Image Crop Rotate Agent Skill

Image processing skill for cropping images to 50% from center and rotating them 90 degrees clockwise. This skill should be used when users request image cropping to center, image rotation, or both operations combined on image files.

1k tokens

context cost

the whole folder, loaded on every use

files

ships runnable scripts

copies elsewhere

how many repositories repackaged it

444

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/instavm/coderunner --skill image-crop-rotate

What comes with it

2 610 bytes besides the instruction

scripts/crop_and_rotate.py

The instruction itself

8 sections, as written by the author

Image Crop and Rotate

Overview

This skill provides functionality to crop images to 50% of their original size from the center and rotate them 90 degrees clockwise. It uses a reliable Python script with PIL/Pillow for consistent, high-quality image processing.

When to Use This Skill

Use this skill when the user requests:

Cropping an image to 50% from the center
Rotating an image 90 degrees (clockwise)
Both cropping and rotating an image
Image processing tasks that combine center cropping with rotation

How to Use This Skill

Overview

The skill provides a single script that performs both operations: cropping to 50% from center and rotating 90 degrees clockwise.

Process

Identify the input image: Locate the user's uploaded image file in /mnt/user-data/uploads/

Execute the script: Run the crop_and_rotate.py script with input and output paths:

   python scripts/crop_and_rotate.py <input_path> <output_path>

Provide the result: Move the processed image to /mnt/user-data/outputs/ and share it with the user

Script Details

scripts/crop_and_rotate.py

This script performs two operations in sequence:

Crops the image to 50% of its original size, centered
Rotates the cropped image 90 degrees clockwise

Usage:

python scripts/crop_and_rotate.py input.jpg output.jpg

Arguments:

First argument: Path to input image
Second argument: Path to save processed image

Supported formats: Any format supported by PIL/Pillow (JPEG, PNG, GIF, BMP, TIFF, etc.)

Output: The script prints processing details including original size, cropped size, and final size

Example Workflow

# Process an uploaded image
python /mnt/user-data/skills/image-crop-rotate/scripts/crop_and_rotate.py \
    /mnt/user-data/uploads/photo.jpg \
    /mnt/user-data/outputs/photo_processed.jpg

The script will:

Open the input image
Crop it to 50% from the center (e.g., 1000x800 → 500x400)
Rotate the cropped image 90° clockwise (e.g., 500x400 → 400x500)
Save the result to the output path

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How to use it

Copy the folder

Take instavm/image-crop-rotate from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.