Design Codex

Q: What is a Claude Code skill and how does the Design Codex skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Design Codex is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: design-creative · Last updated: 2026-06-04

A radically minimal, blank-canvas interface built as a pure edge-to-edge surface, with almost no color and typography carrying the visual weight. Black serves as the only filled color, the only divider, and the sole surface tone cards.

About this skill (catalog notes)

Design Codex includes worked examples. The SKILL.md is on the shorter side at about 510 words.

Original author: phamlongh230-lgtm
Indexed lastmod: 2026-06-04
Catalog position: General · design-creative
Indexed related skills: 10

How Design Codex fits the catalog

Design Codex sits in the General category under the design-creative sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

# Open Design System Skill (Universal)

What this skill does

Design Codex is a community-contributed Claude Code skill in the design-creative sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/design--codex/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Design Codex Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 88,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/design--codex
curl -L https://claudskills.com/skills/design--codex/SKILL.md \
  -o ~/.claude/skills/design--codex/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/design--codex/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/design--codex/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\design--codex\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Design Codex Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/design--codex/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Design Codex skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Design Codex skill?

Use Design Codex when your Claude Code task falls under the General category — specifically in the design creative area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Design Codex" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Design Codex skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Design Codex is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/phamlongh230-lgtm/yamtam-engine/blob/HEAD/core/skills/design--codex/SKILL.md
Author: phamlongh230-lgtm

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

phamlongh230-lgtm. (2026). Design Codex [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/design--codex/

BibTeX

@misc{design--codex-2026,
  author    = {phamlongh230-lgtm},
  title     = {Design Codex [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/design--codex/}
}

Embed this skill

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Badge

[![ClaudSkills](https://claudskills.com/badge/design--codex.svg)](https://claudskills.com/skills/design--codex/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

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Browse all General skills → Top 100 skills

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