Been reading through the new book and I cant seem to find any actual game information on Muses.
Page 250 is where most of the information concerning them is but is not clear on anything specific.
there are some rules for ALIs, namely guidelines on what their aptitudes and skills range from but I assume you do not make them as normal characters; further more the paragraph introducing Muses on the same page indicates that they have more programing then normal ALIs.
On the next page on a subheading called "what your muse can do for you", it indicates that Muses can act as your PAN's system defender, but gives no statistics on that in this section, nor the section indicated (Page 260). it then explicitly states that the muse can assist in certain tasks (Im assuming at least Infosec going by the last sentence) but doesn't give any mechanical indication of what those tasks are.
Next is a list that indicates that Muses can make research tests to find information for you, but doesn't give any research skill rating.
There is a page reference for Sample ALIs (Page 326), this is a small paragraph which does give us their wound threshold, durability and death rating for mesh combat but only provides a brief sentence or 2 on each ALI and their Complexity/GP but no statistics or skill ratings.
Finally the other mention I have found is in Psycosurgery care where it states that muses possess the "Medicine:Psycosurgery" skill but doesn't give a rating.
Muses are in important asset for character and setting alike, in a softer system I would just assume that they are GM fiat for how they help, but my experience from 1e and what I've read of 2e it would seem that they should have more set mechanics.
If anyone has found anything else, or if I am just missing a page in the 400+ page book, let us know
I am what I am, Everything More, Nothing Less