trunk-merge/pr-89410/864f07c1-41d9-46e5-94d4-a7a713dd5313 - #89650

Summary: 1 Safe | 0 Needs Review | 0 Blocked

✅ Safe

Brief or no lock, backwards compatible

posthog.1321_organization_read_only_mcp_access
  └─ #1 ✅ AddField
     Adding nullable field requires brief lock
     model: organization, field: read_only_mcp_access

📚 How to Deploy These Changes Safely

AddField:

This operation acquires a brief lock but doesn't rewrite the table.

Deployment uses lock timeouts with automatic retries, so lock contention will cause retries rather than connection pile-up.