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Agent skill

Codex

by bergside in bergside/awesome-design-skills

A radically minimal, blank-canvas interface built as a pure edge-to-edge surface, with almost no color and typography carrying the visual weight.

MITAuto-check passedFrontend & Design

Install Codex

skills CLI
$ npx skills add bergside/awesome-design-skills --skill codex -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install bergside/awesome-design-skills codex --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/bergside/awesome-design-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/codex .claude/skills/codex && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
codex
GitHub stars
3.1k
Used in
1 other repo
Token cost
~1k tokens
SKILL.md length
455 words
Files
2
Skills in repo
67
Repo updated
First seen
Licence
MIT

At a glance

A radically minimal, blank-canvas interface built as a pure edge-to-edge surface, with almost no color and typography carrying the visual weight.

  • Works in 6 steps: Restate the design intent in one… → Define tokens and foundational… → Specify component anatomy, states,… → …
  • Tasks that involve Typography
  • SKILL.md covers Mission, Brand, Style Foundations and Accessibility, plus 9 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Codex is an agent skill from bergside/awesome-design-skills. 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.

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `DESIGN.md`).

It sits in Frontend & Design, covering Typography. The repository describes itself as: List of 67 awesome DESIGN.md and SKILL.md design skill files for agentic tools like Claude Design, Google Stitch, Codex, Cursor, and other AI tools. The licence is MIT.

When your agent uses it

  • Tasks that involve Typography

Example prompts

  • “/codex”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Restate the design intent in one sentence before proposing rules.
  2. Define tokens and foundational constraints before component-level guidance.
  3. Specify component anatomy, states, variants, and interaction behavior.
  4. Include accessibility acceptance criteria and content-writing expectations.
  5. Add anti-patterns and migration notes for existing inconsistent UI.
  6. End with a QA checklist that can be executed in code review.

What it can do on your machine

Read from SKILL.md and the folder at commit f631a09. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Codex loads about 1k tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 455 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~60
When it runs · the whole SKILL.md, loaded when a task matches
~1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from bergside/awesome-design-skills at commit f631a09, republished under its MIT licence (© bergside). 455 words, ~1,013 tokens.

Download SKILL.mdSave it as .claude/skills/codex/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
codex
description
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.
metadata.author
typeui.sh
<!-- TYPEUI_SH_MANAGED_START -->

Open Design System Skill (Universal)

Mission

You are an expert design-system guideline author for Codex. Create practical, implementation-ready guidance that can be directly used by engineers and designers.

Brand

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 for cards layered above the page. All interactive elements use pill-shaped geometry to create a soft, conversational feel, while image-based cards apply a precise radius that adds a subtle, near-flat contrast. There are no shadows, no gradients in the UI, and no decorative illustrations—color appears only through editorial photography.

Style Foundations

  • Visual style: modern, minimal, clean
  • Typography scale: 12/14/16/20/24/32 | Fonts: primary=Open Sans, display=Open Sans, mono=JetBrains Mono | weights=100, 200, 300, 400, 500, 600, 700, 800, 900
  • Color palette: primary, secondary, neutral, success, warning, danger | Tokens: primary=#000000, secondary=#ffffff, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#111827
  • Spacing scale: 4/8/12/16/24/32

Accessibility

WCAG 2.2 AA, keyboard-first interactions, visible focus states

Writing Tone

concise, confident, helpful

Rules: Do

  • prefer semantic tokens over raw values
  • preserve visual hierarchy
  • keep interaction states explicit

Rules: Don't

  • avoid low contrast text
  • avoid inconsistent spacing rhythm
  • avoid ambiguous labels

Expected Behavior

  • Follow the foundations first, then component consistency.
  • When uncertain, prioritize accessibility and clarity over novelty.
  • Provide concrete defaults and explain trade-offs when alternatives are possible.
  • Keep guidance opinionated, concise, and implementation-focused.

