Does this skill support the latest Vision features?

Yes, it includes diagnostics for modern iOS 17+ APIs like foreground instance masks and 3D body pose detection.

How do I prevent my app from freezing during Vision requests?

Ensure Vision requests are performed on a background thread using DispatchQueue.global() rather than the main thread to avoid blocking the UI.

What is the most common cause of Vision detection failure?

Issues are typically environmental (40%), such as lighting or occlusion, or related to confidence thresholds (30%) where the system ignores data below a certain reliability level.

Why are my Vision overlays appearing in the wrong place?

This is usually due to coordinate system mismatches between Vision’s lower-left origin (normalized 0,0 to 1,1) and UIKit’s top-left origin.

Vision Framework Diagnostics

Name: Vision Framework Diagnostics
Author: CharlesWiltgen

byCharlesWiltgen

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148

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Mobile Development

Troubleshoots and resolves Apple Vision framework issues including detection failures, performance bottlenecks, and coordinate mismatches.

This skill provides a systematic diagnostic framework for Apple's Vision and VisionKit frameworks across all xOS platforms (iOS, iPadOS, macOS, tvOS, and visionOS). It helps developers identify and fix common pitfalls like low confidence scores, threading errors that freeze the UI, coordinate system mismatches between normalized and image space, and API availability issues. By offering structured decision trees and diagnostic code snippets for hand pose, body pose, text recognition, and barcode detection, it significantly reduces the time spent debugging complex computer vision implementations.

主な機能

01Threading analysis to prevent UI freezes during heavy image processing

02Coordinate conversion guidance for accurate UI overlay positioning

03148 GitHub stars

04Systematic troubleshooting for hand, body, and face detection failures

05Diagnostic code for verifying confidence scores and API availability

06Support for VisionKit, DataScannerViewController, and OCR troubleshooting

ユースケース

01Fixing misaligned UI overlays caused by mixing normalized and image coordinates

02Debugging why hand poses or subjects aren't detected in low-light environments

03Optimizing real-time camera feed performance to prevent frame drops and UI lag

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add charleswiltgen/axiom vision-diag

For use in Claude.ai and ChatGPT

Download Skill