📷 A composable image editor using Core Image and Metal.
This report presents the forensic synthetic code analysis of FluidGroup/Brightroom, a Swift project with 3,652 GitHub stars. SynthScan v2.0 examined 39,669 lines of code across 201 source files, recording 118 pattern matches distributed across 2 syntactic categories. The overall adjusted score of 3.0 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).
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 118 distinct pattern matches across 2 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 | swiftgen.yml | 1 | ## Note: all of the config entries below are just examples with placeholders. Be sure to edit and adjust to your needs w | COMMENT |
| LOW | swiftgen.yml | 21 | ## - Especially the `forceProvidesNamespaces: true` param forces to create sub-namespace for each folder/group used in | COMMENT |
| LOW | swiftgen.yml | 41 | # output: IB-Scenes+Generated.swift | COMMENT |
| LOW | Sources/BrightroomEngine/BrightroomEngine.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/DataSource/ImageProvider.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/DataSource/ImageSource.swift | 1 | // | COMMENT |
| LOW | …/BrightroomEngine/Core/EditingStack.CropModifier.swift | 1 | // | COMMENT |
| LOW | …rces/BrightroomEngine/Core/EditingDocumentBridge.swift | 1 | // | COMMENT |
| LOW | …rces/BrightroomEngine/Core/EditingDocumentBridge.swift | 41 | case throughFinalCropExclusive | COMMENT |
| LOW | Sources/BrightroomEngine/Core/EditingStack.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Core/ParameterRange.swift | 1 | // | COMMENT |
| LOW | …s/BrightroomEngine/Core/LocalAdjustmentRendering.swift | 1 | // | COMMENT |
| LOW | …s/BrightroomEngine/Core/LocalAdjustmentRendering.swift | 121 | COMMENT | |
| LOW | Sources/BrightroomEngine/Core/EditingStack.Edit.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Core/EditingStack.Edit.swift | 21 | COMMENT | |
| LOW | …es/BrightroomEngine/Core/EditingStackFeatureTree.swift | 1 | // | COMMENT |
| LOW | …es/BrightroomEngine/Core/EditingStackFeatureTree.swift | 41 | case output | COMMENT |
| LOW | Sources/BrightroomEngine/Library/Geometry.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Library/EngineLog.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Library/CIImage+.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Library/EngineSanitizer.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Library/CropGeometry.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Library/CropGeometry.swift | 21 | COMMENT | |
| LOW | Sources/BrightroomEngine/Library/InternalUtils.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Library/Optional+.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Engine/CoreGraphics+.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Engine/RenderCrop.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomEngine/Engine/ImageTool.swift | 1 | // | COMMENT |
| LOW | …BrightroomEngine/Engine/EditingSourcePreparation.swift | 1 | import CoreImage | COMMENT |
| LOW | …BrightroomEngine/Engine/EditingSourcePreparation.swift | 21 | /// `MTKTextureLoader`, which quantized to 8-bit, could not handle 16-bit | COMMENT |
| LOW | …BrightroomEngine/Engine/EditingSourcePreparation.swift | 41 | /// produced here lives on the same device the canvas samples it from (iOS has | COMMENT |
| LOW | …/BrightroomEngine/Engine/BrightRoomImageRenderer.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomUI/Shared/BrightroomUI.swift | 1 | // | COMMENT |
| LOW | …rces/BrightroomUI/Shared/Utils/CropEditingState+.swift | 1 | // | COMMENT |
| LOW | Sources/BrightroomUI/Shared/Utils/EditorLog.swift | 1 | // | COMMENT |
| LOW | …oomUI/Shared/Components/LoadingBlurryOverlayView.swift | 1 | // | COMMENT |
| LOW | …I/Shared/Components/Crop/CropViewMaskingDefaults.swift | 1 | import UIKit | COMMENT |
| LOW | …I/Shared/Components/Crop/CropViewMaskingDefaults.swift | 41 | COMMENT | |
| LOW | …ghtroomUI/Shared/Components/Crop/CropDisplayView.swift | 1 | import CoreGraphics | COMMENT |
| LOW | …omUI/Shared/Components/Crop/CropViewFeatureFocus.swift | 1 | // | COMMENT |
| LOW | …omUI/Shared/Components/Crop/CropViewFeatureFocus.swift | 21 | COMMENT | |
| LOW | …omUI/Shared/Components/Crop/CropViewFeatureFocus.swift | 41 | /// - Points before the final crop show the pre-crop image domain. Partial | COMMENT |
| LOW | …omUI/Shared/Components/Crop/CropViewFeatureFocus.swift | 61 | /// `EditingCanvasStrokeCommitPipeline` semantics. | COMMENT |
| LOW | …/Shared/Components/Crop/CropView._CropScrollView.swift | 1 | // | COMMENT |
| LOW | …htroomUI/Shared/Components/Crop/CropEditingState.swift | 1 | // | COMMENT |
| LOW | …htroomUI/Shared/Components/Crop/CropEditingState.swift | 21 | COMMENT | |
| LOW | …ces/BrightroomUI/Shared/Components/Crop/CropView.swift | 1 | // | COMMENT |
| LOW | …ces/BrightroomUI/Shared/Components/Crop/CropView.swift | 21 | COMMENT | |
| LOW | …ces/BrightroomUI/Shared/Components/Crop/CropView.swift | 41 | /// crop frame while showing the result of earlier Tool Features. Mask editing, | COMMENT |
| LOW | …ces/BrightroomUI/Shared/Components/Crop/CropView.swift | 961 | self.debugLogScrollViewAdjustment("did-zoom") | COMMENT |
| LOW | …ces/BrightroomUI/Shared/Components/Crop/CropView.swift | 1581 | /// animation state. Used at zoom-bounce-ride start, where the model | COMMENT |
| LOW | …ces/BrightroomUI/Shared/Components/Crop/CropView.swift | 1681 | // while the scroll view's model values are already clamped to the minimum | COMMENT |
| LOW | …ces/BrightroomUI/Shared/Components/Crop/CropView.swift | 2281 | ) | COMMENT |
| LOW | …mponents/Crop/CropView._InteractiveCropGuideView.swift | 1 | // | COMMENT |
| LOW | …BrightroomUI/Shared/Components/Crop/CropRotation.swift | 1 | // | COMMENT |
| LOW | …ghtroomUI/Shared/Components/Crop/SwiftUICropView.swift | 1 | // | COMMENT |
| LOW | …Components/SteppedSlider/BrightroomSteppedSlider.swift | 1 | // | COMMENT |
| LOW | …ed/Components/EditingCanvas/EditingCanvasMTKView.swift | 1101 | /// changes and is dropped separately by `invalidatePreparedContentLayers` | COMMENT |
| LOW | …/EditingCanvas/EditingCanvasStrokeCommitPipeline.swift | 1 | import Foundation | COMMENT |
| LOW | …d/Components/EditingCanvas/EditingCanvasGeometry.swift | 41 | // the canvas clamp Display-P3 to sRGB. The four contracts below keep wide | COMMENT |
| 57 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | Dev/Bundle/LUTs/Import LUT/ActionRequestHandler.swift | 12 | class ActionRequestHandler: NSObject, NSExtensionRequestHandling { | CODE |