Usually I keep terminal split open with the agent side by side and make edits by hand where needed or for reviewing the code. Inside the vim itself I have a small plugin that you can feed a block of text with the comment instructing LLM what to do. It then replaces the text with the result of execution. Super useful for small edits here and there that don't require full session. I also have preconfigured neoterm float with the pi agent, that allows me to jump into the session right away.