# Banner Creator (agent skill)

> Banner Creator is an agent skill (a SKILL.md file) from ReScienceLab/opc-skills. Create banners using AI image generation. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 1,843 GitHub stars across a repository of 2 listed skills.

Create banners using AI image generation. Discuss format/style, generate variations, iterate with user feedback, crop to target ratio. Use when user wants to create a banner, header, hero image, cover image, GitHub banner, Twitter header, or readme banner. Create professional banners through AI image generation with an iterative design process.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/ReScienceLab/opc-skills |
| Skill path | skills/banner-creator/SKILL.md |
| Skill name | banner-creator |
| GitHub stars | 1,843 |
| Installs on skills.sh | not listed |
| License | Apache-2.0 |
| Skills in repo | 2 |
| Plugin marketplace | opc-skills |
| Official | no |
| Works with | Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode |
| Category | Docs & writing |
| Last commit | Oct 6, 2026 |

## When it triggers

- Use when user wants to create a banner, header, hero image, cover image, GitHub banner, Twitter header, or readme banner.

## Add this skill

### Claude Code

```sh
/plugin marketplace add ReScienceLab/opc-skills
/plugin install banner-creator@opc-skills
```

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/ReScienceLab/opc-skills.git
cp -r opc-skills/skills/banner-creator .agents/skills/banner-creator   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/ReScienceLab/opc-skills.git
cp -r opc-skills/skills/banner-creator .cursor/skills/banner-creator   # 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

---

Canonical page: https://appsgit.com/skills/resciencelab-banner-creator
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