2.5

Adjusted Signal

2.5

Raw Pattern Score

100%

Time Factor

2026-10-31

Last Push

12.2K

Stars

Language

45.4K

Lines of Code

145

Files

100

Pattern Hits

2026-10-31

Scan Date

0.01

HC Hit Rate

Risk Review · Payload v1

Use each vector to guide manual verification of the underlying findings.

Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.

Cognitive Ownership Risk 6.8/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 64 finding(s).

Hallucinated Dependency & Supply Chain Risk 4.4/100 · LOW

Are imports declared and package/API names verified? 31 finding(s).

Agent Over-Engineering Ratio 1.0/100 · LOW

Are wrappers, guards, and repeated structures necessary? 6 finding(s).

PR Review Velocity Impact 11.5/100 · LOW

Which changes need focused human review? 100 finding(s).

What These Metrics Mean

Adjusted Signal: Legacy pattern score normalized per 1,000 scanned lines and multiplied by the repository-level time factor. It is not an estimate of AI authorship.
Raw Pattern Score: Sum of severity- and context-weighted pattern findings before applying the time factor.
Time Factor: A coarse multiplier based on repository last-push metadata. It does not identify when individual code was written.
Pattern Hits: Count of configured pattern findings. Review each location and surrounding code before acting.
HC Hit Rate: High- and critical-severity findings per scanned file. Severity is a configured detector weight, not proof of a vulnerability or authorship.
Lines / Files: Scan coverage denominators used by the legacy normalized score.

Pattern-Signal History

This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.

Severity Breakdown

Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.

CRITICAL 0HIGH 1MEDIUM 3LOW 96

Directory Score Breakdown

This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.

Pattern Findings

The scanner identified 100 distinct pattern matches across 7 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. 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 configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.

Over-Commented Block61 hits · 61 pts

Severity	File	Line	Snippet	Context
LOW	tests/bench/test-lz4-speed.py	1	#!/usr/bin/env python3	COMMENT
LOW	tests/bench/fullbench.c	41	#include <sys/stat.h> /* stat64 */	COMMENT
LOW	tests/unit/unittest_lz4frame.c	21	You can contact the author at :	COMMENT
LOW	tests/unit/unittest.h	61	# define UT_PRINTF(f, a)	COMMENT
LOW	tests/unit/unittest.h	101	# define UT_CONSTRUCTOR(f) \	COMMENT
LOW	tests/unit/unittest_lz4.c	21	You can contact the author at :	COMMENT
LOW	tests/tools/checkFrame.c	41	#include <string.h> /* strcmp */	COMMENT
LOW	tests/compat/check_stdvars.sh	1	#!/usr/bin/env sh	COMMENT
LOW	tests/compat/abiTest.c	21	#include <stdlib.h> /* malloc, free, exit */	COMMENT
LOW	tests/compat/freestanding.c	1	// Basic test for LZ4_FREESTANDING	COMMENT
LOW	tests/fuzz/fuzzer.c	41	# undef _GNU_SOURCE /* in case it's already defined */	COMMENT
LOW	tests/fuzz/fuzzer.c	61	#define LZ4_STATIC_LINKING_ONLY	COMMENT
LOW	tests/fuzz/frametest.c	41	#include <string.h> /* strcmp */	COMMENT
LOW	programs/lz4io.c	41	# define _DEFAULT_SOURCE /* madvise(), MADV_* : see LZ4IO_releaseInput() */	COMMENT
LOW	programs/lz4io.c	61	#include "lz4io.h"	COMMENT
LOW	programs/lz4io.c	81	# include <unistd.h> /* write, _exit */	COMMENT
LOW	programs/lz4io.c	101		COMMENT
LOW	programs/util.h	21	#define UTIL_H_MODULE	COMMENT
LOW	programs/util.h	41	# include <sys/utime.h> /* utime */	COMMENT
LOW	programs/util.h	101	******************************************/	COMMENT
LOW	programs/util.h	121	# endif	COMMENT
LOW	programs/util.h	141	# define UTIL_STAT_MODE_ISREG(st_mode) ((st_mode) & S_IFREG)	COMMENT
LOW	programs/util.h	161	***************************************/	COMMENT
LOW	programs/lz4cli.c	41		COMMENT
LOW	programs/lz4cli.c	61	* Constants	COMMENT
LOW	programs/bench.c	41	#include <string.h> /* memset */	COMMENT
LOW	programs/bench.c	61	***************************************/	COMMENT
LOW	programs/platform.h	61	/* *********************************************************	COMMENT
LOW	programs/platform.h	81	* PLATFORM_POSIX_VERSION >= 1 is equal to found _POSIX_VERSION	COMMENT
LOW	programs/platform.h	101	# endif	COMMENT
LOW	programs/platform.h	141	# define SET_SPARSE_FILE_MODE(file) { DWORD dw; DeviceIoControl((HANDLE) _get_osfhandle(_fileno(file)), FSCTL_SET_SPA	COMMENT
LOW	examples/blockStreaming_lineByLine.c	1	// LZ4 streaming API example : line-by-line logfile compression	COMMENT
LOW	examples/bench_functions.c	61		COMMENT
LOW	examples/bench_functions.c	161	run_screaming("Couldn't run LZ4_compress_fast_extState()... error code received is in exit code.", rv);	COMMENT
LOW	examples/blockStreaming_doubleBuffer.c	1	// LZ4 streaming API example : double buffer	COMMENT
LOW	examples/dictionaryRandomAccess.c	1	// LZ4 API example : Dictionary Random Access	COMMENT
LOW	lib/xxhash.h	121	* Note that no change is required within the calling program as long as it includes `xxhash.h` :	COMMENT
LOW	lib/lz4frame.c	61	#ifndef LZ4F_HEAPMODE	COMMENT
LOW	lib/lz4frame.c	261	}	COMMENT
LOW	lib/lz4frame.c	1461	}	COMMENT
LOW	lib/lz4frame.c	1481	# include <windows.h>	COMMENT
LOW	lib/lz4frame.c	1501	# define LZ4F_mutex_destroy(m) pthread_mutex_destroy(m)	COMMENT
LOW	lib/lz4.h	81	* Export parameters	COMMENT
LOW	lib/lz4.h	121	# error "LZ4_FREESTANDING requires macro 'LZ4_memcpy'."	COMMENT
LOW	lib/lz4.h	161	#ifndef LZ4_MEMORY_USAGE	COMMENT
LOW	lib/lz4.h	801	* Another method is to define LZ4_DISABLE_DEPRECATE_WARNINGS	COMMENT
LOW	lib/xxhash.c	121	* Compiler Specific Options	COMMENT
LOW	lib/xxhash.c	181	#endif /* XXH_FORCE_DIRECT_MEMORY_ACCESS */	COMMENT
LOW	lib/lz4.c	101		COMMENT
LOW	lib/lz4.c	121	#ifndef LZ4_FORCE_INLINE	COMMENT
LOW	lib/lz4.c	161	*/	COMMENT
LOW	lib/lz4.c	221	# define ALLOC_AND_ZERO(s) LZ4_calloc(1,s)	COMMENT
LOW	lib/lz4.c	241	**************************************/	COMMENT
LOW	lib/lz4.c	261	#define ML_MASK ((1U<<ML_BITS)-1)	COMMENT
LOW	lib/lz4.c	341	* environments, the compiler can't assume the implementation of memcpy() is	COMMENT
LOW	lib/lz4frame.h	81	#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1)	COMMENT
LOW	doc/lz4_manual.html	601	# if defined (__cplusplus) && (__cplusplus >= 201402) </b>/* C++14 or greater */<b>	COMMENT
LOW	ossfuzz/fuzz_helpers.h	21	#include <stdio.h>	COMMENT
LOW	ossfuzz/fuzz_helpers.h	41	*/	COMMENT
LOW	.circleci/config.yml	1	# This configuration was automatically generated from a CircleCI 1.0 config.	COMMENT
1 more matches not shown…

