trivial in terms of effort, but still a chance in terms of probability he won't be suspicious enough to ask the right question.
Letter broad strokes:
I'm liking the letter idea. It's a costless gamble. And could lead to maybe some great returns.
Here's an example of something that shouldn't be taken too seriously but is the broad strokes.
To Itachi,
I'd love to comply and come back and demonstrate that I haven't broken the ban on dimensionalism. (That was the agreement, was it not? If not, please tell me the exact agreement, so I can more readily comply with any and all evidence you'll need)
It's a real busy research trip, so the rest of my company will continue without me. (Can't have Leaf Operations ground to a halt whenever you decide to check up on me, can we?)
I'd like some promises and rules on how you're gonna determine whether or not I've been doing dimensionalism research. I do a lot of seal research, and the agreement didn't mean Akasuki gets to read through the entirety of Goketsu's clan secrets every few months to check in on if "I'm complying" or not, correct?
You have a cheating eyeball that can tell if I'm lying to you or not. (Mari and others can attest to what a terrible liar I am.)
This lets me say, truthfully, this is a clan secret, this has nothing to do with dimensionalism, this can't (yet) harm you, and for you to see I'm telling the truth. (I will only be able to say (yet) as I come up with lots of crazy ideas from simple things! Skywalkers! Skyslicers being another! You saw how it killed those dragons. Basic seals that turn out later to be crazy dangerous! Otherwise I could be lying! I wouldn't want to do that!
In those cases where I'm being truthful, do you promise not to delve deeper? I know what your crazy eyes can do! It's impossible for you to read something and it to not immediately leak!
I have a lot of clan secrets and do a lot of mind numbingly terrifying seal research. You have to remember a lot of it is dangerous and can be perceived as a threat to people's interests. (Including your own.) Can you promise not to freak out if I hint or say I'm looking at some crazy cool seal research theory or ideas and not tell you what it is or what I've discovered? And for you to be okay with that?
If I can say these three things: I haven't broken the ban on dimensionalism. I've haven't researched anything that can
very directly threaten your interest (yet, who know what I could accidentally think up? Or put together? It's not my fault okay? I was born this way. Blame the gods.) and it's a clan secret outside of the scope of our agreement meaning I won't be sharing the details with you. Would that be acceptable with you?
Hearts and kisses,
The Mad Clan Lord.
Hazo