MedChain update: Added category-based prompt versioning and deletion, improved Authority Gate with LLM justification and trace logging, persistent custom scenarios, async human approval via DB records, verified multi-agent workflow with MCP integrations, and enabled LangSmith tracing for observability.

Designed and developed MedChain, a blockchain-based platform ensuring drug authenticity, preventing counterfeit medicines, and improving pharmaceutical supply chain transparency. Integrated AI models to predict shortages, detect distribution anomalies, and enable smart inventory restocking with end-to-end tamper-proof traceability.