What automatically consumes Codex usage without doing anything?

My codex usage reset today – I saw 100% an hour ago. I didn’t use codex in that time. I check, and its at 96% weekly and 70% 5h usage limit – I did not use code review or do anything that triggered that, or use codex in any way. Wait – as I was typing this I checked again, its now at 50% 5H usage and 92% weekly – it’s continuing to actively use up my limits. Why? What is it? How do I manage that and disable it?