Javascript Mastery

comeonoliver/javascript-mastery

Comprehensive JavaScript reference covering 33+ essential concepts every developer should know. From fundamentals like primitives and closures to advanced patterns like async/await and functional programming. Use when explaining JS concepts, debugging JavaScript issues, or teaching JavaScript fundamentals.

5k tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/ComeOnOliver/skillshub --skill javascript-mastery

Repackaged in 2 other repositories

same content, different owner

agent-skills-hub/agent-skills-hub open on GitHub →

aiskillstore/marketplace open on GitHub →

How to use it

Copy the folder

Take comeonoliver/javascript-mastery from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.