Skill / heygen-com

Embedded Captions Codex Skill

Add captions or subtitles to an existing single-subject talking-head video without editing the footage. Use for plain verbatim captions, cinematic captions…

Docs reviewedChecked 2026-09-21Runtime not tested

What it adds

Add captions or subtitles to an existing single-subject talking-head video without editing the footage. Use for plain verbatim captions, cinematic captions…

media and content

Get set up

Run the install command below and pick Codex when the CLI asks which agent to install for.
Start a new Codex thread so the skill loads.

npx skills add https://github.com/heygen-com/hyperframes --skill embedded-captions

Review before running

Read the installation source

Before you install

Node.js, to run the skills CLI

Compatibility & limitations

SKILL.md format, readable by Codex

Cursor: SKILL.md format; not tested in Cursor.

This listing is based on source documentation. We have not installed or runtime-tested this asset.

Sources & provenance

Reviewed 2026-09-21. Source revision: main (mutable; commit not pinned).