n8n-code-javascript
An AI agent skill from czlonkowski/n8n-skills, scored 79 out of 100 by code.
Code score by group
It loses the most points in Scripts (6), the group that checks whether scripts are called from the steps and fail with a clear error.
What the author says it does
Write, review, or debug JavaScript in an n8n Code node. Use when a Code node is already in the workflow (editing it, fixing an error, choosing its mode, making it faster), or when a new one is justified: no native node fits (check the job-to-node table in using-n8n-mcp-skills first) and the job is on the closed list — loops or recursion no node expresses, state across runs, parsing no node handles, an allowlisted library, heavy all-items work, or one short node replacing 4+ glue nodes. Covers $input/$json/$node in code, this.helpers, Luxon, SplitInBatches loops, cross-iteration data, pairedIt…
This is the description in the skill's own SKILL.md, written by its author, not by SkillCheatSheet.
- Repository
- czlonkowski/n8n-skills
- Folder
- skills/n8n-code-javascript
- License
- MIT
- GitHub stars
- 6,634
- SKILL.md lines
- 429
- Other files
- 5
Add n8n-code-javascript to your agent
npx skills add czlonkowski/n8n-skills --skill n8n-code-javascript
The command uses the open skills CLI. A skill is instructions and scripts your agent will follow, so read it first: open the folder on GitHub at the commit that was scored.
Labelled for
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Scores come from a snapshot of 300 public GitHub repositories taken on 12 November 2026. Every score is the result of fixed checks run by code; no AI is involved. How scoring works.