Your AI agents are cooking your Mac.
Claude Code, Codex and Cursor start builds, tests and renders that turn a MacBook into a stove. WhoIsCooking lives in your notch, shows which agent is the heat, and cools it down without stopping its work.
Buy for $5One-time purchase, no subscription. For Apple Silicon Macs on macOS 14 or later.
Same render. 64°C before, 50°C after.
Cooling moves heavy work onto your Mac's efficiency cores. The job keeps running, a little slower, and your Mac drops about 14 degrees. Click Full speed whenever you want the power back.
One row per agent
An agent session and everything it started (builds, tests, dev servers, renders) shows up as a single line, instead of 80 cryptic processes.
Cool, don't kill
Nothing gets frozen or closed unless you ask. Your terminal and your apps stay usable the whole time.
Knows when something runs away
You get a nudge when an agent burns CPU for five minutes straight, or leaves dev servers running after its session ends.
Recognises Claude Code, Codex CLI, Gemini CLI, Cursor, Aider, Copilot CLI, Ollama and LM Studio, plus Xcode builds, ffmpeg, Docker and your browser. Lives in the notch or the menu bar, whichever you prefer.
Questions
Does cooling slow my agents down?
A bit. The work runs on the cooler efficiency cores, so it takes longer but stays quiet. Full speed puts everything back instantly, and quitting the app always restores full speed.
Will it break my agent sessions?
No. It never freezes your terminal or your apps. It only changes which cores the work runs on, or quits something when you explicitly choose Quit.
Does the app itself heat my Mac?
No. It reads the chip sensors every 20 seconds and only looks at processes while it's open or your Mac is hot. Idle, it uses about 0% CPU and 14 MB of memory.
What about Intel Macs?
The temperature sensors it reads exist only on Apple Silicon (M1 to M5). Intel Macs can see CPU use but not temperature.
Is it safe to open?
Yes. It's signed with an Apple Developer ID and notarized by Apple, so macOS opens it without warnings.