Pitch Black...?

I've been reading a lot lately which obviously has been wonderful. Something that I've noticed is that the protagonist has to figure out who to trust and who might ultimately betray them. And then I got to thinking...what if I wrote about the person who you shouldn't trust? What is they are a self-proclaimed bad guy who is actually good? What if I get to mix morality and magic and confuse myself in the process? (In the best way possible.) 
I wanted to take a nap when this idea popped into my head. My eyes were closing and the opening line came into my head. I wanted it to go away. You know, go into the saved as draft folder in my brain. It didn't want to. Other authors have characters talking at them. I have words floating in my mind and threatening to escape out my ears. So before it got drenched by the humidity in my room I wrote it down.

They say trust no one and they are right. I would know.
I am no one.

So the words should have been satisfied. I lay back down and tried to fall asleep. Then I saw more words. Clearly it was time to wake up. Here's the beginning of what will hopefully be my next short story. (In the continued attempt to expand what I write.)

They say trust no one and they are right. I would know.
I am no one.
My name is Afchada and I was trained from birth to spy, trick, betray, steal, and even kill. This is the path I was born to and the path I have chosen to follow.
You should know about me. You should be warned. I'm not a cliche, I'm deadlier than that. 
For one thing I don't wear all black. I've no idea why anyone ever thought that was a good thing. All black is obvious. I wear what I want. My favorite color is purple so I wear a lot of that.
For anther, I work for no one. I'm no spy for hire. I am still a "bad guy" in laymen's terms.
Bad guys work to bring seemingly stable governments down. Bad guys seek to populate the world with their rulers.
However, we tell the truth.
It's the good guys who lie.

I showed the piece to one of my roommates and she commented that it seemed really dark. Yes it's darker than I've ever written before. I haven't began to unpack Afchada but I want her to have a really cynical, sarcastic sense of humor. She is a good person doing bad things for the right reason. But what is right? Is she the hero that we first meet? Is what I've written a prologue of sorts?

The next step is tricky because I don't want to over-philosophize and I don't want to be too cliche. I do want to create a magic CIA that works to bring justice to the world using tactics that may seem to harsh or extreme. And I want to create a new type of heroine who isn't "good" in the typical sense and that we don't always like but ends up winning our hearts.