openai/codex · error · io::Error

remote control {response_kind} failed at `{url}`: HTTP {stat

Error message

remote control {response_kind} failed at `{url}`: HTTP {status}, {}, body: {body_preview}

What it means

Error "remote control {response_kind} failed at `{url}`: HTTP {status}, {}, body: {body_preview}" thrown in openai/codex.

Source

Thrown at codex-rs/app-server-transport/src/transport/remote_control/clients.rs:250

}

fn ensure_success_response(
    status: axum::http::StatusCode,
    headers: &HeaderMap,
    url: &Url,
    body_preview: &str,
    response_kind: &str,
) -> io::Result<()> {
    if status.is_success() {
        return Ok(());
    }
    let error_kind = match status.as_u16() {
        400 => ErrorKind::InvalidInput,
        401 | 403 => ErrorKind::PermissionDenied,
        404 => ErrorKind::NotFound,
        _ => ErrorKind::Other,
    };
    Err(io::Error::new(
        error_kind,
        format!(
            "remote control {response_kind} failed at `{url}`: HTTP {status}, {}, body: {body_preview}",
            format_headers(headers)
        ),
    ))
}

fn environment_clients_url(remote_control_url: &str, environment_id: &str) -> io::Result<Url> {
    let mut url = normalize_remote_control_base_url(remote_control_url)?
        .join("wham/remote/control/environments")
        .map_err(io::Error::other)?;
    url.path_segments_mut()
        .map_err(|()| {
            io::Error::new(
                ErrorKind::InvalidInput,
                "remote control URL cannot be a base",
            )

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/app-server-transport/src/transport/remote_control/clients.rs:250 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/514dde6b6a6c143c. Report an issue: GitHub.