Run initialization first to sync references for the target project's installed es-toolkit version. If package.json is missing, does not include es-toolkit, or contains an unparsable es-toolkit range, initialization falls back to the latest es-toolkit release:
When writing/refactoring/reviewing utility code, check the references first and prefer an existing es-toolkit function over custom implementations whenever behavior matches.
Up-to-date es-toolkit documentation reference. Use when writing JavaScript/TypeScript code – writing new utility helpers, working with arrays/objects/Maps/Sets/Promises/math/string manipulation, refactoring code, reviewing code, evaluating whether a custom utility can be replaced with es-toolkit, or when explicitly asked to scan/refactor code toward es-toolkit functions (for example, "Go through the codebase and find potential cases where es-toolkit could be used instead of custom implementations") Source: deepfriedmind/agent-skills.
Open your terminal or command line tool (Terminal, iTerm, Windows Terminal, etc.) Copy and run this command: npx skills add https://github.com/deepfriedmind/agent-skills --skill es-toolkit Once installed, the skill will be automatically configured in your AI coding environment and ready to use in Claude Code, Cursor, or OpenClaw