>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3538800. --> Reported by: [d34dman](https://www.drupal.org/user/751698) >>> <ul> <li>Workflow nodes themselves may not need separate entities initially; store them as JSON in the <code>definition</code> field of <code>Workflow</code> entity.</li> <li>Design JSON structure to support: <ul> <li>Unique node ID within workflow</li> <li>Node type reference</li> <li>Configuration array (validated against <code>NodeType.config_schema</code>)</li> <li>Connection edges for input/output mapping</li> </ul> </li> <li>Plan for future migration to standalone entity if runtime or revisions require relational storage.</li> </ul>