Fake / Example Data26 hits · 32 pts

Severity	File	Line	Snippet	Context
LOW	tests/unit/unittest_lz4hc.c	750	current[i] = ((seed >> 16) % 8 == 0) ? (char)(seed >> 8) : "lorem ipsum dolor sit amet "[i % 27];	CODE
LOW	tests/unit/unittest_lz4hc.c	750	current[i] = ((seed >> 16) % 8 == 0) ? (char)(seed >> 8) : "lorem ipsum dolor sit amet "[i % 27];	CODE
LOW	tests/unit/unittest_lz4.c	869	sample[n] = ((seed >> 16) % 8 == 0) ? (char)(seed >> 8) : "lorem ipsum dolor sit amet "[n % 27];	CODE
LOW	tests/unit/unittest_lz4.c	869	sample[n] = ((seed >> 16) % 8 == 0) ? (char)(seed >> 8) : "lorem ipsum dolor sit amet "[n % 27];	CODE
LOW	tests/tools/loremOut.h	2	loremOut.h - lorem ipsum generator to stdout	CODE
LOW	tests/tools/loremOut.h	28	* Generate @size bytes of compressible data using lorem ipsum generator into stdout.	COMMENT
LOW	tests/tools/loremOut.c	2	lorem.c - lorem ipsum generator to stdout	CODE
LOW	tests/tools/loremOut.c	27	* Generates a stream of Lorem ipsum paragraphs to stdout,	COMMENT
LOW	tests/compat/cmake/decompress-partial.c	6	"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod\n"	CODE
LOW	tests/compat/cmake/decompress-partial.c	6	"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod\n"	CODE
LOW	tests/compat/cmake/decompress-partial.c	19	"porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur,\n"	CODE
LOW	tests/compat/cmake/decompress-partial.c	19	"porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur,\n"	CODE
LOW	programs/lorem.h	2	lorem.h - lorem ipsum generator	CODE
LOW	programs/lorem.h	31	* Generate @size bytes of compressible data using lorem ipsum generator	COMMENT
LOW	programs/README.md	60	When no file is provided, uses an internal Lorem Ipsum generator instead.	CODE
LOW	programs/lorem.c	2	lorem.c - lorem ipsum generator	CODE
LOW⚡	programs/lorem.c	28	* This is a very simple lorem ipsum generator	COMMENT
LOW⚡	programs/lorem.c	35	* The resulting compression / ratio curve of the lorem ipsum generator	COMMENT
LOW⚡	programs/lorem.c	40	* The compression ratio achievable on the generated lorem ipsum	COMMENT
LOW	programs/lorem.c	320	/* It's "common" for lorem ipsum generators to start with the same first	COMMENT
LOW	programs/bench.c	666	"Lorem ipsum",	CODE
LOW	examples/bench_functions.c	238	* Test suite A) Uses generic Lorem Ipsum text which should be generally compressible insomuch as basic human text is	COMMENT
LOW	examples/bench_functions.c	253	const char src[] = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed luctus purus et risus vulputate, e	CODE
LOW	examples/bench_functions.c	253	const char src[] = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed luctus purus et risus vulputate, e	CODE
LOW	examples/simple_buffer.c	41	const char* const src = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Lorem ipsum dolor site amat.";	CODE
LOW	examples/simple_buffer.c	41	const char* const src = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Lorem ipsum dolor site amat.";	CODE

Excessive Try-Catch Wrapping5 hits · 8 pts

Severity	File	Line	Snippet	Context
LOW	tests/bench/test-lz4-speed.py	71	except Exception:	CODE
LOW	tests/bench/test-lz4-speed.py	343	except Exception as e:	CODE
MEDIUM	tests/bench/test-lz4-speed.py	68	def does_command_exist(command):	CODE
MEDIUM	tests/compat/test-lz4-abi.py	48	print('Error Code:', s.poll())	CODE
MEDIUM	tests/compat/test-lz4-versions.py	53	print('Error Code:', s.poll())	CODE

Cross-Language Confusion1 hit · 5 pts

Severity	File	Line	Snippet	Context
HIGH	tests/bench/test-lz4-speed.py	209	'make clean && CPPFLAGS="-DLZ4_GIT_COMMIT=%s" make -C programs lz4 lz4c32 ' % version)	CODE

Unused Imports4 hits · 4 pts

Severity	File	Line	Context
LOW	tests/bench/test-lz4-speed.py	18	CODE
LOW	tests/compat/test-lz4-abi.py	11	CODE
LOW	tests/compat/test-lz4-abi.py	13	CODE
LOW	tests/compat/test-lz4-abi.py	15	CODE

Deep Nesting2 hits · 2 pts

Severity	File	Line	Snippet	Context
LOW	tests/cli/test-lz4-list.py	65		CODE
LOW	tests/cli/test-lz4-list.py	117		CODE

Hyper-Verbose Identifiers1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	tests/bench/test-lz4-speed.py	89	def send_email_with_attachments(branch, commit, last_commit, args, text, results_files,	CODE

lz4/lz4

Open-Source Code Quality, Security and Technical Debt Review