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AI Slop Code Risk Monitor

ReactiveX/RxSwift

SlopCodeMonitor badge for ReactiveX/RxSwift Adjusted legacy signal; badge bands: 25 / 50 / 75 (different from dashboard bands).

Reactive Programming in Swift

1.1 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for ReactiveX/RxSwift, a Swift project with 24,631 GitHub stars. SynthScan examined 245,452 lines of code across 1171 source files, recording 233 pattern matches distributed across 6 syntactic categories. The legacy adjusted pattern signal is 1.1 (Low 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.

1.1
Adjusted Signal
1.1
Raw Pattern Score
100%
Time Factor
2026-09-04
Last Push
24.6K
Stars
Swift
Language
245.5K
Lines of Code
1.2K
Files
233
Pattern Hits
2026-10-31
Scan Date
0.00
HC Hit Rate

Risk Review · Payload v1

Use each vector to guide manual verification of the underlying findings.

Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.

Cognitive Ownership Risk 4.6/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 225 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.4/100 · LOW

Are imports declared and package/API names verified? 2 finding(s).

Agent Over-Engineering Ratio 0.3/100 · LOW

Are wrappers, guards, and repeated structures necessary? 9 finding(s).

PR Review Velocity Impact 5.3/100 · LOW

Which changes need focused human review? 233 finding(s).

What These Metrics Mean

Adjusted Signal
Legacy pattern score normalized per 1,000 scanned lines and multiplied by the repository-level time factor. It is not an estimate of AI authorship.
Raw Pattern Score
Sum of severity- and context-weighted pattern findings before applying the time factor.
Time Factor
A coarse multiplier based on repository last-push metadata. It does not identify when individual code was written.
Pattern Hits
Count of configured pattern findings. Review each location and surrounding code before acting.
HC Hit Rate
High- and critical-severity findings per scanned file. Severity is a configured detector weight, not proof of a vulnerability or authorship.
Lines / Files
Scan coverage denominators used by the legacy normalized score.

Pattern-Signal History

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.

Severity Breakdown

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.

CRITICAL 2HIGH 0MEDIUM 8LOW 223

Directory Score Breakdown

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.

Pattern Findings

The scanner identified 233 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.

