teacher-skills

Teacher Skills

A portable library of AI skills for teachers — curriculum design, personalized study plans, quizzes and assessments, and more. One repo, multiple platforms.

Each skill is a plain-markdown file (Agent Skill format). That single format works as a native Claude skill and as imported knowledge for a Gemini Gem — so the content lives in one place and each platform consumes it its own way.

Repository layout

teacher-skills/
├── .claude-plugin/
│   ├── marketplace.json              # what users "add" in Claude
│   └── plugin.json                   # the plugin manifest (repo is both)
├── skills/
│   └── quiz-generator/
│       └── SKILL.md                  # ← a skill (source of truth)
├── platforms/
│   └── gemini/
│       └── GEM_INSTRUCTIONS.md       # paste-in Gem setup
├── INDEX.md                          # catalog of all skills
└── README.md

Install

Claude (Desktop / web / Code)

Add this repo as a plugin marketplace, then install the teacher-skills plugin.

In Claude Code:

/plugin marketplace add <your-github-username>/teacher-skills
/plugin install teacher-skills

Skills then trigger automatically based on each skill's description.

Gemini (Gem)

Import this repo's URL into a Gem's Knowledge, then paste in the instructions. Full steps: platforms/gemini/GEM_INSTRUCTIONS.md.

Gemini takes a one-time snapshot at import — re-import the URL to pick up updates.

ChatGPT (Custom GPT)

ChatGPT has no GitHub import. Copy a skill's body into a Custom GPT's instructions, or upload skill files as knowledge, and use a similar "consult the relevant skill first" instruction.

Adding a new skill

1. Create skills/<skill-name>/SKILL.md.
2. Add YAML frontmatter with name and a strong description (this is what Claude uses to decide when to trigger the skill — make it specific about when to use it).
3. Write the body so it's self-contained markdown (role, when-to-use, process, templates, examples). Avoid depending on executable scripts if you want it to work in Gemini, which reads files as text and can't run code.
4. Add a row to INDEX.md.

Use quiz-generator as the template.

Platform differences at a glance

	Claude	Gemini Gem	ChatGPT GPT
Install	Add marketplace	Import repo URL as Knowledge	Manual upload
Skill triggering	Auto via description	Gem instruction consults skills	GPT instruction does the same
Updates	Reinstall / pull	Re-import URL	Re-upload
Runs bundled scripts	✅	❌	✅ (code interpreter)