n8n Node Builder

Build production-ready custom nodes for n8n using the official n8n-node CLI tool and n8n's best practices.

When You Need More Detail

This skill uses progressive disclosure. The SKILL.md covers the full workflow and decision-making. For complete code templates, read these reference files:

• references/declarative-node.md — Full declarative node template with routing, credentials, and codex file
• references/programmatic-node.md — Full programmatic node template with execute method, error handling, item linking, and trigger patterns
• references/credentials.md — All credential/auth patterns (API key, Bearer, OAuth2, Basic, Custom, testedBy)
• references/publishing.md — Linting, testing, releasing, and verification checklist
• references/common-mistakes.md — Error catalog with 36 numbered mistake patterns and fixes

Read the appropriate reference file before writing any code.

Workflow Overview

Building an n8n node follows this sequence: