Repository Analysis

ungoogled-software/ungoogled-chromium

Google Chromium, sans integration with Google

8.0 Low AI signal View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of ungoogled-software/ungoogled-chromium, a Python project with 27,132 GitHub stars. SynthScan v2.0 examined 7,050 lines of code across 73 source files, recording 54 pattern matches distributed across 6 syntactic categories. The overall adjusted score of 8.0 places this repository in the Low 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).

8.0
Adjusted Score
8.0
Raw Score
100%
Time Factor
2026-07-11
Last Push
27.1K
Stars
Python
Language
7.0K
Lines of Code
73
Files
54
Pattern Hits
2026-07-14
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

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 0HIGH 0MEDIUM 0LOW 54

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 54 distinct pattern matches across 6 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.

Deep Nesting20 hits · 20 pts
SeverityFileLineSnippetContext
LOWutils/filescfg.py52CODE
LOWutils/prune_binaries.py180CODE
LOWutils/downloads.py308CODE
LOWutils/downloads.py339CODE
LOWutils/downloads.py90CODE
LOWutils/domain_substitution.py182CODE
LOWutils/clone.py48CODE
LOWutils/_extraction.py141CODE
LOWutils/third_party/schema.py234CODE
LOWdevutils/validate_patches.py183CODE
LOWdevutils/validate_patches.py406CODE
LOWdevutils/validate_patches.py486CODE
LOWdevutils/validate_patches.py553CODE
LOWdevutils/validate_patches.py610CODE
LOWdevutils/validate_patches.py623CODE
LOWdevutils/run_other_pylint.py33CODE
LOWdevutils/update_lists.py236CODE
LOWdevutils/update_lists.py261CODE
LOWdevutils/check_patch_files.py50CODE
LOWdevutils/third_party/unidiff/patch.py217CODE
Hyper-Verbose Identifiers12 hits · 14 pts
SeverityFileLineSnippetContext
LOWutils/downloads.py248def _chromium_hashes_generator(hashes_path):CODE
LOWutils/patches.py141def generate_patches_from_series(patches_dir, resolve=False):CODE
LOWutils/make_domsub_script.py17def make_domain_substitution_script(regex_path, files_path, backup_type, output_path):CODE
LOWutils/tests/test_patches.py16def test_find_and_check_patch():CODE
LOWdevutils/validate_patches.py146def _download_googlesource_file(download_session, repo_url, version, relative_path):CODE
LOWdevutils/validate_patches.py225def _get_last_chromium_modification():CODE
LOWdevutils/validate_patches.py234def _get_gitiles_git_log_date(log_entry):CODE
LOWdevutils/validate_patches.py239def _get_gitiles_commit_before_date(repo_url, target_branch, target_datetime):CODE
LOWdevutils/validate_patches.py318def _get_target_file_deps_node(download_session, root_deps_tree, target_file):CODE
LOWdevutils/tests/test_check_patch_files.py24def test_check_series_duplicates():CODE
LOWdevutils/third_party/unidiff/patch.py281 def _add_no_newline_marker_to_last_hunk(self):CODE
LOWdevutils/third_party/unidiff/patch.py289 def _append_trailing_empty_line(self):CODE
Unused Imports12 hits · 12 pts
SeverityFileLineSnippetContext
LOWdevutils/third_party/unidiff/patch.py27CODE
LOWdevutils/third_party/unidiff/constants.py27CODE
LOWdevutils/third_party/unidiff/__init__.py27CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/__init__.py30CODE
LOWdevutils/third_party/unidiff/errors.py27CODE
Over-Commented Block6 hits · 6 pts
SeverityFileLineSnippetContext
LOWdevutils/pytest.ini1[pytest]COMMENT
LOWdevutils/third_party/unidiff/patch.py1# -*- coding: utf-8 -*-COMMENT
LOWdevutils/third_party/unidiff/constants.py1# -*- coding: utf-8 -*-COMMENT
LOWdevutils/third_party/unidiff/__init__.py1# -*- coding: utf-8 -*-COMMENT
LOWdevutils/third_party/unidiff/__version__.py1# -*- coding: utf-8 -*-COMMENT
LOWdevutils/third_party/unidiff/errors.py1# -*- coding: utf-8 -*-COMMENT
Redundant / Tautological Comments2 hits · 3 pts
SeverityFileLineSnippetContext
LOWutils/downloads.py330 # Read file in chunks. Default is 262144 bytes.COMMENT
LOWdevutils/validate_patches.py541 # Write file to patchCOMMENT
Modern Structural Boilerplate2 hits · 2 pts
SeverityFileLineSnippetContext
LOWutils/domain_substitution.py161def _update_timestamp(path: os.PathLike, set_new: bool) -> None:CODE
LOWutils/third_party/schema.py8__all__ = ['Schema',CODE