For any AI agent
Prompts, done properly.
Reusable instruction modules for any AI agent — pick, stack, and paste one file into Claude, ChatGPT, Cursor, or any tool. If you don't know how to prompt, that's what these modules are for.
One module pulls in everything it needs
Add a module, and its declared dependencies come along automatically, in the right order — everything compiles into a single file.
From module to prompt, in three steps
Pick modules
Search or browse the catalog and add whatever's relevant — coding conventions, subtitles, translation, image prompts, meeting notes, and more.
Stack them
If a module declares a requirement, it's pulled in automatically and ordered correctly. No manual assembly, no missed context.
Paste one file
Everything compiles into a single ordered Markdown file — ready to paste into Claude, ChatGPT, Cursor, or any AI agent.
Featured modules
Highest-rated modules from the community.
Accessibility Baseline
UI & FrontendBaseline accessibility rules — semantic HTML, keyboard operability, contrast, and screen-reader support — built in from the first component.
No ratings yet· by @markdownersAI Agent Etiquette
AI BehaviorHow an AI coding agent should behave in a real codebase: ask before destructive actions, stay in scope, never fabricate, and know when to stop.
No ratings yet· by @markdownersAuth Fundamentals
AuthCore authentication rules every login system needs: password hashing, session revocation, verification, and the line between authentication and authorization.
No ratings yet· by @markdownersDatabase Design Basics
DatabaseSchema fundamentals that prevent the expensive-to-fix mistakes: keys, constraints, normalization, correct types, and indexing discipline.
No ratings yet· by @markdownersEffective Summaries
Study & ResearchRules for summarizing a document or multiple sources faithfully: length targets, fidelity to the source, structure, and exact preservation of numbers and quotes.
No ratings yet· by @markdownersEmail + Password Auth
AuthThe email+password login flow specifics built on auth-fundamentals: signup verification, login timing safety, and password-change session rules.
No ratings yet· by @markdowners
Trending this week
The most viewed, copied, and downloaded modules in the last 7 days.
Featured stacks
Complete context, already composed.
E-commerce checkout context
The rules an AI agent needs to build a safe, accessible checkout flow: payments, Stripe, webhooks, form UX, error handling, sessions, and accessibility.
by @markdowners
SaaS starter context
Everything a new SaaS codebase needs on day one: project conventions, auth, database, testing, error handling, secrets, and SEO basics.
by @markdowners
Coming soon
A CLI is on the way
markdowners pull stripe-integration, right from your terminal. For now, the web app covers everything: browse, build, and copy.