侍・日本刀 — Open Skill

侍・日本刀

刃に、心を。 侍と日本刀を、静けさで撮ります。抜かない緊張、鞘、手、光。 ・8拍構成 — 刀架、鞘、手、目、間、抜刀、光、納刀 ・刀を人より多く映します — 主役は刃と所作。抜刀は一度だけ、それ以外は静止 ・光 — 一方向の硬い光を刀身に斜めに当て、他はほぼ黒に落とします。夜明けは冷たい青、夕暮れは深い琥珀 ・音 — 息、衣擦れ、鞘の音、一音だけの金属音。音楽はほぼ入れません ・所作の符号 — 正座、黙礼、抜刀、納刀、懐紙、扇子 画面内の文字はすべて日本語です。グロ表現は扱いません。実在の歴史人物・流派は使用しません。オリジナル制作のみです。

@omegabubble

Brand

2 0 1

https://d7qlwi7tl2u27.cloudfront.net/skill-covers/prod/4267104/2026-10-18/hh5uay9a.png

---

allowed-tools:
  - generate_image
  - generate_video
  - generate_music
  - mix_clips
  - recognize_video
  - download_video
---

# 侍・日本刀 / Samurai & Katana

A samurai film is **stillness before the cut**: the scabbard, the breath, the light on the blade. Never a fight scene — the tension of not drawing.

## When to use

- The user asks for 侍, 武士, 剣戟, or a katana video.
- The user wants a Japanese sword-craft or brand film.
- The user wants a vertical samurai short for TikTok / Shorts / Reels.
- The user uploads a samurai reference clip and wants an original piece.

Do **not** use this skill for: gore, beheadings, or real historical figures — see Notes.

## Steps

### 0. Clarify — the blade decides the film

Call `write_todos` with the plan: clarify → (optional) reference analysis → choose the setting → storyboard → stills → shots → sound → edit.

Ask only what you still need:

1. **Which subject?** — 日本刀そのもの / 侍の所作 / 刀鍛冶の仕事
2. **Which hour?** — 朝霧 / 夕陽 / 夜の行灯
3. **Draw or not draw?** — 抜かない緊張 / 抜いた一瞬
4. **Frame?** — landscape 16:9 / portrait 9:16

Read the choice back in one Japanese line and get a yes.

### 1. Reference analysis (only if the user supplies a clip or image)

```
recognize_video(video_url=<url>, prompt='Analyse this as a Japanese samurai / katana film. Report: the light and hour, average shot length, how static the camera is, how much of the frame is a close-up, whether people are shown face-on, and the sound design. Do not describe the plot.')
```

For a YouTube / TikTok / Instagram link, resolve it first with `download_video(url=...)`.
Turn the answer into a short treatment note and read it back. Then build an **original** piece.

### 2. Storyboard — 8 beats, about 30 seconds

| # | Beat | Length | What happens |
|---|---|---|---|
| 1 | 刀架 | 4s | A katana on a stand, dust in a shaft of light |
| 2 | 鞘 | 4s | Macro of the scabbard, lacquer, the cord |
| 3 | 手 | 4s | A hand resting on the hilt, not moving |
| 4 | 目 | 4s | Eyes lowered, breath visible in cold air |
| 5 | 間 | 5s | Wider frame: the room, the shoji, the silence |
| 6 | 抜刀 | 4s | One motion — the blade catches the light |
| 7 | 光 | 5s | The blade edge, macro, still |
| 8 | 納刀 | 4s | The blade returns. Hold on the empty room |

**Rule: the sword is shown far more than the person, and the draw happens once**

### 3. 日本語での作法 — what makes it Japanese

**All on-screen text is Japanese. No English anywhere.**

**侍の符号（必ずどれかを入れる）**
- 日本刀、刀身、刃文、鐔、柄巻、鞘
- 刀架、白布、畳、障子、行灯
- 黒と藍の衣、袴、足袋、帯
- 朝霧、夕陽、埃、息
- 所作：正座、黙礼、抜刀、納刀
- 小物：懐紙、扇子、香

**光**
One hard light source raking across the blade; everything else falls to near-black. Cold blue for dawn, deep amber for dusk.

**音**
Breath, cloth, lacquer clicking, a single drawn-out metal ring. Almost no music — one low drone at most.

**テロップ**
- One line only: `刃に、心を。` — mincho, white, small, bottom

### 4. Stills

```
generate_image(model='t2i', prompt='Japanese samurai still life: a katana resting on a black lacquered stand in a dim tatami room, one shaft of cold morning light raking across the blade, dust in the air, deep shadows, no people, no text, cinematic, subtle grain', name='刀架', entity_type='storyboard_images', orientation='landscape')
```

```
generate_image(model='i2i', input_urls=[<user asset>], prompt='the exact same katana and stand, but the light is now deep amber dusk and a hand rests on the hilt, no face, no text', name='手', entity_type='storyboard_images')
```

### 5. Shots

```
generate_video(model='i2v', input_urls=[<still asset>], prompt='almost completely static: dust drifting through the shaft of light, the blade edge holding a single highlight, very slow camera push, no people, no camera shake', name='光', entity_type='storyboard_videos', orientation='landscape')
```

Keep `orientation` identical across every shot; never write a physical model name — channels only.

### 6. Sound

```
generate_music(model='music', prompt='Japanese samurai ambience: near-silence, a low taiko hit far away, one long sust