AI Slop Code Risk Monitor

nodeca/js-yaml

SlopCodeMonitor badge for nodeca/js-yaml Adjusted legacy signal; badge bands: 25 / 50 / 75 (different from dashboard bands).

JavaScript YAML parser and dumper. Very fast.

2.3 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for nodeca/js-yaml, a TypeScript project with 6,641 GitHub stars. SynthScan examined 15,880 lines of code across 79 source files, recording 30 pattern matches distributed across 3 syntactic categories. The legacy adjusted pattern signal is 2.3 (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.

2.3
Adjusted Signal
2.3
Raw Pattern Score
100%
Time Factor
2026-10-27
Last Push
6.6K
Stars
TypeScript
Language
15.9K
Lines of Code
79
Files
30
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 2.5/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 8 finding(s).

Hallucinated Dependency & Supply Chain Risk 8.4/100 · LOW

Are imports declared and package/API names verified? 22 finding(s).

Agent Over-Engineering Ratio 1.2/100 · LOW

Are wrappers, guards, and repeated structures necessary? 4 finding(s).

PR Review Velocity Impact 9.0/100 · LOW

Which changes need focused human review? 30 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 30

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 30 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.

Fake / Example Data22 hits · 28 pts
SeverityFileLineSnippetContext
LOWbenchmark/samples/scalar_double_quoted_escaped_01.yaml1"Lorem nipsum\tdolor sit amet,\nconsectetur adipiscing elit.\u2028Donec a diam lectus. \"Sed sit amet ipsum\" mauris."CODE
LOW⚡benchmark/samples/scalar_block_literal.yaml2 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diamCODE
LOW⚡benchmark/samples/scalar_block_literal.yaml2 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diamCODE
LOW⚡benchmark/samples/scalar_block_literal.yaml7 arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet,CODE
LOW⚡benchmark/samples/scalar_block_literal.yaml7 arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet,CODE
LOWbenchmark/samples/scalar_block_literal.yaml36 eget dolor sit amet ipsum dapibus condimentum vitae quis lectus. AliquamCODE
LOWbenchmark/samples/scalar_double_quoted_simple_01.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diam lectus. Sed sit amet ipsum mauris."CODE
LOWbenchmark/samples/scalar_double_quoted_simple_01.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diam lectus. Sed sit amet ipsum mauris."CODE
LOW⚡…ark/samples/scalar_double_quoted_simple_multiline.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diamCODE
LOW⚡…ark/samples/scalar_double_quoted_simple_multiline.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diamCODE
LOW⚡…ark/samples/scalar_double_quoted_simple_multiline.yaml6arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet,CODE
LOW⚡…ark/samples/scalar_double_quoted_simple_multiline.yaml6arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet,CODE
LOW…ark/samples/scalar_double_quoted_simple_multiline.yaml35eget dolor sit amet ipsum dapibus condimentum vitae quis lectus. AliquamCODE
LOW⚡benchmark/samples/scalar_block_folded.yaml2 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diamCODE
LOW⚡benchmark/samples/scalar_block_folded.yaml2 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diamCODE
LOW⚡benchmark/samples/scalar_block_folded.yaml7 arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet,CODE
LOW⚡benchmark/samples/scalar_block_folded.yaml7 arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet,CODE
LOWbenchmark/samples/scalar_block_folded.yaml36 eget dolor sit amet ipsum dapibus condimentum vitae quis lectus. AliquamCODE
LOWbenchmark/samples/scalar_double_quoted_simple_02.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diam lectus. Sed sit amet ipsum mauris. Maecenas conguCODE
LOWbenchmark/samples/scalar_double_quoted_simple_02.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diam lectus. Sed sit amet ipsum mauris. Maecenas conguCODE
LOWbenchmark/samples/scalar_double_quoted_escaped_02.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit.\nDonec a diam lectus. Sed sit amet ipsum mauris.\nMaecenas conCODE
LOWbenchmark/samples/scalar_double_quoted_escaped_02.yaml1"Lorem ipsum dolor sit amet, consectetur adipiscing elit.\nDonec a diam lectus. Sed sit amet ipsum mauris.\nMaecenas conCODE
Over-Commented Block4 hits · 4 pts
SeverityFileLineSnippetContext
LOWbenchmark/samples/document_nodeca_application.yaml21 default: en-USCOMMENT
LOWbenchmark/samples/document_nodeca_application.yaml41# or blacklist of enabled themes:COMMENT
LOWbenchmark/samples/document_nodeca_application.yaml61COMMENT
LOWsrc/ast/scalar_styler.ts401 return resultCOMMENT
Hyper-Verbose Identifiers4 hits · 4 pts
SeverityFileLineSnippetContext
LOWsrc/schema.ts50function createTagDefinitionListMap (): TagDefinitionListMap {CODE
LOWsrc/parser/parser.ts151function insertFlowPairMappingEvent (state: ParserState, snapshot: ParserSnapshot) {CODE
LOWsrc/ast/styler_defaults.ts52function doubleQuoteWhitespaceOnly (layout: ScalarLayout): void {CODE
LOWsrc/ast/styler_defaults.ts74function tryLongOrMultilineAsBlock (layout: ScalarLayout): void {CODE