>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3266008. --> Reported by: [larowlan](https://www.drupal.org/user/395439) Related to !1 >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>Wondering if you could auto-discover classes in a compiler pass by looking for annotations, and hence avoid needing to declare a service.</p> <h4 id="summary-steps-reproduce">Steps to reproduce</h4> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <h3 id="summary-ui-changes">User interface changes</h3> <h3 id="summary-api-changes">API changes</h3> <h3 id="summary-data-model-changes">Data model changes</h3>