Comment by dudeinhawaii

Depending on task complexity, I like to write a small markdown file with the list of features or tasks. If I lose a session (with any model), I'll start with "we were disconnected, please review the desired features in 'features.md', verify current state, and complete anything remaining.

That has reliably worked for me with Gemini, Codex, and Opus. If you can get them to check-off features as they complete them, works even better (i.e, success criteria and an empty checkbox for them to mark off).