Skills (markdown-viewer) for Codex

Opinionated skills for AI coding agents to create stunning diagrams and visualizations directly in Markdown. These skills extend agent capabilities across diagram generation, data visualization, and technical documentation.

How to install Skills (markdown-viewer) in Codex

In Codex, ask the built-in skill installer for it:

Type this in Codex: $skill-installer is the skill installer built into Codex, and it downloads the skill from GitHub. Restart Codex if the skill doesn't show up. Check the repo README for any setup the skill needs. Source: Codex skills docs.

Or copy the skill folder (the one with SKILL.md) into ~/.agents/skills to use it in every project, or into .agents/skills in a repo to share it with that repo. Codex picks up new skills automatically. (where Codex loads skills)

What it contains

About this listing

Skills (markdown-viewer) is a community collection of agent skills on GitHub by markdown-viewer: folders with a SKILL.md file, the format Codex loads skills from. Its README mentions Codex. It passed the CodexStacks quality filter for skills (at least 100 stars, pushed in the last 90 days, not a fork or a list, and at least one SKILL.md with a name and description). OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 29, 2026 (an install and load check, not a code review). From its files we found 1 skill. It's one of 32 listings in the Data & Analytics category (category assigned by CodexStacks from the repo's topics and description). It also appears in best Codex plugins for data and databases.

Skills (markdown-viewer) FAQ

Details

Type

Skill

Category

Data & Analytics (assigned by us)

Source

Community

Author

markdown-viewer

License

CC-BY-4.0

GitHub stars

3,383 (at last sync)

Last push

2026-10-05

Source

https://github.com/markdown-viewer/skills

Listed via

GitHub search: Codex skills (SKILL.md)

Install check by CodexStacks

Passed on Oct 29, 2026 with Codex CLI 0.163.0: Codex loaded its skills. proof · how we check

Something wrong or missing? Submit or improve this listing. Listings also refresh automatically every night.

For maintainers: badge and embeds

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Markdown

HTML

Embed card (static HTML and inline CSS, no JavaScript). Preview:

Markdown summary

More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.

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