Remotion

Remotion is a framework for making real MP4 videos in React, so the code is the source of truth. Install it in any coding agent (Claude Code, Codex), then describe the video you want in a prompt. The agent writes React that renders to an MP4. Remotion's Agent Skills inject best practices into the agent, and Remotion Studio lets you make drag-and-drop tweaks that save back to code.

Remotion is good for animated charts, Venn diagrams, web graphics, and launch videos. The Anthropic team has used it to announce features and to animate slides from conference talks. The best prompting move is to hand the agent an inspiration image first with minimal instructions, then iterate. Front-loading detail just invites misinterpretation. Feed it real data if you want accurate charts. Expect more effort for complex hand-drawn or arrow-heavy designs. The agent can't ingest a video directly (it pulls frames with FFmpeg to reference a clip), and polished results still assume you know the tools and can spend real time. Note Remotion's license, which requires a company license in some cases.