Write JavaScript or Python for the n8n Custom Code Tool (@n8n/n8n-nodes-langchain.toolCode) — the AI-agent-callable tool, NOT the workflow Code node. Use when building a Code Tool attached to an AI Agent, writing code that an LLM will invoke, parsing the `query` input, returning a string result, defining an input schema for structured arguments (specifyInputSchema, jsonSchemaExample…
Install
npx skills add czlonkowski/n8n-skills --skill n8n-code-toolnpx skills add czlonkowski/n8n-skills --skill n8n-code-tool -a claude-code -gnpx skills add czlonkowski/n8n-skills --skill n8n-code-tool -a codex -ggemini skills install https://github.com/czlonkowski/n8n-skills.git --path skills/n8n-code-toolgh skill install czlonkowski/n8n-skills n8n-code-toolgit clone --depth 1 https://github.com/czlonkowski/n8n-skills /tmp/czlonkowski__n8n-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/czlonkowski__n8n-skills/skills/n8n-code-tool ~/.claude/skills/n8n-code-tool # Claude Code
cp -R /tmp/czlonkowski__n8n-skills/skills/n8n-code-tool ~/.agents/skills/n8n-code-tool # Codex, Cursor, Gemini CLI, Copilot, OpenCode