openai/codex · error

prepared escalated command must not be empty

Error message

prepared escalated command must not be empty

What it means

Error "prepared escalated command must not be empty" thrown in openai/codex.

Source

Thrown at codex-rs/shell-escalation/src/unix/escalate_server.rs:334

                    "mismatched number of fds in SuperExecMessage: {} in the message, {} from the control message",
                    msg.fds.len(),
                    fds.len()
                ));
            }

            let PreparedExec {
                command,
                cwd,
                env,
                arg0,
            } = tokio::select! {
                prepared = command_executor.prepare_escalated_exec(&program, &argv, &workdir, env, execution) => prepared?,
                _ = parent_cancellation_token.cancelled() => return Ok(()),
                _ = session_cancellation_token.cancelled() => return Ok(()),
            };
            let (program, args) = command
                .split_first()
                .ok_or_else(|| anyhow::anyhow!("prepared escalated command must not be empty"))?;
            let mut command = Command::new(program);
            command
                .args(args)
                .arg0(arg0.unwrap_or_else(|| program.clone()))
                .envs(&env)
                .current_dir(&cwd)
                .stdin(Stdio::null())
                .stdout(Stdio::null())
                .stderr(Stdio::null())
                .kill_on_drop(true);
            scrub_non_inheritable_env_vars(command.as_std_mut());
            unsafe {
                command.pre_exec(move || {
                    for (dst_fd, src_fd) in msg.fds.iter().zip(&fds) {
                        libc::dup2(src_fd.as_raw_fd(), *dst_fd);
                    }
                    Ok(())
                });

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/shell-escalation/src/unix/escalate_server.rs:334 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/69dea7db804a7f60. Report an issue: GitHub.