A game development team is usually composed of some very talented professionals. Creating documentation that doesn't leave any space for these people to express themselves through their work most certainly means that the team's potential will remain unexpressed.
This means that if you're writing about game characters, for example, you should limit your work to what is needed from a designer. Details such as how the character is dressed, how she moves, which sounds/soundtrack accompany her, might not need a formal specification and can be left to the artist's interpretation (unless those details serve some purpose in terms of gameplay and need to be directed by the game design). Likewise, even if you ...
