redcanaryco/atomic-red-team ? reverse-engineered prompt

Build me a command-line tool for security teams to test their detection capabilities. The core of the project should be a big library of small, individual tests that are all mapped to the MITRE ATT&CK framework. For example, a security analyst should be able to look up a specific technique ID and find a simple, runnable test for it.

The main goal is to let people easily and safely simulate attacker behavior on their own systems—Windows, macOS, or Linux—to see if their security software catches it. The tool should let a user list the available tests and then execute a chosen one directly. It's not about a full-on attack, but about providing a simple, portable way to run very specific actions to validate security controls. Please make it open source and set it up so the community can easily contribute new "atomic tests".