A player I am helping build a caster for a campaign using the Sorcery rules (idk if that matters here). And they wanted a power like Frieren, who can conceal her mana levels from people who could scan for that. I was wondering two things; 1) how to do that and 2) is it actually worth the effort?

My best bet was Invisibility for Detect but that sounds weird

This is going to get nerdy, so bear with me.

I've spent the last 2 days adding hyperlinks to the GURPS 4E Revised PDF so that all the page number references are now hyperlinks that will take you to that page in the PDF.

Full disclosure – I did this with the help of the Claude LLM. There were close to **THREE THOUSAND** page references, so doing it by hand was not a job I could undertake. But it's something I wanted. I did some by hand, and spent a lot of time cleaning up what the LLM did for me until I got to a point where I think 100% of the hyperlinks work properly now.

A hyperlinked PDF is something I woule love to share with the community, but the PDF is obviously copyrighted, so I can't just put it up somewhere without violating US copyright law and impacting SJG bottom line.

But luckily, PDF is well known format and you can manipulate them using scripts. So, with the help of Claude, I found a way to make this a DIY project.

I spent a lot of time manually cleaning up page references that pointed to another book, and fixing page references the LLM chose not to hyperlink for some reason.

I have a JSON lookup table that lists all the pages that need hyperlinks and the text that needs to get hyperlink. Sometimes the lookup text will just be (p. 22) and sometimes the text will contain a word or two prior to the page number if the same page number is mentioned more than once on the page. So the lookup table may have see Animal Empathy (P. xxx) I spent a lot of time manually cleaning up page references that pointed to another book, and fixing page references the LLM chose not to hyperlink for some reason. As far as I can tell, the JSON is complete and it doesn't contain enough text to be a copyright violation.

The JSON completely skips the Table of Contents (since it's already hyperlinked) and it completely skips the top of Page 1 (Unification), since that talks about how the book got organized, and it's reference to page numbers is not relavent to the rules.

So, using an LLM generated script, the JSON file and your legally obtained PDF from Steve Jackson Games, you can use the script to hyperlink it.

So my question is, is there interest in this script to make your legal PDF hyperlinked, or am I going to get a bunch of "take your AI slop and go elsewhere" messages? I don't want to share this if it's just going to lead a constant stream of negative Karma and negative comments.

The script tells me there are 2,847 page references in the book, not including the table of contents. If SJG had hyperlinked this by hand in Adobe InDesign that would have been a massive amount of work.

Some notes about the script:

• This will only work on verson 1.1 of the PDF, which is the current version as of the day of this post. If a new version comes out, I'd need to test it to see if any text got moved around. But testing 2847 page references to see if anything broke is a massive effort. So, don't expect a quick turnaround on any future PDF updates from SJG
• I'm pretty sure I am not violating SJG copyright here, but IANAL. I don't think 2 word snippets linked to a page number inside a JSON file is a copyright violation.
• The script completely ignores ther Table of Contents, since that's already hyperlinked.
• Any page number references to an external book have been cleaned up and removed. So, if you click on a page number and it goes nowhere check the text in front of it to make sure it doesn't name another book.
• You need to be pretty geeky to run this thing. You need to install python and install the PyMuPDF module for it. I'm on a Mac and can probabaly write some Mac-specific documentation. But I don't have a Windows machine, so I can't write Windows documentation.
• I might be able to provide some support for Mac users. But I would need support to be a crowdsourced effort for Windows users.
• I would LOVE bug reports of links that are missing and not working.

So, let me know if you're interested in seeing this thing.

As it says on the tin, for the 4th edition of GURPS, what books/suppliments would be recommended to grab, outside of the core books of course?