Prompt Kit keeps the writing in a project consistent. Describe a voice once, list the words you never want to see, and any harness that works in the project can apply both.
Usage
Ask for a voice sheet ("make a voice sheet from these three posts") and save it as voice/<name>.md.
Add words and phrases to voice/banned.txt, one per line. A voice sheet can extend the list with its own.
Ask for a style pass on a file or a selection ("apply the support voice to this reply").
What you get
The edited text in place, with a short note of what changed and why. The style guide ships inside the package, so nothing is downloaded while you work.
Configuration
A voice sheet is plain Markdown in three parts: who is speaking, to whom, and examples. Two or three short examples are enough.
The banned-word check ignores case and matches whole words only.
Notes
Works with any harness that reads skills from the project folder.