The Bahmni open-source hospital management system was began over nine years ago with a front end using AngularJS and an OpenMRS REST API. Rahul Ramesh wished to convert this to use a React + TypeScript front end with an HL7 FHIR API. In exploring how to do this modernization he used a structured prompting workflow of Research, Review, and Rebuild - together with Cline, Claude 3.5 Sonnet, Atlassian MCP server, and a filesystem MCP server. Changing a single control would normally take 3–6 days of manual effort, but with these tools was completed in under an hour at a cost of under $2.more…