Repository Analysis

Suwayomi/Suwayomi-Server

A rewrite of Tachiyomi for the Desktop

7.2 Low AI signal View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of Suwayomi/Suwayomi-Server, a Java project with 7,272 GitHub stars. SynthScan v2.0 examined 152,219 lines of code across 854 source files, recording 113 pattern matches distributed across 5 syntactic categories. The overall adjusted score of 7.2 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).

7.2
Adjusted Score
7.2
Raw Score
100%
Time Factor
2026-07-13
Last Push
7.3K
Stars
Java
Language
152.2K
Lines of Code
854
Files
113
Pattern Hits
2026-07-14
Scan Date
0.09
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 77HIGH 1MEDIUM 0LOW 35

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 113 distinct pattern matches across 5 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.

Hallucination Indicators77 hits · 1050 pts
SeverityFileLineSnippetContext
CRITICAL…achidesk/graphql/subscriptions/DownloadSubscription.kt51 suwayomi.tachidesk.manga.impl.download.model.DownloadUpdates(CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java24 return new Calendar(com.ibm.icu.util.Calendar.getInstance());CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java28 return com.ibm.icu.util.Calendar.getInstance(zone);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java32 return new Calendar(com.ibm.icu.util.Calendar.getInstance(aLocale));CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java36 return com.ibm.icu.util.Calendar.getInstance(locale);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java40 return com.ibm.icu.util.Calendar.getInstance(zone, aLocale);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java44 return com.ibm.icu.util.Calendar.getInstance(zone, locale);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java48 return com.ibm.icu.util.Calendar.getAvailableLocales();CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java58 return com.ibm.icu.util.Calendar.getAvailableULocales();CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java62 return com.ibm.icu.util.Calendar.getKeywordValuesForLocale(key, locale, commonlyUsed);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java156 return com.ibm.icu.util.Calendar.getDateTimePattern(cal, uLocale, dateStyle);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/Calendar.java267 return com.ibm.icu.util.Calendar.getWeekDataForRegion(region);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java91 return new TimeZone(com.ibm.icu.util.TimeZone.getTimeZone(ID));CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java95 return com.ibm.icu.util.TimeZone.getFrozenTimeZone(ID);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java99 return com.ibm.icu.util.TimeZone.getTimeZone(ID, type);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java103 com.ibm.icu.util.TimeZone.setDefaultTimeZoneType(type);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java107 return com.ibm.icu.util.TimeZone.getDefaultTimeZoneType();CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java111 return com.ibm.icu.util.TimeZone.getAvailableIDs(zoneType, region, rawOffset);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java115 return com.ibm.icu.util.TimeZone.getAvailableIDs(rawOffset);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java119 return com.ibm.icu.util.TimeZone.getAvailableIDs(country);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java123 return com.ibm.icu.util.TimeZone.getAvailableIDs();CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java127 return com.ibm.icu.util.TimeZone.countEquivalentIDs(id);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java131 return com.ibm.icu.util.TimeZone.getEquivalentID(id, index);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java135 return new TimeZone(com.ibm.icu.util.TimeZone.getDefault());CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java139 com.ibm.icu.util.TimeZone.setDefault(tz);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java162 return com.ibm.icu.util.TimeZone.getTZDataVersion();CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java166 return com.ibm.icu.util.TimeZone.getCanonicalID(id);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java170 return com.ibm.icu.util.TimeZone.getCanonicalID(id, isSystemID);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java174 return com.ibm.icu.util.TimeZone.getRegion(id);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java178 return com.ibm.icu.util.TimeZone.getWindowsID(id);CODE
