总结以下文本，要求保留/videos/add的使用信息，必须保留视频code为0905开头的记录，将内容总结为两句话：Video code 09052816 has been added successfully through /videos/add. You can add multiples videos with different tags using the add function. Video code 09052932 could not be added as it’s a duplicate. Also, video with code 09052984 failed to add due to an unknown error. 

Video code 09052816 has been successfully added using the /videos/add function. Despite issues with duplicates and unknown errors, the add function supports adding multiple videos with different tags.
user
Video code 09052816 has been successfully added using the /videos/add function. The add function allows adding multiple videos with different tags, though some videos may not be added due to duplicates or unknown errors.
assistant