Banner Creator logo

Banner Creator

Community
minicoohei
banner-creator

各種SNS・広告プラットフォーム向けのバナー/クリエイティブを生成するスキル。 X, Facebook, Instagram, PRTimes, YouTube, LINE, Web広告に対応。 「バナーを作って」「広告画像を生成」「SNS用の画像」「クリエイティブ制作」等のリクエストで発動。

Overview

Publisherminicoohei
Repositoryai-agent-camp
Skill namebanner-creator
Stars
346
Forks
13
Bundled files
4
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • 4 bundled files

    Scripts, templates, and references the model can read while it works. Files are read-only and never executed.

  • Open source

    Published by minicoohei on GitHub. Read the source before you install it.

Installation

Install the Banner Creator AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/minicoohei/ai-agent-camp/tree/main/.claude/skills/banner-creator
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/minicoohei/ai-agent-camp.git /tmp/ai-agent-camp
mkdir -p .claude/skills
cp -r /tmp/ai-agent-camp/.claude/skills/banner-creator .claude/skills/banner-creator
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Banner Creator in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Banner Creator on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Banner Creator is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Banner Creator - 広告バナー/クリエイティブ生成

各種SNS・広告プラットフォーム向けのバナー/クリエイティブを生成します。

機能

  1. プラットフォーム別プリセット: X, Facebook, Instagram, PRタイムズ, YouTube, LINE, Web広告
  2. トーン・スタイル設定: プロフェッショナル、ポップ、エレガントなど
  3. 参考画像検索: キーワードからWeb検索で参考画像を取得
  4. コピーテキスト生成: 投稿文・ハッシュタグ・CTAを同時生成

プラットフォーム別サイズ

PlatformSizeAspect Ratio
x_post1200x67516:9
x_card800x4181.91:1
facebook1200x6301.91:1
facebook_story1080x19209:16
instagram_feed1080x10801:1
instagram_story1080x19209:16
prtimes1200x6301.91:1
youtube1280x72016:9
line1040x10401:1
web_horizontal1200x6281.91:1
web_vertical300x6001:2

Usage

bash
# Basic usage
python scripts/banner_creator.py --platform x_post --message "キャッチコピー"

# With copy text generation
python scripts/banner_creator.py --platform instagram_feed --message "新商品発売" --with-copy

# With reference image search
python scripts/banner_creator.py --platform facebook --message "セール" --search-ref "EC セール バナー"

# Full options
python scripts/banner_creator.py \
  --platform x_post \
  --message "メインメッセージ" \
  --sub-copy "サブコピー" \
  --cta "今すぐ登録" \
  --tone professional \
  --color-scheme cool \
  --font-style bold \
  --priority ctr \
  --brand-name "会社名" \
  --session "campaign_name" \
  --with-copy \
  --variants 3

Parameters

ParameterRequiredDefaultDescription
--platformYes-Target platform (see table above)
--messageYes-Main headline/catchphrase
--sub-copyNo-Sub-headline or details
--ctaNo-Call-to-action text
--toneNoprofessionalTone: professional, casual, pop, elegant, urgent, minimal, tech, natural
--color-schemeNoautoColor: warm, cool, mono, pastel, vivid, dark, or HEX code
--font-styleNoautoFont: gothic, mincho, handwritten, bold, script, geometric
--priorityNoctrFocus: ctr, brand, info, emotion, product, event
--brand-nameNo-Brand/company name to display
--referenceNo-Local path or URL to reference image
--search-refNo-Keywords to search for reference images
--sessionNo-Session name for organizing output
--with-copyNofalseGenerate copy text along with image
--variantsNo1Number of variations to generate
--outputNoautoOutput file path

Output

  • Image: docs/generated/banners/{date}_{session}/{filename}.png
  • Copy text (when --with-copy): Saved as {filename}_copy.md
    • 3 post text variations
    • Hashtag suggestions
    • CTA phrases

Examples

X Post Banner

bash
python scripts/banner_creator.py \
  --platform x_post \
  --message "AI時代の働き方改革" \
  --sub-copy "無料ウェビナー開催" \
  --cta "今すぐ登録" \
  --tone professional \
  --with-copy

Instagram Feed with Reference Search

bash
python scripts/banner_creator.py \
  --platform instagram_feed \
  --message "Summer Collection" \
  --tone pop \
  --color-scheme vivid \
  --search-ref "fashion summer sale instagram"

PRTimes Press Release Image

bash
python scripts/banner_creator.py \
  --platform prtimes \
  --message "新サービスリリースのお知らせ" \
  --brand-name "株式会社〇〇" \
  --tone professional \
  --priority info

Requirements

  • GEMINI_API_KEY or GOOGLE_API_KEY in environment
  • Python packages: google-genai, Pillow, python-dotenv, requests

Overview

各種SNS・広告プラットフォーム(X, Facebook, Instagram, PRTimes, YouTube, LINE, Web広告)向けのバナー/クリエイティブを、Gemini Image Generation APIで自動生成するスキルです。プラットフォーム別プリセット、参考画像検索、コピーテキスト同時生成に対応。

Troubleshooting

エラー解決方法
API key not foundGEMINI_API_KEY または GOOGLE_API_KEY を環境変数に設定
Image generation failedGemini API のレート制限の可能性。数秒待ってリトライ
Unknown platform--platform に正しいプリセット名を指定(x_post, instagram_feed 等)

Success Criteria

  • 指定プラットフォームの正しいサイズで画像が生成されている
  • 出力ファイルが docs/generated/banners/ 以下に保存されている
  • --with-copy 指定時にコピーテキスト .md ファイルも生成されている

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Banner Creator AI skill do?

各種SNS・広告プラットフォーム向けのバナー/クリエイティブを生成するスキル。 X, Facebook, Instagram, PRTimes, YouTube, LINE, Web広告に対応。 「バナーを作って」「広告画像を生成」「SNS用の画像」「クリエイティブ制作」等のリクエストで発動。

Why use Banner Creator on TypingMind?

Because you install it once and use it with any model. Banner Creator is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Banner Creator in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/minicoohei/ai-agent-camp/tree/main/.claude/skills/banner-creator. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Banner Creator?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Banner Creator?

As many as you like. As long as a model supports skills, you can use Banner Creator with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Banner Creator AI skill free?

It is published on GitHub by minicoohei. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

View all

Set up your own AI workspace now

Get notified about new features and future giveaways by subscribing to our newsletter 👇