Green Tests Are Not Evidence the Screens Work
bin/ci green has always been necessary and not sufficient. With AI coding, one session writes both the implementation and the test that checks it.
I'm Mario Alberto, a software engineer and entrepreneur based in Colima, México. I'm the creator of Rails MCP Server and former CTO/co-founder of Aoorora, where I architected a core banking platform in Ruby on Rails that enabled lending startups to build on modern, secure infrastructure. I spend my time at the intersection of Ruby on Rails and AI—building tools that help developers work smarter. When I'm not writing code, I'm documenting territory, popular culture, and memory through photography.
bin/ci green has always been necessary and not sufficient. With AI coding, one session writes both the implementation and the test that checks it.
Connect a Nexo agent to Apple Mail over MCP and triage an inbox read-only by construction, where a fail-closed allow-list makes send and delete impossible.
Building a read-only email triage agent with Nexo, the new Ruby AI agent harness, one capability at a time across a multi-post series.