Release Pin: Ship the Model, Prompt, and Tools as One Version
Cross-post of Insights #9 — canonical: https://sheikhwasim.com/insights/release-pin-one-version/ Your agent passed every check on Tuesday. On Thursday it was a different agent, and nobody shipped anything. The model alias you call quietly moved to a newer snapshot. Someone tightened a line of the prompt in a dashboard. A tool started returning one more field. Each change was small and reasonable. Together they changed what the agent does. Code teams solved this years ago: you don't deploy "what…