Without compacting, context window increased from 52% to 71%

Question

### What version of Codex is running?

codex-cli 0.53.0

### What subscription do you have?

Pro

### Which model were you using?

gpt-5-codex high

### What platform is your computer?

Darwin 25.0.0 arm64 arm

### What issue are you seeing?

Without compacting, context window increased from 52% to 71%
See the feedback comment, I wrote it there.

The model might have lost important context.

Or maybe this is just a counter error?

### What steps can reproduce the bug?

Uploaded thread: 019a3fd7