openai/codex · error · std::io::Error

`sandbox_mode` and `permission_profile` overrides cannot bot

Error message

`sandbox_mode` and `permission_profile` overrides cannot both be set

What it means

Error "`sandbox_mode` and `permission_profile` overrides cannot both be set" thrown in openai/codex.

Source

Thrown at codex-rs/core/src/config/mod.rs:3240

            compact_prompt,
            show_raw_agent_reasoning,
            tools_web_search_request: override_tools_web_search_request,
            ephemeral,
            bypass_hook_trust,
            additional_writable_roots,
            workspace_roots: workspace_roots_override,
        } = overrides;
        let bypass_hook_trust = bypass_hook_trust.unwrap_or_default();

        if bypass_hook_trust {
            startup_warnings.push(
                "`--dangerously-bypass-hook-trust` is enabled. Enabled hooks may run without review for this invocation."
                    .to_string(),
            );
        }

        if sandbox_mode.is_some() && permission_profile.is_some() {
            return Err(std::io::Error::new(
                std::io::ErrorKind::InvalidInput,
                "`sandbox_mode` and `permission_profile` overrides cannot both be set",
            ));
        }
        if sandbox_mode.is_some() && default_permissions_override.is_some() {
            return Err(std::io::Error::new(
                std::io::ErrorKind::InvalidInput,
                "`sandbox_mode` and `default_permissions` overrides cannot both be set",
            ));
        }
        if permission_profile.is_some() && default_permissions_override.is_some() {
            return Err(std::io::Error::new(
                std::io::ErrorKind::InvalidInput,
                "`permission_profile` and `default_permissions` overrides cannot both be set",
            ));
        }
        if let Some(profile) = cfg.profile.as_deref() {
            return Err(std::io::Error::new(

View on GitHub (pinned to 339751715c)

Solutions

1. Set only one of `sandbox_mode` or `permission_profile`.

When it happens

Trigger: Thrown at codex-rs/core/src/config/mod.rs:3240 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/2313501311a4ecef. Report an issue: GitHub.