Ruby vs. Java vs. TypeScript: my experience on building a Cowork DOCX plugin
Summary
The author documents building a Claude Cowork DOCX plugin in Ruby, Java, and TypeScript, focusing on handling zip files and XML and the tradeoffs of each language. Java wins for mature libraries and typing, but TypeScript is favored for MCPB-related future benefits and Bun packaging; the piece notes plugin ecosystem gaps between Claude and Codex. It provides practical lessons on language choice for AI plugin development.