On October 11, creator Shohei Ohtaki posted on X: 「AIへの指示用に、"動画のカメラワークと切り替えの名前" をまとめました!」 (I put together the names of camera moves and transitions in video, for instructing AI!). The post drew 12,900 bookmarks and more than 430,000 views. Four days later Ohtaki released motion-prompt, which collects names like these alongside moving examples. The launch post reached 300,000 views and 4,884 bookmarks. The GitHub repo has 707 stars (as of October 26).
The reason for the dictionary is a remark from an unnamed person that Ohtaki quotes in the README: "what had been holding them back was not a lack of imagination. It was not knowing what this kind of movement is called."
Blogger Nagi gave Claude Sonnet the same request twice without a motion name and twice with one, then wrote about the results: 「一語を知っているかどうかで、ガチャが注文に変わる。」 (Knowing a single word turns a gacha pull into an order.)
It now has 168 entries in seven sets: 48 motion graphics moves (two sets), 24 camera moves and transitions, 24 UI component names, 48 landing page and web effects (two sets), and 24 photo looks, lighting setups, and art styles. It launched on October 15 with 120, kept adding sets, and on October 24 Ohtaki announced it had reached 168. It's free and released under the MIT license, so commercial use is allowed.
Each name comes with a moving example, a one-line definition, a sample prompt to hand the AI, and timing values. Install it as a skill, and the AI turns the example's motion and timing into code or prompts that fit how your project makes video (Remotion, CSS, After Effects, prompts for video generation models, and so on).
