n8n Code nodes let you write custom JavaScript to transform and process data inside your automation workflows. You can combine data from multiple items, make API calls, filter records, or calculate totals. The code runs either once for all items or once for each item. This skill helps you choose the right mode and write efficient code that follows n8n's rules.
Use $input to access your workflow data. Always return data in the format [{json: {...}}]. For simple requests use the built-in HTTP helper. For anything complex, use the dedicated HTTP Request node instead. If you are working on a Custom Code Tool for an AI Agent, switch to the n8n-code-tool skill.
Global
mkdir -p ~/.claude/skills/n8n-code-javascriptProject
mkdir -p .claude/skills/n8n-code-javascriptSource Repository
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