I think CodeAssist ( https://codeassist.tech ) is a tool that would let you do that (I'm the creator). It has a chat, can execute actions (write code), puts context from other files into the prompt and has some long-term memory.

The problem is that at the moment it's slightly buggy and the UI is not so polished. I would recommend to submit your email to the newsletter on the website. Once I feel it's good enough, I'll send an email to everyone. Don't worry that I'll spam your inbox, I haven't sent any email yet to people who subscribed. I'll just send it when I feel the tool is good enough.