0.4

Adjusted Signal

0.4

Raw Pattern Score

100%

Time Factor

2026-10-28

Last Push

5.5K

Stars

TypeScript

Language

294.9K

Lines of Code

1.9K

Files

101

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? 97 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.4/100 · LOW

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

Agent Over-Engineering Ratio 1.6/100 · LOW

Are wrappers, guards, and repeated structures necessary? 90 finding(s).

PR Review Velocity Impact 2.1/100 · LOW

Which changes need focused human review? 101 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 2HIGH 1MEDIUM 2LOW 96

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 101 distinct pattern matches across 9 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.

Hyper-Verbose Identifiers90 hits · 95 pts

Severity	File	Line	Snippet	Context
LOW⚡	test/util.ts	51	export function parseUnitModelWithScaleAndSelection(spec: TopLevelNormalizedUnitSpecForTest) {	CODE
LOW⚡	test/util.ts	58	export function parseUnitModelWithScaleExceptRange(spec: TopLevelNormalizedUnitSpecForTest) {	CODE
LOW⚡	test/util.ts	64	export function parseUnitModelWithScaleAndLayoutSize(spec: TopLevelNormalizedUnitSpecForTest) {	CODE
LOW⚡	test/util.ts	70	export function parseModelWithScaleAndLayoutSize(spec: TopLevelSpec) {	CODE
LOW	test/compile/scale/domain.test.ts	15	function testParseDomainForChannel(model: UnitModel, channel: ScaleChannel) {	CODE
LOW	test/compile/data/bin.test.ts	35	function makeMovieExampleWithSelection(t: BinTransform) {	CODE
LOW	src/scale.ts	857	export function channelScalePropertyIncompatability(channel: Channel, propName: keyof Scale): string {	CODE
LOW	src/timeunit.ts	208	export function getLocalTimeUnitFromUTCTimeUnit(t: UtcTimeUnit): LocalTimeUnit {	CODE
LOW	src/timeunit.ts	345	export function timeUnitSpecifierExpression(timeUnit: TimeUnit) {	CODE
LOW	src/channeldef.ts	1377	export function isFieldOrDatumDefForTimeFormat(fieldOrDatumDef: FieldDef<string> \| DatumDef): boolean {	CODE
LOW	src/channel.ts	110	export function getPositionChannelFromLatLong(channel: GeoPositionChannel): PositionChannel {	CODE
LOW	src/channel.ts	364	export function getMainChannelFromOffsetChannel(channel: OffsetScaleChannel): PositionScaleChannel {	CODE
LOW	src/channel.ts	463	export function isNonPositionScaleChannel(channel: Channel): channel is NonPositionScaleChannel {	CODE
LOW	src/util.ts	322	export function accessWithDatumToUnescapedPath(unescapedPath: string) {	CODE
LOW	src/util.ts	327	export function unescapeSingleQuoteAndPathDot(escapedPath: string) {	CODE
LOW	src/encoding.ts	411	export function extractTransformsFromEncoding(oldEncoding: Encoding<any>, config: Config) {	CODE
LOW	src/config.ts	781	function redirectConfigToStyleConfig(	CODE
LOW	src/aggregate.ts	81	export function isParameterizedAggregateDef(a: Aggregate \| string): a is ParameterizedAggregateDef {	CODE
LOW	src/spec/toplevel.ts	121	export function extractTopLevelProperties(t: TopLevelProperties, includeParams: boolean) {	CODE
LOW	src/compositemark/errorbar.ts	199	function errorBarOrientAndInputType(	CODE
LOW	src/compositemark/errorbar.ts	306	function errorBarIsInputTypeAggregatedUpperLower(encoding: ErrorEncoding<string>): boolean {	CODE
LOW	src/compositemark/errorbar.ts	310	function errorBarIsInputTypeAggregatedError(encoding: ErrorEncoding<string>): boolean {	CODE
LOW	src/normalize/pathoverlay.ts	23	function dropLineAndPointFromConfig(config: Config<SignalRef>) {	CODE
LOW	src/normalize/repeater.ts	77	function replaceRepeaterInFieldDef(fieldDef: FieldDef<Field>, repeater: RepeaterValue) {	CODE
LOW	src/normalize/repeater.ts	98	function replaceRepeaterInFieldOrDatumDef(def: FieldDef<Field> \| DatumDef<Field>, repeater: RepeaterValue) {	CODE
LOW	src/normalize/repeater.ts	110	function replaceRepeaterInChannelDef(channelDef: ChannelDef<Field>, repeater: RepeaterValue) {	CODE
LOW	src/compile/common.ts	76	export function exprFromValueRefOrSignalRef(ref: VgValueRef \| SignalRef): string {	CODE
