Adding Gmail and HEY With Custom Ruby Tools
Read Gmail over IMAP and HEY through its CLI with custom RubyLLM tools, attached to a Nexo agent that stays read-only by construction, not by prompt.
Writing on software design, Ruby on Rails development, and AI convergence.
Where I share what I'm exploring in software development, Ruby on Rails, AI, and everything in between.
Moving Triage Rules Out of Ruby and Into a Skill
Move an email agent's triage policy from a Ruby heredoc into a Markdown skill, and why a skill adds instructions only and never widens what the agent can do.
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.
A First Agent That Reads One Inbox Over MCP
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.
Agent is Model plus Harness: Getting to Know Nexo
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.