Use case
The prose parts of writing code
Most of a working day in an editor is code, and the rest is English: the commit message, the comment explaining why, the pull request nobody wants to write.
The parts everyone writes badly because typing them is boring
A commit message that says what changed and why is worth more than the diff, and it is the first thing that gets shortened to "fix". Spoken, the full sentence costs nothing.
A code window has its own register
File your editor under the code tone: identifiers survive, spoken punctuation lands as punctuation, and the sentence is not tidied into an email. Your terminal can be filed separately.
Questions about this
Does it type into the editor or a side panel?
At the cursor, in the editor, like a keyboard.
Will it capitalise my identifiers?
Add them to the personal dictionary once and they land the way you spell them.