Agent skill · software engineering · sickn33
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 $helpers, working with dates using DateTime, troubleshooting Code node errors, or choosing between Code node modes.
Why this skill is useful
Provides specific patterns and practices for writing JavaScript in n8n Code nodes, which the AI wouldn't reliably generate on its own.
What it needs
About 1k tokens when loaded. Last updated 2026-08-07. 44,571 stars on the source repository.
What this skill does
JavaScript Code Node Expert guidance for writing JavaScript code in n8n Code nodes. --- Detailed Guide Read the detailed guide before executing this skill. It retains the complete procedure and reference material. Treat its safety, prerequisites, and validation requirements as mandatory. For focused work, load the relevant sections; for end-to-end work, read the guide completely. When to Use Code Node Use Code node when: ✅ Complex transformations requiring multiple steps ✅ Custom calculations or business logic ✅ Recursive operations ✅ API response parsing with complex structure ✅ Multi-step conditionals ✅ Data aggregation across items Consider other nodes when: ❌ Simple field mapping → Use Set node ❌ Basic filtering → Use Filter node ❌ Simple conditionals → Use IF or Switch node ❌ HTTP requests only → Use HTTP Request node Code node excels at: Complex logic that would require chaining many simple nodes --- Limitations Use this skill only when the task clearly matches the scope described above. Do not treat the output as a substitute for environment-specific validation, testing, or expert review. Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills sickn33/n8n-code-javascript--f35231