n8n-code-javascript

92 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By czlonkowski/n8n-skills (GitHub) · coding · 6,620 stars · scanned at commit e037563

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 $…

Works with any agent that supports SKILL.md skills.

What this skill can do

Connects to the internet

This is disclosed by the author in the skill's SKILL.md or README.

Found in 1 place.

skills/n8n-code-javascript/SKILL.md, line 646. **Instance-allowlisted libraries**: Self-hosted instances can allowlist modules via `N8N_RUNNERS_ALLOWED_BUILT_IN_MODULES` and `N8N_RUNNERS_ALLOWED_EXTERNAL_

Runs commands on your computer

The author does not mention this. It runs automatically when the plugin is installed. Expected for a coding skill.

Found in 9 places.

hooks/hooks.json, line 9"command": "${CLAUDE_PLUGIN_ROOT}/hooks/session-start.sh"
hooks/hooks.json, line 20"command": "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use/get-node.sh"
hooks/hooks.json, line 29"command": "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use/create-workflow.sh"

Show 6 more

hooks/hooks.json, line 38"command": "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use/update-workflow.sh"
hooks/hooks.json, line 47"command": "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use/validate-workflow.sh"
hooks/hooks.json, line 56"command": "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use/test-workflow.sh"
hooks/hooks.json, line 65"command": "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use/instances.sh"
hooks/hooks.json, line 74"command": "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use/manage-credentials.sh"
hooks/hooks.json, line 85"command": "${CLAUDE_PLUGIN_ROOT}/hooks/post-tool-use/validate-workflow.sh"

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'n8n-code-javascript' ] || [ -L ~/.agents/skills/'n8n-code-javascript' ]; then echo 'A skill folder named n8n-code-javascript already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/czlonkowski/n8n-skills' "$d" && git -C "$d" checkout --quiet 'e037563e101749e630e6688d121d04529fe6ee7b' -- 'skills/n8n-code-javascript' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/n8n-code-javascript' ~/.agents/skills/'n8n-code-javascript' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'n8n-code-javascript' ~/.claude/skills/'n8n-code-javascript' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-08	`e037563`	92
2026-11-06	`e037563`	92