Which Agent Frameworks Actually Enforce Tool Approval?
Any useful agent framework tool approval comparison has to start with the question the feature checklists quietly skip: not does the framework support human-in-the-loop, but where does the approval check physically execute — and what happens the day a second client calls the same tool. Every major framework ticks the "supports HITL" box, and every one of them ships a real mechanism. They differ on one property that decides your architecture: the location of the enforcement point. This post maps that property precisely, framework by framework, and shows the row that sits somewhere structurally different — on the tool itself.