PyO3/maturin

3.8

Adjusted Score

3.8

Raw Score

100%

Time Factor

2026-08-24

Last Push

5.8K

Stars

Rust

Language

78.8K

Lines of Code

559

Files

190

Pattern Hits

2026-08-29

Scan Date

0.01

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 4HIGH 1MEDIUM 20LOW 165

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 190 distinct pattern matches across 14 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.

Over-Commented Block118 hits · 118 pts

Severity	File	Line	Snippet	Context
LOW	deny.toml	1	# This template contains all of the possible sections and their default values	COMMENT
LOW	deny.toml	21	# `target_family = "unix"` configuration, that only having windows targets in	COMMENT
LOW	deny.toml	41	# from the view of cargo-deny. This is an extremely heavy hammer, as if a crate	COMMENT
LOW	deny.toml	61	# option can be used to specify the depth at which feature edges will be added.	COMMENT
LOW	deny.toml	81	#"a-crate-that-is-yanked@0.1.1", # you can also ignore yanked crate versions if you wish	COMMENT
LOW	deny.toml	121	# Each entry is the crate and version constraint, and its specific allow	COMMENT
LOW	deny.toml	141	# the license expression. If the contents match, the clarification will be used	COMMENT
LOW	deny.toml	161	# is only published to private registries, and ignore is true, the crate will	COMMENT
LOW	deny.toml	181	# The default lint level for `default` features for crates that are members of	COMMENT
LOW	deny.toml	201	]	COMMENT
LOW	deny.toml	221	#]	COMMENT
LOW	deny.toml	241	# More documentation about the 'sources' section can be found here:	COMMENT
LOW	guide/src/config.md	21	# Features can also be conditional on the target Python version	COMMENT
LOW	guide/src/config.md	61	# Bindings type	COMMENT
LOW	guide/src/config.md	81	sdist-generator = "cargo"	COMMENT
LOW	guide/src/config.md	181		COMMENT
LOW	tests/common/mod.rs	101	pub fn case_target_dir(case_id: &str) -> PathBuf {	COMMENT
LOW	tests/common/integration.rs	21	///	COMMENT
LOW	src/cargo_options.rs	81		COMMENT
LOW	src/cross_compile.rs	101	///	COMMENT
LOW	src/build_options.rs	21	/// Find interpreters from the host machine	COMMENT
LOW	src/build_options.rs	41	/// The `pypi` option applies on all platforms and ensure that only tags that can be uploaded to	COMMENT
LOW	src/build_options.rs	61	#[arg(long, conflicts_with = "skip_auditwheel")]	COMMENT
LOW	src/build_options.rs	81	#[derive(Debug, Default, Serialize, Deserialize, clap::Parser, Clone, Eq, PartialEq)]	COMMENT
LOW	src/build_options.rs	101	/// High level API for building wheels from a crate, also used for the CLI.	COMMENT
LOW	src/metadata.rs	21	/// The metadata required to generate the .dist-info directory	COMMENT
LOW	src/lib.rs	1	//! Builds wheels from a crate that exposes python bindings through pyo3	COMMENT
LOW	src/lib.rs	21	//! - auditwheel: Enables dependency auditing and wheel repair for macOS (install-name/rpath	COMMENT
LOW	src/upload.rs	21	use std::time::Duration;	COMMENT
LOW	src/upload.rs	41	///	COMMENT
LOW	src/upload.rs	81	}	COMMENT
LOW	src/project_layout.rs	21	/// Contains the canonicalized (i.e. absolute) path to the python part of the project	COMMENT
LOW	src/project_layout.rs	301	format!(	COMMENT
LOW	src/pyproject_toml.rs	21	pub maturin: Option<ToolMaturin>,	COMMENT
LOW	src/pyproject_toml.rs	61	#[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]	COMMENT
LOW	src/pyproject_toml.rs	141	}	COMMENT
LOW	src/pyproject_toml.rs	161	pub enum CargoCrateType {	COMMENT
LOW	src/pyproject_toml.rs	201	#[serde(alias = "macosx-deployment-target")]	COMMENT
LOW	src/pyproject_toml.rs	221	pub struct SbomConfig {	COMMENT
LOW	src/pyproject_toml.rs	241	/// [tool.maturin]	COMMENT
LOW	src/pyproject_toml.rs	341	///	COMMENT
LOW	src/pyproject_toml.rs	361	/// Include files matching the given glob pattern(s).	COMMENT
LOW	src/pyproject_toml.rs	381	pub strip: bool,	COMMENT
LOW	src/pyproject_toml.rs	401	/// List of features to activate.	COMMENT
LOW	src/pyproject_toml.rs	421	/// Use base Python executable instead of venv Python executable in PEP 517 build.	COMMENT
LOW	src/pyproject_toml.rs	441	/// The `[tool.maturin.generate-ci]` section	COMMENT
LOW	src/pyproject_toml.rs	481		COMMENT
LOW	src/pyproject_toml.rs	521	#[derive(Serialize, Deserialize, Debug, Clone)]	COMMENT
LOW	src/main.rs	41	struct Opt {	COMMENT
LOW	src/main.rs	61	#[command(name = "build", alias = "b")]	COMMENT
LOW	src/main.rs	81	/// Can also be enabled via the MATURIN_PGO environment variable.	COMMENT
LOW	src/main.rs	101	///	COMMENT
LOW	src/main.rs	121	/// Build only a source distribution (sdist) without compiling.	COMMENT
LOW	src/main.rs	141	path: Option<String>,	COMMENT
LOW	src/main.rs	161	#[cfg(feature = "upload")]	COMMENT
LOW	src/main.rs	181	cargo: CargoOptions,	COMMENT
LOW	src/compile.rs	61	/// Library search paths for this architecture	COMMENT
LOW	src/compile.rs	81	#[derive(Debug, Clone)]	COMMENT
LOW	src/compile.rs	101	/// `copy_back_cargo_outputs` has restored unpatched bytes at the	COMMENT
LOW	src/compile.rs	121	/// per-arch dependency analysis during macOS wheel repair.	COMMENT
58 more matches not shown…

