Repository Analysis

NickeManarin/ScreenToGif

🎬 ScreenToGif allows you to record a selected area of your screen, edit and save it as a gif or video.

3.3 Likely human-written View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of NickeManarin/ScreenToGif, a C# project with 27,279 GitHub stars. SynthScan v2.0 examined 94,044 lines of code across 661 source files, recording 297 pattern matches distributed across 4 syntactic categories. The overall adjusted score of 3.3 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).

3.3
Adjusted Score
3.3
Raw Score
100%
Time Factor
2026-04-27
Last Push
27.3K
Stars
C#
Language
94.0K
Lines of Code
661
Files
297
Pattern Hits
2026-07-14
Scan Date
0.00
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 1HIGH 0MEDIUM 0LOW 296

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 297 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 Block294 hits · 294 pts
SeverityFileLineSnippetContext
LOWScreenToGif.Util/Arguments.cs21COMMENT
LOWScreenToGif.Util/Arguments.cs41COMMENT
LOWScreenToGif.Util/Arguments.cs61COMMENT
LOWScreenToGif.Util/UiElementsExtension.cs21 clone = XamlReader.Load(stream);COMMENT
LOWScreenToGif.Util/SimpleKeyGesture.cs41 public string DisplayString { get; }COMMENT
LOWScreenToGif.Util/SimpleKeyGesture.cs61 /// <param name="modifiers">The modifier keys associated with the gesture.</param>COMMENT
LOWScreenToGif.Util/SimpleKeyGesture.cs81 if (key == Key.LeftCtrl || key == Key.LeftShift || key == Key.LeftAlt || key == Key.LWin || key == Key.RightCtrlCOMMENT
LOWScreenToGif.Util/LocalizationHelper.cs161 /// if resource available is newer than assemblyCOMMENT
LOWScreenToGif.Util/LocalizationHelper.cs501COMMENT
LOWScreenToGif.Util/DebounceDispatcher.cs21 /// Wrap the logic you would normally use in your event code intoCOMMENT
LOWScreenToGif.Util/DebounceDispatcher.cs81 /// timeout period. Only the last event fired is handled - all others are ignored.COMMENT
LOWScreenToGif.Util/NetworkHelper.cs21 /// <param name="destinationAddress">COMMENT
LOWScreenToGif.Util/NetworkHelper.cs41 /// The use of this connection is unrestricted up to a specific data transfer limit.COMMENT
LOWScreenToGif.Util/Settings/UserSettings.cs801 /// <summary>COMMENT
LOWScreenToGif.Util/Settings/UserSettings.cs2481COMMENT
LOWScreenToGif.Util/Settings/UserSettings.cs2501 //{COMMENT
LOWScreenToGif.Util/Native/InputHook.cs21 #region Windows constants from Winuser.h in Microsoft SDK.COMMENT
LOWScreenToGif.Util/Native/InputHook.cs41 /// key is released. A nonsystem key is a key that is pressed when the ALT key is not pressed,COMMENT
LOWScreenToGif.Util/Native/InputHook.cs81COMMENT
LOWScreenToGif.Util/Native/InputHook.cs101 public event CustomMouseEventHandler OnMouseActivity;COMMENT
LOWScreenToGif.Util/Native/InputHook.cs161 Start();COMMENT
LOWScreenToGif.Util/Native/InputHook.cs261 /// </summary>COMMENT
LOWScreenToGif.Util/Native/InputHook.cs341 /// <param name="code">COMMENT
LOWScreenToGif.Util/Native/InputHook.cs541 //return CallNextHookEx(hMouseHook, nCode, wParam, lParam);COMMENT
LOWScreenToGif.Util/Native/InputHook.cs561 /// CallNextHookEx function without further processing and must return theCOMMENT
LOWScreenToGif.Util/Codification/PixelUtil.cs21 /// <summary>COMMENT
LOWScreenToGif.Util/Codification/PixelUtil.cs41 /// <summary>COMMENT
LOWScreenToGif.Util/Codification/PixelUtil.cs401 /// Set the color of the specified pixel coordinates by blending the color with a new color.COMMENT
LOWScreenToGif.Util/Codification/Apng/Apng.cs41 /// The total number of frames.COMMENT
LOWScreenToGif.Util/Codification/Apng/Apng.cs61COMMENT
LOWScreenToGif.Util/Codification/Apng/Chunks/FctlChunk.cs21 ///Height of the following frame.COMMENT
LOWScreenToGif.Util/Codification/Apng/Chunks/FctlChunk.cs41 ///Frame delay fraction denominator.COMMENT
LOWScreenToGif.Util/Codification/Apng/Chunks/ApngFrame.cs1namespace ScreenToGif.Util.Codification.Apng.Chunks;COMMENT
LOWScreenToGif.Util/Codification/Apng/Chunks/ApngFrame.cs21 internal uint Left { get; set; }COMMENT
LOWScreenToGif.Util/Codification/Apng/Chunks/ApngFrame.cs41 /// </summary>COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs201COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs241// private int CurrentIndex { get; set; }COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs261// ColorDepth = colorDepth;COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs281// Stream.WriteByte(0x00); //TerminatorCOMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs301// ClearCode = 1 << (InitialCodeSize);COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs321// Output(EndOfFileCode);COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs341// return (1 << codeSize) - 1;COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/LZWEncoder.cs361// #endregionCOMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/GifFile.cs21COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/GifFile.cs41 public ColorQuantizationTypes QuantizationType { get; set; } = ColorQuantizationTypes.Octree;COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/GifFile.cs61 /// </summary>COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/GifFile.cs81 /// </summary>COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/GifFile.cs341 //Write the packed fields.COMMENT
LOWScreenToGif.Util/Codification/Gif/Encoder/GifFile.cs561 }COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs1using Color = System.Windows.Media.Color;COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs21// You can read the full text of the GNU General Public License at:COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs41 /// Maximum possible neuron index within the neural network.COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs61COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs81 /// Fourth prime number near 500.COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs101COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs121COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs141 private const int GammaShift = 10; /* Gamma = 1024 */COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs161 #region Definitions for decreasing radius factorCOMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs181 /// <summary>COMMENT
LOW…dification/Gif/Encoder/Quantization/NeuralQuantizer.cs201 /// The greater this value, the larger alpha will be, and the more neighbouring neurons will be moved by during the COMMENT
234 more matches not shown…
Hallucination Indicators1 hit · 10 pts
SeverityFileLineSnippetContext
CRITICALScreenToGif/Webcam/DirectShow/WorkAround.cs53 var ooo = InternalWrapIUnknownWithComObject(ptrIf); //System.Runtime.Remoting.Services.EnterpriseServicesHelper.CODE
Structural Annotation Overuse1 hit · 2 pts
SeverityFileLineSnippetContext
LOW…ToGif/Util/Converters/PresetToSubViewModelConverter.cs14// NOTE: This class is needed because by default ExportPanel uses the preset as a data context (which is actually a modeCOMMENT
Slop Phrases1 hit · 1 pts
SeverityFileLineSnippetContext
LOWOther/Translator/TranslatorWindow.xaml.cs316 if (BaseDataGrid.Items.Count > 0 && !Dialog.Ask("Translator", "Do you really wish to close?", "Don't forget to eCODE