So it's not perfect, but I've got a tool up to help create spells out of the words of power system for pathfinder.
Again, this tool is not yet perfect, nor complete.
If you change one of the top two drop down boxes, you will get a list of all words that class can use. You can add meta words to the word as well using a button shaped like a plus sign. Once you have your word, and all meta words added, hit "add word to spell" and it will move that word to your final spell area where it will go ahead and update your current spell level(sort of). It also trims out any target words you can no longer use.
This is very much a work in progress, so if anyone has any feedback, please feel free to crush my spirit (just kidding, please be nice :P).
Power word: tool.
the target becomes a cashed up bogan (will negates)
I plan on adding a 'reset' function shortly. Actually I meant to add that before I published and linked it anywhere.
I'm at work now, but that'll be the first thing I do when I get home.
As for Boosts - that's number 2. It would be really easy if not for the fact that some words have two boost effects. And one single boost has class restrictions on it.
Removing words from the final spell is going to be a bit tricky and will probably come later.
Thanks for the feedback :)
EDIT:
If you change your class or the highest word level drop down it should reset the spell. Not ideal, but probably better than nothing for now.
Boosts now work and show up as meta words. They have their associated level there with them as well.
In addition there is a button that will reset the spell for you. I hope to get a 'remove word from spell' button up soon, but we'll see how far that goes along.