AI Slop Code Risk Monitor

handlebars-lang/handlebars.js

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

Minimal templating on steroids.

3.3 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for handlebars-lang/handlebars.js, a JavaScript project with 18,691 GitHub stars. SynthScan examined 22,255 lines of code across 118 source files, recording 32 pattern matches distributed across 4 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
2026-10-06
Last Push
18.7K
Stars
JavaScript
Language
22.3K
Lines of Code
118
Files
32
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 1.9/100 · LOW

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

Hallucinated Dependency & Supply Chain Risk 1.1/100 · LOW

Are imports declared and package/API names verified? 4 finding(s).

Agent Over-Engineering Ratio 13.7/100 · LOW

Are wrappers, guards, and repeated structures necessary? 25 finding(s).

PR Review Velocity Impact 14.9/100 · LOW

Which changes need focused human review? 32 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 20LOW 12

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 32 distinct pattern matches across 4 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.

Decorative Section Separators20 hits · 60 pts
SeverityFileLineSnippetContext
MEDIUMtests/bench/size.js13// ─── Dist sizes ──────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/size.js44// ─── Precompile sizes ────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/size.js72// ─── Main ────────────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js11// ─── Configuration ───────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js27// ─── CLI Args ────────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js65// ─── Filter templates ───────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js87// ─── Bench helpers ───────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js125// ─── Main ────────────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js146 // ─── COMPILATION ────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js165 // ─── EXECUTION + output verification ────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js205 // ─── PRECOMPILATION ─────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js221 // ─── END-TO-END ─────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/perf.js239 // ─── COMPILE OPTIONS ───────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/compare.js14// ─── Resolve files ───────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/compare.js75// ─── Parse ───────────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/compare.js140// ─── Compare ─────────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/compare.js161// ─── Output ──────────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/report.js7// ─── Formatting ──────────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/report.js40// ─── Console output ──────────────────────────────────────────────────────────COMMENT
MEDIUMtests/bench/report.js79// ─── Markdown report ─────────────────────────────────────────────────────────COMMENT
Hyper-Verbose Identifiers5 hits · 6 pts
SeverityFileLineSnippetContext
LOW⚡tasks/tests/git.test.js25 async function createRepositoryThatActsAsRemote() {CODE
LOWtests/browser/tests/lib.spec.js3async function waitForMochaAndAssertResult(page) {CODE
LOWspec/security.js411 beforeEach(function simulateRuntimeWithoutLookupProperty() {CODE
LOWlib/handlebars/decorators.js3export function registerDefaultDecorators(instance) {CODE
LOWlib/handlebars/internal/proto-access.js52function logUnexpectedPropertyAccessOnce(propertyName) {CODE
Fake / Example Data4 hits · 5 pts
SeverityFileLineSnippetContext
LOW⚡tasks/tests/git.test.js21 await git.git('config', 'user.email', 'test@test.com');CODE
LOW⚡tasks/tests/git.test.js30 await git.git('config', 'user.email', 'test@test.com');CODE
LOWspec/regressions.js100 { name: 'John Doe', location: { city: 'Chicago' } },CODE
LOWspec/regressions.js101 { name: 'Jane Doe', location: { city: 'New York' } },CODE
Over-Commented Block3 hits · 3 pts
SeverityFileLineSnippetContext
LOWlib/handlebars/compiler/javascript-compiler.js481COMMENT
LOWlib/handlebars/compiler/javascript-compiler.js621 // On stack, before: ...COMMENT
LOWlib/handlebars/compiler/javascript-compiler.js721 // On stack, after: result of helper invocationCOMMENT