Modern AI Meta-Vocabulary18 hits · 68 pts

Severity	File	Line	Snippet	Context
MEDIUM	Cargo.toml	113	# project scaffolding, maturin new/init/generate-ci	COMMENT
MEDIUM	Cargo.toml	214	# project scaffolding	COMMENT
MEDIUM	tests/cli.rs	18	#[cfg(not(feature = "scaffolding"))]	COMMENT
MEDIUM	tests/cli.rs	25	#[cfg(not(all(feature = "upload", feature = "zig", feature = "scaffolding")))]	COMMENT
MEDIUM	src/lib.rs	64	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM	src/lib.rs	84	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM	src/lib.rs	94	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM	src/main.rs	18	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/main.rs	137	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/main.rs	146	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/main.rs	154	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/main.rs	266	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/main.rs	268	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/main.rs	270	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM	src/commands/mod.rs	9	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/commands/mod.rs	66	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/commands/mod.rs	73	#[cfg(feature = "scaffolding")]	COMMENT
MEDIUM⚡	src/commands/mod.rs	80	#[cfg(feature = "scaffolding")]	COMMENT

Hallucination Indicators4 hits · 55 pts

Severity	File	Line	Snippet	Context
CRITICAL	src/build_orchestrator.rs	468	self.context.project.project_layout.data.as_deref(),	CODE
CRITICAL⚡	src/build_orchestrator.rs	771	if !self.context.project.metadata24.scripts.is_empty() {	CODE
CRITICAL⚡	src/build_orchestrator.rs	777	if !self.context.project.metadata24.entry_points.is_empty() {	CODE
CRITICAL⚡	src/build_orchestrator.rs	781	if self.context.project.project_layout.python_module.is_some() {	CODE

Unused Imports21 hits · 21 pts

Severity	File	Line	Context
LOW	maturin/bootstrap.py	12	CODE
LOW	maturin/bootstrap.py	19	CODE
LOW	maturin/__init__.py	11	CODE
LOW	maturin/__main__.py	1	CODE
LOW	…licit/python/cffi_mixed_implicit/some_rust/__init__.py	1	CODE
LOW	…licit/python/cffi_mixed_implicit/some_rust/__init__.py	1	CODE
LOW	…ixed-py-subdir/python/cffi_mixed_py_subdir/__init__.py	1	CODE
LOW	…ixed-py-subdir/python/cffi_mixed_py_subdir/__init__.py	1	CODE
LOW	test-crates/uniffi-mixed/uniffi_mixed/__init__.py	1	CODE
LOW	test-crates/cffi-mixed/cffi_mixed/__init__.py	1	CODE
LOW	test-crates/cffi-mixed/cffi_mixed/__init__.py	1	CODE
LOW	test-crates/cffi-mixed/cffi_mixed/__init__.py	2	CODE
LOW	…xed-with-path-dep/cffi_mixed_with_path_dep/__init__.py	1	CODE
LOW	…xed-with-path-dep/cffi_mixed_with_path_dep/__init__.py	1	CODE
LOW	…t-crates/cffi-mixed-src/src/cffi_mixed_src/__init__.py	1	CODE
LOW	…t-crates/cffi-mixed-src/src/cffi_mixed_src/__init__.py	1	CODE
LOW	test-crates/pyo3-mixed/pyo3_mixed/__init__.py	1	CODE
LOW	…/cffi-mixed-submodule/cffi_mixed_submodule/__init__.py	1	CODE
LOW	…submodule/cffi_mixed_submodule/rust_module/__init__.py	1	CODE
LOW	…include-exclude/cffi_mixed_include_exclude/__init__.py	1	CODE
LOW	…include-exclude/cffi_mixed_include_exclude/__init__.py	1	CODE

