I recently did some snooping (through Dependabot) on what open source projects have been using Harper.
Since I last checked, there are some new ones.
I wonder if the recent additions have anything to do with Harper going 1.0.
Someone also wrote a book using Harper.
This post is now out-of-date. There are even more projects using Harper today (as of 6.11.2026). The canonical list exists in Harper’s Documentation
Published December 23, 2025 at 7:00 AM
Proofread by Harper.
First of all, I have to say Harper is a very great project. Keep up the good work 💪. I am curious whether Harper supports Harper or plans to support python
Thank you for the kinds words! Right now, it is not on the roadmap. One of our main contributors did some tinkering a while back, which you're welcome to take a look at. If you'd like that work to turn into an official library, please file an issue. https://github.com/hippietrail/harper-py
It's not easy, but I think it's one of the best habits I've ever built.
A complete or partial loss of function while reviewing the output of a coding agent.
It didn't work for me, and if you reading this, it probably won't work for you either.