Engineering investigations
Agent harness and modern stack
Newer kinds of trouble: out-of-date agent instructions, old and new versions running at once after a deploy, data leaking into pages, outside services going down, rounding errors, and screens that show a change before it is saved.
- Out-of-date agent instructionsPromptFinds instructions that send agents to files and patterns that no longer exist.
- Database changes during a deployPromptChecks that each database change works with the old code that is still live while a release finishes.
- Hidden data anyone can readPromptFinds data sent to the browser that the screen hides but anyone can read.
- When an outside service goes downPromptAsks what happens to the app when Google, the AI Gateway or a service that sends it updates goes down.
- Rounding and unit mix-upsPromptFinds money and percentage values that change scale or lose precision along the way.
- Screens showing a change that was refusedPromptFinds screens that show a change right away and keep showing it after the server refused it.