0% context free leads to ⚠️ Stream error: stream disconnected before completion

What version of Codex is running?

0.46.0

Which model were you using?

gpt-5-codex

What platform is your computer?

Ubuntu bare metal server

What steps can reproduce the bug?

Keep on resuming your codex session until 0% context free.
Then every request results in [⚠️ Stream error: stream disconnected before completion].
Compaction is no longer possible.

What is the expected behavior?

Error message should be: 0% context available. Requests no longer possible.
Offer to truncate context, or edit it manually.
Warn at 5% free with offer to compact.

What do you see instead?

_No response_

Additional information

_No response_