Repository Analysis

PrismarineJS/mineflayer

Create Minecraft bots with a powerful, stable, and high level JavaScript API.

3.6 Likely human-written View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of PrismarineJS/mineflayer, a JavaScript project with 7,280 GitHub stars. SynthScan v2.0 examined 36,143 lines of code across 231 source files, recording 41 pattern matches distributed across 13 syntactic categories. The overall adjusted score of 3.6 places this repository in the Likely human-written 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).

3.6
Adjusted Score
3.6
Raw Score
100%
Time Factor
2026-07-31
Last Push
7.3K
Stars
JavaScript
Language
36.1K
Lines of Code
231
Files
41
Pattern Hits
2026-08-02
Scan Date
0.05
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 4HIGH 8MEDIUM 8LOW 21

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 41 distinct pattern matches across 13 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 Indicators4 hits · 40 pts
SeverityFileLineSnippetContext
CRITICALtest/externalTests/book.js20 book.nbt.value.pages.value.value.forEach((page, i) => assert.strictEqual(page, pages[i]))CODE
CRITICALexamples/telegram.js29 if (ctx.update.message.chat.id.toString() === process.argv[3]) {CODE
CRITICALexamples/crossbower.js36 const isEnchanted = bot.heldItem.nbt.value.Enchantments ? bot.heldItem.nbt.value.Enchantments.value.value.find(enchaCODE
CRITICALexamples/book.js59 book.nbt.value.pages.value.value.forEach((page, i) => bot.chat(`Page ${i + 1}: ${page.replace(/§[a-z0-9]/g, '')}`))CODE
Cross-Language Confusion6 hits · 30 pts
SeverityFileLineSnippetContext
HIGHexamples/python/chatterbox.py77 bot.chat(f"I am at {p.toString()}")CODE
HIGHexamples/python/chatterbox.py80 bot.chat(f"You are at {p.toString()}")CODE
HIGHexamples/python/chatterbox.py103 bot.chat(f"Spawn is at {bot.spawnPoint.toString()}")CODE
HIGHexamples/python/chatterbox.py149 bot.chat(f"I have been forced to move to {p.toString()}")CODE
HIGHexamples/python/chatterbox.py226 console.log(f"Look out! A {entity.displayName} spawned at {p.toString()}")CODE
HIGHexamples/python/chatterbox.py231 console.log(f"There's a {entity.displayName} at {p.toString()}")CODE
Modern AI Meta-Vocabulary5 hits · 15 pts
SeverityFileLineSnippetContext
MEDIUMdocs/zh/README_ZH_CN.md227* [scaffold](https://github.com/andrewrk/mineflayer-scaffold) - 到达目标目的地,即使您必须建造或破坏块才能这样做 [YouTube 演示](http://youtu.be/jkCOMMENT
MEDIUMdocs/br/README_BR.md192* [scaffold](https://github.com/andrewrk/mineflayer-scaffold) - ir para um destino específico mesmo que seja necessário COMMENT
MEDIUMdocs/fr/README_FR.md197 * [scaffold](https://github.com/PrismarineJS/mineflayer-scaffold) - trouver le meilleur chemin vers une destination préCOMMENT
MEDIUMdocs/es/README_ES.md191 * [scaffold](https://github.com/andrewrk/mineflayer-scaffold) - ir a un destino específico incluso si es necesario consCOMMENT
MEDIUMdocs/tr/README_TR.md193 * [scaffold](https://github.com/andrewrk/mineflayer-scaffold) - bir hedefe blok koyarakCOMMENT
Cross-Language Confusion (JS/TS)2 hits · 10 pts
SeverityFileLineSnippetContext
HIGHexamples/book.js31 print()CODE
HIGHexamples/book.js54 print()CODE
Structural Annotation Overuse4 hits · 9 pts
SeverityFileLineSnippetContext
LOWdocs/update_to_1_21_5.md261### Step 2: Run Current TestsCOMMENT
LOWdocs/update_to_1_21_5.md267### Step 3: Investigate Specific IssuesCOMMENT
LOWdocs/update_to_1_21_5.md276### Step 4: Implement FixesCOMMENT
LOWdocs/update_to_1_21_5.md282### Step 5: Validate FixesCOMMENT
Decorative Section Separators2 hits · 6 pts
SeverityFileLineSnippetContext
MEDIUMexamples/python/chatterbox.py1# ==========================================================================COMMENT
MEDIUMexamples/python/chatterbox.py14# ===========================================================================COMMENT
Over-Commented Block5 hits · 5 pts
SeverityFileLineSnippetContext
LOWdocs/api.md1321#### "entityDead" (entity)COMMENT
LOWdocs/update_to_1_21_5.md81```javascriptCOMMENT
LOWdocs/ru/api_ru.md1341COMMENT
LOWdocs/ru/api_ru.md1361#### "entityCrouch" (entity)COMMENT
LOWexamples/python/chatterbox.py1# ==========================================================================COMMENT
Fake / Example Data4 hits · 4 pts
SeverityFileLineSnippetContext
LOWtest/externalTests/book.js7 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magnaCODE
LOWtest/externalTests/book.js7 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magnaCODE
LOWexamples/book.js16 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aCODE
LOWexamples/book.js16 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aCODE
Slop Phrases1 hit · 3 pts
SeverityFileLineSnippetContext
MEDIUM.github/workflows/commands.yml18 # NOTE: You must specify a Personal Access Token (PAT) with repo access here. While you can use the default GITHCOMMENT
Hyper-Verbose Identifiers3 hits · 3 pts
SeverityFileLineSnippetContext
LOWlib/plugins/game.js21 function getBrandCustomChannelName () {CODE
LOWlib/plugins/entities.js416 function handleBotUsedFireworkRocket (fireworkEntityId, fireworkInfo) {CODE
LOWlib/plugins/physics.js125 function sendPacketPositionAndLook (position, yaw, pitch, onGround) {CODE
Unused Imports2 hits · 2 pts
SeverityFileLineSnippetContext
LOWexamples/python/chatterbox.py15CODE
LOWexamples/python/chatterbox.py16CODE
Deep Nesting2 hits · 2 pts
SeverityFileLineSnippetContext
LOWexamples/python/chatterbox.py40CODE
LOWexamples/python/chatterbox.py223CODE
Excessive Try-Catch Wrapping1 hit · 1 pts
SeverityFileLineSnippetContext
LOWexamples/python/chatterbox.py49 except Exception:CODE