Repository Analysis

jay3-yy/BiliPai

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22.3 Moderate AI signal View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of jay3-yy/BiliPai, a Kotlin project with 4,046 GitHub stars. SynthScan v2.0 examined 484,342 lines of code across 2279 source files, recording 1128 pattern matches distributed across 8 syntactic categories. The overall adjusted score of 22.3 places this repository in the Moderate 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).

22.3
Adjusted Score
22.3
Raw Score
100%
Time Factor
2026-08-02
Last Push
4.0K
Stars
Kotlin
Language
484.3K
Lines of Code
2.3K
Files
1.1K
Pattern Hits
2026-08-02
Scan Date
0.47
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

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.

No multi-scan history yet — run the scanner again to build trend data.

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 1079HIGH 3MEDIUM 37LOW 9

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 1128 distinct pattern matches across 8 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 Indicators1079 hits · 10658 pts
SeverityFileLineSnippetContext
CRITICAL…om/Android/purebilibili/feature/home/HomeScreenTest.kt28 com.android.purebilibili.feature.home.components.CategoryTabRow(CODE
CRITICAL…om/Android/purebilibili/feature/home/HomeScreenTest.kt47 com.android.purebilibili.feature.home.components.CategoryTabRow(CODE
CRITICAL…om/Android/purebilibili/feature/home/HomeScreenTest.kt65 com.android.purebilibili.feature.home.components.FrostedBottomBar(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt947 info = com.android.purebilibili.data.model.response.ViewInfo(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt956 com.android.purebilibili.feature.video.subtitle.SubtitleTrackMeta(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt963 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt970 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt992 info = com.android.purebilibili.data.model.response.ViewInfo(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt997 videoshotData = com.android.purebilibili.data.model.response.VideoshotData(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1011 info = com.android.purebilibili.data.model.response.ViewInfo(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1044 info = com.android.purebilibili.data.model.response.ViewInfo(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1059 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1066 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1089 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1096 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1119 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…/feature/video/viewmodel/VideoLoadRequestPolicyTest.kt1126 com.android.purebilibili.feature.video.subtitle.SubtitleCue(CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt58 page = com.android.purebilibili.data.model.response.ReplyPage(count = 56)CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt116 page = com.android.purebilibili.data.model.response.ReplyPage(CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt134 restPage = com.android.purebilibili.data.model.response.ReplyPage(CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt148 restPage = com.android.purebilibili.data.model.response.ReplyPage(CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt186 page = com.android.purebilibili.data.model.response.ReplyPage(count = 230),CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt196 page = com.android.purebilibili.data.model.response.ReplyPage(count = 20),CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt250 restPage = com.android.purebilibili.data.model.response.ReplyPage(CODE
CRITICAL…feature/video/viewmodel/CommentPaginationPolicyTest.kt284 val remote = ReplyData(root = ReplyItem(rpid = 11L, content = com.android.purebilibili.data.model.response.ReplyCODE
CRITICAL…deo/viewmodel/AudioModeCollectionPlaylistPolicyTest.kt73 com.android.purebilibili.data.model.response.Page(cid = 11L, part = "第一集"),CODE
CRITICAL…deo/viewmodel/AudioModeCollectionPlaylistPolicyTest.kt74 com.android.purebilibili.data.model.response.Page(cid = 22L, part = "第二集")CODE
CRITICAL…feature/video/ui/section/VideoPlayerCoverPolicyTest.kt442 com.android.purebilibili.core.ui.transition.shouldUseDetailReturnCoverCrossfade(CODE
CRITICAL…feature/video/ui/section/VideoPlayerCoverPolicyTest.kt448 com.android.purebilibili.core.ui.transition.shouldFadePlayerSurfaceOnDetailReturn(CODE
CRITICAL…ature/video/screen/VideoDetailReturnCoverPolicyTest.kt389 com.android.purebilibili.core.ui.transition.shouldForceCoverOnlyForReturnOwnership(CODE
