# Hallmark (agent skill)

> Hallmark is an agent skill (a SKILL.md file) from Nutlope/hallmark. Anti-AI-slop design skill for greenfield pages, audits, redesigns, and design extraction from URLs or screenshots. It works with Claude Code, Codex and Cursor and has 29,703 GitHub stars. Install it by copying the skill folder into your agent's skills directory.

Anti-AI-slop design skill for greenfield pages, audits, redesigns, and design extraction from URLs or screenshots. Use when the user asks to build a new app or landing page, wants to redesign something, invokes Hallmark by name, or uses audit/redesign/study. A design skill for AI coding assistants. Makes the UIs they generate look made, not generated.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Nutlope/hallmark |
| Skill path | skills/hallmark/SKILL.md |
| Skill name | hallmark |
| GitHub stars | 29,703 |
| Installs on skills.sh | 59,912 |
| License | MIT |
| Skills in repo | 1 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code, Codex, Cursor |
| Category | Design & frontend |
| Last commit | Aug 6, 2026 |

## When it triggers

- Use when the user asks to build a new app or landing page, wants to redesign something, invokes Hallmark by name, or uses audit/redesign/study.

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/Nutlope/hallmark.git
cp -r hallmark/skills/hallmark ~/.claude/skills/hallmark   # personal, or .claude/skills in a project
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/Nutlope/hallmark.git
cp -r hallmark/skills/hallmark .agents/skills/hallmark   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/Nutlope/hallmark.git
cp -r hallmark/skills/hallmark .cursor/skills/hallmark   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

skills.sh listing: https://www.skills.sh/Nutlope/hallmark/hallmark

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