rimochan-nyamuru-manga-forge skill
Claude Code writes the story, lays pages out as YAML panels and turns them into finished manga page PNGs.
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Why this level
- Runs shell scripts and `codex` image generation: spends plan limits and writes files into `out/`.
Install
- Works in
In your terminal, with SkillFoxx CLI
npx skillfoxx add skills/rimochan-nyamuru-manga-forgeDetects the agents on your machine, shows the access level and pins the version.
Other ways to install
Access and checks
How we reviewExtended accessThe tool runs code or makes network calls and only reads external data.
- Runs shell scripts and `codex` image generation: spends plan limits and writes files into `out/`.
This is third-party code. Review the repository files before installing.
What it does
The manga-forge skill turns a request such as "draw a five-page manga" into `page1.png`, `page2.png` and so on. Claude Code first invents the story and records the storyboard in the OMNY format: YAML with absolute panel coordinates on an A4 sheet, speech bubble shapes and background detail levels. Then `scripts/forge.sh` hands the storyboard and the OMAY drawing rules to `codex`, which generates pages one by one in a single session, so characters and style stay consistent across pages. `collect.sh` gathers the images in order, Claude Code reviews every page, and `deliver.sh` places the result in a chosen folder. The `-s` flag of `forge.sh` switches the art style, with one file per style in `styles/`.
Who it is for. Webcomic authors and illustrators who have a story and want draft pages faster than drawing by hand.
Good fit when
- There is an idea for 2–5 pages and you want to see it as finished sheets.
- The storyboard is already written in YAML and only needs drawing.
- The same story should be shown in watercolor, ink and other styles from `styles/`.
- Characters are drawn from your own references: up to three images through the `-r` flag.
Not a fit when
- There is no Codex subscription with image generation.
- You need exact lettering with no typos: bubble text is checked by eye.
- You work without a bash shell, for example in a plain chatbot.
Example request
Draw a five-page manga: on moving day an old letter falls out of a desk drawer. End it quietly and use the characters from `chars/`.Limitations
The `codex` CLI draws the pages and the skill only drives the process, so you need a logged-in account on a plan with image generation. OpenAI services are unavailable from Russia. Pages are made one after another, and ten pages take 10–20 minutes. Panel positions on a finished page may differ from the YAML coordinates because the model adjusts composition, so measure the result when exact placement matters. Windows needs Git Bash. The documentation, including the file of common pitfalls, is in Japanese. Code is MIT, the character Nyamurutan is CC BY 4.0.
How to disable. Delete the `~/.claude/skills/manga-forge` folder. Finished pages stay in `out/` and in the folder `deliver.sh` used, so delete them separately.
FAQ
How do I install manga-forge in Claude Code?
Clone the repository and copy the folder to `~/.claude/skills/manga-forge` for all projects or `.claude/skills/manga-forge` for one. Then ask for a manga in plain words.
What are OMNY and OMAY?
OMNY is a YAML storyboard format with panel coordinates, bubbles and background detail. OMAY holds the drawing rules sent to the generator together with the storyboard.
Can I try the skill without my own story?
Yes. `./scripts/forge.sh -n examples/sample-2page.omny.yaml` draws the two bundled sample pages into `out/sample-2page/`.
Why does it need codex?
It draws the pages: manga-forge calls it for image generation. Without a `codex` login no pages appear.
How long does drawing take?
Pages are drawn one by one: ten pages take 10–20 minutes. The two sample pages are enough for a first check.
Discussion
No questions or reviews yet.
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README in short
The repository grew out of the Nyamuru Manga Name Studio web editor, which supplies the OMNY format and OMAY rules. In `docs/pitfalls.md` the author collected mistakes from daily use: the generator announces a drawing without making it, a continuation grabs another session, panels land off their coordinates.
README badge
Original SKILL.md
--- name: manga-forge description: 自然言語の指示から複数ページの漫画を生成する。ストーリー設計→OMNY（漫画ネームYAML）へのコマ割り設計→画像生成AIでの作画→回収→検品までを一本で行う。「漫画を描いて」「Nページの漫画」「4コマ」「ストーリー漫画」などと言われたら発動する。 --- # manga-forge — 自然言語から漫画原稿を焼くスキル ユーザーの一言から、**完成した漫画ページのPNG**を出すところまでを担当する。 ``` ユーザーの指示 ↓ ① ストーリーを書く（このスキルの仕事） ↓ ② OMNY にコマ割りを設計する（このスキルの仕事・最重要） ↓ ③ scripts/forge.sh で焼く（作画は codex に委譲） ↓ ④ 回収（collect.sh） ↓ ⑤ 全ページを目で見て検品する（このスキルの仕事） ↓ ⑥ 納品（deliver.sh・ユーザー希望の場所へ） page1.png ... pageN.png ``` ## 🚨 作業前に必ず読むもの 1. **[`docs/pitfalls.md`](docs/pitfalls.md)** — ハマりどころ全集。**ここを読まずに始めると同じ穴に落ちる** 2. **[`prompts/ndm-v10.md`](prompts/ndm-v10.md)** — OMNY の書き方の全仕様（スキーマ・コマ割りパターン集・フキダシ9種）。**OMNYを書く前に必ず読む** 3. **[`omay/standard.omay.yaml`](omay/standard.omay.yaml)** — 作画側に渡す規則。中身を知っておくとネームの精度が上がる --- ## ① ストーリー - ページ数のデフォルトは **2〜5ページ**。指定があればそれに従う。10ページ程度までは一度に焼ける - 1ページ = **3〜6コマ**が目安 - 「◯ページ目」の区切りを立てて、**起承転結＋見せ場**（キメ台詞・感情の着地）を設計する - ユーザーの指定が薄いときは、直近の文脈・会話から題材を拾ってよい ## ② OMNY の設計（このスキルの本体） `prompts/ndm-v10.md` のスキーマに従って YAML を書く。要点： - コマ割りは **A4（210×297mm）基準の絶対座標**。id は右上→左下の読み順