Image Crop Rotate
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.
Install
$ agentstack add skill-instavm-coderunner-image-crop-rotate ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
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Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-instavm-coderunner-image-crop-rotate) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
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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.pyscript with input and output paths:
``bash python scripts/crop_and_rotate.py ``
- 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.jpgArguments:
- 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.jpgThe 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
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: instavm
- Source: instavm/coderunner
- License: Apache-2.0
- Homepage: https://instavm.io
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.