Over-Commented Block212 hits · 212 pts
SeverityFileLineSnippetContext
LOWRxCocoa/RxCocoa.h1//COMMENT
LOWRxCocoa/RxCocoa.swift1//COMMENT
LOWRxCocoa/macOS/NSTextView+Rx.swift1//COMMENT
LOWRxCocoa/macOS/NSTextField+Rx.swift1//COMMENT
LOWRxCocoa/Traits/ControlProperty.swift61 /// - parameter observer: Observer to subscribe to property values.COMMENT
LOWRxCocoa/Traits/Driver/Infallible+Driver.swift1//COMMENT
LOWRxCocoa/Traits/Driver/ControlEvent+Driver.swift1//COMMENT
LOWRxCocoa/Traits/Driver/ControlProperty+Driver.swift1//COMMENT
LOW…Traits/SharedSequence/SharedSequence+Concurrency.swift1//COMMENT
LOWRxCocoa/Traits/Signal/ControlEvent+Signal.swift1//COMMENT
LOWRxCocoa/Runtime/_RXObjCRuntime.m1//COMMENT
LOWRxCocoa/Runtime/_RXObjCRuntime.m61#define RX_ARG_int(value) [NSNumber numberWithInt:value]COMMENT
LOWRxCocoa/Runtime/_RXObjCRuntime.m361#define BUILD_ARG_WRAPPER(type) RX_ARG_ ## type //COMMENT
LOWRxCocoa/Runtime/_RX.m1//COMMENT
LOWRxCocoa/Runtime/include/_RXKVOObserver.h1//COMMENT
LOWRxCocoa/Runtime/include/_RXObjCRuntime.h1//COMMENT
LOWRxCocoa/Runtime/include/_RX.h1//COMMENT
LOWRxCocoa/Runtime/include/_RX.h21# define DLOG(...)COMMENT
LOWRxCocoa/Runtime/include/_RX.h41#define RX_CAT2(_1, _2) _RX_CAT2(_1, _2)COMMENT
LOWRxCocoa/Runtime/include/_RX.h81COMMENT
LOWRxCocoa/Runtime/include/RxCocoaRuntime.h1//COMMENT
LOWRxCocoa/Foundation/KVORepresentable.swift1//COMMENT
LOWRxCocoa/Foundation/NSObject+Rx.swift1//COMMENT
LOWRxCocoa/Foundation/URLSession+Rx.swift1//COMMENT
LOWRxCocoa/iOS/UIScrollView+Rx.swift1//COMMENT
LOWRxCocoa/iOS/UIApplication+Rx.swift1//COMMENT
LOWRxCocoa/iOS/NSTextStorage+Rx.swift1//COMMENT
LOWRxCocoa/iOS/UISearchBar+Rx.swift1//COMMENT
LOWRxCocoa/iOS/UINavigationController+Rx.swift1//COMMENT
LOWRxCocoa/iOS/UIControl+Rx.swift1//COMMENT
LOWRxCocoa/iOS/Events/ItemEvents.swift1//COMMENT
LOWRxCocoa/iOS/Protocols/RxPickerViewDataSourceType.swift1//COMMENT
LOW…coa/iOS/Protocols/RxCollectionViewDataSourceType.swift1//COMMENT
LOWRxCocoa/iOS/Protocols/RxTableViewDataSourceType.swift1//COMMENT
LOWRxCocoa/Common/DelegateProxy.swift1//COMMENT
LOWRxCocoa/Common/RxCocoaObjCRuntimeError+Extensions.swift1//COMMENT
LOWRxCocoa/Common/RxCocoaObjCRuntimeError+Extensions.swift61 /// `object_setClass` is performed on them.COMMENT
LOWRxCocoa/Common/TextInput.swift1//COMMENT
LOWRxCocoa/Common/SectionedViewDataSourceType.swift1//COMMENT
LOWRxCocoa/Common/DelegateProxyType.swift81 ///COMMENT
LOWRxCocoa/Common/DelegateProxyType.swift101COMMENT
LOWRxCocoa/Common/DelegateProxyType.swift161 ///COMMENT
LOWDocumentation/Examples.md161 }COMMENT
LOWRxSwift/Cancelable.swift1//COMMENT
LOWRxSwift/GroupedObservable.swift1//COMMENT
LOWRxSwift/GroupedObservable.swift21///COMMENT
LOWRxSwift/GroupedObservable.swift41 /// All elements emitted by this observable share this common key.COMMENT
LOWRxSwift/GroupedObservable.swift61 /// This will print:COMMENT
LOWRxSwift/GroupedObservable.swift81 ///COMMENT
LOWRxSwift/GroupedObservable.swift101 /// This allows you to work with the sequence without directly interacting with the key.COMMENT
LOWRxSwift/RxMutableBox.swift1//COMMENT
LOWRxSwift/Event.swift1//COMMENT
LOWRxSwift/Observable+Concurrency.swift1//COMMENT
LOWRxSwift/AnyObserver.swift1//COMMENT
LOWRxSwift/Disposable.swift1//COMMENT
LOWRxSwift/ObserverType.swift1//COMMENT
LOWRxSwift/ObservableConvertibleType.swift1//COMMENT
LOWRxSwift/Observable.swift1//COMMENT
LOWRxSwift/SchedulerType.swift1//COMMENT
LOWRxSwift/Rx.swift1//COMMENT
152 more matches not shown…
Hallucination Indicators2 hits · 20 pts
SeverityFileLineSnippetContext
CRITICAL…ositories/GitHubSearchRepositoriesViewController.swift57 searchText: searchBar.rx.text.orEmpty.changed.asSignal().throttle(.milliseconds(300)),CODE
CRITICALdocs/js/jquery.min.js2!function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):fCODE
Excessive Try-Catch Wrapping6 hits · 12 pts
SeverityFileLineSnippetContext
MEDIUMDocumentation/Traits.md102 print("Error: ", error)CODE
MEDIUMDocumentation/Traits.md115 print("Error: ", error)CODE
MEDIUM…rces/RxCollectionViewSectionedAnimatedDataSource.swift90 print("Error while binding data animated: \(e)\nFallback to normal `reloadData` behavior.")CODE
MEDIUM…ror_Handling_Operators.xcplaygroundpage/Contents.swift82 print("Error encountered")CODE
MEDIUM…ror_Handling_Operators.xcplaygroundpage/Contents.swift117 print("Error encountered")CODE
MEDIUM…es/Debugging_Operators.xcplaygroundpage/Contents.swift29 print("Error encountered")CODE
Example Usage Blocks8 hits · 12 pts
SeverityFileLineSnippetContext
LOWRxSwift/GroupedObservable.swift14/// Example usage:COMMENT
LOWRxSwift/GroupedObservable.swift52 /// Example usage:COMMENT
LOWRxSwift/GroupedObservable.swift77 /// Example usage:COMMENT
LOWRxSwift/GroupedObservable.swift105 /// Example usage:COMMENT
LOWSources/RxSwift/GroupedObservable.swift14/// Example usage:COMMENT
LOWSources/RxSwift/GroupedObservable.swift52 /// Example usage:COMMENT
LOWSources/RxSwift/GroupedObservable.swift77 /// Example usage:COMMENT
LOWSources/RxSwift/GroupedObservable.swift105 /// Example usage:COMMENT
AI Slop Vocabulary2 hits · 6 pts
SeverityFileLineSnippetContext
MEDIUMRxCocoa/Runtime/_RXObjCRuntime.m673 // To make `deallocating` as robust as possible, original implementation will be replaced.COMMENT
MEDIUMSources/RxCocoaRuntime/_RXObjCRuntime.m673 // To make `deallocating` as robust as possible, original implementation will be replaced.COMMENT
Hyper-Verbose Identifiers3 hits · 3 pts
SeverityFileLineSnippetContext
LOWdocs/js/typeahead.jquery.js622 hasQueryChangedSinceLastFocus: function hasQueryChangedSinceLastFocus() {CODE
LOWdocs/js/typeahead.jquery.js1012 selectableRelativeToCursor: function selectableRelativeToCursor(delta) {CODE
LOWscripts/common.sh177function exitIfLastStatusWasUnsuccessful() {CODE