LOW	src/compile/legend/assemble.ts	60	function legendsAreMergeCompatible(model: Model, channelA: ScaleChannel, channelB: ScaleChannel): boolean {	CODE
LOW	src/compile/legend/assemble.ts	75	function extractDiscreteValuesFromDomain(domain: VgDomain): (string \| number \| boolean)[] \| null {	CODE
LOW	src/compile/legend/assemble.ts	98	function getDiscreteValuesForChannel(model: Model, channel: ScaleChannel): (string \| number \| boolean)[] \| null {	CODE
LOW	src/compile/legend/assemble.ts	107	function unionDiscreteValuesForChannels(	CODE
LOW	src/compile/layoutsize/component.ts	19	export function getSizeTypeFromLayoutSizeType(layoutSizeType: LayoutSizeType): 'width' \| 'height' {	CODE
LOW	src/compile/layoutsize/parse.ts	42	function parseNonUnitLayoutSizeForChannel(model: Model, layoutSizeType: LayoutSizeType) {	CODE
LOW	src/compile/scale/range.ts	469	export function defaultContinuousToDiscreteCount(	CODE
LOW	src/compile/scale/properties.ts	197	export function parseNonUnitScaleProperty(model: Model, property: keyof (Scale \| ScaleComponentProps)) {	CODE
LOW	src/compile/scale/domain.ts	150	function normalizeUnaggregatedDomain(	CODE
LOW	src/compile/scale/domain.ts	227	function convertDomainIfItIsDateTime(	CODE
LOW	src/compile/mark/mark.ts	96	function getGroupsForStackedBarWithCornerRadius(model: UnitModel, cornerRadiusEnd: CornerRadiusEnd \| undefined) {	CODE
LOW	src/compile/mark/encode/corner-radius.ts	51	export function cornerRadiusEndForStackedBar(	CODE
LOW	src/compile/mark/encode/valueref.ts	40	export function midPointRefWithPositionInvalidTest(	CODE
LOW	src/compile/mark/encode/valueref.ts	69	export function valueRefForFieldOrDatumDef(	CODE
LOW	src/compile/mark/encode/valueref.ts	284	export function widthHeightValueOrSignalRef(channel: Channel, value: Value \| SignalRef) {	CODE
LOW	src/compile/invalid/datasources.ts	17	export function getDataSourcesForHandlingInvalidValues({	CODE
LOW	src/compile/invalid/datasources.ts	53	export function getScaleDataSourceForHandlingInvalidValues(	CODE
LOW	src/compile/axis/config.ts	11	function getAxisConfigFromConfigTypes(	CODE
LOW	src/compile/selection/assemble.ts	44	export function assembleUnitSelectionSignals(model: UnitModel, signals: Signal[]) {	CODE
LOW	src/compile/selection/assemble.ts	125	export function assembleUnitSelectionData(model: UnitModel, data: readonly VgData[]): VgData[] {	CODE
LOW	src/compile/selection/assemble.ts	183	export function assembleUnitSelectionMarks(model: UnitModel, marks: any[]): any[] {	CODE
LOW	src/compile/selection/assemble.ts	195	export function assembleLayerSelectionMarks(model: LayerModel, marks: any[]): any[] {	CODE
LOW	src/compile/selection/assemble.ts	205	export function assembleSelectionScaleDomain(	CODE
LOW	src/compile/selection/index.ts	116	export function disableDirectManipulation(selCmpt: SelectionComponent, selDef: SelectionParameter<'point'>) {	CODE
LOW	src/compile/data/timeunit.ts	38	function isTimeUnitTransformComponent(timeUnitComponent: TimeUnitComponent): timeUnitComponent is TimeUnitTransform {	CODE
LOW	src/compile/data/facet.ts	24	export function isCrossedFacetWithCustomSort(facet: Pick<EncodingFacetMapping<string, SignalRef>, 'row' \| 'column'>) {	CODE
LOW	src/compile/data/formatparse.ts	74	export function getImplicitFromFilterTransform(transform: FilterTransform) {	CODE
LOW	src/compile/data/optimize.ts	48	function optimizationDataflowHelper(dataComponent: DataComponent, model: Model, firstPass: boolean) {	CODE
LOW	src/compile/header/assemble.ts	79	export function defaultHeaderGuideBaseline(angle: number, channel: FacetChannel) {	CODE
LOW	src/compile/projection/assemble.ts	14	export function assembleProjectionsForModelAndChildren(model: Model): VgProjection[] {	CODE
LOW	src/compile/projection/assemble.ts	20	export function assembleProjectionForModel(model: Model): VgProjection[] {	CODE
LOW⚡	src/log/message.ts	114	export function columnsNotSupportByRowCol(type: 'facet' \| 'repeat') {	CODE
LOW⚡	src/log/message.ts	123	export function selectionAsScaleDomainWithoutField(field: string) {	CODE
30 more matches not shown…

