Prompt Libraries

Open format described as a README for coding agents, supported by many tools and stewarded under the Linux Foundation.

Large open collection of .mdc project rules for frameworks, testing, security and documentation; copy a file into .cursor/rules/ to use it.

Community directory of Cursor rules and MCP-server plugins, ranked by what is trending.

Public examples of Agent Skills: folders of instructions that teach Claude a repeatable task.

Official guidance on writing clear, detailed prompts with examples and structure.

How project rules, user rules and AGENTS.md work in Cursor, with tips on keeping rules focused.

Copy-pasteable rule templates for common stacks and the mistakes that make rules fail.

Explains the .cursor/rules format and rule types, with 15 templates and rules for Supabase and Stripe.

Central repo of rule sets that mirrors the .cursor/rules structure so you can copy them straight into a project.

Another directory of Cursor rules, listed alongside Cursor Directory in the awesome-cursorrules repo.

Cursor rule templates and ready-to-use prompt templates for generic, project and personal rules.

Installable skill with guidance on MVP scope, pitfalls and choosing between Lovable, Cursor, Replit and Bolt.