The world's knowledge is in your AI.
The world's practice is not.
Most people don't know which practice applies — and AI won't enforce one unless guided. Grimoire closes both gaps.
500+ verified best practices across 26 domains — engineering, law, medicine, finance, and more. Works with every major AI assistant.
The Problem
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.
See It In Action
Ask your AI about a real problem. Grimoire surfaces the right expert standard and guides you through applying it.
Prompt: "I'm 42, AI just took my job, I have a mortgage. What do I do?"
Surfaced and applied — 4 practices:
How It Works
One command installs grimoire into every AI agent on your system. Claude Code, Cursor, Codex, Gemini CLI, OpenCode — all detect it automatically.
You don't have to know the right prompt. When you start any task, Grimoire silently checks for applicable best practices and applies or offers them proactively — before you even describe a problem.
You don't need to know which best practice applies. Just describe your problem — the AI finds the matching skill and routes through it automatically.
Your AI follows the same frameworks as top institutions — McKinsey, Google, WHO, ABA, NSCA — and produces actionable, verifiable, specific output. Not summaries. Steps.
Respects Your Choices
Already using a practice intentionally? Audit your existing work to detect what's applied. Pin preferences at the session, project, or global level — routing skills respect them and never suggest alternatives for pinned choices.
26 Domains
A McKinsey engagement costs $1M. A senior lawyer bills $800/hr. The practices they follow are not proprietary — they belong to everyone. Browse 500+ skills across every professional domain, free.
Universal
Install once. Every AI agent on your system picks it up automatically.
Installation
Pick your agent. Copy. Paste. Start using 500+ expert skills.
/plugin marketplace add jeffreytse/grimoire
Step 1: register the marketplace. Then run /plugin install grimoire@grimoire to install all 500+ skills.
curl -sSL https://raw.githubusercontent.com/jeffreytse/grimoire/main/scripts/install.sh | bash
Auto-detects Claude Code, Cursor, Codex, Gemini CLI, and OpenCode. Installs to all found agents.
./scripts/install.sh --domain engineering
Install one domain only. Replace engineering with any of the 26 available domains.
./scripts/install.sh --skill engineering/development/propose-commit
Install a single skill by path. Use the <domain>/<subdomain>/<skill-name> pattern.
Quality Standard
Every skill passes 4 gates before merge. No vague advice. No generic tips.
Reader can do it immediately. Steps, not descriptions. Commands, not concepts.
Adopted by top-tier institutions — Google, McKinsey, WHO, ABA, NSCA. Cited, auditable, third-party verified.
Names tools. Cites numbers. Shows exact commands. One skill, one concept. No overlap.
Encodes majority position among experts. No 50/50 debates. Stable, durable knowledge.
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.
Plain Markdown. Follow the template. Add your 10,000-hour steps.
Automated validation + human review. Proven, actionable, specific.
Merged to main. Available to every AI agent globally. Forever.