Stop a durable client execution
Cancel the specified execution without starting a replacement. For a native agent, pending inputs become not applied; for a Claude Managed agent, the hosted session is interrupted and stays resumable. Requires the exact visitor and session bound to the conversation.
Path parameters
Headers
The browser’s anonymous visitor secret (cvt_…) returned by /client/init. It is what scopes the request to one visitor’s own conversations, so a request without it is refused. Sent as a header so it never lands in access logs or Referer.
Optional fresh hosted end-user identity proof. When admitted and already bound to the presented visitor, expands the request from this exact browser to sibling visitors for the same verified person. Without it, even a previously bound visitor remains exact-browser scoped.