How to use the Minimal Zine Poster Generator agent skill

What the skill makes the agent do

Once installed, the agent turns your input into a minimalist paper-style poster. The skill asks for roughly 70% to 90% negative space, one small collage or focal element, experimental typography and one clear colour accent, on an aged paper-style canvas that defaults to a 3:5 ratio.

The agent returns both a detailed image-generation prompt and the generated image. It can also study reference images to extract reusable style rules, and when you supply a photo to be edited into a poster it tries to keep the subject recognisable.

• Generate mode (default): theme or photo to prompt to generated image to inspection.
• Photo Input mode: your photo is treated as an edit target, reference image or supporting insert, with a stated preservation level.
• Reference Analysis mode: extracts style rules from supplied images without generating anything.
• Prompt-only mode: used only when you explicitly ask for a prompt and no image.

Install the skill from the ZIP

Download the ZIP from this page and unzip it. The package contains SKILL.md, README.md, README.ja.md and README.zh-CN.md. Then place the folder in one of two locations:

For a personal install, put it in ~/.claude/skills/. For a single project, put it in the project's .claude/skills/ folder. Alternatively, in the Claude apps you can upload the skill under Settings → Capabilities → Skills.

• Personal: ~/.claude/skills/gc-minimal-zine-poster-v0-3/
• Project: .claude/skills/gc-minimal-zine-poster-v0-3/
• Claude apps: Settings → Capabilities → Skills (upload)

Check that your agent has an image-generation tool

The skill does not generate pictures on its own. It relies on a built-in image-generation tool in your agent environment to produce the final raster image. The files do not name a specific provider, so check your environment's documentation for what image generation it offers.

Without such a tool, the agent can still run Prompt-only or Reference Analysis work, since those modes do not need a generated image.

Trigger the skill with natural requests

The skill description lists the kinds of input it handles: a theme, sentence, article, mood, object, photo, content brief, reference images or an image folder. You do not need a special command. Describe what you want in plain language and mention the poster.

If you write a request like 'make a poster', the skill treats it as Generate mode and makes its own choices rather than stopping to ask. Say so explicitly if you only want a prompt, or if you want analysis of references first.

• Make a poster about the feeling of a rainy train platform.
• Turn this photo of my cat into a sparse zine poster, keep the cat recognisable.
• Analyse these reference images and extract the style rules, don't generate anything yet.
• Write only the image prompt for a poster about late-night bakeries, no image.

Work with photos and reference images

When a supplied photo should affect the output, the agent assigns it one role: edit target (the photo or its subject must appear), reference image (only style, colour, composition or mood is borrowed) or supporting insert (one element from the photo goes into a new composition). Say which you mean if it is not obvious. Wording such as 'make this photo into a poster' suggests an edit target, and a photo with only 'make one' is treated as an edit target.

For identifiable people, pets, characters, artworks and products, the skill defaults to high preservation, which keeps identity and defining details fixed unless you explicitly permit changes. Tell the agent what may change if you want reinterpretation.

Tips for better results

Keep any text you want on the poster short. The skill warns that image models distort long text, and it avoids dense copy. Choose one central idea rather than a whole article, because the skill reduces content to one imageable relation.

For a series, ask for a shared visual style. The skill's variation approach changes visual grammar such as layout family, texture and accent hue, so you can get varied posters that stay in one visual family.

• Give one clear subject or moment rather than a whole argument.
• Ask for text only if you need it, and keep it brief.
• For series work, run Reference Analysis first on a set of examples, then generate from the extracted rules.
• If a result drifts from a photo's subject, ask for tighter preservation and fewer permitted changes.

Safety notes: scripts and network

According to the skill's listing, it does not run scripts and does not use the network. Its instructions cover prompt writing, image inspection and quality checks; the image itself is produced by the agent's built-in image-generation tool, so your data goes wherever that tool sends it.

Be careful with photos of real people, pets or products. Keep the preservation rules in mind, since they may still drift, and avoid reproducing identifiable people or branded products in ways you have not clearly permitted.