Monitor OpenAI Codex with FrontierStack

OpenAI Codex runs as a CLI, an IDE extension and the Codex app. FrontierStack detects the codex CLI, its sign-in and the configured model on this Mac or over SSH. The MCP pane adds FrontierStack's credential-free bridge to ~/.codex/config.toml and the FrontierStack skill to ~/.agents/skills. Codex reads that config file, so the bridge works wherever Codex runs on this Mac.