Repository Analysis

sebastianbergmann/environment

Provides functionality that helps writing PHP code that has runtime-specific execution paths

15.6 Moderate AI signal View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of sebastianbergmann/environment, a PHP project with 6,775 GitHub stars. SynthScan v2.0 examined 2,704 lines of code across 22 source files, recording 36 pattern matches distributed across 1 syntactic category. The overall adjusted score of 15.6 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).

15.6

Adjusted Score

15.6

Raw Score

100%

Time Factor

2026-07-30

Last Push

6.8K

Stars

PHP

Language

2.7K

Lines of Code

Files

Pattern Hits

2026-08-02

Scan Date

0.00

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 0HIGH 0MEDIUM 0LOW 36

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 36 distinct pattern matches across 1 syntactic category. 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.

Hyper-Verbose Identifiers36 hits · 42 pts

Severity	File	Line	Snippet	Context
LOW	tests/ConsoleTest.php	29	public function testIsInteractiveReturnsFalseForPipeResource(): void	CODE
LOW	tests/ConsoleTest.php	51	public function testIsInteractiveReturnsFalseForRegularFileResource(): void	CODE
LOW	tests/ConsoleTest.php	66	public function testGetNumberOfColumnsDoesNotProduceStderrWarningsInNonTtyEnvironment(): void	CODE
LOW⚡	tests/RuntimeTest.php	36	public function testCannotCollectCodeCoverageWhenNeitherXdebugNorPcovAreAvailable(): void	CODE
LOW⚡	tests/RuntimeTest.php	45	public function testCanCollectCodeCoverageWhenXdebugCanCollectCoverage(): void	CODE
LOW⚡	tests/RuntimeTest.php	54	public function testCanCollectCodeCoverageWhenPcovCanCollectCoverage(): void	CODE
LOW⚡	tests/RuntimeTest.php	63	public function testCanCollectCodeCoverageWhenRunningOnPhpdbg(): void	CODE
LOW⚡	tests/RuntimeTest.php	110	public function testNameAndVersionCanBeRetrieved(): void	CODE
LOW⚡	tests/RuntimeTest.php	115	public function testGetNameReturnsPhpdbgWhenRunningOnPhpdbg(): void	CODE
LOW⚡	tests/RuntimeTest.php	122	public function testGetNameReturnsPhpdbgWhenRunningOnPhp(): void	CODE
LOW⚡	tests/RuntimeTest.php	129	public function testNameAndCodeCoverageDriverCanBeRetrieved(): void	CODE
LOW⚡	tests/RuntimeTest.php	134	public function testGetVersionReturnsPhpVersionWhenRunningPhp(): void	CODE
LOW⚡	tests/RuntimeTest.php	139	public function testGetVendorUrlReturnsPhpDotNetWhenRunningPhp(): void	CODE
LOW⚡	tests/RuntimeTest.php	144	public function testSettingsChangedViaCliDFlagAreDetected(): void	CODE
LOW⚡	tests/RuntimeTest.php	159	public function testGetCurrentSettingsReturnsEmptyDiffIfNoValuesArePassed(): void	CODE
LOW⚡	tests/RuntimeTest.php	164	public function testGetCurrentSettingsWillSkipSettingsThatIsNotSet(): void	CODE
LOW⚡	tests/RuntimeTest.php	169	public function testGetCurrentSettingsReturnsValuesVerbatim(): void	CODE
LOW⚡	tests/RuntimeTest.php	295	private function markTestSkippedWhenPcovIsLoaded(): void	CODE
LOW⚡	tests/RuntimeTest.php	302	private function markTestSkippedWhenPcovIsNotLoaded(): void	CODE
LOW⚡	tests/RuntimeTest.php	309	private function markTestSkippedWhenXdebugIsLoaded(): void	CODE
LOW⚡	tests/RuntimeTest.php	316	private function markTestSkippedWhenXdebugCanCollectCoverage(): void	CODE
LOW⚡	tests/RuntimeTest.php	346	private function markTestSkippedWhenXdebugIsNotLoaded(): void	CODE
LOW⚡	tests/RuntimeTest.php	353	private function markTestSkippedWhenRunningOnPhpdbg(): void	CODE
LOW⚡	tests/RuntimeTest.php	362	private function markTestSkippedWhenNotRunningOnPhpdbg(): void	CODE
LOW	tests/RuntimeTest.php	77	public function testRawBinaryCanBeRetrieved(): void	CODE
LOW	tests/RuntimeTest.php	82	public function testIsPhpReturnsTrueWhenRunningOnPhp(): void	CODE
LOW	tests/RuntimeTest.php	186	public function testGetCurrentSettingsSkipsValuesThatEqualTheCompiledInDefaultWhenNoIniFileIsLoaded(): void	CODE
LOW	tests/RuntimeTest.php	200	public function testGetCurrentSettingsReportsEmptyValueThatDiffersFromTheCompiledInDefault(): void	CODE
LOW	tests/RuntimeTest.php	215	public function testGetCurrentSettingsLeavesAloneEmptyValueAbsentFromIniFilesAndCompiledInDefaults(): void	CODE
LOW	tests/RuntimeTest.php	235	public function testCompiledInDefaultsAreCachedAcrossInstances(): void	CODE
LOW	tests/RuntimeTest.php	333	private function markTestSkippedWhenXdebugCannotCollectCoverage(): void	CODE
LOW	src/Runtime.php	107	public function performsJustInTimeCompilation(): bool	CODE
LOW	src/Runtime.php	155	public function getNameWithVersionAndCodeCoverageDriver(): string	CODE
LOW	src/Runtime.php	314	public function getSettingsNotChangeableAtRuntime(): array	CODE
LOW	src/Console.php	155	private function getNumberOfColumnsInteractive(): int	CODE
LOW	src/Console.php	189	private function getNumberOfColumnsWindows(): int	CODE