openai/codex · error · io::Error

InvalidInput

InvalidInput

Error message

managed proxy mode requires parseable loopback proxy endpoints

What it means

Error "managed proxy mode requires parseable loopback proxy endpoints" thrown in openai/codex.

Source

Thrown at codex-rs/linux-sandbox/src/proxy_routing.rs:97

    routes: Vec<PlannedProxyRoute>,
    has_proxy_config: bool,
}

pub(crate) fn prepare_host_proxy_route_spec() -> io::Result<(String, AbsolutePathBuf)> {
    let (attribution_token, plan) = extract_attribution_token_and_plan(std::env::vars().collect());
    // SAFETY: the sandbox helper is single-threaded here, before it forks bridge workers or
    // executes the user command.
    unsafe {
        std::env::remove_var(PROXY_ATTRIBUTION_TOKEN_ENV_KEY);
    }

    if plan.routes.is_empty() {
        let message = if plan.has_proxy_config {
            "managed proxy mode requires parseable loopback proxy endpoints"
        } else {
            "managed proxy mode requires proxy environment variables"
        };
        return Err(io::Error::new(io::ErrorKind::InvalidInput, message));
    }

    let socket_parent_dir = proxy_socket_parent_dir();
    let _ = cleanup_stale_proxy_socket_dirs_in(socket_parent_dir.as_path());

    let socket_dir = create_proxy_socket_dir()?;
    let readable_socket_dir = AbsolutePathBuf::relative_to_current_dir(&socket_dir)?;
    let mut socket_by_endpoint: BTreeMap<SocketAddr, PathBuf> = BTreeMap::new();
    let mut next_index = 0usize;
    for route in &plan.routes {
        if socket_by_endpoint.contains_key(&route.endpoint) {
            continue;
        }
        let socket_path = socket_dir.join(format!("proxy-route-{next_index}.sock"));
        next_index += 1;
        socket_by_endpoint.insert(route.endpoint, socket_path);
    }

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/linux-sandbox/src/proxy_routing.rs:97 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/fb5359dee8ea0b2b. Report an issue: GitHub.