jkm_dot_dev
Sadly, the anti-cheat is not something I'm too knowledgeable in. Half of the story is visible in the client: which data is tracked, and when (as well as some visual adjustments to defeat older colour-recognition bots such as SCAR) - as well as the data scrambling I mention in the article, though this was more likely meant to break all third-party clients and packet sniffers.
Knowing how Jagex used this data once they'd tracked it isn't something I have much of an idea about, though.
On the wink: I wrote this article by hand over a couple of weeks back in May; I used AI to provide wording review on some of the more technical sections, and to create the SVG diagrams from my specs.
Most of the knowledge came from my refactor of the #317 RS2 client (https://github.com/Jameskmonger/317refactor) though I looked at some other decompiled versions while writing this blog post.