Barrio · Scarano
Cardiology
The first practice that never closes.
The practice operated without any digital presence and with a human receptionist covering only daytime hours: after-hours calls were lost and appointment management ended up being handled informally through the Dr.'s personal WhatsApp.
We built the complete brand system, the live website, and Sofía — an AI voice assistant that handles calls 24/7, manages appointments, and routes cardiac emergencies to emergency services. This is JS80's first end-to-end case and the operational validation of the SecretarIA Voice Pack.
Two skilled cardiologists, zero digital infrastructure.
Typical situation in Argentine neighborhood medicine: full appointment book, no system around it.
No digital presence
Google searches found nothing about the practice. Everything outside word-of-mouth was lost.
Missed calls after hours
Human receptionist available only during office hours. In cardiology, a large volume of calls comes from chronic follow-up patients who have doubts at night or on Saturdays.
Informal management via personal WhatsApp
Cancellations, rescheduling, and queries ended up in Dr. Barrio's personal WhatsApp. It invades personal life and doesn't scale.
Cardiac risk without a protocol
Patients calling to describe symptoms with no clear referral channel. No protocol, no record.
Undefined identity
No name as such, no visual system, no way to present both professionals as equals.
Three integrated layers.
Brand manual v3.0 — complete system.
Built on four pillars (Time · Listening · Craft · Bond) and four clinical commitments signed by the practice: only necessary tests, medication only if required, check-ups are about peace of mind, we're here after the appointment too.
B · S — two initials separated by a copper dot, with no scale hierarchy.
Single-file landing page in production.
HTML5 + CSS3 + vanilla JS. No frameworks, no build step, no tracking. Google Fonts as the only external dependency. Automatic deploy from private GitHub via Vercel. In production on April 27, 2026.
Hero · What we do · The four commitments · Dual portraits · About each professional · Practical info · WhatsApp CTA · Footer
HTML5 · CSS3 with variables · vanilla JS · Intersection Observer · Google Maps embed without API key
Sofía — 24/7 voice agent.
Conversational agent on Eleven Labs Conversational AI. Defined identity: warm and measured tone, speaks in institutional plural with an explicit prohibited vocabulary list. Never diagnoses, never comments on symptoms, never recommends medication.
Six stages, not strictly linear.
Diagnosis and naming
Started as a personal brand manual for Dr. Barrio (v1.0 → v2.0). Cynthia joined as the second cardiologist, which forced a complete rethink from scratch. Decision: alphabetical order + copper dot as connector, no hierarchy.
Brand manual v3.0
Complete visual and verbal system. Self-contained navigable document, not a static PDF. Pillars, clinical commitments, palette, typography, isotype, dual portrait system.
Site copy
Building the plural voice without falling into corporate language. YES and NO vocabularies defined as a closed list. "We see patients", not "our team". The practice is two cardiologists, not a clinic.
Site build and deploy
Single-file HTML/CSS/JS, private GitHub, Vercel. In production on April 27, 2026. No frameworks, no build step: what's deployed is exactly what's written.
Voice agent setup
The most delicate stage. Architecture was redesigned after discovering that Eleven Labs uses a single system prompt at agent level, not per subagent. Hard rules consolidated into system prompt; Conversation goals describe only what each subagent does.
Testing and refinement
Critical cases in priority order: emergency, cancel → emergency, new appointment, fallback. The cancel → emergency edge was the most demanding: if someone calls to cancel because they "don't feel well" and describes a cardiac symptom, Sofía pivots without hesitation.
The five that defined the project.
Alphabetical order + copper dot as connector
No visible hierarchy between professionals. The medical industry resolves duos by putting the most senior's surname first; here it was different: B before S because B comes first in the alphabet. Propagates to the site, the agent, and the signature system.
Functional plural voice, anti-institutional
The agent and site speak in plural but with an explicit prohibited vocabulary — a closed list in the system prompt. That boundary defines the brand: two cardiologists sharing a space, not a corporate clinic.
Critical edge: Cancel → Emergency
If a patient calls to cancel because they "don't feel well" and describes a cardiac symptom, the agent pivots from cancellation to emergency. Don't assume canceling is the final goal. Configuring this edge can literally save a life.
Structural honesty about emergencies
The agent never diagnoses, never comments, never says "it might be nothing". At any cardiac trigger, it refers to emergency services (107) or 911 without ambiguity. Sacrifices apparent utility in exchange for eliminating reputational and clinical risk.
Single system prompt + short Conversation goals
Hard rules consolidated into the agent-level system prompt; Conversation goals describe only what each subagent does. Less repetition, more consistency, more maintainable. Becomes the template for all future Voice Pack projects.
Dr. Juan Pablo Barrio
Dr. Cynthia Scarano
Dual portrait system: same framing, same size, same visual weight. No hierarchy.
What's changed so far.
The voice agent is not yet in real production — KPIs are defined but there's no data yet. What follows is what exists today, without projections.
- First digital presence — site in production since April 27, 2026
- Complete, systematic brand identity — manual v3.0
- Voice agent configured and ready for production when a phone number is assigned
- Expected reduction of load on Dr.'s personal WhatsApp
- Operational validation of the Voice Pack ($15k–22k). Before it was "coming soon"; now it's "configuration tested with a real client".
- End-to-end Medical Pack operational template
- Technical learnings on Eleven Labs architecture and safety-critical conversational AI
- System prompt, conversation goals, and edges documented and reusable
What exists today.
Portrait · Dr. Juan Pablo Barrio
Portrait · Dr. Cynthia Scarano
See the live site.
The site is in production on Vercel with the permanent domain in process. The agent goes into production when a phone number is assigned.