Grimoire

Expert Skills
for Your AI

The world's knowledge is in your AI.
The world's practice is not.

505 verified best practices across 26 domains — engineering, law, medicine, finance, and more. Works with every major AI assistant.

$ /plugins add github:jeffreytse/grimoire
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Skills
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Domains
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AI Platforms
MIT
License

The Problem

Your AI knows everything.
Knowing and doing are different.

McKinsey charges $1M for frameworks your AI already has access to. A lawyer charges $800/hour for contracts. A doctor charges $300 for advice rooted in evidence your AI can find. Grimoire encodes the expert's playbook — the 10,000-hour practitioner's exact steps — and makes it available to everyone.

Without Grimoire
  • "Write a business strategy" → generic advice
  • "Review my contract" → vague suggestions
  • "Debug my architecture" → surface observations
  • "Plan my workout" → generic fitness tips
With Grimoire
  • Routes through McKinsey 7S + MECE + BCG matrix
  • Applies ABA clause analysis + negotiation playbook
  • Follows Google SRE runbooks + C4 model review
  • Applies NSCA periodization + RPE protocols

See It In Action

One question. Four expert frameworks.

Ask your AI about a real problem. Grimoire routes it through the right skills automatically.

Grimoire demo — AI routing through expert skills

Prompt: "I'm 42, AI just took my job, I have a mortgage. What do I do?"

Auto-routed through 4 skills:

apply-first-principles calculate-fire-number design-pricing-strategy write-value-proposition

How It Works

From zero to expert in 3 steps

1

Install once, everywhere

One command installs grimoire into every AI agent on your system. Claude Code, Cursor, Codex, Gemini CLI, OpenCode — all detect it automatically.

2

Ask your AI naturally

No special syntax. No commands to memorize. Just describe your problem. The AI finds the matching skill and routes through it automatically.

3

Get expert-grade output

Your AI follows the same frameworks as top institutions — McKinsey, Google, WHO, ABA, NSCA — and produces actionable, verifiable, specific output. Not summaries. Steps.

26 Domains

Every field. Every expert.

Browse 505 skills across every professional domain. Each skill is proven, actionable, and sourced from top-tier institutions.

Universal

Works with every AI assistant

Install once. Every AI agent on your system picks it up automatically.

🤖
Claude Code
Anthropic
⌨️
Cursor
AI Editor
💻
Codex
OpenAI
🔷
Gemini CLI
Google
🔵
OpenCode
Community

Installation

One command. Done.

Pick your agent. Copy. Paste. Start using 505 expert skills.

/plugins add github:jeffreytse/grimoire

Run inside Claude Code. Installs all 505 skills from the official plugin registry.

Quality Standard

What makes a grimoire skill

Every skill passes 4 gates before merge. No vague advice. No generic tips.

Actionable

Reader can do it immediately. Steps, not descriptions. Commands, not concepts.

🏛️

Proven

Adopted by top-tier institutions — Google, McKinsey, WHO, ABA, NSCA. Cited, auditable, third-party verified.

🎯

Specific

Names tools. Cites numbers. Shows exact commands. One skill, one concept. No overlap.

🤝

Consensus

Encodes majority position among experts. No 50/50 debates. Stable, durable knowledge.

Open to everyone with mastery

You don't need to be a developer.

Any expert with 10,000 hours of practice can contribute a skill — a doctor, a chef, a lawyer, a coach, a musician. If you know the playbook, encode it.

Write the skill

Plain Markdown. Follow the template. Add your 10,000-hour steps.

Pass quality review

Automated validation + human review. Proven, actionable, specific.

Ship to everyone

Merged to main. Available to every AI agent globally. Forever.

Contribute a Skill