wjs-overlaying-video
在单一项目里完成所有后期叠加，避免多次转码与质量损耗。
为视频添加封面、字幕、动效、插画等时序叠加并一次性渲染。
给视频加封面、按 SRT 同步的 HTML/CSS 字幕、动效插画、章节片段和 end-card CTA，并用 HyperFrames 把所有素材合并成一次最终编码，避免多次转码带来的质量损失。常作为分段裁剪后的后期步骤，输出可直接上传的 MP4。
▸ 展开 SKILL.md 英文原文
Use when the user has one or more video clips and wants to add post-production on top — AI-generated cover as first frame, HTML/CSS captions synced to SRT, kinetic illustration overlays at hook moments, chapter chips, end-card CTA, or any other timed motion graphics. Most often used as the downstream of `/wjs-segmenting-video` — pick up where that skill stopped (raw cropped clip + per-clip SRT) and produce the upload-ready MP4. Backed by HyperFrames so everything compiles to ONE final encode — no cascade of re-encodes. Triggers — "加封面", "加字幕", "加动画", "加 CTA", "做后期", "post-production", "title card", "kinetic captions", "end card".
帮我安装这个 skill：https://raw.githubusercontent.com/jianshuo/claude-skills/main/wjs-overlaying-video/SKILL.mdcurl -fsSL "https://raw.githubusercontent.com/jianshuo/claude-skills/main/wjs-overlaying-video/SKILL.md"# wjs-overlaying-video Post-production for a video clip: cover, captions, illustrations, CTA, custom motion graphics — all composed in ONE HyperFrames project and rendered in a SINGLE final encode. No cascade of decodes/re-encodes (each cascade pass degrades quality and burns time). ## When to use - **Downstream of `/wjs-segmenting-video`** — the segmentation skill hands you cropped clips + per-clip SRTs; this skill turns them into upload-ready MP4s with cover/captions/illustrations/CTA. - User has a finished video and wants to dress it up with motion graphics: opening hook, key-quote callout, closing slogan, chapter cards, AI-generated cover as first frame. - User wants HTML/CSS-