A lightweight, pure-Swift library for downloading and caching images from the web.
This report summarizes scanner evidence for onevcat/Kingfisher, a Swift project with 24,404 GitHub stars. SynthScan examined 52,721 lines of code across 295 source files, recording 438 pattern matches distributed across 6 syntactic categories. The legacy adjusted pattern signal is 9.0 (Moderate pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Can maintainers explain intent, assumptions, and trade-offs? 426 finding(s).
Are imports declared and package/API names verified? 0 finding(s).
Are wrappers, guards, and repeated structures necessary? 13 finding(s).
Which changes need focused human review? 438 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 438 distinct pattern matches across 6 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. 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 configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | Demo/Demo/Kingfisher-macOS-Demo/ViewController.swift | 1 | // | COMMENT |
| LOW | …emo/Kingfisher-macOS-Demo/GIFHeavyViewController.swift | 1 | // | COMMENT |
| LOW | …Demo/Kingfisher-macOS-Demo/SwiftUIViewController.swift | 1 | // | COMMENT |
| LOW | Demo/Demo/Kingfisher-macOS-Demo/AppDelegate.swift | 1 | // | COMMENT |
| LOW | Demo/Demo/Kingfisher-Demo/AppDelegate.swift | 1 | // | COMMENT |
| LOW | Demo/Demo/Kingfisher-Demo/Resources/ImageLoader.swift | 1 | // | COMMENT |
| LOW | …o/Kingfisher-Demo/SwiftUIViews/AnimatedImageDemo.swift | 1 | // | COMMENT |
| LOW | …/Kingfisher-Demo/SwiftUIViews/GeometryReaderDemo.swift | 1 | // | COMMENT |
| LOW | …Kingfisher-Demo/SwiftUIViews/ProgressiveJPEGDemo.swift | 1 | // | COMMENT |
| LOW | …Kingfisher-Demo/SwiftUIViews/SizingAnimationDemo.swift | 1 | // | COMMENT |
| LOW | Demo/Demo/Kingfisher-Demo/SwiftUIViews/GridDemo.swift | 1 | // | COMMENT |
| LOW | …Demo/Kingfisher-Demo/SwiftUIViews/SingleViewDemo.swift | 1 | // | COMMENT |
| LOW | …Demo/Kingfisher-Demo/SwiftUIViews/LazyVStackDemo.swift | 1 | // | COMMENT |
| LOW | Demo/Demo/Kingfisher-Demo/SwiftUIViews/ListDemo.swift | 1 | // | COMMENT |
| LOW | Demo/Demo/Kingfisher-Demo/SwiftUIViews/MainView.swift | 1 | // | COMMENT |
| LOW | …/Kingfisher-Demo/SwiftUIViews/TransitionViewDemo.swift | 1 | // | COMMENT |
| LOW | …/Kingfisher-Demo/SwiftUIViews/LoadingFailureDemo.swift | 1 | // | COMMENT |
| LOW | …mo/Kingfisher-Demo/SwiftUIViews/PhotosPickerDemo.swift | 1 | // | COMMENT |
| LOW | …/Kingfisher-Demo/SwiftUIViews/LoadTransitionDemo.swift | 1 | // | COMMENT |
| LOW | …isher-Demo/SwiftUIViews/Regression/Issue2035View.swift | 1 | // | COMMENT |
| LOW | …isher-Demo/SwiftUIViews/Regression/Issue1998View.swift | 1 | // | COMMENT |
| LOW | …isher-Demo/SwiftUIViews/Regression/Issue2295View.swift | 1 | // | COMMENT |
| LOW | …isher-Demo/SwiftUIViews/Regression/Issue2352View.swift | 1 | // | COMMENT |
| LOW | …/Extensions/UIViewController+KingfisherOperation.swift | 1 | // | COMMENT |
| LOW | …sher-Demo/ViewControllers/GIFHeavyViewController.swift | 1 | // | COMMENT |
| LOW | …ViewControllers/InfinityCollectionViewController.swift | 1 | // | COMMENT |
| LOW | …iewControllers/IndicatorCollectionViewController.swift | 1 | // | COMMENT |
| LOW | …isher-Demo/ViewControllers/SwiftUIViewController.swift | 1 | // | COMMENT |
| LOW | …ngfisher-Demo/ViewControllers/MainViewController.swift | 1 | // | COMMENT |
| LOW | …r-Demo/ViewControllers/DetailImageViewController.swift | 1 | // | COMMENT |
| LOW | …wControllers/AVAssetImageGeneratorViewController.swift | 1 | // | COMMENT |
