Bang Motion（宣传动态图形） 是做什么的？
Agent skill for browser motion graphics — openers, promos, product demos, kinetic typography.
浏览器动态图形技能：片头、宣传、产品演示、动能字效——单个 index.html 像视频一样播，不是幻灯片。
Launch Video 第 2 步：用片头/宣传动效抛光演示成片——动能字、bumpers、产品能量，无需重型剪辑器。
npx skills add bangtutorial/bang-motionAgent skill for browser motion graphics — openers, promos, product demos, kinetic typography.
Extract frames or short clips from videos using ffmpeg.
Summarize or transcribe URLs, YouTube/videos, podcasts, articles, transcripts, PDFs, and local files.
Use when you have a spec or requirements for a multi-step task, before touching code
Use when implementation is complete, all tests pass, and you need to decide how to integrate the work
Use when executing implementation plans with independent tasks in the current session
Use when executing an implementation plan in the current session as the implementer yourself — your human partner chose inline execution, or no subagent tool is available