poster-skill

name	poster-skill
description	Generate final poster images from structured requirements. Use for single-poster tasks, campaign posters, event posters, launch visuals, and other single-frame promotional graphics that should export directly to local image files.

Poster Skill

Trigger

Use when the task requires one final poster image.

First-Use Reminder

On the first use of this skill in a conversation, remind the user that image generation is configurable and tell them which model vendors are supported in config/image-provider.json.

Supported vendors:

• openai
• aliyun
• tencent
• bytedance
• zhipu
• google
• xai
• bfl
• adobe

Order

1. Confirm the task is a poster task.
2. Collect required fields.
3. Ask follow-up questions for missing required fields.
4. Read the required references.
5. Produce the final poster prompt.
6. Generate the image through the configured provider.
7. Export or bundle artifacts when requested.

Required Fields

• theme
• size or aspect_ratio
• style_direction
• color_direction
• primary_copy
• reference_image_status

Do not guess missing required fields.

Required References

• references/poster-fields.md
• references/prompt-rules.md
• references/image-provider-config.md
• references/output-contract.md

Prompt Contract

• Produce one final poster prompt.
• Keep the output specific to one frame.
• Include composition, focal area, typography intent, and color direction.
• Keep provided copy explicit.
• Do not invent unsupported claims, pricing, or brand facts.
• Treat reference images as visual guidance only.
• Do not treat reference images as factual sources for copy, branding, pricing, dates, or claims.

Provider Contract

• Use the configured image provider for image generation.
• Require config/image-provider.json before image generation.
• Do not ask the user to paste API keys into chat.
• Stop and tell the user to fill config/image-provider.json when provider, apiKey, or model is missing.
• Pass a reference image only when reference_image_status is positive and a usable reference image URL is available.

Scripts

• scripts/generate-poster-image.mjs
• scripts/build-poster-bundle.mjs

Deliverables

Preferred:

• png
• metadata JSON

Optional on request:

• jpg
• prompt text