| LOW | …emo/ViewControllers/TextAttachmentViewController.swift | 1 | // | COMMENT |
| LOW | …iewControllers/ProcessorCollectionViewController.swift | 1 | // | COMMENT |
| LOW | …mo/ViewControllers/ProgressiveJPEGViewController.swift | 1 | // | COMMENT |
| LOW | …ollers/ImageDataProviderCollectionViewController.swift | 1 | // | COMMENT |
| LOW | …her-Demo/ViewControllers/LivePhotoViewController.swift | 1 | // | COMMENT |
| LOW | …mo/ViewControllers/AutoSizingTableViewController.swift | 1 | // | COMMENT |
| LOW | …emo/ViewControllers/PHPickerResultViewController.swift | 1 | // | COMMENT |
| LOW | …her-Demo/ViewControllers/ImageCollectionViewCell.swift | 1 | // | COMMENT |
| LOW | …ntrollers/HighResolutionCollectionViewController.swift | 1 | // | COMMENT |
| LOW | …/ViewControllers/OrientationImagesViewController.swift | 1 | // | COMMENT |
| LOW | …er-Demo/ViewControllers/TransitionViewController.swift | 1 | // | COMMENT |
| LOW | …Demo/ViewControllers/NormalLoadingViewController.swift | 1 | // | COMMENT |
| LOW | …ingfisher-Demo/ViewControllers/GIFViewController.swift | 1 | // | COMMENT |
| LOW | …isher-watchOS-Demo Extension/InterfaceController.swift | 1 | // | COMMENT |
| LOW | …gfisher-watchOS-Demo Extension/ExtensionDelegate.swift | 1 | // | COMMENT |
| LOW | Demo/Demo/Kingfisher-tvOS-Demo/AppDelegate.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/KingfisherTestHelper.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/ImageModifierTests.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/ImageDownloaderTests.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/RetryStrategyTests.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/KingfisherManagerTests.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/MemoryStorageTests.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/ImageBinderTests.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/ImageCacheTests.swift | 1 | // | COMMENT |
| LOW | Tests/KingfisherTests/ImageCacheTests.swift | 1041 | /// | COMMENT |
| LOW | Tests/KingfisherTests/KingfisherTests-Bridging-Header.h | 1 | // | COMMENT |
| LOW | …ngfisherTests/ImageDataProviderCancellationTests.swift | 1 | // | COMMENT |
| LOW | …ngfisherTests/ImageDataProviderCancellationTests.swift | 21 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | COMMENT |
| LOW | Tests/KingfisherTests/ImageExtensionTests.swift | 1 | // | COMMENT |
| 345 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | CHANGELOG.md | 746 | .onFailure { err in print("Error: \(err)") } | CODE |
| MEDIUM | Demo/Demo/Kingfisher-Demo/SwiftUIViews/ListDemo.swift | 60 | print("Error \(self.index): \(e)") | CODE |
| MEDIUM | …/ViewControllers/OrientationImagesViewController.swift | 66 | .onFailure { err in print("Error: \(err)") } | CODE |
| MEDIUM | …emo/ViewControllers/NetworkMetricsViewController.swift | 235 | print("Error: \(error)") | CODE |
| MEDIUM | …Demo/ViewControllers/NormalLoadingViewController.swift | 65 | .onFailure { err in print("Error: \(err)") } | CODE |
| MEDIUM | Sources/Extensions/PHLivePhotoView+Kingfisher.swift | 132 | /// print("Error: \(error)") | COMMENT |
| MEDIUM | Sources/Extensions/PHLivePhotoView+Kingfisher.swift | 176 | /// print("Error: \(error)") | COMMENT |
| MEDIUM | Sources/Documentation.docc/CHANGELOG.md | 746 | .onFailure { err in print("Error: \(err)") } | CODE |
| MEDIUM | …ation.docc/Resources/code-files/02-ContentView-6.swift | 25 | print("Error: \(error)") | CODE |
| MEDIUM | …on.docc/Resources/code-files/01-ViewController-9.swift | 7 | print("Error: \(error)") | CODE |
