Worked on the openclaw/openclaw repository to enhance the robustness of the Media Understanding module by addressing stability issues related to malformed attachment inputs. Focused on code refactoring and error handling, the work introduced guard conditions in selectAttachments and formatDecisionSummary to prevent crashes when attachments were undefined or not arrays. This approach ensured safer downstream processing and more reliable user-facing behavior. Comprehensive unit tests were added using Jest to verify the effectiveness of these safeguards. The improvements were implemented in TypeScript and JavaScript, resulting in a more stable media understanding flow and reducing the risk of errors from unexpected input formats.