── node-loader.ts         # NPM package loader for both packages
├── parsers/
│   ├── node-parser.ts         # Enhanced parser with version support
│   └── property-extractor.ts  # Dedicated property/operation extraction
├── mappers/
│   └── docs-mapper.ts         # Documentation mapping with fixes
├── database/
│   ├── schema.sql             # SQLite schema
│   ├── node-repository.ts     # Data access layer
│   └── database-adapter.ts    # Universal database adapter (NEW in v2.3)
├── services/
│   ├── property-filter.ts     # Filters properties to essentials (NEW in v2.4)
│   ├── example-generator.ts   # Generates working examples (NEW in v2.4)
│   ├── task-templates.ts      # Pre-configured node settings (NEW in v2.4)
│   ├── config-validator.ts    # Configuration validation (NEW in v2.4)
│   ├── enhanced-config-validator.ts # Operation-aware validation (NEW in v2.4.2)
│   ├── node-specific-validators.ts  # Node-specific validation logic (NEW in v2.4.2)
│   ├── property-dependencies.ts # Dependency analysis (NEW in v2.4)
│   ├── type-structure-service.ts # Type structure validation (NEW in v2.22.21)
│   ├── expression-validator.ts # n8n expression syntax validation (NEW in v2.5.0)
│   └── workflow-validator.ts  # Complete workflow validation (NEW in v2.5.0)
├── types/
│   ├── type-structures.ts      # Type structure definitions (NEW in v2.22.21)
│   ├── instance-context.ts     # Multi-tenant instance configuration
│   └── session-state.ts        # Session persistence types (NEW in v2.24.1)
├── constants/
│   └── type-structures.ts      # 22 complete type structures (NEW in v2.22.21)
├── templates/
│   ├── template-fetcher.ts    # Fetches templates from n8n.io API (NEW in v2.4.1)
│   ├── template-repository.ts # Template database operations (NEW in v2.4.1)
│   └── template-service.ts    # Template business logic (NEW in v2.4.1)
├── scripts/
│   ├── rebuild.ts             # Database rebuild with validation
│   ├── validate.ts            # Node validation (includes critical-node checks)
│   ├── test-essentials.ts     # Test new essentials tools (NEW in v2.4)
│   ├── test-enhanced-validation.ts # Test enhanced validation (NEW in v2.4.2)
│   ├── test-structure-validation.ts # Test type structure validation (NEW in v2.22.21)
│   ├── test-workflow-validation.ts # Test workflow validation (NEW in v2.5.0)
│   ├── test-ai-workflow-validation.ts # Test AI workflow validation (NEW in v2.5.1)
│   ├── test-mcp-tools.ts      # Test MCP tool enhancements (NEW in v2.5.1)
│   ├── test-n8n-validate-workflow.ts # Test n8n_validate_workflow tool (NEW in v2.6.3)
│   ├── test-typeversion-validation.ts # Test typeVersion validation (NEW in v2.6.1)
│   ├── test-workflow-diff.ts  # Test workflow diff engine (NEW in v2.7.0)
│   ├── test-tools-documentation.ts # Test tools documentation (NEW in v2.7.3)
│   ├── fetch-templates.ts     # Fetch workflow templates from n8n.io (NEW in v2.4.1)
│   └── test-templates.ts      # Test template functionality (NEW in v2.4.1)
├── mcp/
│   ├── server.ts              # MCP server with enhanced tools
│   ├── tools.ts               # Tool definitions including new essentials
│   ├── tools-documentation.ts # Tool documentation system (NEW in v2.7.3)
│   └── index.ts               # Main entry point with mode selection
├── utils/
│   ├── console-manager.ts     # Console output isolation (NEW in v2.3.1)
│   └── logger.ts              # Logging utility with HTTP awareness
├── http-server-single-session.ts  # Single-session HTTP server (NEW in v2.3.1)
│                                   # Session persistence API (NEW in v2.24.1)
├── mcp-engine.ts              # Clean API for service integration (NEW in v2.3.1)
│                                # Session persistence wrappers (NEW in v2.24.1)
└── index.ts                   # Library exports

Read the full file on GitHub · 209 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago First seen · 209 lines · 2,577 tokens per session scan A 796b7fdc66d0

Subscribe to this mod's changes

n8n-mcp CLAUDE.md is an instructions file published in the GitHub repository lucas-denzer/n8n-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 2,577 tokens to every session, about $0.0129 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to N8n-mcp CLAUDE.md, differing in 36 lines, and is treated as a copy.

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n8n-mcp: Instructions file for Claude Code