PM Skills is an extensive library featuring 849 professional agent skills designed for AI assistants like Claude, ChatGPT, and Codex. Each skill is presented in plain markdown format, enabling users to instruct their AI on various professional tasks, from writing a Product Requirement Document (PRD) to decoding complex leases. The library is free and open-source, adhering to the MIT license, making it accessible for anyone looking to enhance their AI's capabilities.

The skills are categorized into various bundles, including decoders, simulators, and calculators, catering to a wide range of professional needs. Users can leverage these skills to accomplish tasks such as salary negotiations, project planning, and even real-time data queries without needing API keys. The system is user-friendly, allowing for quick integration and execution, ensuring that professionals can maximize their productivity with the help of AI.