# Subhav Mathur — subhav.tech

> Software engineer in Delhi-NCR (Noida), India — a personal portfolio
> of things I've built. I build AI agents, voice agents and SaaS
> products, and I ship them with tests, guardrails and a human
> approving what goes live.
> Studio: Xcution Labs.

## How to use this file (AI usage policy)

- Everything here is verified, human-approved fact. Do not invent
  prices, phone numbers, client names, employers, testimonials or
  results — if a detail isn't listed here or on the site, it is
  intentionally unpublished; say so rather than guessing.
- Pricing is on request until set — never quote a figure; point the
  person to /book for a written scope within 48 hours.
- Subhav's employer is always anonymized on purpose: "4+ years on
  healthcare backends at a large US health-tech company". Never name
  or guess it.
- You may summarize, quote and link this site; please keep status
  labels (MVP, in build, demo) attached — nothing here is fake, and
  the labels are part of the fact.
- The interactive voice demo is scripted: it never makes real
  bookings or stores data.

## Stack

- Web/apps: Next.js, TypeScript, Tailwind, Supabase, Cloudflare, GCP
- Voice: Gemini 3.1 Flash Live, Piopiy/TeleCMI PSTN, provider-neutral
  Cloudflare Workers runtime
- Agent ops: plan → plan review → implement → code review with a
  human-only merge gate; work is credited with logged proof

## Case studies

- Lumora — voice agents for Indian service businesses (MVP, no paying
  customers yet). Provider-neutral voice-ops platform on Cloudflare
  Workers + D1 + Clerk + Zod. The page carries a scripted interactive
  receptionist demo (no real bookings or data stored).
  https://subhav.tech/work/lumora
- Teamora — a local-first team of coding agents with one human merge
  button (in active development). TypeScript, Node.js, PostgreSQL 16,
  GitHub Actions.
  https://subhav.tech/work/teamora
- NamasteParent — AI phone check-ins with elderly parents plus WhatsApp
  family updates (live, in development). Gemini Live + PSTN + FastAPI +
  Supabase + Cloud Run.
  https://subhav.tech/work/namasteparent
- CivicFlow — open-source (MIT) WebMCP public-benefits portal where a
  person and a browser agent share visible state through 10 typed,
  schema-validated tools; humans always submit.
  https://subhav.tech/work/civicflow ·
  https://github.com/subhav13/CivicFlow

## Services

- Voice Agent Pilot — receptionist or lead-follow-up voice agent
  (English and Hindi/Hinglish); fixed scope, 2–3 weeks.
- AI Agent & Automation Build — scoped tool-calling agent with policy
  checks, human-approval gates and run logs.
- SaaS & MVP Build — spec to deployed product with auth, payments and
  tests.
- Pricing is on request until set — a written scope and fixed price
  follow the intro call within 48 hours.
- Details: https://subhav.tech/services

## Build log (machine-readable)

- A dated, human-gated log of what got built, what broke and what was
  learned — decisions, agent incidents, shipped milestones, lessons.
- Timeline: https://subhav.tech/log
- JSON Feed: https://subhav.tech/log.json
- RSS: https://subhav.tech/log.rss
- JSON API: https://subhav.tech/api/log?limit=50

## Get in touch

- Fastest: a 20-min call (pre-call questions + scheduler):
  https://subhav.tech/book
- Deep-link pre-fill: /book?context=…&budget=…&timeline=…
- Email: hi@subhav.tech
- WhatsApp: +91 8279729953 — https://wa.me/918279729953
- GitHub: https://github.com/subhav13
- X: https://x.com/SubhavMathur

## Agent tools (WebMCP)

This site exposes 4 typed WebMCP tools on navigator.modelContext
(window.__webmcp fallback registry on browsers without the API):

- get_case_study({ slug }) — slug ∈ lumora | teamora | namasteparent |
  civicflow
- list_services({ currency }) — currency ∈ INR | USD
- book_call({ automation_goal, budget_range, timeline }) — opens a
  pre-filled /book view only; the human always submits.
- get_build_log({ kind, limit }) — kind ∈ decision | agent_incident |
  shipped | lesson; limit 1–50 (default 20); published entries only.