Guideline Authoring Workflow

  1. Restate the design intent in one sentence before proposing rules.
  2. Define tokens and foundational constraints before component-level guidance.
  3. Specify component anatomy, states, variants, and interaction behavior.
  4. Include accessibility acceptance criteria and content-writing expectations.
  5. Add anti-patterns and migration notes for existing inconsistent UI.
  6. End with a QA checklist that can be executed in code review.
Show full SKILL.md (159 more words)Show less

Required Output Structure

When generating design-system guidance, use this structure:

  • Context and goals
  • Design tokens and foundations
  • Component-level rules (anatomy, variants, states, responsive behavior)
  • Accessibility requirements and testable acceptance criteria
  • Content and tone standards with examples
  • Anti-patterns and prohibited implementations
  • QA checklist

Component Rule Expectations

  • Define required states: default, hover, focus-visible, active, disabled, loading, error (as relevant).
  • Describe interaction behavior for keyboard, pointer, and touch.
  • State spacing, typography, and color-token usage explicitly.
  • Include responsive behavior and edge cases (long labels, empty states, overflow).

Quality Gates

  • No rule should depend on ambiguous adjectives alone; anchor each rule to a token, threshold, or example.
  • Every accessibility statement must be testable in implementation.
  • Prefer system consistency over one-off local optimizations.
  • Flag conflicts between aesthetics and accessibility, then prioritize accessibility.

Example Constraint Language

  • Use "must" for non-negotiable rules and "should" for recommendations.
  • Pair every do-rule with at least one concrete don't-example.
  • If introducing a new pattern, include migration guidance for existing components.
<!-- TYPEUI_SH_MANAGED_END -->

© bergside, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in skills/codex of bergside/awesome-design-skills.

  • SKILL.md
  • DESIGN.md

Open the folder on GitHubat commit f631a09

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in bergside/awesome-design-skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Codex next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Codex compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codex this skillbergside/awesome-design-skills3.1k1 repos~1kAutomated safety check: PassMIT
Impeccablebestofjs/bestofjs3.1k27 repos~2.6kAutomated safety check: PassMIT
Tailwindcss Developmentanonaddy/anonaddy4.9k10 repos~865Automated safety check: PassMIT
Design SystemOhh-889/skyroc79511 repos~1.7kAutomated safety check: PassMIT
Make Interfaces Feel Bettersamuelclay/NewsBlur7.6k10 repos~1.5kAutomated safety check: PassMIT
UI UX Pro Maxsaoudi-h/solar-icons18418 repos~11kAutomated safety check: NotesCustom licence

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Categories

Questions about Codex

What does Codex do?

A radically minimal, blank-canvas interface built as a pure edge-to-edge surface, with almost no color and typography carrying the visual weight. Codex is an agent skill from bergside/awesome-design-skills. A radically minimal, blank-canvas interface built as a pure edge-to-edge surface, with almost no color and typography carrying the visual weight.

When should I use Codex?

Codex fits situations like: tasks that involve Typography.

How do I install Codex in Claude Code?

Run `npx skills add bergside/awesome-design-skills --skill codex -a claude-code`. Or copy the skill folder (skills/codex in bergside/awesome-design-skills) into .claude/skills/codex in your project. Claude Code loads it when a task matches its description.

How do I install Codex in Codex?

Run `npx skills add bergside/awesome-design-skills --skill codex -a codex`. Or copy the skill folder (skills/codex in bergside/awesome-design-skills) into .agents/skills/codex in your project. Codex loads it when a task matches its description.

Can I use Codex in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add bergside/awesome-design-skills --skill codex -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codex, .gemini/skills/codex, .github/skills/codex and .opencode/skills/codex in your project.

What does Codex need to run?

SKILL.md names no scripts, command-line tools or credentials: Codex is instructions for the agent only.

Does Codex access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Codex safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Codex use?

Codex is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Codex use?

About 1k tokens (SKILL.md is roughly 4.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Codex?

Skills that share tags, products or a category with Codex: Impeccable (bestofjs/bestofjs, 3.1k stars), Tailwindcss Development (anonaddy/anonaddy, 4.9k stars), Design System (Ohh-889/skyroc, 795 stars) and Make Interfaces Feel Better (samuelclay/NewsBlur, 7.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codex?

bergside (a GitHub organization) maintains it in bergside/awesome-design-skills, which has 3,081 GitHub stars. The repository holds 67 skills in this directory. The repository was last updated on June 28, 2026.

Source: bergside/awesome-design-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.