Cross platform GUI framework for desktop and mobile applications in .NET
This report presents the forensic synthetic code analysis of picoe/Eto, a C# project with 3,963 GitHub stars. SynthScan v2.0 examined 279,373 lines of code across 1618 source files, recording 1507 pattern matches distributed across 6 syntactic categories. The overall adjusted score of 5.8 places this repository in the Low AI signal 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).
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.
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.
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.
The scanner identified 1507 distinct pattern matches across 6 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.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …t/Eto.Test.Wpf/UnitTests/DragDropLibDataObjectTests.cs | 1 | using NUnit.Framework; | COMMENT |
| LOW | …t/Eto.Test.Wpf/UnitTests/DragDropLibDataObjectTests.cs | 461 | var data = (ComDataObject)dataObject; | COMMENT |
| LOW | test/Eto.Test/UnitTests/TestBase.cs | 201 | /// Unit test utilities | COMMENT |
| LOW | test/Eto.Test/UnitTests/TestBase.cs | 781 | /// It never returns before the first poll, so a pending layout/paint pass always gets a chance to | COMMENT |
| LOW | …Test/UnitTests/SingleFileDefaultTestAssemblyBuilder.cs | 41 | /// <summary> | COMMENT |
| LOW | …Test/UnitTests/SingleFileDefaultTestAssemblyBuilder.cs | 61 | public ITest Build(Assembly assembly, IDictionary<string, object> options) | COMMENT |
| LOW | …Test/UnitTests/SingleFileDefaultTestAssemblyBuilder.cs | 101 | COMMENT | |
| LOW | …Test/UnitTests/SingleFileDefaultTestAssemblyBuilder.cs | 121 | // foreach (var parameter in testParametersDictionary) | COMMENT |
| LOW | test/Eto.Test/UnitTests/Drawing/BaseBitmapDataTests.cs | 1 | using NUnit.Framework; | COMMENT |
| LOW | test/Eto.Test/UnitTests/Drawing/BitmapTests.cs | 461 | void GetSavedBitmap() | COMMENT |
| LOW | …est/UnitTests/Forms/Controls/AutoCompleteGhostTests.cs | 1 | using NUnit.Framework; | COMMENT |
| LOW | …est/UnitTests/Forms/Controls/AutoCompleteGhostTests.cs | 21 | /// works. | COMMENT |
| LOW | test/Eto.Test.Mac/UnitTests/NumericStepperTests.cs | 121 | /// it rather than a hardcoded separator, since it differs per machine - and note the formatter needs an | COMMENT |
| LOW | …les/Wpf/EmbedEtoInWpf/Properties/Resources.Designer.cs | 1 | //------------------------------------------------------------------------------ | COMMENT |
| LOW | …ms/EmbedEtoInWinForms/Properties/Resources.Designer.cs | 1 | //------------------------------------------------------------------------------ | COMMENT |
| LOW | samples/Tutorials/CSharp/Tutorial3/Main.cs | 41 | // -------------------------------- | COMMENT |
| LOW | src/Eto.Serialization.Xaml/XamlReader.cs | 141 | return true; | COMMENT |
| LOW | src/Eto.Serialization.Xaml/XamlReader.cs | 161 | /// <returns>A new instance of the specified type with the contents loaded from xaml</returns> | COMMENT |
| LOW | src/Eto.Serialization.Xaml/XamlReader.cs | 181 | public static T Load<T>(Stream stream) | COMMENT |
| LOW | src/Eto.Serialization.Xaml/XamlReader.cs | 261 | COMMENT | |
| LOW | …/Eto.Serialization.Xaml/Extensions/BindingExtension.cs | 21 | COMMENT | |
| LOW | src/Eto.Serialization.Json/JsonReader.cs | 121 | return false; | COMMENT |
| LOW | src/Eto.Serialization.Json/JsonReader.cs | 141 | { | COMMENT |
| LOW | src/Eto.Serialization.Json/JsonReader.cs | 161 | } | COMMENT |
| LOW | src/Eto.Serialization.Json/JsonReader.cs | 201 | { | COMMENT |
| LOW | src/Eto.Serialization.Json/JsonReader.cs | 241 | /// <typeparam name="T">Type of object to load from the specified json</typeparam> | COMMENT |
| LOW | src/Eto.Android/KeyMap.cs | 101 | keymap.Add(av.Keycode.U, Keys.U); | COMMENT |
| LOW | src/Eto.Android/Platform.cs | 101 | //p.Add<ITreeView.IHandler>(() => new TreeViewHandler ()); | COMMENT |
| LOW | src/Eto.WinUI/WinUIHelpers.cs | 1 | using Eto.WinUI.Forms; | COMMENT |
