The App base class uses _registry (WeakSet) for DOM node tracking. Our _registry attribute for the tool registry was shadowing it with None, causing a TypeError during shutdown. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The App base class uses _registry (WeakSet) for DOM node tracking. Our _registry attribute for the tool registry was shadowing it with None, causing a TypeError during shutdown. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>