AI productivity platform
Montlify
One workspace holding 33+ AI tools for writing, research and chat, with the accounts, subscriptions and infrastructure needed to keep them all running.
- React
- LLM APIs
- Streaming
- Authentication
Second Chair
A voice agent built for three people in the room rather than two on a call. It tracks who is speaking, warns the professional privately in their earpiece when a rule is crossed, and stays silent the rest of the time.
Open second-chair-chi.vercel.app
Product design, real-time audio pipeline and full-stack build
3-party
Built for a room, not a two-person call
Dual channel
Private warning in the earpiece, public answer in the room
Cited
Every warning names the rule that triggered it
What made it hard
Every voice agent on the market assumes two participants: a user and an assistant. A compliance conversation has three — the professional, the client, and whoever came with them. That breaks the usual design in three places at once: the agent has to know who is speaking, it has to warn one person without the other hearing, and it has to stay quiet through a conversation it is not part of.
How it was built
- 01
Knowing who is speaking
Speaker diarization in real time, because a compliance rule applies to the professional and not to the client. Attributing a sentence to the wrong person turns a useful warning into noise, and noise is what gets an assistant switched off.
- 02
Two channels, two audiences
Guidance is whispered to the professional on a separate audio path while answers to the room go out loud. The dual-channel design is the product: a warning the client can hear is worse than no warning at all.
- 03
A deterministic tier in front of the model
The rules that must fire immediately are evaluated deterministically rather than waiting on a language model. Model-based evaluation handles the judgement calls; anything that has to be instant never queues behind a token stream.
- 04
Silence as a designed behaviour
It answers when addressed by name and otherwise says nothing. Most of the engineering in a live-listening agent goes into deciding when not to speak, which is the opposite of how these systems are usually demoed.
- 05
Redaction before storage
Account numbers and identifying details are stripped before a transcript is written. The audit record has to survive a compliance review of its own, so the safest transcript is the one that never held the number.
What it does
- Real-time speaker identification
- Private earpiece warnings
- Answers only when addressed
- Compliance rule evaluation
- PII redaction before storage
- Cited audit transcript
More work
Other things we've shipped.
E-commerce platform
Agento Wear
A production storefront built from nothing: catalogue, guest checkout, payments, order processing, automated email and an admin dashboard the owner runs without an engineer on call.
- Next.js
- React
- Supabase
- Payments
Have something like this in mind?
A short call, then a written scope with a fixed price and a date. Scoping costs nothing and the document is yours either way.