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ChatGPT Image Prompt Skill for Posters, Diagrams, and Precise Edits

Prepare image prompts for posters, diagrams, and edits, with a Chinese translation and key assumptions. We verified ZIP installation and prompt output in a ChatGPT web workspace. The workflow is useful for exact poster wording, negative space, and constraints on image edits.

中文

Install in ChatGPT 网页工作区、Claude Code、Codex

Verified in a ChatGPT web workspace on November 15, 2026. Your ChatGPT workspace must expose Skills and allow uploads. This skill uses its bundled Markdown template and requires no terminal or API key.

  1. Take the entire `gpt-image-prompt-web/` directory from the pinned GitHub commit. Keep `SKILL.md` and `resources/prompt-templates.md` in the same relative locations. Include the upstream MIT `LICENSE` from the repository root.
  2. Zip that directory as one top-level `gpt-image-prompt-web/` folder. In ChatGPT on the web, open Plugins → Skills → Add skill → Upload from your computer.
  3. Select the ZIP, wait for the successful upload status, and choose Done. Confirm that `gpt image prompt web` appears under Installed.
  4. Open a new chat and ask ChatGPT to use `gpt-image-prompt-web`. Compare the result with the example. Send a separate image request if you want to generate the poster.

Example task

In a new chat, try this equivalent English version of the verified fictional poster request.

Use my installed gpt-image-prompt-web skill and its bundled template. Prepare a portrait poster for a fictional community book club with cream paper texture, one open book in the lower left, and space at the top. The poster must show the exact text “周六读书会” once. Include no date, signature, or logo. Return the English prompt, Chinese translation, and key assumptions. Do not generate the image yet. Say so if this chat cannot load the skill.

What to check

The verified Chinese run cited section 4.6 of `resources/prompt-templates.md` and returned an English prompt, Chinese translation, and key assumptions. The English prompt preserved “周六读书会” as the sole poster text and kept the portrait layout, lower-left book, and top negative space.

Original SKILL.md on GitHub · Updated

Frequently asked question

Does the skill call GPT Image to render the poster?

A compatible workspace with upload access can install the ZIP from Skills, then invoke it in a new chat. We verified the prompt workflow in ChatGPT on the web. To generate an image, submit the resulting prompt in a separate request.