Modern Structural Boilerplate8 hits · 8 pts

Severity	File	Line	Snippet	Context
LOW	…licit/python/cffi_mixed_implicit/some_rust/__init__.py	3	__all__ = ["ffi", "lib"]	CODE
LOW	…ixed-py-subdir/python/cffi_mixed_py_subdir/__init__.py	3	__all__ = ["ffi", "lib"]	CODE
LOW	test-crates/cffi-mixed/cffi_mixed/__init__.py	4	__all__ = ["Line", "ffi", "lib"]	CODE
LOW	…xed-with-path-dep/cffi_mixed_with_path_dep/__init__.py	3	__all__ = ["ffi", "lib"]	CODE
LOW	…t-crates/cffi-mixed-src/src/cffi_mixed_src/__init__.py	3	__all__ = ["ffi", "lib"]	CODE
LOW	…/cffi-mixed-submodule/cffi_mixed_submodule/__init__.py	3	__all__ = ["rust"]	CODE
LOW	…submodule/cffi_mixed_submodule/rust_module/__init__.py	3	__all__ = ["rust"]	CODE
LOW	…include-exclude/cffi_mixed_include_exclude/__init__.py	3	__all__ = ["ffi", "lib"]	CODE

Hyper-Verbose Identifiers6 hits · 6 pts

Severity	File	Line	Snippet	Context
LOW	noxfile.py	93	def _resolve_pyodide_platform_inputs(info: dict) -> dict:	CODE
LOW	maturin/bootstrap.py	22	def get_requires_for_build_wheel(config_settings: dict[str, Any] \| None = None) -> list[str]:	CODE
LOW	maturin/bootstrap.py	28	def get_requires_for_build_sdist(config_settings: dict[str, Any] \| None = None) -> list[str]:	CODE
LOW	maturin/__init__.py	165	def get_requires_for_build_wheel(config_settings: Mapping[str, Any] \| None = None) -> list[str]:	CODE
LOW	maturin/__init__.py	189	def get_requires_for_build_sdist(config_settings: Mapping[str, Any] \| None = None) -> list[str]:	CODE
LOW	maturin/__init__.py	197	def prepare_metadata_for_build_wheel(metadata_directory: str, config_settings: Mapping[str, Any] \| None = None) -> str:	CODE

Verbosity Indicators4 hits · 6 pts

Severity	File	Line	Snippet	Context
LOW	tests/common/other.rs	720	// Step 1: Build the sdist	COMMENT
LOW	tests/common/other.rs	744	// Step 2: Unpack sdist and build wheels from it	COMMENT
LOW	src/python_interpreter/resolver.rs	253	// Step 1: PYO3_CONFIG_FILE is an explicit override that trumps everything	COMMENT
LOW	src/python_interpreter/resolver.rs	268	// Step 2: Discover candidates (unified for native/cross)	COMMENT

Structural Annotation Overuse4 hits · 6 pts

Severity	File	Line	Snippet	Context
LOW	tests/common/other.rs	720	// Step 1: Build the sdist	COMMENT
LOW	tests/common/other.rs	744	// Step 2: Unpack sdist and build wheels from it	COMMENT
LOW	src/python_interpreter/resolver.rs	253	// Step 1: PYO3_CONFIG_FILE is an explicit override that trumps everything	COMMENT
LOW	src/python_interpreter/resolver.rs	268	// Step 2: Discover candidates (unified for native/cross)	COMMENT

Cross-Language Confusion1 hit · 5 pts

Severity	File	Line	Snippet	Context
HIGH	test-crates/cffi-mixed/test_cffi_mixed.py	24	assert line.length() == 5	CODE

AI Slop Vocabulary1 hit · 3 pts

Severity	File	Line	Snippet	Context
MEDIUM	.github/workflows/test.yml	94	# minutes; the test harness falls back to micromamba when conda is absent.	COMMENT

Overly Generic Function Names2 hits · 2 pts

Severity	File	Line	Snippet	Context
LOW	test-crates/pyo3-pure/tests/test_pyo3_pure.py	15	def test_function():	CODE
LOW	test-crates/pyo3-abi3t/tests/test_pyo3_abi3t.py	15	def test_function():	CODE

Self-Referential Comments1 hit · 2 pts

Severity	File	Line	Snippet	Context
MEDIUM	src/ci/github/render.rs	147	"# This file is autogenerated by maturin v{version}	CODE

Redundant / Tautological Comments1 hit · 2 pts

Severity	File	Line	Snippet	Context
LOW	.github/workflows/test.yml	581	# Check if all needs were successful or skipped.	COMMENT

Deep Nesting1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	noxfile.py	39		CODE

Analysis Overview

What These Metrics Mean

Score History

Severity Breakdown

Directory Score Breakdown

Pattern Findings