- Remove workerBusy promise chain (mutex) in src/index.ts: each StreamableHTTPServerTransport is stateless and per-request, so concurrent handling within a worker is safe. Eliminates request starvation when long page writes are in flight. - Raise the Hocuspocus safety timeout in collaboration.ts from 25 s to 120 s, giving large documents enough time to complete the Yjs sync phase before the hard abort fires. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>