CRITICAL…/nulldev/androidcompat/replace/java/util/TimeZone.java182 return com.ibm.icu.util.TimeZone.getIDForWindowsID(winid, region);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java174 return com.ibm.icu.text.DateFormat.getTimeInstance(style, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java178 return com.ibm.icu.text.DateFormat.getDateInstance(style, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java182 return com.ibm.icu.text.DateFormat.getDateTimeInstance(dateStyle, timeStyle, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java186 return com.ibm.icu.text.DateFormat.getAvailableLocales();CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java190 return com.ibm.icu.text.DateFormat.getAvailableULocales();CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java195 com.ibm.icu.util.Calendar cal = com.ibm.icu.util.Calendar.getInstance(com.ibm.icu.util.TimeZone.getTimeZone(newCCODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java251 return com.ibm.icu.text.DateFormat.getDateInstance(cal, dateStyle, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java255 return com.ibm.icu.text.DateFormat.getDateInstance(cal, dateStyle, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java259 return com.ibm.icu.text.DateFormat.getTimeInstance(cal, timeStyle, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java263 return com.ibm.icu.text.DateFormat.getTimeInstance(cal, timeStyle, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java267 return com.ibm.icu.text.DateFormat.getDateTimeInstance(cal, dateStyle, timeStyle, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java271 return com.ibm.icu.text.DateFormat.getDateTimeInstance(cal, dateStyle, timeStyle, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java275 return com.ibm.icu.text.DateFormat.getInstance(cal, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java279 return com.ibm.icu.text.DateFormat.getInstance(cal, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java283 return com.ibm.icu.text.DateFormat.getInstance(cal);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java287 return com.ibm.icu.text.DateFormat.getDateInstance(cal, dateStyle);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java291 return com.ibm.icu.text.DateFormat.getTimeInstance(cal, timeStyle);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java295 return com.ibm.icu.text.DateFormat.getDateTimeInstance(cal, dateStyle, timeStyle);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java299 return com.ibm.icu.text.DateFormat.getInstanceForSkeleton(skeleton);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java303 return com.ibm.icu.text.DateFormat.getInstanceForSkeleton(skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java307 return com.ibm.icu.text.DateFormat.getInstanceForSkeleton(skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java311 return com.ibm.icu.text.DateFormat.getInstanceForSkeleton(cal, skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java315 return com.ibm.icu.text.DateFormat.getInstanceForSkeleton(cal, skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java319 return com.ibm.icu.text.DateFormat.getPatternInstance(skeleton);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java323 return com.ibm.icu.text.DateFormat.getPatternInstance(skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java327 return com.ibm.icu.text.DateFormat.getPatternInstance(skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java331 return com.ibm.icu.text.DateFormat.getPatternInstance(cal, skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java335 return com.ibm.icu.text.DateFormat.getPatternInstance(cal, skeleton, locale);CODE