CRITICAL…ature/video/screen/VideoDetailReturnCoverPolicyTest.kt398 com.android.purebilibili.core.ui.transition.shouldForceCoverOnlyForReturnOwnership(CODE
CRITICAL…li/feature/video/screen/VideoDetailScreenPolicyTest.kt102 arc = com.android.purebilibili.data.model.response.UgcEpisodeArc(CODE
CRITICAL…li/feature/video/screen/VideoDetailScreenPolicyTest.kt109 arc = com.android.purebilibili.data.model.response.UgcEpisodeArc(CODE
CRITICAL…libili/feature/dynamic/DynamicCommentLoadPolicyTest.kt112 basic = com.android.purebilibili.data.model.response.DynamicBasic(CODE
CRITICAL…libili/feature/dynamic/DynamicInteractionPolicyTest.kt394 draw = com.android.purebilibili.data.model.response.DrawMajor(CODE
CRITICAL…libili/feature/dynamic/DynamicInteractionPolicyTest.kt396 com.android.purebilibili.data.model.response.DrawItem(src = "a"),CODE
CRITICAL…libili/feature/dynamic/DynamicInteractionPolicyTest.kt397 com.android.purebilibili.data.model.response.DrawItem(src = "b")CODE
CRITICAL…libili/feature/dynamic/DynamicInteractionPolicyTest.kt422 com.android.purebilibili.data.model.response.OpusPic(url = "x"),CODE
CRITICAL…libili/feature/dynamic/DynamicInteractionPolicyTest.kt423 com.android.purebilibili.data.model.response.OpusPic(url = "y")CODE
CRITICAL…libili/feature/dynamic/DynamicInteractionPolicyTest.kt443 module_stat = com.android.purebilibili.data.model.response.DynamicStatModule(CODE
CRITICAL…libili/feature/dynamic/DynamicInteractionPolicyTest.kt444 like = com.android.purebilibili.data.model.response.StatItem(count = 7)CODE
CRITICAL…eature/dynamic/components/DynamicRichTextPolicyTest.kt295 emoji = com.android.purebilibili.data.model.response.EmojiInfo(CODE
CRITICAL…eature/dynamic/components/DynamicRichTextPolicyTest.kt303 emoji = com.android.purebilibili.data.model.response.EmojiInfo(CODE
CRITICAL…eature/dynamic/components/DynamicRichTextPolicyTest.kt353 emoji = com.android.purebilibili.data.model.response.EmojiInfo(CODE
CRITICAL…eature/dynamic/components/DynamicRichTextPolicyTest.kt374 emoji = com.android.purebilibili.data.model.response.EmojiInfo(CODE
CRITICAL…eature/dynamic/components/DynamicRichTextPolicyTest.kt389 com.android.purebilibili.data.model.response.EmojiInfo(CODE
CRITICAL…eature/dynamic/components/DynamicRichTextPolicyTest.kt399private fun androidx.compose.ui.text.AnnotatedString.hasInlineContent(): Boolean {CODE
CRITICAL…libili/feature/bangumi/BangumiPlaybackUrlPolicyTest.kt45 val params = com.android.purebilibili.data.repository.buildBangumiPlayUrlParams(CODE
CRITICAL…libili/feature/bangumi/BangumiPlaybackUrlPolicyTest.kt71 val params = com.android.purebilibili.data.repository.signBangumiPlayUrlParams(CODE
CRITICAL…libili/feature/bangumi/BangumiPlaybackUrlPolicyTest.kt95 val params = com.android.purebilibili.data.repository.signBangumiPlayUrlParams(CODE
CRITICAL…purebilibili/feature/profile/ProfileSpacePolicyTest.kt200 archive = com.android.purebilibili.data.model.response.SpaceAggregateArchive(CODE
CRITICAL…purebilibili/feature/profile/ProfileSpacePolicyTest.kt272 archive = com.android.purebilibili.data.model.response.SpaceAggregateArchive(CODE
CRITICAL…feature/following/FollowingBatchSelectionPolicyTest.kt125 users = listOf(com.android.purebilibili.data.model.response.FollowingUser(mid = 10L)),CODE
CRITICAL…rebilibili/feature/space/SpaceDynamicLoadPolicyTest.kt161 com.android.purebilibili.data.model.response.SpaceDynamicRichText(CODE
CRITICAL…rebilibili/feature/space/SpaceDynamicLoadPolicyTest.kt165 com.android.purebilibili.data.model.response.SpaceDynamicRichText(CODE
CRITICAL…rebilibili/feature/space/SpaceDynamicLoadPolicyTest.kt200 com.android.purebilibili.data.model.response.SpaceDynamicRichText(CODE
CRITICAL…rebilibili/feature/space/SpaceDynamicLoadPolicyTest.kt204 com.android.purebilibili.data.model.response.SpaceDynamicRichText(CODE
CRITICAL…rebilibili/feature/space/SpaceDynamicLoadPolicyTest.kt237 com.android.purebilibili.data.model.response.SpaceDynamicRichText(CODE
CRITICAL…rebilibili/feature/space/SpaceDynamicLoadPolicyTest.kt292 com.android.purebilibili.data.model.response.SpaceDynamicRichText(CODE
CRITICAL…rebilibili/feature/space/SpaceDynamicLoadPolicyTest.kt325 module_author = com.android.purebilibili.data.model.response.SpaceDynamicAuthor(CODE
1019 more matches not shown…
Decorative Section Separators34 hits · 108 pts
SeverityFileLineSnippetContext
MEDIUM…droid/purebilibili/core/ui/perf/FrameBudgetLintTest.kt200 // ── 冻结于接入棘轮时的实测值,只能调小 ──────────────────────────COMMENT
MEDIUM…ilibili/feature/plugin/dlna/DlnaCastRoutePolicyTest.kt12 // ── toDlnaCastRoute ────────────────────────────────────────────────────────COMMENT
MEDIUM…ilibili/feature/plugin/dlna/DlnaCastRoutePolicyTest.kt35 // ── resolveDlnaRouteSelection ──────────────────────────────────────────────COMMENT
