GarlicStamp: an open identity protocol for AI agents

If you've spent any time wiring AI agents into real systems — picking up tickets, executing trades, managing infrastructure, talking to APIs that cost real money — you've already run into the question nobody is answering well: How do you trust an agent you didn't build? There are partial answers. OAuth proves a human was involved at some point. An API key proves somebody held the key at signup. A model card tells you which weights are allegedly running. None of those answer the question that act