CRITICAL…/androidcompat/replace/java/text/SimpleDateFormat.java61 return new SimpleDateFormat(com.ibm.icu.text.SimpleDateFormat.getInstance(formatConfig));CODE
17 more matches not shown…
Over-Commented Block31 hits · 31 pts
SeverityFileLineSnippetContext
LOW…in/suwayomi/tachidesk/manga/impl/update/TestUpdater.kt1package suwayomi.tachidesk.manga.impl.updateCOMMENT
LOW…omi/tachidesk/manga/controller/UpdateControllerTest.kt1package suwayomi.tachidesk.manga.controllerCOMMENT
LOW…omi/tachidesk/manga/controller/UpdateControllerTest.kt21// import suwayomi.tachidesk.manga.model.table.MangaTableCOMMENT
LOW…omi/tachidesk/manga/controller/UpdateControllerTest.kt41// Category.createCategory("foo")COMMENT
LOW…omi/tachidesk/manga/controller/UpdateControllerTest.kt61// UpdateController.categoryUpdate(ctx)COMMENT
LOW…omi/tachidesk/manga/controller/UpdateControllerTest.kt81// CategoryMangaTable,COMMENT
LOW…kotlin/suwayomi/tachidesk/graphql/RequestParserTest.kt21 // |singleUpload(file: ${'$'}file) { id } }", "variables": { "file": null }COMMENT
LOW…kotlin/suwayomi/tachidesk/graphql/RequestParserTest.kt41 // runTest {COMMENT
LOW…kotlin/suwayomi/tachidesk/graphql/RequestParserTest.kt61 // assertIs<GraphQLRequest>(test)COMMENT
LOW…kotlin/suwayomi/tachidesk/graphql/RequestParserTest.kt81 // """.trimIndent()COMMENT
LOW…kotlin/suwayomi/tachidesk/graphql/RequestParserTest.kt101 // assertIs<List<*>>(files)COMMENT
LOW…/main/kotlin/suwayomi/tachidesk/server/JavalinSetup.kt281 }COMMENT
LOWserver/src/main/kotlin/eu/kanade/tachiyomi/App.kt21// if (BuildConfig.DEBUG) {COMMENT
LOWserver/src/main/kotlin/eu/kanade/tachiyomi/AppModule.kt81// rxAsync { get<PreferencesHelper>() }COMMENT
LOW…in/kotlin/eu/kanade/tachiyomi/network/NetworkHelper.kt101COMMENT
LOW…/main/java/android/database/sqlite/SQLiteDatabase.java81 // This lock guards all of the shared state of the database, such as itsCOMMENT
LOW…mpat/src/main/java/android/webkit/WebViewProvider.java361COMMENT
LOWAndroidCompat/src/main/java/android/webkit/WebView.java1141 @OverrideCOMMENT
LOWAndroidCompat/src/main/java/android/webkit/WebView.java1161 // }COMMENT
LOWAndroidCompat/src/main/java/android/util/Base64.java341 // Using local variables makes the decoder about 12%COMMENT
LOWAndroidCompat/src/main/java/android/view/ViewGroup.java1761 // @NonNull int[] supportedFormats,COMMENT
LOWAndroidCompat/src/main/java/android/view/View.java1781 public void onProvideAutofillVirtualStructure(ViewStructure structure, int flags) {COMMENT
LOWAndroidCompat/src/main/java/android/view/View.java5501COMMENT
LOWAndroidCompat/src/main/java/android/view/View.java5521 // }COMMENT
LOWAndroidCompat/src/main/java/android/view/View.java5641 // public ViewTranslationCallback getViewTranslationCallback() {COMMENT
LOWAndroidCompat/src/main/java/android/view/View.java5661COMMENT
LOWAndroidCompat/src/main/java/android/view/View.java5741 // public void reportAppJankStats(@NonNull AppJankStats appJankStats) {COMMENT
LOW…droidCompat/src/main/java/android/os/MessageQueue.java241// return;COMMENT
LOWAndroidCompat/src/main/java/android/os/Looper.java321 }COMMENT
LOWAndroidCompat/src/main/java/libcore/net/MimeUtils.java21import java.util.Map;COMMENT
LOWscripts/bundler.sh281 #wget -qO - https://dl.winehq.org/wine-builds/winehq.key \COMMENT
Synthetic Comment Markers1 hit · 8 pts
SeverityFileLineSnippetContext
HIGH…n/java/kotlinx/coroutines/android/HandlerDispatcher.kt179 // inlining `Boolean.hashCode()` for Android compatibility, as requested by Animal SnifferCOMMENT
Hyper-Verbose Identifiers3 hits · 3 pts
SeverityFileLineSnippetContext
LOW…n/kotlin/suwayomi/tachidesk/global/impl/KcefWebView.kt195 private inner class RequestHandler : CefRequestHandlerAdapter() {CODE
LOW…yz/nulldev/androidcompat/webkit/KcefWebViewProvider.kt430 private inner class ResourceRequestHandler : CefResourceRequestHandlerAdapter() {CODE
LOW…yz/nulldev/androidcompat/webkit/KcefWebViewProvider.kt484 private inner class RequestHandler : CefRequestHandlerAdapter() {CODE
Fake / Example Data1 hit · 1 pts
SeverityFileLineSnippetContext
LOW…n/kotlin/suwayomi/tachidesk/opds/model/OpdsEntryXml.kt43 val publisher: String? = null, // Agent - Example: "Random House" or "John Doe"CODE