When reading RPG rules text, I have noticed that the text sometimes rather inconsistently switches between assuming that the player is doing the reading and that the character is doing the reading.
For an example from D&D 3.5, here is a clause that clearly applies to the character as seen by the player:
A psychic warrior begins play with the ability to learn 1st-level powers.
Then, when we look at an individual power description, which seems to assume that the character is doing the reading:
You call forth the aggressive nature of the beast inherent in yourself, psionically transforming your hands into deadly claws.
And then there are clauses that address the player but refer to the character:
A psychic warrior begins play knowing one psychic warrior power of your choice.
In other words, the "you" in the text seems to apply to different people at different times. I am willing to assume that these particular examples are just inconsistencies stemming from the D&D 3.5 designers, but they got me wondering about how this should be done.
My question is: Does there exist applicable literature, design guidelines or community consensus on who should be addressed when writing RPG rules in the English language? If not, what is preferable and why?