I too think vanish it's fine as it is. For example, with 3 options you can:
- Easily cover the distance betweem you and the holy grail
- You seize hold of the grail
- You vanish into shadows, while saying out luck "suckers!"

I rewrote dirty fighting again:
"When you join single combat, and you wield a blade you have the right to fight dirty: you roll Wary instead of
Strong and your weapon is poisoned: the first time you harm your opponent, he loses 1 position if he picked that
combat option."

and about the lies:
When win someone over you can choose to roll Bold instead of Good. If you do it, you have the right to spread
false rumors and be believed.

My thoughts about your thoughts :D
- Remain silent: about the "uncover" part, it's true, everybody can. I was implying that you have the mechanical right to know some secrets from time to time just by hearing and watching people. Perhaps i should remark that part a bit. My idea was: since you are a spy, you are trained to notice even the smallest things, and that get you to know things other couldn't.

- Fight Dirty: only one of the 2 options would be very very weak imho.

- Vanish: It's a leap out of action, yes. I could make the reverse perhaps? When you leap into action, you have the right to emerge from a shadow if no one were watching you first. How does that sound? Mechanically it's better, but narratively it's the opposite: you use it to take people by surprise instead of using as a get out of the jail card.

- Lies: you'll roll badly sooner or later, and then will they believe you anything you already said in the past? You have to mix lies and truths, and spreading false rumors and be believed it's pretty fun imho. Telling lies is different from falsely promising something. Should i change it to "spread false rumors"? My intention isn't that you can get what you want using a promise you won't keep, the intention was "you can insert some rumors or talk behind the back of someone inside a conversation and the person who hears it will believe those lies and act accordingly".

About the "retroactive part", it's straight from AW book btw. Did aw felt too superheroistic by the existance of that move? (and everyone could use that)

This is nonsense. So in a medieval world it should be impossible to sneak behind the guards because the game "isn't about sneaking"? Are you serious? If there is a guarded gate i should change game or else i can't get even try to get in unnoticed?

Edit:
One of my players in my playtest wanted to speak with a prisoner without the consent of the war captain. So she wanted to distract the guards, sneak behind them and have a late night chat with that prisoner because she thought he was a threat and he made himself prisoner with a purpose (spread lies about an attack in a specific place to draw the war company out of the safety of the walls). So since the game isn't about sneaking and we aren't playing dungeonworld, this move was impossible to do and i had to say that she couldn't sneak behind the guards OR that she sneaked behind the guards without rolling and risking anything because there is no move to do it.
That move isn't an "action" move, is a "narrative" one. And if you plan to play a social intrigue campaign is NEEDED i think.

1) remain silent: it's also useful to resist torture and not tell what you know. If people knows that you know something, they'll try to take it from you... and with this right, you can keep your mouth shut. You can't be won over, you can't be tortured and so on. Ok, there is no narrative behind you keeping your mouth shut, but it saves your ass when your cover is blown.

2) Fight dirty: i don't understand why people thinks it's op. 3harm and 1 extra option, without the possibility to use shields and armor, it's way worse then the war champion one (which has 1 extra option on top of 3 or 4harm weapon, a shield and an armour and maybe even a warhorse). But you can use Wary, and this part is powerful. But in a straight fight war-champion vs spy, the spy loses most of the times.

3) Safe hideout: it's one of each, you specify the hideout when you need it the first time. Without rolling because i hate too many rolls.

4) Vanish into shadows: I thought this was the most powerfull trick in the spymaster slevees. So i'm a bit puzzled right now :p

5) Lie: well, i have my doubts about it. There is no "lying" move in this game like in AW where you roll to manipulate someone. The win someone over is the read a person move. I wanted the manipulate move into the spy. I should write it better perhaps.

6) Pyshical caution: yes i created this playbook just to have this move :p

7) Spy network: i need it if i want a Varys type and it adds some risk when you use it. Ok you can remain silent, but your spies can't: what do you do?

8) Declare retroactively: you know things, so you are prepared to the worst case scenario. That's what i thought. Perhaps this move is too batman-y, but i need to test it.

New rights (except one that's from aw).

Kewl, tonight i make the first draft of the playbook. :)