MEDIUM…ilibili/feature/plugin/dlna/DlnaCastRoutePolicyTest.kt63 // ── buildDlnaRouteSnapshot ──────────────────────────────────────────────────COMMENT
MEDIUM…/com/android/purebilibili/core/util/WindowSizeUtils.kt260// ═══════════════════════════════════════════════════════════════════════════COMMENT
MEDIUM…/com/android/purebilibili/core/util/WindowSizeUtils.kt262// ═══════════════════════════════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt15 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt17 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt84 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt86 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt127 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt129 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt140 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt142 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt153 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt155 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt166 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt168 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt187 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt189 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt212 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt214 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt237 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt239 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt255 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…/java/com/android/purebilibili/core/util/EasterEggs.kt257 // ═══════════════════════════════════════════════════COMMENT
MEDIUM…d/purebilibili/feature/settings/ui/SettingsSections.kt80// ═══════════════════════════════════════════════════COMMENT
MEDIUM…d/purebilibili/feature/settings/ui/SettingsSections.kt82// ═══════════════════════════════════════════════════COMMENT
MEDIUM…d/purebilibili/feature/settings/ui/SettingsSections.kt84// ═══════════════════════════════════════════════════COMMENT
MEDIUM…d/purebilibili/feature/settings/ui/SettingsSections.kt86// ═══════════════════════════════════════════════════COMMENT
MEDIUM…d/purebilibili/feature/settings/ui/SettingsSections.kt100// ═══════════════════════════════════════════════════COMMENT
MEDIUM…d/purebilibili/feature/settings/ui/SettingsSections.kt102// ═══════════════════════════════════════════════════COMMENT
MEDIUM…ili/core/ui/components/AdaptivePreferenceComponents.kt102// ═══════════════════════════════════════════════════COMMENT
MEDIUM…ili/core/ui/components/AdaptivePreferenceComponents.kt104// ═══════════════════════════════════════════════════COMMENT
Cross-File Repetition3 hits · 15 pts
SeverityFileLineSnippetContext
HIGH…ebilibili/feature/video/ui/section/VideoInfoSection.kt0((https?|ftp|file)://[-a-za-z0-9+&@#/%?=~_|!:,.;]*[-a-za-z0-9+&@#/%=~_|])STRING
HIGH…ilibili/feature/video/ui/components/ReplyComponents.kt0((https?|ftp|file)://[-a-za-z0-9+&@#/%?=~_|!:,.;]*[-a-za-z0-9+&@#/%=~_|])STRING
HIGH…li/feature/dynamic/components/DynamicRichTextPolicy.kt0((https?|ftp|file)://[-a-za-z0-9+&@#/%?=~_|!:,.;]*[-a-za-z0-9+&@#/%=~_|])STRING
Over-Commented Block6 hits · 6 pts
SeverityFileLineSnippetContext
LOW…bilibili/core/ui/lint/StyleLintAllowlistRatchetTest.kt101 //COMMENT
LOW…/purebilibili/core/cooldown/PlaybackCooldownManager.kt101 if (consecutiveFailures > 0) {COMMENT
LOW…oid/purebilibili/feature/settings/SettingsViewModel.kt941 viewModelScope.launch { COMMENT
LOW…droid/purebilibili/feature/profile/ProfileViewModel.kt801 val params = mutableMapOf<String, String>()COMMENT
LOW…/android/purebilibili/feature/profile/ProfileScreen.kt2721 )COMMENT
LOW…/android/purebilibili/feature/profile/ProfileScreen.kt2741 // So ProfileBackground at root should prefer `currentUiState.user` or fallback?COMMENT
AI Slop Vocabulary2 hits · 4 pts
SeverityFileLineSnippetContext
MEDIUM…rebilibili/core/ui/animation/ParticleDissolveEffect.kt349 // Keep visible until GL view renders first frame (seamless transition)COMMENT
MEDIUM…i/feature/video/screen/VideoDetailScreenStateHolder.kt478 // 🔄 [Seamless Playback] Internal BVID state to support seamless switching in portrait modeCOMMENT
Modern AI Meta-Vocabulary1 hit · 3 pts
SeverityFileLineSnippetContext
MEDIUM…rebilibili/feature/home/HomePullRefreshUiPolicyTest.kt58 // Overlay chrome height via indicatorTopInset (not scaffold default 0).COMMENT
Hyper-Verbose Identifiers2 hits · 2 pts
SeverityFileLineSnippetContext
LOWplugins/tools/bilibili_skin_to_bpskin.py115def build_manifest_and_asset_sources(CODE
LOWplugins/tools/bilibili_skin_to_bpskin.py225def first_existing_package_asset(package_names: set[str], candidates: list[str]) -> str | None:CODE
Unused Imports1 hit · 1 pts
SeverityFileLineSnippetContext
LOWplugins/tools/bilibili_skin_to_bpskin.py9CODE