Repository Analysis

huynhsontung/Screenbox

LibVLC-based media player for the Universal Windows Platform

3.7 Likely human-written View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of huynhsontung/Screenbox, a C# project with 4,088 GitHub stars. SynthScan v2.0 examined 38,512 lines of code across 426 source files, recording 98 pattern matches distributed across 5 syntactic categories. The overall adjusted score of 3.7 places this repository in the Likely human-written band.

The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).

3.7
Adjusted Score
3.7
Raw Score
100%
Time Factor
2026-08-29
Last Push
4.1K
Stars
C#
Language
38.5K
Lines of Code
426
Files
98
Pattern Hits
2026-08-29
Scan Date
0.01
HC Hit Rate

What These Metrics Mean

Adjusted Score
Primary synthetic code indicator. Raw score normalised per 1,000 lines of code and multiplied by the temporal discount factor. This is the definitive comparative metric — use it to rank repositories by AI authorship density.
Raw Score
The unmodified sum of all severity-weighted, context-multiplied pattern match scores before temporal discounting. Reflects the absolute signal strength independent of when the repository was last active.
Time Factor
The temporal discount multiplier (0–100%) applied to the raw score. Repositories last updated before ChatGPT's launch (Nov 2022) receive a 5% factor. Full signal is only assigned to repositories active in the post-adoption era (Jan 2024+).
Pattern Hits
Total count of individual pattern matches across all files and categories. A high hit count with a low score may indicate a very large codebase with isolated AI snippets; a low count with a high score indicates dense, concentrated AI signatures.
HC Hit Rate
High+Critical pattern hits per file, averaged across the repository. This orthogonal signal catches repositories where a few files are densely packed with high-severity AI tells — a strong indicator even when the normalised score appears moderate due to codebase size.
Lines of Code / Files
Total lines and files analysed. The scanner examines 94 file extensions. These denominators are used to normalise the score, enabling fair comparison between repositories of vastly different sizes.

Score History

This chart maps the temporal evolution of the adjusted synthetic code score across successive scan runs. An upward trajectory indicates ongoing incorporation of AI-generated code or expanding LLM-assisted scaffolding; a stable or declining trajectory may reflect active human refactoring, code removal, or the adoption of stricter authorship policies. The dashed secondary line (right axis) independently tracks total raw pattern hit count, which can diverge from the normalised score when codebase size changes significantly between scans.

Severity Breakdown

Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.

CRITICAL 4HIGH 1MEDIUM 1LOW 92

Directory Score Breakdown

This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.

Pattern Findings

The scanner identified 98 distinct pattern matches across 5 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.

Reading the findings table: The Severity column indicates the diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.

