Halo (latest)

Build 3cc1d9d — 2026-09-23

Start here: download Halo-Setup.exe and run it. It's a normal installer —
pick a folder, it installs, adds shortcuts, offers to launch Halo. Needs
Node.js and an OpenAI API key.

Halo-latest.zip is the same app as a portable folder, for anyone who'd
rather not install anything.

The Windows binaries (Pico.exe, Pico.Guardian.exe, from before the rename) are attached to the
numbered releases; they carry the older interface.

Pico v0.1.7

Windows computer-use agent with a floating companion — now with a command palette and a phone app.

Install

Download Pico-0.1.7-win-x64.zip, unzip, run Pico.exe. Open Settings and store your OpenAI API key (it goes to Windows Credential Manager). Or run install.ps1 for Start-menu and Desktop shortcuts.

Not code-signed, so SmartScreen will warn. Verify the hash in SHA256SUMS.txt before running.

What's new

Command palette — Ctrl+Shift+P. Type a task, pick a recent one, pause, stop, or jump to settings. Esc stays the emergency stop and is never swallowed while a run is live.

The companion actually expresses state. Eleven phases, each with its own motion and face — reading the desktop, planning, working, paused, waiting on you. The mascot's face is a screen, so it changes colour with the phase.

Approval and takeover are real cards showing the risk level, the category, and the policy's own reason, rather than a line of text.

Activity timeline of what Pico did, step by step. It renders an allowlist of fields, so typed text, coordinates and screenshots can never reach the interface.

Fixed: pressing resume did nothing. If you held Ctrl+Shift while pressing the resume chord, the run re-paused instantly with no explanation — it was possible to press it three times in three seconds and never get going. That state is now shown, with keycaps that go dark as you let go of each key.

Control it from your phone

node bridge/server.mjs

Scan the QR code that appears, on the same Wi-Fi. Send tasks, watch each step, pause, stop, and answer approvals from your phone. Add it to your home screen — works on Android and iPhone.

Your phone talks to your laptop directly. No relay, no account, nothing exposed to the internet. The phone can answer an approval; it can never skip one.

Requirements

Windows 10 version 2004+ or Windows 11, x64. An OpenAI API key with access to a model supporting the Responses API computer tool. Node 18+ only if you want the phone bridge.