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Updated 6mo ago

by crystian

skills

Open collection of AI agent skills — reusable, framework-agnostic SKILL.md packages for Claude Code and beyond. Install with npx skills add crystian/skills

Works with
  • Claude
View on GitHub (opens in a new tab)

24 GitHub stars (24)

Steady at 24 stars — no new stars in the 16 days since Sep 30.

  • 2 skills (2 skills found in its SKILL.md files)
  • 3 forks (3 forks)
  • 6mo ago last update (Last updated 6mo ago)

Install

Skills CLI

npx skills add crystian/skills

Asks which skills and agents to install. Just one: npx skills add crystian/skills --skill your-skill-name — add -g for every project.

Claude Code

git clone https://github.com/crystian/skillscp -r "skills/skills/_template" ~/.claude/skills/

Copies the your-skill-name skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add crystian/skills

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • your-skill-name

    Third-person description of what this skill does, when it should activate, and how to invoke it. Include concrete trigger phrases the agent can match against. Max 1024 characters. Example: "Reviews SQL migrations for destructive operations and suggests safer alternatives. Activates when the user asks to review a migration, or runs `/crystools-skills:your-skill-name`."

    skills/_template/SKILL.md on GitHub (opens in a new tab)

  • skill-optimizer

    Optimizer that refines and professionalizes AI agent skills through real usage — saves tokens, eliminates redundancy, and tightens instructions so skills cost less to run. Learns from mistakes, reviews quality, and improves over time. Observes skill execution in the current conversation, analyzes up to four sources (conversation friction, file diffs, user feedback, static diagnostic) plus accumul…

    skills/skill-optimizer/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.