Rules & Prompts

Instruction files, rules and skills that tell AI agents how to work in your project. Each page explains what the tool does, who it's for and how to set it up, checked against the official docs.

• Anthropic

  Agent Skills (Anthropic)

  Anthropic's public repository of Agent Skills: folders with a SKILL.md file (plus optional scripts and resources) that Claude loads when a task needs them. It includes example skills, the document skills behind Claude's file creation, a skill template and a copy of the Agent Skills spec (the open standard lives at agentskills.io). Many skills are Apache-2.0; the document skills are source-available, not open source.

• Agentic AI Foundation (Linux Foundation)

  AGENTS.md

  A simple open format for giving coding agents project instructions: one AGENTS.md markdown file in your repo with setup commands, test steps and code style. It is now stewarded by the Agentic AI Foundation under the Linux Foundation, and the agents.md site lists many tools that read it, including Codex, Cursor, goose, OpenCode, Aider, Zed, Kilo Code and GitHub Copilot's coding agent. The site and repo are MIT licensed.

• Cursor

  Cursor Rules

  Cursor's rules feature gives the Agent persistent instructions. Project rules are .mdc files in .cursor/rules, and there are also User Rules, Team Rules and plain AGENTS.md files.