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czlonkowski/n8n-mcp-tools-expert

Guia especializado para usar ferramentas MCP do n8n de forma eficaz. Use ao pesquisar nós, validar configurações, acessar templates, gerenciar workflows, gerenciar credenciais, auditar segurança da instância ou usar qualquer ferramenta n8n-mcp.

O que é n8n-mcp-tools-expert?

Este skill é um guia especializado para desenvolvedores e usuários que utilizam as ferramentas MCP do n8n (Model Context Protocol). Seu principal objetivo é evitar erros comuns ao chamar essas ferramentas, como formatos incorretos de `nodeType`, estruturas de parâmetros inválidas e uso ineficiente dos recursos. Ele fornece orientação sobre seleção de ferramentas, formatos de parâmetros e padrões de uso recomendados, garantindo uma integração mais suave e produtiva. O skill é compatível com qualquer assistente de IA que suporte MCP com ferramentas n8n, como Claude Code ou Cursor. Sempre consulte este skill antes de chamar qualquer ferramenta n8n-mcp — ele previne erros comuns e otimiza seu fluxo de trabalho com automação e integrações.

Funciona com~Claude Code~Codex CLI~Cursor
Part ofAgent Workflows
npx skills add https://github.com/czlonkowski/n8n-skills/tree/main/skills/n8n-mcp-tools-expert

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O que n8n-mcp-tools-expert faz?

Guia especializado para usar ferramentas MCP do n8n de forma eficaz. Use ao pesquisar nós, validar configurações, acessar templates, gerenciar workflows, gerenciar credenciais, auditar segurança da instância ou usar qualquer ferramenta n8n-mcp. Fornece orientação sobre seleção de ferramentas, formatos de parâmetros e padrões comuns. IMPORTANTE — Consulte sempre este skill antes de chamar qualquer ferramenta n8n-mcp — ele previne erros comuns como formatos incorretos de nodeType, estruturas de parâmetros inválidas e uso ineficiente de ferramentas. Se o usuário mencionar n8n, workflows, nós ou automação e você tiver ferramentas n8n MCP disponíveis, use este skill primeiro.

Individual skills in this repo

This repo contains 6 individual skills — each has its own dedicated page.

czlonkowski/n8n-code-javascript

Write JavaScript code in n8n Code nodes. Use when writing JavaScript in n8n, using $input/$json/$node syntax, making HTTP requests with this.helpers / the $helpers global, working with dates using DateTime, troubleshooting Code node errors, choosing between Code node modes, or doing any custom data transformation in n8n. Always use this skill when a workflow needs a Code node — whether for data aggregation, filtering, API calls, format conversion, batch processing logic, or any custom JavaScript. Covers SplitInBatches loop patterns, cross-iteration data, pairedItem, and real-world production patterns. Also use when asked why a Code node or workflow is slow, which execution mode is faster, or how to cut per-item overhead on large datasets. EXCEPTION — for the AI-agent-callable Custom Code Tool (@n8n/n8n-nodes-langchain.toolCode, a tool attached to an AI Agent), use the n8n-code-tool skill instead; it has a different runtime contract.

czlonkowski/n8n-code-python

Write Python code in n8n Code nodes. Use when writing Python in n8n, using _input/_json/_node syntax, working with standard library, or need to understand Python limitations in n8n Code nodes. Use this skill when the user specifically requests Python for an n8n Code node. Note — JavaScript is recommended for 95% of use cases — only use Python when the user explicitly prefers it or the task requires Python-specific standard library capabilities (regex, hashlib, statistics). EXCEPTION — for Python in the AI-agent-callable Custom Code Tool (@n8n/n8n-nodes-langchain.toolCode), use the n8n-code-tool skill instead (input is _query, return must be a string).

czlonkowski/n8n-expression-syntax

Validate n8n expression syntax and fix common errors. Use when writing n8n expressions, using {{}} syntax, accessing $json/$node variables, troubleshooting expression errors, mapping data between nodes, or referencing webhook data in workflows. Use this skill whenever configuring node fields that reference data from previous nodes — expressions are how n8n passes data between nodes, and getting the syntax wrong is the most common source of workflow errors. Also use when asked whether a complex expression hurts performance.

czlonkowski/n8n-node-configuration

Operation-aware node configuration guidance. Use when configuring nodes, understanding property dependencies, determining required fields, choosing between get_node detail levels, or learning common configuration patterns by node type. Always use this skill when setting up node parameters — it explains which fields are required for each operation, how displayOptions control field visibility, and when to use patchNodeField for surgical edits vs full node updates.

czlonkowski/n8n-validation-expert

Interpret validation errors and guide fixing them. Use when encountering validation errors, validation warnings, false positives, operator structure issues, or need help understanding validation results. Also use when asking about validation profiles, error types, the validation loop process, or auto-fix capabilities. Consult this skill whenever a validate_node or validate_workflow call returns errors or warnings — it knows which warnings are false positives and which errors need real fixes.

czlonkowski/n8n-workflow-patterns

Proven workflow architectural patterns from real n8n workflows. Use when building new workflows, designing workflow structure, choosing workflow patterns, planning workflow architecture, or asking about webhook processing, HTTP API integration, database operations, AI agent workflows, batch processing, or scheduled tasks. Always consult this skill when the user asks to create, build, or design an n8n workflow, automate a process, or connect services — even if they don't explicitly mention 'patterns'. Covers webhook, API, database, AI, batch processing, and scheduled automation architectures. Also use when optimizing a slow workflow or speeding up large-item-count processing (node count, batchSize, all-items vs per-item).

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