khazix-writer 是做什么的？
A WeChat public account long-form writing skill for Khazix (digital life Khazix). Use it when the user needs to write a WeChat article, draft content, continue writing, or produce a long piece from provided materials. Trigger words include but are not limited to: write an article, draft, help me write, continue writing, expand, WeChat article, long form, produce a draft, write in my style. Even if the user just says 'turn this into an article' or 'write it in my style,' as long as the context involves content creation and WeChat output, this skill should be activated. It also applies when a user provides a PDF, brief, news link, voice-to-text transcript, or any other material and says 'help me write an article.' Do not use this for short-form content (Xiaohongshu posts, tweets, Moments) or pure headline/summary generation (use the wechat-title skill for that).