AI Slop Code Risk Monitor

zeux/meshoptimizer

Name: zeux/meshoptimizer — 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).

Mesh optimization library that makes meshes smaller and faster to render

0.8 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for zeux/meshoptimizer, a C++ project with 8,755 GitHub stars. SynthScan examined 56,873 lines of code across 102 source files, recording 42 pattern matches distributed across 5 syntactic categories. The legacy adjusted pattern signal is 0.8 (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.

0.8

Adjusted Signal

0.8

Raw Pattern Score

100%

Time Factor

2026-10-14

Last Push

8.8K

Stars

C++

Language

56.9K

Lines of Code

102

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 3.6/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 41 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.1/100 · LOW

Are imports declared and package/API names verified? 1 finding(s).

Agent Over-Engineering Ratio 0.0/100 · LOW

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

PR Review Velocity Impact 3.6/100 · LOW

Which changes need focused human review? 42 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 0LOW 42

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 42 distinct pattern matches across 5 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 Block38 hits · 38 pts

Severity	File	Line	Snippet	Context
LOW	demo/nanite.cpp	1	// For reference, see the original Nanite paper:	COMMENT
LOW	demo/main.cpp	1	#ifndef _CRT_SECURE_NO_WARNINGS	COMMENT
LOW	tools/vcachetuner.cpp	1	#ifndef _CRT_SECURE_NO_WARNINGS	COMMENT
LOW	tools/vcachetester.cpp	1	#ifndef _CRT_SECURE_NO_WARNINGS	COMMENT
LOW	gltf/encodewebp.cpp	1	// This file is part of gltfpack; see gltfpack.h for version/license details	COMMENT
LOW	gltf/encodebasis.cpp	1	// This file is part of gltfpack; see gltfpack.h for version/license details	COMMENT
LOW	gltf/fileio.cpp	1	// This file is part of gltfpack; see gltfpack.h for version/license details	COMMENT
LOW	gltf/parselib.cpp	1	#ifndef _CRT_SECURE_NO_WARNINGS	COMMENT
LOW	gltf/gltfpack.cpp	1	// This file is part of gltfpack; see gltfpack.h for version/license details	COMMENT
LOW	extern/micro_ply.h	81	#include <stdlib.h>	COMMENT
LOW	extern/sdefl.h	121		COMMENT
LOW	extern/sdefl.h	181	#include <limits.h> /* CHAR_BIT */	COMMENT
LOW	extern/cgltf.h	921		COMMENT
LOW	extern/cgltf.h	1001	#endif	COMMENT
LOW	extern/fast_obj.h	181	}	COMMENT
LOW	extern/fast_obj.h	261	}	COMMENT
LOW	src/vertexfilter.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT
LOW	src/vertexfilter.cpp	21	#if defined(__ARM_NEON__) \|\| defined(__ARM_NEON)	COMMENT
LOW	src/vertexfilter.cpp	41	#include <emmintrin.h>	COMMENT
LOW	src/vertexfilter.cpp	1501	#undef SIMD_SSE	COMMENT
LOW	src/meshletutils.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT
LOW	src/vertexcodec.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT
LOW	src/vertexcodec.cpp	21	// MSVC supports compiling SSSE3+POPCNT code regardless of compile options; we use a cpuid-based scalar fallback	COMMENT
LOW	src/vertexcodec.cpp	41	#define SIMD_NEON	COMMENT
LOW	src/vertexcodec.cpp	61	#endif	COMMENT
LOW	src/vertexcodec.cpp	81	#else	COMMENT
LOW	src/vertexcodec.cpp	101		COMMENT
LOW	src/vertexcodec.cpp	1441	return data;	COMMENT
LOW	src/vertexcodec.cpp	1461	#define GRP4(i) t0 = vget_low_u8(r##i), t1 = vreinterpret_u8_u32(vdup_lane_u32(vreinterpret_u32_u8(t0), 1)), t2 = vget_h	COMMENT
LOW	src/remesher.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT
LOW	src/meshoptimizer.h	21		COMMENT
LOW	src/allocator.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT
LOW	src/meshletcodec.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT
LOW	src/meshletcodec.cpp	21	// GCC 4.9+ and clang 3.8+ support targeting SIMD ISA from individual functions; we use a cpuid-based scalar fallback	COMMENT
LOW	src/meshletcodec.cpp	41	#ifndef SIMD_TARGET	COMMENT
LOW	src/meshletcodec.cpp	1041	return decodeMeshletSimd<1>(vertices, triangles, codes, ctrl, data, bound, vertex_count, triangle_count, 4, 4);	COMMENT
LOW	src/clusterizer.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT
LOW	src/simplifier.cpp	1	// This file is part of meshoptimizer library; see meshoptimizer.h for version/license details	COMMENT

Verbosity Indicators1 hit · 2 pts

Severity	File	Line	Snippet	Context
LOW	demo/nanite.cpp	182	// when requesting DAG cut from a viewpoint, we need to check if each cluster is the least detailed cluster that pass	COMMENT

Example Usage Blocks1 hit · 2 pts

Severity	File	Line	Snippet	Context
LOW	extern/sdefl.h	17	## Usage:	COMMENT

Deep Nesting1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	tools/gltfbasis.py	18		CODE

Unused Imports1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	tools/bitmask.py	3		CODE