# SidePulse: Agent Status, at a Glance (LEDs in MacBook Pro SD Slot) > Source: > Published: 2026-09-08 02:58:58+00:00 ##### SidePulse # Agent status, at a glance Your AI agents work while the lid is closed, while you're in another app, while you're across the room. SidePulse turns their status into light — a string of RGB LEDs that lives in a port you already have. No driver. No app. The device mounts as a tiny filesystem, and you control the lights by writing a file: `LEDS.LED`. ### SidePulse Pro $69 8 RGB LEDs · MacBook Pro SD slot → ### SidePulse Dot $29 2 LEDs · USB-C · works everywhere → ### Which one is for me? - **SidePulse Pro** tucks into the SD card slot of a MacBook Pro — the slot that 99% of people never use. 8 RGB LEDs, inconspicuous when you want it, glowing when you need it. - **SidePulse Dot** is a tiny USB-C dot with 2 LEDs. It works on*every* Mac — Air, mini, iMac, Studio — and on iPhone, where the SidePulse app lets you drive it from the CLI or Shortcuts. Both speak the same simple, CSS-inspired animation language. Learn it once, use it everywhere — the full syntax is in the [LED format reference](https://github.com/inteliwear/sidepulse/blob/main/LEDS_FORMAT.md). **Don't want to learn it?** Just ask your AI. Point your coding agent at the device and say *"blink the lights green when the build passes"* — it writes `LEDS.LED` for you. ### Designed for the agent era Coding agents, long builds, deploys, background jobs, downloads, reminders — anything that finishes when you're not looking. Give it a color. **First batch — built for enthusiasts.** This is an early run for tinkerers and early adopters. The software is intentionally minimal right now, but it's **fully hackable and agent-controllable** — the device is just a file, so your own scripts and AI agents can drive the lights however you want. **Included from day one:** agent monitoring (Claude & Codex), MacBook battery display, works with the lid closed, and lets your Mac sleep once your agents finish.