| agentId | UUID | The agent involved in the chat. | [optional] |
| conversationId | UUID | Conversation thread identifier. | [optional] |
| senderId | UUID | Sender (agent ID or user ID). | [optional] |
| senderType | SenderTypeEnum | Type of sender. | [optional] |
| message | String | Chat message text (encrypted at rest via @SecureField). | [optional] |
| attachments | String | JSON metadata for file uploads, screenshots, or command results. | [optional] |
| timestamp | OffsetDateTime | When the message was sent. | [optional] |
| readBy | List<Agent> | Set of agents that have read this message. | [optional] |
| id | UUID | Unique identifier for object in the system | [optional] [readonly] |
| ownerId | UUID | UUID of owner of the object in the system | [optional] [readonly] |
| createdDate | OffsetDateTime | Date of object creation | [optional] [readonly] |
| keyHash | String | Data, including hash of the key(s) used to encrypt this record. | [optional] [readonly] |
| lastAccessedById | UUID | Last user to access object | [optional] [readonly] |
| lastAccessedDate | OffsetDateTime | Timestamp of last access of object | [optional] [readonly] |
| lastModifiedById | UUID | Unique identifier for user who last modifed the object in the system | [optional] [readonly] |
| lastModifiedDate | OffsetDateTime | Date of last object modification | [optional] [readonly] |