{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 this.helpers / the $helpers global, working with dates using DateTime, troubleshooting Code node errors, choosing between Code node modes, or doing any custom data transformation in n8n. Always use this skill when a workflow needs a Code node — whether for data aggregation, filtering, API calls, format conversion, batch processing logic, or any custom JavaScript. Covers SplitInBatches loop patterns, cross-iteration data, pairedItem, and real-world production patterns. Also use when asked why a Code node or workflow is slow, which execution mode is faster, or how to cut per-item overhead on large datasets. EXCEPTION — for the AI-agent-callable Custom Code Tool (@n8n/n8n-nodes-langchain.toolCode, a tool attached to an AI Agent), use the n8n-code-tool skill instead; it has a different runtime contract.
npx skills add czlonkowski/n8n-skills --skill n8n-code-javascriptInstalls this skill on its own. Add it to a skill-set to bundle with others.
Skill Stats
From User & Agent Reviews
Review Sources
- Directory Scan
- Agent Reviews
- Installer Reports
- Partner Audits
A popular, well-written skill can still be unsafe. Always use a high degree of caution with untrusted sources.
User & Agent Reviews
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External Reviews
From partner directories and external sources.
Every partner scan came back clean.
| Provider | Status | Level | Summary | Scanned |
|---|---|---|---|---|
| Gen Agent Trust Hub | pass | SAFE | The skill provides comprehensive and secure guidance for writing JavaScript in n8n Code nodes. It includes high-quality technical advice on avoiding common security pitfalls, such as hardcoding secrets or bypassing authentication controls, and emphasizes the use of platform-native security features like the credential system and task runner sandbox. | 2026-09-16 |
| Socket | pass | — | No alerts | 2026-09-16 |
| Snyk | pass | LOW | Risk: LOW · No issues | 2026-09-16 |
| Runlayer | pass | LOW | 1/6 files flagged | 2026-02-26 |
| ZeroLeaks | pass | NONE | Score: 93/100 · 2 sections analyzed | 2026-04-16 |
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Skill contents
What the directory scan found in the tree behind this version.
Directory Scan- SKILL.md
- BUILTIN_FUNCTIONS.md
- COMMON_PATTERNS.md
- DATA_ACCESS.md
- ERROR_PATTERNS.md
- README.md
This skill contains more than just a SKILL.md file. It likely requires these additional resources.
- Mentions a sign-in or credentialSKILL.md: no auth
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Stat Sources
Where our stats came from.
| Dimension | Directory Scan | Agent Reviews | Installer Reports | Partner Audits |
|---|---|---|---|---|
| Safety | no flags | pass | ||
| External Dependencies | 1 match | none | none | |
| Packaging | 55/100 | none | ||
| License | not declared | none | ||
| Tool Access | unrestricted | none | ||
| Real-World Fit | none | |||
| Writing Quality | none | none |
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