AI Slop Code Risk Monitor

eggert/tz

Name: eggert/tz — C Code Quality & Security Review | AI Slop Code Risk Monitor
Creator: AI Slop Code Risk Monitor

Adjusted legacy signal; badge bands: 25 / 50 / 75 (different from dashboard bands).

Time zone database and code

3.3 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for eggert/tz, a C project with 1,926 GitHub stars. SynthScan examined 15,320 lines of code across 14 source files, recording 57 pattern matches distributed across 2 syntactic categories. The legacy adjusted pattern signal is 3.3 (Low pattern signal); it is not an authorship estimate.

Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.

3.3

Adjusted Signal

3.3

Raw Pattern Score

100%

Time Factor

2026-10-28

Last Push

1.9K

Stars

Language

15.3K

Lines of Code

Files

Pattern Hits

2026-10-31

Scan Date

0.00

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 15.2/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 57 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.0/100 · LOW

Are imports declared and package/API names verified? 0 finding(s).

Agent Over-Engineering Ratio 0.0/100 · LOW

Are wrappers, guards, and repeated structures necessary? 0 finding(s).

PR Review Velocity Impact 17.5/100 · LOW

Which changes need focused human review? 57 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 0MEDIUM 1LOW 56

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 57 distinct pattern matches across 2 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 Block56 hits · 48 pts

Severity	File	Line	Snippet	Context
LOW	zdump.c	21	#ifndef HAVE_LOCALTIME_RZ	COMMENT
LOW	localtime.c	21		COMMENT
LOW	localtime.c	41	#endif	COMMENT
LOW	localtime.c	61		COMMENT
LOW	localtime.c	81	# endif	COMMENT
LOW	localtime.c	201	# define IINNTT_MAX LONG_MAX	COMMENT
LOW	localtime.c	221	# define CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC	COMMENT
LOW	localtime.c	261	to support the offtime or mktime variant. */	COMMENT
LOW	localtime.c	281	# ifdef TM_GMTOFF	COMMENT
LOW	localtime.c	301		COMMENT
LOW	localtime.c	321	# define O_PATH 0	COMMENT
LOW	localtime.c	341	# if defined __GLIBC__ && 2 < __GLIBC__ + (19 <= __GLIBC_MINOR__)	COMMENT
LOW	private.h	61	# ifndef _FILE_OFFSET_BITS	COMMENT
LOW	private.h	101	/* This string was in the Factory zone through version 2016f. */	COMMENT
LOW	private.h	121	# define HAVE__GENERIC (201112 <= __STDC_VERSION__)	COMMENT
LOW	private.h	141	#ifndef HAVE_INCOMPATIBLE_CTIME_R	COMMENT
LOW	private.h	161	#ifndef HAVE_STRDUP	COMMENT
LOW	private.h	181	# endif	COMMENT
LOW	private.h	241		COMMENT
LOW	private.h	261	#ifndef ENOTCAPABLE	COMMENT
LOW	private.h	301	# endif	COMMENT
LOW	private.h	321	#endif	COMMENT
LOW	private.h	341	#endif	COMMENT
LOW	private.h	381	# ifndef HAVE_INTTYPES_H	COMMENT
LOW	private.h	401	# ifndef INT_FAST64_MAX	COMMENT
LOW	private.h	421		COMMENT
LOW	private.h	441	# endif	COMMENT
LOW	private.h	461	# define PRIdMAX "ld"	COMMENT
LOW	private.h	481	# endif	COMMENT
LOW	private.h	521	# endif	COMMENT
LOW	private.h	541	# define ckd_sub(r, a, b) __builtin_sub_overflow(a, b, r)	COMMENT
LOW	private.h	561	#if HAVE___HAS_C_ATTRIBUTE	COMMENT
LOW	private.h	581	# define ATTRIBUTE_FALLTHROUGH __attribute__((fallthrough))	COMMENT
LOW	private.h	601	# if __has_c_attribute(noreturn)	COMMENT
LOW	private.h	621	# define ATTRIBUTE_REPRODUCIBLE /* empty */	COMMENT
LOW	private.h	641	# define ATTRIBUTE_PURE ATTRIBUTE_REPRODUCIBLE	COMMENT
LOW	private.h	661	#define ATTRIBUTE_PURE_114833_HACK ATTRIBUTE_PURE_114833	COMMENT
LOW	private.h	701	*/	COMMENT
LOW	private.h	721	# define difftime tz_difftime	COMMENT
LOW	private.h	741	# define posix2time tz_posix2time	COMMENT
LOW	private.h	761	# define tzalloc tz_tzalloc	COMMENT
LOW	private.h	781	# undef daylight	COMMENT
LOW	private.h	821	\|\| defined __GLIBC__ \|\| defined __tm_zone /* musl */ \	COMMENT
LOW	private.h	841	# else	COMMENT
LOW	private.h	881	** declarations if time_tz is defined.	COMMENT
LOW	private.h	921	# define TM_GMTOFF tm_gmtoff	COMMENT
LOW	private.h	941	time_t mktime_z(timezone_t restrict, struct tm *restrict);	COMMENT
LOW	private.h	1061	# ifndef timeoff	COMMENT
LOW	private.h	1081	# ifndef unreachable	COMMENT
LOW	strftime.c	81	&& (/* OpenBSD 5.5 (2014-05-01) and later has 64-bit time_t. */ \	COMMENT
LOW	zic.c	21	#ifndef O_BINARY	COMMENT
LOW	zic.c	41		COMMENT
LOW	zic.c	61	# include <sys/random.h>	COMMENT
LOW	zic.c	101	static mode_t creat_perms = CREAT_PERMS;	COMMENT
LOW	zic.c	161	#if __STDC_VERSION__ < 201112 \|\| defined __SUNPRO_C	COMMENT
LOW	zic.c	761	(TYPE_SIGNED(mode_t) \	COMMENT

Self-Referential Comments1 hit · 3 pts

Severity	File	Line	Snippet	Context
MEDIUM	workman.sh	4	# This file is in the public domain, so clarified as of	COMMENT