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Image Center Crop & 90° Rotate

A Python/Pillow skill that crops an image to 50% from the center and rotates it 90 degrees clockwise in one command.

Image & VideoBeginner★ 893⑂ 41AI score 7/10Last updated: Aug 13, 2026

What it does

  • Crops the image to 50% of its original size, centered (e.g. 1000x800 → 500x400).
  • Rotates the cropped result 90° clockwise (e.g. 500x400 → 400x500).
  • Runs both steps through a single script, scripts/crop_and_rotate.py, printing original, cropped and final dimensions.
  • Works with any format Pillow supports: JPEG, PNG, GIF, BMP, TIFF and more.

Who it's for

  • Anyone producing thumbnails or social images that always need the same crop-and-turn treatment.
  • Developers who want a minimal reference for a script-backed Claude Code skill.
  • People fixing the orientation and framing of batches of photos or scans.

Examples

  1. "Crop just the middle of this photo and turn it portrait" — the skill triggers and returns the processed file.
  2. Direct CLI use: python scripts/crop_and_rotate.py photo.jpg photo_processed.jpg.
  3. Prepping scanned pages: keep the central region and correct the rotation before passing them to an OCR step.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/instavm/coderunner/HEAD/skills/public/image-crop-rotate/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/public/image-crop-rotate folder from the GitHub repo instavm/coderunner into my ~/.claude/skills/image-crop-rotate/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/instavm/coderunner.git /tmp/coderunner && mkdir -p ~/.claude/skills && cp -r /tmp/coderunner/skills/public/image-crop-rotate ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/instavm/coderunner.git
  3. Create the skills folder if needed: mkdir -p ~/.claude/skills
  4. Copy the skill in: cp -r coderunner/skills/public/image-crop-rotate ~/.claude/skills/
  5. Make sure Pillow is available: pip install pillow
  6. Restart Claude Code and ask: "crop this image to 50% from the center and rotate it 90 degrees".
  7. Find the processed file at the output path the skill reports (e.g. /mnt/user-data/outputs/) or the path you passed to the script.
View source on GitHub ↗License: Apache-2.0