>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3538829. --> Reported by: [d34dman](https://www.drupal.org/user/751698) >>> <ul> <li>Implement a compiler that transforms the workflow entity + node connections into a directed acyclic graph (DAG).</li> <li>Validate that there are no circular dependencies.</li> <li>Produce an internal execution plan array containing: <ul> <li>Node IDs with their processor plugin IDs.</li> <li>Input and output mappings for data passing.</li> <li>Execution order for synchronous workflows.</li> </ul> </li> </ul>