Repository Analysis

didi/booster

🚀Optimizer for mobile applications

31.4 Strong AI signal View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of didi/booster, a Kotlin project with 5,068 GitHub stars. SynthScan v2.0 examined 35,450 lines of code across 455 source files, recording 135 pattern matches distributed across 2 syntactic categories. The overall adjusted score of 31.4 places this repository in the Strong 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).

31.4
Adjusted Score
31.4
Raw Score
100%
Time Factor
2026-08-09
Last Push
5.1K
Stars
Kotlin
Language
35.5K
Lines of Code
455
Files
135
Pattern Hits
2026-08-09
Scan Date
0.29
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 134HIGH 0MEDIUM 0LOW 1

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 135 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.

Hallucination Indicators134 hits · 1112 pts
SeverityFileLineSnippetContext
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java705 // Construct using com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol.newBuilder()COMMENT
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1597 // Construct using com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.newBuilder()COMMENT
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java219 config_ = input.readMessage(com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.parser(), eCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java245 input.readMessage(com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol.parser(), extensiCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java391 source_ = input.readMessage(com.didiglobal.booster.aapt2.Resources.SourcePosition.parser(), extensionRegCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java501 return source_ == null ? com.didiglobal.booster.aapt2.Resources.SourcePosition.getDefaultInstance() : source_;CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java742 return com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol.getDefaultInstance();CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java756 com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol result = new com.didiglobal.booster.aapt2.RCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java810 if (other == com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol.getDefaultInstance()) return tCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java967 return source_ == null ? com.didiglobal.booster.aapt2.Resources.SourcePosition.getDefaultInstance() : sourceCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1021 com.didiglobal.booster.aapt2.Resources.SourcePosition.newBuilder(source_).mergeFrom(value).buildPartial(CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1074 com.didiglobal.booster.aapt2.Resources.SourcePosition.getDefaultInstance() : source_;CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1116 DEFAULT_INSTANCE = new com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol();CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1220 return config_ == null ? com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.getDefaultInstance() :CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1257 com.didiglobal.booster.aapt2.Resources.FileReference.Type result = com.didiglobal.booster.aapt2.Resources.FileRefeCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1389 if (type_ != com.didiglobal.booster.aapt2.Resources.FileReference.Type.UNKNOWN.getNumber()) {CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1414 if (type_ != com.didiglobal.booster.aapt2.Resources.FileReference.Type.UNKNOWN.getNumber()) {CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1645 return com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.getDefaultInstance();CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1659 com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile result = new com.didiglobal.booster.aapt2.ResourcesICODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1725 if (other == com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.getDefaultInstance()) return this;CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1916 return config_ == null ? com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.getDefaultInstanceCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java1970 com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.newBuilder(config_).mergeFrom(value).buCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2023 com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.getDefaultInstance() : config_;CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2085 com.didiglobal.booster.aapt2.Resources.FileReference.Type result = com.didiglobal.booster.aapt2.Resources.FileReCODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2403 com.google.protobuf.AbstractMessageLite.Builder.addAll(CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2494 com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol.getDefaultInstance());CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2506 index, com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile.Symbol.getDefaultInstance());CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2552 DEFAULT_INSTANCE = new com.didiglobal.booster.aapt2.ResourcesInternal.CompiledFile();CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2620 com.didiglobal.booster.aapt2.ConfigurationOuterClass.getDescriptor(),CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2621 com.didiglobal.booster.aapt2.Resources.getDescriptor(),CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2635 com.didiglobal.booster.aapt2.ConfigurationOuterClass.getDescriptor();CODE
CRITICAL…va/com/didiglobal/booster/aapt2/ResourcesInternal.java2636 com.didiglobal.booster.aapt2.Resources.getDescriptor();CODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3049 if (screenLayoutSize_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.ScreenLayoutSize.SCREECODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3052 if (screenLayoutLong_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.ScreenLayoutLong.SCREECODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3055 if (screenRound_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.ScreenRound.SCREEN_ROUND_UNCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3058 if (wideColorGamut_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.WideColorGamut.WIDE_COLOCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3061 if (hdr_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Hdr.HDR_UNSET.getNumber()) {CODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3064 if (orientation_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Orientation.ORIENTATION_UNSCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3067 if (uiModeType_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.UiModeType.UI_MODE_TYPE_UNSECODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3070 if (uiModeNight_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.UiModeNight.UI_MODE_NIGHT_UCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3076 if (touchscreen_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Touchscreen.TOUCHSCREEN_UNSCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3079 if (keysHidden_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.KeysHidden.KEYS_HIDDEN_UNSETCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3082 if (keyboard_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Keyboard.KEYBOARD_UNSET.getNumCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3085 if (navHidden_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.NavHidden.NAV_HIDDEN_UNSET.geCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3088 if (navigation_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Navigation.NAVIGATION_UNSET.CODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3141 if (screenLayoutSize_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.ScreenLayoutSize.SCREECODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3145 if (screenLayoutLong_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.ScreenLayoutLong.SCREECODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3149 if (screenRound_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.ScreenRound.SCREEN_ROUND_UNCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3153 if (wideColorGamut_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.WideColorGamut.WIDE_COLOCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3157 if (hdr_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Hdr.HDR_UNSET.getNumber()) {CODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3161 if (orientation_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Orientation.ORIENTATION_UNSCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3165 if (uiModeType_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.UiModeType.UI_MODE_TYPE_UNSECODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3169 if (uiModeNight_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.UiModeNight.UI_MODE_NIGHT_UCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3177 if (touchscreen_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Touchscreen.TOUCHSCREEN_UNSCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3181 if (keysHidden_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.KeysHidden.KEYS_HIDDEN_UNSETCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3185 if (keyboard_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Keyboard.KEYBOARD_UNSET.getNumCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3189 if (navHidden_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.NavHidden.NAV_HIDDEN_UNSET.geCODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3193 if (navigation_ != com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.Navigation.NAVIGATION_UNSET.CODE
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java3436 // Construct using com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.newBuilder()COMMENT
CRITICAL…/didiglobal/booster/aapt2/ConfigurationOuterClass.java743 return com.didiglobal.booster.aapt2.ConfigurationOuterClass.Configuration.getDescriptor().getEnumTypes().get(0);CODE
74 more matches not shown…
Over-Commented Block1 hit · 1 pts
SeverityFileLineSnippetContext
LOW…diglobal/booster/transform/thread/ThreadTransformer.kt321 // in order to modify the thread name, the penultimate argument `name` have to be moved on the topCOMMENT