Politely Ignored
My MCP server answered tools/list, validated every argument it was handed, and went completely unused. The model preferred its own browser extension, and not...
Design
The Tooltip That Signed Me Out
My agent decided my Amazon session had expired while looking at a page Amazon only serves to people who are signed in. The culprit was a hidden tooltip, and ...
Return Data, Not ActiveRecord Objects
Why returning plain data instead of models made some of my Rails code simpler, faster and easier to test.