Show HN: Baa – find and free what your AI agents left running on your Mac

A developer released Baa, a free macOS menu-bar utility that detects leftover processes — including things AI agents started and forgot about, idle Ollama models, and Docker instances with no containers — and frees them in one click, installable via Homebrew with a minimum requirement of macOS 14+. Baa flags memory pressure at 15% RAM free (yellow) and 8% (red) by default, adjustable through the `baa warn` command, and also identifies dev junk filling disk space such as old builds and package caches; the developer says it never kills anything on its own and was "vibecoded" in 30 minutes.

a tiny ram for your RAM tldr; baa lives in your menu bar, tells you when your mac is about to run out of RAM or disk, finds the stuff quietly eating it, and frees it in one click. if you like baa , i’d love a star ⭐️😄 turns out most of my RAM wasn't going to apps i had open. it was mostly dev servers, builds and agent leftovers i'd forgotten about. baa 🐏 is a little ram that headbutts all of that out of your mac. it plays a tiny baa when it frees something you can mute this if you hate whimsy though :P - lives in your menu bar as 🐏 + how much RAM is free. turns 🟡 / 🟠 / 🔴 when things are getting tight - finds stuff you forgot was still running: - 👻 apps and scripts that should've closed but didn't - 🤖 things ai agents started and forgot about - 💤 big stuff just sitting there idle agent sessions idle for hours, docker with no containers, an ollama model still loaded - tells you how much RAM you'd get back, and frees it in one click - pings you a few minutes before you run out - also finds dev junk filling up your disk old builds, package caches etc. and trashes it in one click brew tap selviarora/baa https://github.com/selviarora/baa brew install selviarora/baa/baa brew services start baa that builds baa on your mac, starts it in your menu bar and at every login , and adds the baa command. needs macOS 14+. or build it yourself you'll need xcode command line tools xcode-select --install . git clone https://github.com/selviarora/baa && cd baa ./install.sh that builds the app into ~/Applications , starts it when you log in, and adds the baa command. | baa | RAM readout + leftovers, right in your terminal | | baa free <id | free one leftover ids are in the readout | | baa free all | free everything it found | | baa disk | dev junk taking up your disk | | baa disk clean <id | clear one or all | | baa warn 20 10 | go 🟡 at 20% free and 🔴 at 10% or tap the sliders icon in the panel | | baa test | send a sample notification | by default baa goes 🟡 at 15% RAM free and 🔴 at 8%. to change that, click 🐏 → the sliders icon at the bottom → set your own. or from the terminal: baa warn 20 10 🟡 at 20% free, 🔴 at 10% baa warn see what it's set to it'll still go 🔴 if macOS itself says memory is critical. the 🟠 "dropping fast" heads-up only fires when RAM keeps sliding and you're close to 🟡, not on every app launch. turn it off in the same place, or with baa warn --no-trend . basically baa looks for stuff that's still running but not doing anything: - its app or terminal is closed but it's still going - an ai agent started it and it's been sitting idle for 15+ min - it's big and hasn't used any cpu in a while it also watches memory pressure the green / yellow / red graph in activity monitor , not just how much RAM is used. macs use most of their RAM all the time and that's usually ok it will also never kill anything on its own. brew upgrade baa or if you built it yourself: git pull && ./install.sh if you used brew: brew services stop baa && brew uninstall baa if you built it yourself: launchctl bootout gui/$ id -u /com.selvi.baa rm -rf ~/Applications/Baa.app ~/Library/LaunchAgents/com.selvi.baa.plist ~/.local/bin/baa vibecoded this in 30 mins so hopefully nothing is broken