Ha, this triggered me. I'm building exactly this.

It's a coding agent that takes a ticket from your tracker, does the work asynchronously, and replies with a pull request. It does progressively understand the codebase. There's a pre-warming step so it's already useful on the first ticket, but it gets better with each one it completes.

The agent itself is done and working well. Right now I'm building out the infrastructure to offer it as a SaaS.

If anyone wants to try it, hit me up. Email is in my profile. Website isn't live yet, but I'm putting together a waitlist.