Over-Commented Block91 hits · 91 pts
SeverityFileLineSnippetContext
LOWScreenbox/App.xaml.cs241 Window.Current.Activate();COMMENT
LOWScreenbox/Triggers/WindowActivationModeTrigger.cs1using CommunityToolkit.WinUI.Helpers;COMMENT
LOWScreenbox/Triggers/WindowActivationModeTrigger.cs21/// XAML markup based on the activation state of the window.COMMENT
LOW…ox/Converters/ResourceNameToResourceStringConverter.cs81 /// <param name="value">The source string being passed to the target.</param>COMMENT
LOWScreenbox/Converters/GlyphConverter.cs121 /// Gets the playing state gylph code based on a boolean condition.COMMENT
LOWScreenbox/Converters/GlyphConverter.cs141 /// <b>Play Solid</b> glyph code <see cref="string"/> if the <paramref name="value"/> is <see langword="true"/>;COMMENT
LOWScreenbox/Converters/GlyphConverter.cs201 PlaybackCommandKind.RateDown => FastForwardGlyph,COMMENT
LOW…nverters/NullableBooleanToSelectionToolTipConverter.cs1using System;COMMENT
LOWScreenbox/Extensions/ListViewExtensions.cs221 // The ListViewItem in Windows 11 appears to have a Border element with a margin of '4,2,4,2',COMMENT
LOWScreenbox/Extensions/ApplicationViewExtensions.cs1// Licensed to the .NET Foundation under one or more agreements.COMMENT
LOWScreenbox/Extensions/AcceleratorService.cs1using System.Globalization;COMMENT
LOWScreenbox/Extensions/AcceleratorService.cs21/// &lt;/Button&gt;COMMENT
LOWScreenbox/Extensions/AcceleratorService.cs41 /// </summary>COMMENT
LOWScreenbox/Controls/TimeDisplay.xaml.cs81COMMENT
LOWScreenbox/Controls/ErrorInfo.xaml.cs21 Confused,COMMENT
LOWScreenbox/Controls/LivelyWebWallpaperPlayer.xaml.cs21 // get { return (double[])GetValue(AudioProperty); }COMMENT
LOWScreenbox/Controls/LivelyWebWallpaperPlayer.xaml.cs181 // Ref: https://github.com/rocksdanister/lively/wiki/Web-Guide-V-:-System-Data#--system-nowplayingCOMMENT
LOW…reenbox/Behaviors/ListViewContextRequestedEventArgs.cs1using System;COMMENT
LOWScreenbox/Behaviors/ListViewContextBehavior.cs21 /// <summary>COMMENT
LOWScreenbox/Commands/SelectDeselectAllCommand.cs21 /// <returns>COMMENT
LOW…enbox/Assets/Animations/AnimatedPlayingVisualSource.cs1//------------------------------------------------------------------------------COMMENT
LOW…enbox/Assets/Animations/AnimatedPlayingVisualSource.cs21// ___________________________________________________________COMMENT
LOW…enbox/Assets/Animations/AnimatedPlayingVisualSource.cs141 /// </summary>COMMENT
LOWScreenbox/Helpers/ItemLabelHelper.cs21 /// <param name="subtitle">The secondary subtitle of the item.</param>COMMENT
LOWScreenbox/Helpers/ItemLabelHelper.cs61 /// <summary>COMMENT
LOWScreenbox/Helpers/ItemLabelHelper.cs81 /// <param name="itemsCount">The number of items contained in the folder.</param>COMMENT
LOWScreenbox/Helpers/ItemLabelHelper.cs141 };COMMENT
LOWScreenbox/Helpers/ItemLabelHelper.cs181 /// <summary>COMMENT
LOWScreenbox/Helpers/GlobalizationHelper.cs41 /// </summary>COMMENT
LOWScreenbox/Helpers/DeviceInfoHelper.cs21 /// <summary>COMMENT
LOWScreenbox/Helpers/KeyboardAcceleratorHelper.cs1using System;COMMENT
LOWScreenbox/Helpers/KeyboardAcceleratorHelper.cs21 public const VirtualKey OemPlus = (VirtualKey)0xBB;COMMENT
LOWScreenbox/Helpers/KeyboardAcceleratorHelper.cs41 /// <summary>The Period (.) and Greater Than (&gt;) key or button for any country/region (VK_OEM_PERIOD).</summary>COMMENT
LOWScreenbox.Core/Coordinators/ILibraryCoordinator.cs1using System;COMMENT
LOWScreenbox.Core/Coordinators/IPlayQueueCoordinator.cs1using System;COMMENT
