AI Slop Code Risk Monitor

bellard/quickjs

Name: bellard/quickjs — open-source 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).

0.7 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for bellard/quickjs. SynthScan examined 84,609 lines of code across 95 source files, recording 31 pattern matches distributed across 3 syntactic categories. The legacy adjusted pattern signal is 0.7 (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.

0.7

Adjusted Signal

0.7

Raw Pattern Score

100%

Time Factor

—

Last Push

—

Stars

—

Language

84.6K

Lines of Code

Files

Pattern Hits

2026-10-31

Scan Date

0.05

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 1.5/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 26 finding(s).

Hallucinated Dependency & Supply Chain Risk 1.9/100 · LOW

Are imports declared and package/API names verified? 5 finding(s).

Agent Over-Engineering Ratio 0.0/100 · LOW

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

PR Review Velocity Impact 3.3/100 · LOW

Which changes need focused human review? 31 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 5MEDIUM 0LOW 26

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 31 distinct pattern matches across 3 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.

Cross-Language Confusion (JS/TS)5 hits · 32 pts

Severity	File	Line	Snippet	Context
HIGH⚡	tests/test_bjson.js	107	print(a_str, "->", toHex(buf));	CODE
HIGH⚡	tests/test_bjson.js	112	print(a_str);	CODE
HIGH⚡	tests/test_bjson.js	113	print(r_str);	CODE
HIGH	examples/pi_bigint.js	93	print("usage: pi n_digits");	CODE
HIGH	examples/pi_bigint.js	104	print(out[0] + "." + out.slice(1));	CODE

Over-Commented Block25 hits · 25 pts

Severity	File	Line	Snippet	Context
LOW	libregexp.c	101	static const REOpCode reopcode_info[REOP_COUNT] = {	COMMENT
LOW	dtoa.c	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN	COMMENT
LOW	run-test262.c	21	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,	COMMENT
LOW	qjs.c	21	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,	COMMENT
LOW	quickjs-libc.c	21	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,	COMMENT
LOW	quickjs-libc.c	41	#include <windows.h>	COMMENT
LOW	quickjs-libc.c	61	#include <crt_externs.h>	COMMENT
LOW	quickjs-libc.c	3961	#endif	COMMENT
LOW	qjsc.c	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN	COMMENT
LOW	libregexp.h	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN	COMMENT
LOW	quickjs.h	21	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,	COMMENT
LOW	quickjs.h	41	#else	COMMENT
LOW	quickjs.h	61	#endif	COMMENT
LOW	quickjs.h	121	typedef struct __JSValue *JSValue;	COMMENT
LOW	quickjs.h	241	int64_t tag;	COMMENT
LOW	quickjs.h	301	#define JS_UNDEFINED JS_MKVAL(JS_TAG_UNDEFINED, 0)	COMMENT
LOW	quickjs.h	321	#define JS_PROP_HAS_CONFIGURABLE (1 << 8)	COMMENT
LOW	quickjs.h	1141	int len;	COMMENT
LOW	quickjs.h	1161	#define JS_DEF_PROP_BOOL 11	COMMENT
LOW	cutils.h	21	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,	COMMENT
LOW	cutils.h	41	#define tostring(s) #s	COMMENT
LOW	unicode_gen.c	361	static const char *unicode_prop_name[] = {	COMMENT
LOW	temporal/temporal.c	1	/*	COMMENT
LOW	intl/intl_private.h	301	#define NS_DECIMAL(ns) decimal_tab[(ns).decimal_idx]	COMMENT
LOW	tests/test_builtin.js	621	assert_json_error('\n{ "a": @x }"');	COMMENT

Deep Nesting1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	gen_tzdata.py	261		CODE