Fast Agent Design
Fast Agent Design is an agent skill (a SKILL.md file) from evalstate/fast-agent. It is used to generate well-branded interfaces and assets for fast-agent, either for production or throwaway prototypes/mocks/etc. It works with Claude Code and Codex and has 3,929 GitHub stars.
github.com/evalstate/fast-agent/design/fast-agent-system (opens in a new tab)
- Design & frontend
- Actively maintained
Add this skill
Claude
Claude Code loads skills from ~/.claude/skills/ (all projects) or .claude/skills/ (one project):
git clone --depth 1 https://github.com/evalstate/fast-agent.git
cp -r fast-agent/design/fast-agent-system ~/.claude/skills/fast-agent-design # personal, or .claude/skills in a projectIn the Claude apps, zip the fast-agent-design folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/evalstate/fast-agent.git
cp -r fast-agent/design/fast-agent-system .agents/skills/fast-agent-design # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/evalstate/fast-agent.git
cp -r fast-agent/design/fast-agent-system .cursor/skills/fast-agent-design # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Use this skill to generate well-branded interfaces and assets for fast-agent, either for production or throwaway prototypes/mocks/etc. Contains essential design guidelines, colors, type, fonts, assets, and UI kit components for protoyping. Read the readme.md file within this skill, and explore the other available files. If creating visual artifacts (slides, mocks, throwaway prototypes, etc), copy assets out and create static HTML files for the user to view.
When it triggers
- Use this skill to generate well-branded interfaces and assets for fast-agent, either for production or throwaway prototypes/mocks/etc.
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What is the Fast Agent Design skill?
Fast Agent Design is an agent skill (a SKILL.md file) from evalstate/fast-agent. It is used to generate well-branded interfaces and assets for fast-agent, either for production or throwaway prototypes/mocks/etc. It works with Claude Code and Codex and has 3,929 GitHub stars. Its SKILL.md lives at github.com/evalstate/fast-agent/design/fast-agent-system.
How do I install the Fast Agent Design skill?
Copy the fast-agent-design folder (the one containing SKILL.md) into ~/.claude/skills/ for Claude Code, .agents/skills/ for Codex or .cursor/skills/ for Cursor. The agent picks it up automatically when a task matches its description.
Is the Fast Agent Design skill free?
Yes. The repository is open source under the Apache-2.0 license.
Is Fast Agent Design maintained?
The repository's most recent commit was on Oct 4, 2026. Its latest release is v0.10.41. appsgit only lists skills from repositories with a commit in the last six months.