compact execution failed

What version of Codex CLI is running?

v0.118.0

What subscription do you have?

ChatGPT Enterprise

Which model were you using?

gpt-5.4

What platform is your computer?

Linux 4.18.0-553.62.1.el8_10.x86_64 x86_64 x86_64

What terminal emulator and version are you using (if applicable)?

xterm

What issue are you seeing?

"When executing a prompt with the context window already partially used, an error message appears during the automatic compact process and the execution fails. After that, even running /compact manually does not work.

• error message in TUI

■ Error running remote compact task: stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses/compact)

• error message in codex-tui.log

2026-04-01T00:04:37.591078Z ERROR session_loop{thread_id=019d3c70-a313-7573-a258-2b6cc79ce1a2}:submission_dispatch{otel.name="op.dispatch.compact" submission.id="019d465a-0b4e-7651-948b-e679cdcdc159" codex.op="compact"}:turn{otel.name="session_task.compact" thread.id=019d3c70-a313-7573-a258-2b6cc79ce1a2 turn.id=019d465a-0b4e-7651-948b-e679cdcdc159 model=gpt-5.4}: codex_core::compact_remote: remote compaction failed turn_id=019d465a-0b4e-7651-948b-e679cdcdc159 last_api_response_total_tokens=213930 all_history_items_model_visible_bytes=927677 estimated_tokens_of_items_added_since_last_successful_api_response=870 estimated_bytes_of_items_added_since_last_successful_api_response=3479 model_context_window_tokens=Some(258400) failing_compaction_request_model_visible_bytes=942370 compact_error=stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses/compact)

What steps can reproduce the bug?

Uploaded thread: 019d3c70-a313-7573-a258-2b6cc79ce1a2

What is the expected behavior?

Context compaction should complete successfully

Additional information

_No response_