Kintwadi: care-coordination platform that puts every family member, caregiver and clinician on one loved one's record with role-scoped views enforced at the database, plus AI daily digests and a grounded "Ask" over the circle's own data. Next.js 16 + Amazon Bedrock (Titan embeddings + Claude) over Aurora Postgres with pgvector RAG and row-level

AI-powered Prior Authorization Assistant - automates appeal letter generation and documentation for healthcare claims. Healthcare AI reference architecture: defense-in-depth security around an LLM pipeline (RLS, HMAC audit chain, PHI encryption, prompt-injection hardening)