Repository Analysis

huynhsontung/Screenbox

LibVLC-based media player for the Universal Windows Platform

4.0 Likely human-written View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of huynhsontung/Screenbox, a C# project with 3,940 GitHub stars. SynthScan v2.0 examined 36,914 lines of code across 396 source files, recording 107 pattern matches distributed across 4 syntactic categories. The overall adjusted score of 4.0 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).

4.0
Adjusted Score
4.0
Raw Score
100%
Time Factor
2026-07-14
Last Push
3.9K
Stars
C#
Language
36.9K
Lines of Code
396
Files
107
Pattern Hits
2026-07-14
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

Longitudinal tracking requires multiple scan runs. Once this repository is re-scanned after new commits land, this chart will visualise how the synthetic code signal evolves over time — enabling you to detect whether AI authorship is growing, stabilising, or being actively corrected by human engineers.

No multi-scan history yet — run the scanner again to build trend data.

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 0LOW 102

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 107 distinct pattern matches across 4 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 Block101 hits · 98 pts
SeverityFileLineSnippetContext
LOWScreenbox/App.xaml.cs221COMMENT
LOWScreenbox/Triggers/WindowActivationModeTrigger.cs1#nullable enableCOMMENT
LOWScreenbox/Triggers/WindowActivationModeTrigger.cs21/// This example shows how to use the <see cref="VisualState.StateTriggers"/> propertyCOMMENT
LOW…ox/Converters/ResourceNameToResourceStringConverter.cs81 /// If the resource exists, the value is returned; otherwise, an empty string is returned.COMMENT
LOWScreenbox/Converters/ThicknessFilterKinds.cs1using System;COMMENT
LOWScreenbox/Converters/ThicknessFilterKinds.cs21 Left = 0b_0001,COMMENT
LOWScreenbox/Converters/ThicknessFilterKinds.cs41 /// <remarks>This value combines the <see cref="Left"/> and <see cref="Right"/> flags.</remarks>COMMENT
LOWScreenbox/Converters/GlyphConverter.cs121 /// </summary>COMMENT
LOWScreenbox/Converters/GlyphConverter.cs141 /// otherwise, <b>Pause Solid</b> glyph code.COMMENT
LOWScreenbox/Converters/ThicknessFiltersConverter.cs1// Source (inspired by and ported to C#): https://github.com/microsoft/microsoft-ui-xaml/pull/6829COMMENT
LOWScreenbox/Converters/ThicknessFiltersConverter.cs21/// &lt;Grid&gt;COMMENT
LOWScreenbox/Converters/ThicknessFiltersConverter.cs41/// &lt;/Grid&gt;COMMENT
LOW…nverters/NullableBooleanToSelectionToolTipConverter.cs1#nullable enableCOMMENT
LOWScreenbox/Extensions/ListViewExtensions.cs221 if (IsApiContract13Present)COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs41 ///// Attached <see cref="DependencyProperty"/> for binding a <see cref="ToolTipService.PlacementProperty"/> to the COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs61 //}COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs81 //public static void SetPrimaryButtonToolTipPlacementTarget(SplitButton element, UIElement value)COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs101 /// <summary>COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs121 // return (double)element.GetValue(SecondaryButtonKeyTipHorizontalOffsetProperty);COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs141 ///// <returns>The <see cref="KeyTipPlacementMode"/> <see cref="enum"/> associated with the <see cref="SplitButton"/COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs161 ///// <summary>COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs181 //public static readonly DependencyProperty SecondaryButtonKeyTipVerticalOffsetProperty = DependencyProperty.RegisteCOMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs221 element.SetValue(SecondaryButtonToolTipProperty, value);COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs241 ///// </summary>COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs261COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs281 //{COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs341 ToolTipService.SetPlacement(primaryButton, parentPlacementMode);COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs361COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs381 // if (PrimaryButtonToolTipPlacementTargetProperty != null)COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs441COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs461COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs481 // var secondaryButton = splitButton.FindDescendant<Button>(sb => sb.Name == "SecondaryButton");COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs501 // }COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs521 // splitButton.Unloaded -= OnSplitButtonUnloaded;COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs581 }COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs601 // if (sender is SplitButton splitButton)COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs621 // splitButton.Unloaded += OnSplitButtonUnloaded;COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs641 // {COMMENT
LOWScreenbox/Extensions/SplitButtonExtensions.cs661 // AutomationProperties.SetName(secondaryButton, GetSecondaryButtonAutomationName(splitButton));COMMENT
LOWScreenbox/Extensions/ApplicationViewExtensions.cs1// Licensed to the .NET Foundation under one or more agreements.COMMENT
LOWScreenbox/Extensions/AcceleratorService.cs1#nullable enableCOMMENT
LOWScreenbox/Extensions/AcceleratorService.cs21/// &lt;KeyboardAccelerator Key="N" Modifiers="Control,Menu" /&gt;COMMENT
LOWScreenbox/Extensions/AcceleratorService.cs41 /// <summary>COMMENT
LOWScreenbox/Controls/ErrorInfo.xaml.cs21 Confused,COMMENT
LOWScreenbox/Controls/LivelyWebWallpaperPlayer.xaml.cs21 // public double[] AudioCOMMENT
LOWScreenbox/Controls/CompositeTrackPicker.xaml.cs21 /// <summary>COMMENT
LOWScreenbox/Controls/TitleBar/TitleBar.cs21/// <list type="bullet">COMMENT
LOWScreenbox/Controls/TitleBar/TitleBar.cs41/// </local:TitleBar.Content>COMMENT
LOWScreenbox/Controls/TitleBar/TitleBar.Properties.cs221 /// <summary>COMMENT
LOWScreenbox/Controls/TitleBar/TitleBarHeightMode.cs1namespace Screenbox.Controls;COMMENT
LOWScreenbox/Controls/NavigationViewEx/NavigationViewEx.cs21using NavigationViewDisplayMode = Microsoft.UI.Xaml.Controls.NavigationViewDisplayMode;COMMENT
LOWScreenbox/Controls/NavigationViewEx/NavigationViewEx.cs41/// <item><description><b>Accessibility:</b> Assign access keys and keyboard accelerators to each built-in button indiviCOMMENT
LOWScreenbox/Controls/CommandBarEx/CommandBarEx.cs1#nullable enableCOMMENT
LOW…trols/ContentUnavailableView/ContentUnavailableView.cs1#nullable enableCOMMENT
LOW…trols/ContentUnavailableView/ContentUnavailableView.cs21/// Message="There are no images to display. Add files to it to get started."COMMENT
LOWScreenbox/Properties/AssemblyInfo.cs21// Build NumberCOMMENT
LOWScreenbox/Behaviors/ListViewSelectionBehavior.cs21/// </remarks>COMMENT
LOWScreenbox/Commands/SelectDeselectAllCommand.cs21 /// <param name="listViewBase">The <see cref="ListViewBase"/> to evaluate.</param>COMMENT
LOW…enbox/Assets/Animations/AnimatedPlayingVisualSource.cs1//------------------------------------------------------------------------------COMMENT
LOW…enbox/Assets/Animations/AnimatedPlayingVisualSource.cs21// ___________________________________________________________COMMENT
41 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.cs19 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
Hyper-Verbose Identifiers1 hit · 1 pts
SeverityFileLineSnippetContext
LOWScreenbox/Assets/Visualizers/Music Tunnel/js/script.js129function livelyWallpaperPlaybackChanged(data) {CODE