| MEDIUM | Sources/Documentation.docc/Topics/Topic_LivePhoto.md | 43 | print("Error: \(error)") | CODE |
| MEDIUM⚡ | Sources/Documentation.docc/Topics/Topic_LivePhoto.md | 88 | print("Error: \(error)") | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | Sources/General/KFOptionsSetter.swift | 125 | /// Kingfisher will utilize the associated ``ImageCache`` object when performing related operations, | COMMENT |
| MEDIUM | Sources/General/KFOptionsSetter.swift | 162 | /// Kingfisher will utilize the specified ``ImageDownloader`` instance to download requested images. | COMMENT |
| MEDIUM | Sources/General/KingfisherManager.swift | 137 | /// You can utilize this class to retrieve an image via a specified URL from the web or cache. | COMMENT |
| MEDIUM | Sources/General/KingfisherOptionsInfo.swift | 35 | /// You can utilize the enum of option items with values to control certain behaviors of Kingfisher. | COMMENT |
| MEDIUM | Sources/General/KingfisherOptionsInfo.swift | 45 | /// Kingfisher will utilize the associated ``ImageCache`` object when performing related operations, such as | COMMENT |
| MEDIUM | Sources/General/KingfisherOptionsInfo.swift | 64 | /// Kingfisher will utilize the associated ``ImageDownloader`` object to download the requested images. | COMMENT |
| MEDIUM | Sources/General/KingfisherOptionsInfo.swift | 269 | /// for all items. If this option is set, the ``MemoryStorage/Backend`` will utilize the associated value to | COMMENT |
| MEDIUM | Sources/General/KingfisherOptionsInfo.swift | 288 | /// for all items. If this option is set, the ``DiskStorage/Backend`` will utilize the associated value to override | COMMENT |
| MEDIUM | Sources/Networking/SessionDataTask.swift | 31 | /// Essentially, a ``SessionDataTask`` wraps a `URLSessionDataTask` and manages the download data. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | Tests/KingfisherTests/StaleCacheTests.swift | 591 | // Step 1: Start url1's retrieval. Its ioQueue block will enter the | COMMENT |
| LOW⚡ | Tests/KingfisherTests/StaleCacheTests.swift | 607 | // Step 2: Wait (on background) for url1's serializer to start, | COMMENT |
| LOW⚡ | Tests/KingfisherTests/StaleCacheTests.swift | 613 | // Step 3: url1's token is now cancelled by the second setImage. | COMMENT |
| LOW⚡ | Tests/KingfisherTests/StaleCacheTests.swift | 623 | // Step 4: Let url1's serializer proceed. CHECK 3 will detect | COMMENT |
| LOW⚡ | Sources/Documentation.docc/Topics/Topic_LivePhoto.md | 61 | ### Step 1: Import Required Frameworks and Set Up PHLivePhotoView | COMMENT |
| LOW⚡ | Sources/Documentation.docc/Topics/Topic_LivePhoto.md | 71 | ### Step 2: Prepare URLs | COMMENT |
| LOW⚡ | Sources/Documentation.docc/Topics/Topic_LivePhoto.md | 79 | ### Step 3: Load the Live Photo | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | Tests/KingfisherTests/StaleCacheTests.swift | 591 | // Step 1: Start url1's retrieval. Its ioQueue block will enter the | COMMENT |
| LOW⚡ | Tests/KingfisherTests/StaleCacheTests.swift | 607 | // Step 2: Wait (on background) for url1's serializer to start, | COMMENT |
| LOW⚡ | Tests/KingfisherTests/StaleCacheTests.swift | 613 | // Step 3: url1's token is now cancelled by the second setImage. | COMMENT |
| LOW⚡ | Tests/KingfisherTests/StaleCacheTests.swift | 623 | // Step 4: Let url1's serializer proceed. CHECK 3 will detect | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | Sources/Networking/ImageDataProcessor.swift | 33 | final class ImageDataProcessor: Sendable { | CODE |