Opus 4.7 Prompt Guidance Guide, anyone tried this?

Yesterday I ran into this thing:

https://gist.github.com/subourbonite/22113b538602832a68a41a623fdeea76#file-opus-4-7_compatible_prompt_guide-md

It's an alleged prompt guidance guide for AI agents to understand how Opus 4.7 thinks and what are the best practices to getting it to actually listen to you. It's a pretty long read, although it's supposed to be for LLMs.

I was super skeptical at first and dismissed it as snake-oil-sounding, vibecode-bro content, but my personal experience and what I've read around Reddit do confirm that Opus 4.7 is SUPER literal and doesn't infer meaning, wishes, or pushes back as much, unless you use xhigh or max effort.

Given those constraints, actually knowing HOW to prompt it or what your skills should look like is definitely a good idea (and maybe just being clearer in your prompts helps any model, really).

Has anyone here seen this before or tried it? I spun up a 4.6 xhigh instance to read the guide and write a report with all the concerns it sees when applying these "best practices" to the prose parts of a plugin I'm building, and I'm testing if 4.7 compliance increases (srsly, not even hooks and injected content are enough sometimes).

And more importantly WHERE and HOW did this person create this? I don't see any sources and his repo is otherwise empty.

I was thinking, if I was to make a guide like this, I'd probably point an agent to system prompt leaks for 4.7 CC (if they're different) and start from there? Like, if the system prompt says "Never assume what the user wants, always follow instructions strictly and don't diverge from them," then I guess you could turn it into a best-practices guide like this and have your own prompt guidance?

Also, sorry for the train-of-thought mess of a post. You're right to push back, etc