Your agent needs a yes.
Never miss it again.
Claude Code pauses to ask permission — and stalls while you're away. Sentinel is a tiny guardian on your desktop that speaks up the instant a decision is needed, and syncs your click straight back to the agent.
A companion that reacts to your agent
Sentinel watches your Claude Code session and shows you exactly what it's doing — then hands you the decision.
Tilts & wonders
When the agent is reasoning, Sentinel looks up with a thought bubble.
Taps away
When it's running tools and writing code, Sentinel types along at the keyboard.
Speaks up
The moment a confirmation is needed, it turns to you and asks. One click, synced back.
Small on screen, big on focus
Lives at the edge of your desktop, floats above everything, and hands you the decision the moment it's needed.
Bash:npm AllowEdit AllowSmall guardian, serious focus
Always on top
Floats above everything — even fullscreen editors and video. It's there when you glance over.
One-click answers
OK, No, or hand it back to the terminal. Your choice syncs straight into the agent — no context switch.
Remembers your calls
Approve once, or "always allow" a tool. Read-only actions auto-pass, so it only interrupts when it matters.
Sound & notifications
A gentle chime and a system notification the instant your input is needed — from across the room.
Perches on the edge
Collapses to a tiny orb on your screen's edge. Click to wake it. Drag it anywhere you like.
Private & free
Everything runs locally on your Mac. No account, no cloud, no tracking. No Node install needed.
Questions, answered
What is Sentinel AI?
A desktop companion that surfaces your AI coding agent's confirmation prompts as a friendly floating character. Approve or deny with one click — no need to keep watching the terminal.
Which AI tools does it work with?
Claude Code today — it plugs into Claude Code's official hooks. Support for more coding agents is on the roadmap.
Do I need to install Node.js?
No. Sentinel runs the integration with its own bundled runtime, so there's nothing else to install beyond the app itself.
Is my code or data sent anywhere?
No. Everything runs locally on your Mac over a private local connection. No account, no cloud, no tracking.
Does it stay visible over fullscreen apps?
Yes. Sentinel floats above everything — including fullscreen editors and video — so you never miss a prompt.
What are the requirements, and is it free?
macOS 12 or later on Apple Silicon, with Claude Code installed. Sentinel AI is free.
Bring your guardian home
Free for macOS on Apple Silicon. Works with Claude Code.
↓ Download Sentinel AI.dmg