Codex skills for video and images

Where Codex looks for skills

A skill is a folder with a SKILL.md file: a short header with its name and description, then instructions, and any scripts it needs. It's an open format, published at agentskills.io, so the same folder can work in several agents. Our guide to what agent skills are explains it in full.

• Codex comes with two skills of its own: $skill-creator writes a new skill, and $skill-installer installs curated ones.
• Only name and description are documented as SKILL.md fields. Codex's own extras go in an optional agents/openai.yaml file, such as turning off automatic use.
• The list of skills Codex keeps in mind is capped at about 2% of its context, so a very long description can push others out.
• Older guides say ~/.codex/skills. OpenAI's page now names ~/.agents/skills. Codex's source still reads the old folder for backward compatibility, but the docs don't promise it.

One skill, three agents: what differs

Only name and description are read by all three, and the standard says name must match the folder's name. Extra fields one agent knows are ignored by the others.

Install a free video skill in Codex

Here with Kinetic Type Title, which turns a line of text into an animated title video. It renders on your computer with HyperFrames, so it needs Node.js 22 or later and FFmpeg, and it has no cost per video.

mkdir -p ~/.agents/skills
curl -L -o kinetic-type-title.zip https://glidezo.com/media/skills/free/kinetic-type-title-v2.zip
unzip kinetic-type-title.zip -d ~/.agents/skills

Then start a new Codex session and ask for what the skill makes, for example "make a title video that says Ideas that move". Every free skill is also on GitHub, so you can clone the repo instead.

What we tested in Codex

We installed our free Kinetic Type Title skill in a project's .agents/skills folder and asked the Codex CLI (version 0.158.0, on a ChatGPT plan) for a title video that says "Made in Codex", without naming the skill. Codex found it, read its SKILL.md, wrote the settings file and ran the skill's script. The whole task took just under 2 minutes, and the video above is the file it made, not retouched. One run, on Linux: we haven't tested every skill in Codex.

What these skills can't do

• The free downloads make video and images with code: titles, captions, charts, promos, cards. They don't make realistic AI footage or photos.
• Our AI skills, such as Virtual Staging and Product in Scene Ad, run on this site for credits and don't download yet.
• They need Node.js and FFmpeg on your computer, and the first render downloads HyperFrames' own browser.

To write your own, our free video skill creator makes a valid SKILL.md from a short form. For other agents: Claude Code skills and Cursor skills.