I put Codex's weekly limit and reset credits in my MacBook notch (open source)

I kept checking two things all day: how much of the weekly limit I had left, and whether a reset had landed. So I built Agent HUD, a Mac app that puts both in the notch. The glow around the notch is the quota: green, yellow at 70% used, red at 90%. One segment per quota window, so the 5-hour and weekly windows are both visible at a glance. Hover to expand: each window with its reset countdown, remaining reset credits, token usage by model, and the sessions running right now. The notch lights up when a turn finishes, when a window crosses 90%, when you are on pace to run out before the reset, and when quota resets, including early resets. How it reads Codex: it talks to the local codex app-server (the Desktop-bundled engine or the CLI) and calls account/rateLimits/read and account/read. It never opens a thread or starts a turn, so nothing is billed. Token counts come from the rollout files Codex already writes on disk. No Agent HUD account, no telemetry. It also covers Claude Code, Cursor, Copilot CLI, DeepSeek, Kimi, GLM and nine more, which helps when you switch between them. Free on Mac, open-source core (Apache-2.0, Swift 6): github.com/jazzenchen/agent-hud-open