LOWScreenbox.Core/Coordinators/IPlayQueueCoordinator.cs21/// </para>COMMENT
LOWScreenbox.Core/Coordinators/IPlayQueueCoordinator.cs41 /// <summary>COMMENT
LOWScreenbox.Core/Coordinators/IPlayQueueCoordinator.cs61 /// <param name="insertIndex">COMMENT
LOWScreenbox.Core/Coordinators/PlayQueueCoordinator.cs21using Windows.Media.Playback;COMMENT
LOWScreenbox.Core/ViewModels/PlayerControlsViewModel.cs181 }COMMENT
LOWScreenbox.Core/ViewModels/SelectionViewModel.cs21COMMENT
LOWScreenbox.Core/ViewModels/SelectionViewModel.cs41 /// </value>COMMENT
LOW…enbox.Core/ViewModels/CompositeTrackPickerViewModel.cs41 /// <summary>COMMENT
LOWScreenbox.Core/ViewModels/PlayerPageViewModel.cs61COMMENT
LOWScreenbox.Core/ViewModels/PlayerPageViewModel.cs401 _isPlayPauseHoldActive = false;COMMENT
LOWScreenbox.Core/ViewModels/PlayerPageViewModel.cs441 /// Handles a seek operation based on keyboard input.COMMENT
LOWScreenbox.Core/ViewModels/PlayerPageViewModel.cs481 };COMMENT
LOWScreenbox.Core/ViewModels/PlayerPageViewModel.cs541 /// Handles a playback rate increment or decrement based on keyboard input.COMMENT
LOWScreenbox.Core/ViewModels/PlayerPageViewModel.cs581COMMENT
LOWScreenbox.Core/ViewModels/PlayerPageViewModel.cs621 /// <item><description><see cref="VirtualKey.Number3"/>: Resize to 150% of video size.</description></item>COMMENT
LOWScreenbox.Core/Messages/PlayerOsdUpdateMessage.cs1using System;COMMENT
LOWScreenbox.Core/Messages/PlayerOsdUpdateMessage.cs21 /// The data value to display or process with the update, or <see langword="null"/>COMMENT
LOWScreenbox.Core/Messages/PlayerOsdUpdateMessage.cs41 /// Gets a value indicating whether the update includes a badge.COMMENT
LOWScreenbox.Core/Messages/VisualizerChangedMessage.cs1namespace Screenbox.Core.Messages;COMMENT
LOW…nbox.Core/Messages/ChangePlaybackRateRequestMessage.cs1using CommunityToolkit.Mvvm.Messaging.Messages;COMMENT
LOWScreenbox.Core/Contexts/PlayQueueContext.cs1using System.Collections.ObjectModel;COMMENT
LOWScreenbox.Core/Contexts/PlayQueueContext.cs21 /// Created once and mutated in-place by <see cref="Coordinators.PlayQueueCoordinator"/>.COMMENT
LOWScreenbox.Core/Contexts/PlayQueueContext.cs41 /// <summary>COMMENT
LOWScreenbox.Core/Models/SearchSuggestion.cs1using Screenbox.Core.Enums;COMMENT
LOWScreenbox.Core/Models/SearchSuggestion.cs21 /// </summary>COMMENT
31 more matches not shown…
Hallucination Indicators4 hits · 40 pts
SeverityFileLineSnippetContext
CRITICALScreenbox/App.xaml.cs70 CommunityToolkit.Mvvm.DependencyInjection.Ioc.Default.ConfigureServices(_services);CODE
CRITICAL…eenbox/Assets/Visualizers/Music Tunnel/js/three.min.js6!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?defCODE
CRITICAL…enbox/Assets/Visualizers/Music Tunnel/js/jquery.min.js4void 0!==c?null===c?void r.removeAttr(a,b):e&&"set"in e&&void 0!==(d=e.set(a,c,b))?d:(a.setAttribute(b,c+""),c):e&&"get"CODE
CRITICALScreenbox.Core/Helpers/LanguageHelper.cs20 return Windows.System.UserProfile.GlobalizationPreferences.Languages.FirstOrDefault() ?? string.Empty;CODE
Synthetic Comment Markers1 hit · 8 pts
SeverityFileLineSnippetContext
HIGH…enbox/Assets/Animations/AnimatedPlayingVisualSource.cs3// This code was generated by a tool.COMMENT
Self-Referential Comments1 hit · 3 pts
SeverityFileLineSnippetContext
MEDIUM.github/workflows/main.yml180 # Create the bundle and fix the version mismatch using /bvCOMMENT
Hyper-Verbose Identifiers1 hit · 1 pts
SeverityFileLineSnippetContext
LOWScreenbox/Assets/Visualizers/Music Tunnel/js/script.js129function livelyWallpaperPlaybackChanged(data) {CODE