Developer Tools

WhoIsCooking: See Which AI Agent Is Heating Your Mac

WhoIsCooking shows which AI agent is heating your Apple Silicon Mac and cools it down without stopping its work. $5 one time, no subscription.

WhoIsCooking is a small Mac app that answers one question: which AI agent is heating your Mac, and how do you cool it down? It launched on Product Hunt on October 26, 2026. Claude Code and Codex start builds, tests and renders that turn a MacBook into a stove, and Activity Monitor shows dozens of node and compiler processes with no temperature at all. WhoIsCooking shows the chip temperature in your notch or menu bar, groups each agent session with everything it started into one row, and cools it down without stopping its work.

What WhoIsCooking does

One row per agent: an agent session and everything it started, builds, tests, dev servers and renders, shows up as a single line, instead of 80 cryptic processes.
Cool, do not kill: the “Cool down my Mac” button moves busy work onto your Mac’s efficiency cores. The job keeps running, a little slower, and your Mac drops about 14 degrees. On the maker’s M5, four processes flat out went from about 83 degrees at full speed to about 48 degrees cooled. Nothing gets frozen or closed unless you ask.
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 your agents: 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. Idle, it uses about 0 percent CPU and 14 MB of memory.

WhoIsCooking needs Apple Silicon (M1 to M5) on macOS 14 or later, because the temperature sensors it reads exist only on Apple Silicon. Intel Macs can see CPU use but not temperature. It is signed with an Apple Developer ID and notarized by Apple, so macOS opens it without warnings. Honest limits, from the maker: it cannot cool GPU work or Apple’s own processes.

Who it is for

WhoIsCooking targets developers who run AI coding agents on a MacBook: people whose Claude Code, Codex or Cursor sessions keep their laptop hot and loud, and who want to see exactly which agent is responsible and cool it down with one click, without killing anything.