HyperFrames Keyframes for Codex: Create a Seek-Safe Zoom
Build a predictable zoom and inspect keyframe positions in HyperFrames. The archived Keyframes skill now has its maintained guidance in the main skill.
中文Setup for Codex (current HyperFrames replacement)
Codex, Node.js 22 or newer for the local HyperFrames CLI, and a disposable project. The separate hyperframes-keyframes skill was retired upstream. This example uses its maintained /hyperframes workflow.
- If the HyperFrames plugin is available in Codex, enable it. For a standalone setup, run `npx skills add heygen-com/hyperframes` in a scratch project, select hyperframes for Codex, and start a fresh session.
- Ask the agent to load /hyperframes and read `skills/hyperframes/references/motion.md` and `skills/hyperframes/references/runtimes.md` from the installed bundle or the upstream v0.9.53 tree. Use `npx hyperframes@0.9.53` for the pinned CLI when running the example's checks.
- For historical reading, the original GitHub source below preserves the standalone hyperframes-keyframes document from before the retirement.
Example task
Ask Codex for a 3-second shot with a centered blue square inside a fixed clip. Apply a linear inner-layer scale from 1.0 at 0.5 seconds to 1.2 at 1.5 seconds, then hold it. Inspect the three times 0.5, 1.0 and 1.5 seconds, then seek backward to 1.0 seconds.Expected result
The scale at those times is 1.0, 1.1 and 1.2, and seeking back yields 1.1 again. The clip remains on the same track and its visibility interval stays intact.
Upstream documentation
Original SKILL.md on GitHub · Apache-2.0 license · Source reviewed
Frequently asked question
Can I still use the old HyperFrames Keyframes install name?
The independent skill was retired. Use the main HyperFrames skill with motion and runtime references for seek-safe zooms and keyframes.