Hallucination Indicators2 hits · 20 pts

Severity	File	Line	Snippet	Context
CRITICAL	test/compile/data/formatparse.test.ts	119	expect(model.child.component.data.ancestorParse.combine()).toEqual({	CODE
CRITICAL	src/compile/data/parse.ts	326	!newData && model.parent ? model.parent.component.data.ancestorParse.clone() : new AncestorParse();	CODE

AI Response Leakage1 hit · 5 pts

Severity	File	Line	Snippet	Context
HIGH	site/docs/mark/area.md	66	Instead of using a single color as the fill color of the area, we can set it to a [gradient]({{site.baseurl}}/docs/types	CODE

Modern AI Meta-Vocabulary1 hit · 3 pts

Severity	File	Line	Snippet	Context
MEDIUM	test/compile/mark/tick.test.ts	6	// (except the scaffold labels() method)	COMMENT

Redundant / Tautological Comments2 hits · 3 pts

Severity	File	Line	Snippet	Context
LOW	scripts/check-npm.sh	5	# Check if all required files are here	COMMENT
LOW	scripts/build-examples.sh	9	# Check if param is provided	COMMENT

AI Slop Vocabulary1 hit · 2 pts

Severity	File	Line	Snippet	Context
MEDIUM	package-lock.json	8661	"resolved": "https://registry.npmjs.org/robust-predicates/-/robust-predicates-3.0.3.tgz",	CODE

Fake / Example Data2 hits · 2 pts

Severity	File	Line	Snippet	Context
LOW	examples/specs/param_search_input.vl.json	22	"placeholder": "Car model",	CODE
LOW	examples/compiled/param_search_input.vg.json	25	"bind": {"input": "search", "placeholder": "Car model", "name": "Search"}	CODE

Overly Generic Function Names1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	test/compile/selection/timeunit.test.ts	11	function getData(model: Model) {	CODE

Over-Commented Block1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	src/compile/compile.ts	101		COMMENT

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Open-Source Code Quality, Security and Technical Debt Review