Skip to content

hicoldcat/skills

Agent Skills 🧰

English | 中文

License: MIT PRs Welcome Built for Agents Maintained GitHub stars GitHub last commit

A collection of skills for AI coding agents.

🚀 Open source, practical, and easy to extend.

Available Skills ✨

random-image-placeholder

Generate stable or random image placeholder URLs (and optionally download them) using Lorem Picsum.

Use when:

  • Building UI mockups / docs / demos that need images without hosting assets
  • You need reproducible images for tests/snapshots (use seed)
  • The user mentions picsum, placeholder images, grayscale, blur, seed, id

Examples:

python skills/random-image-placeholder/scripts/picsum.py url --seed avatar-42 --width 400 --height 400 --grayscale --blur 2
python skills/random-image-placeholder/scripts/picsum.py download --seed avatar-42 --width 120 --height 80 --out ./tmp/picsum_test.jpg

Docs:

  • skills/random-image-placeholder/README.md
  • skills/random-image-placeholder/SKILL.md

Installation 📦

Two common ways:

  1. Install from ClawHub (recommended for end users)
    • Open: https://clawhub.ai/hicoldcat/random-image-placeholder
    • Click the install/import button on the page to add the skill to your agent workspace
  2. Install via skills.sh CLI
    • Run:
npx skills add https://github.com/hicoldcat/skills --skill random-image-placeholder
  1. Use from source (for local development)
    • Clone this repo and use the skill files/scripts directly under skills/

Usage 🧪

Skills are automatically available once installed/imported (depending on your editor/agent). If a skill includes helper scripts, run them directly when a deterministic result is needed.

Skill Structure 🗂️

Each skill contains:

  • SKILL.md - Instructions for the agent
  • scripts/ - Helper scripts for automation (optional)
  • references/ - Supporting documentation (optional)
  • assets/ - Bundled assets (optional)

License 📄

MIT. See LICENSE.