xillwillx/skiptracer ? reverse-engineered prompt

Build me a Python OSINT web scraping tool that can search public sources for a person, username, email, domain, or other basic identifier and collect anything useful it finds into one place.

I want it to feel like a practical investigator’s helper, something I can run locally, give a target, and get back organized results with links, snippets, and any related accounts or records it can discover. Please include a simple way to save findings, reuse them later, and keep the code easy to extend with new sources. If it helps, set it up so it can run from the command line and also be packaged cleanly for local use or Docker.

Please make it work with Python 3, use a sensible project structure, and include a few basic tests or example usage. If you need current details for APIs or libraries, look them up online first.