I Used Claude Code to Build a KYC Spec for Indian Stock Broking 🇮🇳

The Problem 🤯 If you've ever tried to open a demat account in India, you know the pain — PAN verification, Aadhaar e-KYC, DigiLocker consent, bank penny drop, KRA registration, CKYC upload, eSign... the list goes on. Now imagine you're the engineer who has to build that system. You're staring at 25+ vendor APIs, 8 regulatory bodies, 454 data fields, and SEBI circulars that change every quarter. I needed a single source of truth. Something that connects the dots between what the user sees on screen and what happens behind the scenes — the API calls, the batch pipelines, the maker-checker workflows, the exchange registrations. So I built one. With Claude Code as my co-pilot. 🤖 What I Built 📚 KYC Onboarding Specification — a 57-page technical docs site covering: 🖥️ 9-screen mobile-first user journey — from mobile OTP to eSign in ~6 minutes 🔌 25+ vendor integrations — Decentro, Digio, HyperVerge, Leegality, TrackWizz, and more 🏭 8 parallel batch pipelines — KRA, CKYC, NSE, BSE, MCX, CDSL,