| LOW | src/Eto.WinUI/WinUIHelpers.cs | 61 | /// Wraps the specified WPF <paramref name="window"/> in an Eto control so it can be used as a parent when showing dia | COMMENT |
| LOW | src/Eto.WinUI/Platform.cs | 41 | //p.Add<Fonts.IHandler>(() => new FontsHandler()); | COMMENT |
| LOW | src/Eto.WinUI/Platform.cs | 61 | //p.Add<TextBoxCell.IHandler>(() => new TextBoxCellHandler()); | COMMENT |
| LOW | src/Eto.WinUI/Platform.cs | 121 | //p.Add<RadioMenuItem.IHandler>(() => new RadioMenuItemHandler()); | COMMENT |
| LOW | src/Eto.WinUI/Platform.cs | 141 | p.Add<Application.IHandler>(() => new ApplicationHandler()); | COMMENT |
| LOW | src/Eto.WinUI/Platform.cs | 161 | //p.Add<Screen.IScreensHandler>(() => new ScreensHandler()); | COMMENT |
| LOW | src/Eto.WinUI/Platform.cs | 181 | //} | COMMENT |
| LOW | src/Eto.WinUI/Platform.cs | 201 | // Debug.WriteLine("Warning: Could not create WebView2 handler. Add Microsoft.Web.WebView2 nuget package to your proj | COMMENT |
| LOW | src/Eto.WinUI/Forms/TableLayoutHandler.cs | 181 | } | COMMENT |
| LOW | src/Eto.WinUI/Forms/TableLayoutHandler.cs | 201 | // return; | COMMENT |
| LOW | src/Eto.WinUI/Forms/TableLayoutHandler.cs | 221 | // { | COMMENT |
| LOW | src/Eto.WinUI/Forms/Controls/SplitterHandler.cs | 681 | COMMENT | |
| LOW | src/Eto.iOS/Platform.cs | 101 | //p.Add<SeparatorMenuItem.IHandler>(() => new SeparatorMenuItemHandler ()); | COMMENT |
| LOW | src/Eto.WinForms/Quantizer.cs | 21 | /// <remarks> | COMMENT |
| LOW | src/Eto.WinForms/Quantizer.cs | 121 | /// <summary> | COMMENT |
| LOW | src/Eto.WinForms/Quantizer.cs | 201 | /// such as an Octree quantizer. | COMMENT |
| LOW | src/Eto.WinForms/Quantizer.cs | 221 | /// <summary> | COMMENT |
| LOW | src/Eto.WinForms/Quantizer.cs | 241 | public byte Blue; | COMMENT |
| LOW | src/Eto.WinForms/Resources.Designer.cs | 1 | //------------------------------------------------------------------------------ | COMMENT |
| LOW | src/Eto.WinForms/OctreeQuantizer.cs | 41 | /// </summary> | COMMENT |
| LOW | src/Eto.WinForms/OctreeQuantizer.cs | 221 | } | COMMENT |
| LOW | src/Eto.WinForms/OctreeQuantizer.cs | 241 | /// </summary> | COMMENT |
| LOW | src/Eto.WinForms/OctreeQuantizer.cs | 441 | /// <summary> | COMMENT |
| LOW | src/Eto.WinForms/WinFormsHelpers.cs | 1 | using Eto.WinForms; | COMMENT |
| LOW | src/Eto.WinForms/Drawing/GraphicsHandler.cs | 1 | COMMENT | |
| LOW | src/Eto.WinForms/Forms/ToolBar/ToolBarHandler.cs | 61 | public void Clear() | COMMENT |
| LOW | src/Shared/BaseBitmapData.cs | 1 | namespace Eto.Shared.Drawing | COMMENT |
| LOW | src/Shared/BaseBitmapData.cs | 21 | /// <param name="data">Pointer to the bitmap data</param> | COMMENT |
| LOW | src/Shared/EmbeddedAssemblyLoader.cs | 1 | using System.Runtime.CompilerServices; | COMMENT |
| LOW | src/Shared/EmbeddedAssemblyLoader.cs | 21 | /// Gets the assembly in which this loader will load assembly resources from | COMMENT |
| LOW | src/Eto.Wpf/WpfHelpers.cs | 1 | using Eto.Wpf.Forms; | COMMENT |
| 1412 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | test/Eto.Test.UnitTests/Program.cs | 158 | ITestApplicationBuilder builder = await Microsoft.Testing.Platform.Builder.TestApplication.CreateBuilderAsync(args); | CODE |
| CRITICAL | test/Eto.Test/UnitTests/Forms/FileDialogTests.cs | 37 | Assert.That(fd.FileName, Is.Null.Or.Empty.Or.EqualTo("Untitled"), "#1"); | CODE |
| CRITICAL | test/Eto.Test/UnitTests/Forms/FileDialogTests.cs | 40 | Assert.That(fd.FileName, Is.Null.Or.Empty.Or.EqualTo("Untitled"), "#2"); | CODE |
| CRITICAL | src/Eto.Mac/Forms/Controls/CheckBoxHandler.cs | 70 | // see Eto.Test.Mac.UnitTests.CheckBoxTests.ButtonShouldNotBeClipped() | COMMENT |
| CRITICAL | src/Eto.Mac/Forms/Controls/RadioButtonHandler.cs | 40 | // see Eto.Test.Mac.UnitTests.RadioButtonTests.ButtonShouldNotBeClipped() | COMMENT |
| CRITICAL⚡ | src/Eto.Gtk/Forms/MouseHandler.cs | 31 | Gdk.Display.Default.DefaultSeat.Pointer.Warp(Gdk.Screen.Default, (int)position.X, (int)position.Y); | CODE |
