v0.0.2Playbooks are here. Guide Ruby your way.

Ask the question that
actually matters.

Ruby is your on-call assistant. It listens live and surfaces the one thing worth saying — right when you need it.

Download for Mac

macOS 14.4+ · Beta

ON THE CALL

Your assistant, on every call.

One note blooms when there’s something worth saying — and fades on its own. You never owe Ruby a click.

Google MeetFileEditViewWindow
Ruby
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Google Meet — Arjun · Swiggy
AK
Arjun · Swiggy
🎙
🎥
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WORTH ASKING
"Walk me through the last change that almost shipped wrong."
HOW IT WORKS

Three steps. Zero friction.

Ruby prep screen

Prep

Chat with Ruby before the call and it fills in the prep for you. No forms, no structure needed.

WORTH ASKING

Listen

Ruby listens live and surfaces one question worth asking, right when the moment calls for it.

Ruby recap screen

Recap

The moment the call ends, Ruby writes up what was said, what you asked, and what's still open.

FEATURES

Built around one rule.

Silence is the default — not a failure. Everything else follows from that.

Playbooks

Create custom rules for Ruby to follow. Tell it what to watch for, what to surface, and how to show up on any kind of call.

Ruby
Only visible to you — hidden at the OS level.

Hidden from screen share

The gem is visible only to you, protected at the OS level. The other person never sees it.

Investor call in 2 hours. Grill me on our growth numbers.
RubyWhat's the honest story behind last month's dip — and how will you tell it?

Prep your way

One sentence or a full grilling session. Ruby preps you as much or as little as you need.

0:00
WORTH ASKING
“What made you decide to build this?”
30:00

Silent by default

Ruby only speaks up when it has something that fits the sentence you're on right now.

Option
+
Shift
+
Space

On-demand hotkey

Ask Ruby what to ask at any moment. Zero interruption risk.

REQUIREMENTS

What you’ll need.

Ruby is in beta and improving fast.

macOS 14.4 or later
Required for CoreAudio process tap
Claude Code installed
Ruby shells out to your claude binary

Ruby works on any call. It listens, and speaks up when it counts.

Interview. Discovery. 1:1. Negotiation. Whatever the call — Ruby is there when you need it, quiet when you don’t.

macOS 14.4+ · Beta · free to try