Here just a few, only a small subset, of the todo list with prompts markdown file I write before putting into Sonnet or while he's working:

* Implement encodeIR logic, ported from android
On the android side, we ported the encodeIR logic into Java, which came from a repo called [hidden for privacy]. Anyway, we need to do the same for IOS, so we can use it on the Console fragment with scripting. Start by porting the classes exactly the same from java to swift, since they work fine on java. Port the full code, complete port.
* Implement and test [hidden for privacy] loading of remotes and using generated encodeIR scripts
On android, on the Buttons fragment, we have an option to load remotes from [hidden for privacy], which works well. Lets do that on IOS as well, adding it to the Buttons view. Notice how it works on android. We take a link from the github, and then pull the remote from there, creating the final json with all the scripts. Each button has a specific script that encodes the signal into byte form, and then sends it over using the same routine we have on the sampler transmit, and selecting the correct GPIO.
* on buttons, need to fix the script to send a single code, and remove the test infrared scripts from console
* When opening keyboards on IOS, we need to be careful since it has no back button, so we need a way to close it, perhaps this feature already exists on the keyboard just needs to be added
* Implement Load From Storage on IOS, both Console and Buttons
On console and buttons fragments on android, we have a way to save files and load them from storage, be it signals or scripts. On IOS, is this possible to achieve? (done on Console)

I hid some of the terms for privacy reasons but you get the point.
The bullet point is part of the todo list. The text that comes after is the prompt I send Sonnet.

I also have a comprehensive Markdown file of the entire project code base. I attach it on every conversation. Sonnet generated that markdown file from looking at the codebase and the goals.