| CRITICAL⚡ | src/Eto.Gtk/Forms/MouseHandler.cs | 36 | Gdk.Display.Default.DeviceManager.ClientPointer.Warp(Gdk.Screen.Default, (int)position.X, (int)position.Y); | CODE |
| CRITICAL⚡ | src/Eto.Gtk/Forms/MouseHandler.cs | 40 | Gdk.Display.Default.DeviceManager.ClientPointer.Warp(gdkScreen, (int)position.X, (int)position.Y); | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | …ples/Wpf/EmbedEtoInWpf/Properties/Settings.Designer.cs | 3 | // This code was generated by a tool. | COMMENT |
| HIGH | …les/Wpf/EmbedEtoInWpf/Properties/Resources.Designer.cs | 3 | // This code was generated by a tool. | COMMENT |
| HIGH | …rms/EmbedEtoInWinForms/Properties/Settings.Designer.cs | 3 | // This code was generated by a tool. | COMMENT |
| HIGH | …ms/EmbedEtoInWinForms/Properties/Resources.Designer.cs | 3 | // This code was generated by a tool. | COMMENT |
| HIGH | src/Eto.WinForms/Resources.Designer.cs | 3 | // This code was generated by a tool. | COMMENT |
| HIGH | src/Eto.Wpf/Properties/FontDialogResources.Designer.cs | 3 | // This code was generated by a tool. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | src/Eto.Wpf/CustomControls/DragDropLib.cs | 591 | /// that utilize the clipboard and/or drag and drop.</para> | COMMENT |
| MEDIUM | src/Eto/Style.cs | 180 | /// To use this, you would have to add a reference to one of the Eto.*.dll's so that you can utilize | COMMENT |
| MEDIUM | src/Eto/DefaultStyleProvider.cs | 38 | /// It requires you to add a reference to one of the Eto.*.dll's so that you can utilize | COMMENT |
| MEDIUM | src/Eto/Forms/Binding/ObjectBinding.cs | 11 | /// so that you can utilize the <see cref="DirectBinding{T}.DataValueChanged"/> method. | COMMENT |
| MEDIUM | src/Eto/Forms/Binding/ObjectBinding.cs | 52 | /// so that you can utilize the <see cref="DirectBinding{T}.DataValueChanged"/> method. | COMMENT |
| MEDIUM | src/Eto/Forms/Controls/TabControl.cs | 8 | /// It is advised to utilize different methods (e.g. a DocumentControl, listbox or combo box) to switch between many sec | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | src/Eto.iOS/Drawing/BitmapHandler.cs | 9 | public class BitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.iOS/Drawing/IndexedBitmapHandler.cs | 6 | public class IndexedBitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.WinForms/Drawing/BitmapHandler.cs | 34 | public class BitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.WinForms/Drawing/IndexedBitmapHandler.cs | 6 | public class IndexedBitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.Wpf/Drawing/BitmapHandler.cs | 10 | public class BitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.Mac/Drawing/BitmapHandler.cs | 10 | public class BitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.Mac/Drawing/IndexedBitmapHandler.cs | 7 | public class IndexedBitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.Gtk/Drawing/BitmapHandler.cs | 10 | public class BitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.Gtk/Drawing/BitmapHandler.cs | 33 | public class SurfaceBitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.Gtk/Drawing/BitmapHandler.cs | 76 | public class SurfaceRgbBitmapDataHandler : BaseBitmapData | CODE |
| LOW | src/Eto.Gtk/Drawing/IndexedBitmapHandler.cs | 6 | public class IndexedBitmapDataHandler : BaseBitmapData | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …st/Eto.Test/UnitTests/Forms/Layout/StackLayoutTests.cs | 21 | Text = "Neque porro quisquam est qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit...", | CODE |
| LOW | …st/Eto.Test/UnitTests/Forms/Layout/StackLayoutTests.cs | 21 | Text = "Neque porro quisquam est qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit...", | CODE |
| LOW | …t/Eto.Test/UnitTests/Forms/Controls/ScrollableTests.cs | 225 | CreateAndAddDescriptionRow(container, "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras suscipit males | CODE |
| LOW | …t/Eto.Test/UnitTests/Forms/Controls/ScrollableTests.cs | 225 | CreateAndAddDescriptionRow(container, "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras suscipit males | CODE |