Write and debug JavaScript code in n8n Code nodes with proper data access and return formatting.
Automate repetitive workflows and reduce manual effort
Example: Generate reports, summarize documents, draft communications
Save 3-5 hours per week on routine tasks
Learn new skills, understand complex topics, get expert guidance
Example: Explain concepts, provide examples, suggest learning resources
Accelerate learning and skill development by 2x
Enhance output quality through reviews, suggestions, and refinements
Example: Review drafts, suggest improvements, catch errors
Improve work quality by 30-40% with less effort
Time estimate: 15-45 minutes depending on use case complexity
Prerequisites
Submit your Claude Code skill and start earning
epx add czlonkowski/n8n-skills --skill n8n-code-javascriptCompatible with
Supported agents
Supports two execution modes: \"Run Once for All Items\" (recommended for 95% of use cases) and \"Run Once for Each Item\" for specialized per-item logic
Access data via $input.all() , $input.first() , or $input.item ; always return array format [{json: {...}}]
Built-in helpers include $helpers.httpRequest() for HTTP calls, DateTime (Luxon) for date operations, and $jmespath() for JSON qu
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionn8n-code-javascriptExecute the skills CLI command in your project's root directory to begin installation:
epx add czlonkowski/n8n-skills --skill n8n-code-javascriptFetches n8n-code-javascript from czlonkowski/n8n-skills and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
.cursor/skills/n8n-code-javascript
Restart Cursor to activate n8n-code-javascript. Access via /n8n-code-javascriptin your agent's command palette.
Learn more:View source on GitHubSkills CLI docsAbout CursorWhat are agent skills?
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
python-code-style
wshobson/agents · Backend · tag: code
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asyrafhussin/agent-skills · Productivity · tag: code
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shubhamsaboo/awesome-llm-apps · Productivity · tag: code
dead-code
parcadei/continuous-claude-v3 · Productivity · tag: code
code-simplifier
getsentry/skills · Productivity · tag: code
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anthropics/knowledge-work-plugins · Productivity · tag: code
Useful defaults in n8n-code-javascript — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
We added n8n-code-javascript from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
Registry listing for n8n-code-javascript matched our evaluation — installs cleanly and behaves as described in the markdown.
Registry listing for n8n-code-javascript matched our evaluation — installs cleanly and behaves as described in the markdown.
Keeps context tight: n8n-code-javascript is the kind of skill you can hand to a new teammate without a long onboarding doc.
Keeps context tight: n8n-code-javascript is the kind of skill you can hand to a new teammate without a long onboarding doc.
Keeps context tight: n8n-code-javascript is the kind of skill you can hand to a new teammate without a long onboarding doc.
Registry listing for n8n-code-javascript matched our evaluation — installs cleanly and behaves as described in the markdown.
I recommend n8n-code-javascript for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
n8n-code-javascript fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
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