3.6

Adjusted Signal

3.6

Raw Pattern Score

100%

Time Factor

2026-10-30

Last Push

7.2K

Stars

TypeScript

Language

72.6K

Lines of Code

729

Files

122

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 7.7/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 76 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.0/100 · LOW

Are imports declared and package/API names verified? 0 finding(s).

Agent Over-Engineering Ratio 10.5/100 · LOW

Are wrappers, guards, and repeated structures necessary? 62 finding(s).

PR Review Velocity Impact 14.9/100 · LOW

Which changes need focused human review? 122 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 56LOW 66

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 122 distinct pattern matches across 7 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 Separators46 hits · 144 pts

Severity	File	Line	Snippet	Context
MEDIUM	packages/virtual-core/tests/range.test.ts	9	// ─── defaultRangeExtractor ───────────────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/range.test.ts	132	// ─── Lazy fast path (lanes === 1) edge cases ─────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/ios-deferral.test.ts	14	// ─── iOS momentum-safe scroll adjustments ───────────────────────────────────	COMMENT
MEDIUM⚡	packages/virtual-core/tests/ios-deferral.test.ts	383	// ─── #1307: orderings the hold has to get right, and ones to keep ───────────	COMMENT
MEDIUM⚡	packages/virtual-core/tests/ios-deferral.test.ts	383	// ─── #1307: orderings the hold has to get right, and ones to keep ───────────	COMMENT
MEDIUM	packages/virtual-core/tests/ios-deferral.test.ts	645	// ─── Phase 1: touch event distinction ────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/ios-deferral.test.ts	1082	// ─── Phase 2a: subpixel scrollTop reconciliation ─────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/ios-deferral.test.ts	1154	// ─── Phase 2b: scrollTopMax elastic-overscroll clamp ─────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/index.test.ts	257	// ─── setOptions behavioral contract ──────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/index.test.ts	489	// ─── Public-exports lockdown ─────────────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/measurement.test.ts	8	// ─── resizeItem / measurement cache invalidation ─────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/measurement.test.ts	267	// ─── elementsCache leak: disconnected node cleanup ───────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/measurement.test.ts	618	// ─── pending min pointer for measure storms ──────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/measurement.test.ts	735	// ─── ResizeObserver batching ─────────────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/bench.bench.ts	25	// ─── Exp 1: Cold-mount cost — getMeasurements with no measured items ─────────	COMMENT
MEDIUM	packages/virtual-core/tests/bench.bench.ts	61	// ─── Layer 1: Map clone bug — resizeItem under measure storm ─────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/bench.bench.ts	175	// ─── Layer 2: setOptions per render ──────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/bench.bench.ts	203	// ─── Scroll loop: per-scroll-frame cost (calculateRange + memo machinery) ─────	COMMENT
MEDIUM	packages/virtual-core/tests/bench.bench.ts	230	// ─── Layer 6: defaultRangeExtractor ──────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/bench.bench.ts	247	// ─── Multi-lane: cold-mount lane assignment (getFurthestMeasurement) ──────────	COMMENT
MEDIUM	packages/virtual-core/tests/dom-observers.test.ts	11	// ─── elementScroll / windowScroll public exports ─────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/dom-observers.test.ts	79	// ─── observeElementOffset / observeWindowOffset ──────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/dom-observers.test.ts	158	// ─── cleanup resets the scroll flags ─────────────────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1028	// ─── a prepend must not strand a travelling smooth scroll ────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1137	// ─── #1257: paddingEnd must not make scrollToIndex(last) overshoot the last item ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1137	// ─── #1257: paddingEnd must not make scrollToIndex(last) overshoot the last item ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1198	// ─── #1001: getMaxScrollOffset() preserves lane-max for multi-lane layouts ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1198	// ─── #1001: getMaxScrollOffset() preserves lane-max for multi-lane layouts ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1255	// ─── #1257: paddingEnd=0 is a no-op ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1255	// ─── #1257: paddingEnd=0 is a no-op ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1300	// ─── #1257: scrollPaddingEnd still applies to the last item ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1300	// ─── #1257: scrollPaddingEnd still applies to the last item ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1360	// ─── #1257: scrollToEnd() still reaches the DOM bottom ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/scroll-commands.test.ts	1360	// ─── #1257: scrollToEnd() still reaches the DOM bottom ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/ios-fling-wait.test.ts	5	// ─── #1307 step 3: iOS 27, where a fling carries on past a write ────────────	COMMENT
MEDIUM	packages/virtual-core/tests/ios-fling-wait.test.ts	5	// ─── #1307 step 3: iOS 27, where a fling carries on past a write ────────────	COMMENT
MEDIUM	packages/virtual-core/tests/ios-fling-wait.test.ts	538	// ─── Android: a fling carries on from a write ───────────────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/adjustment.test.ts	157	// ─── scroll direction vs. self-write read-backs ─────────────────────────────	COMMENT
MEDIUM⚡	packages/virtual-core/tests/adjustment.test.ts	439	// ─── #1218: viewport-spanning item growth must not drift the viewport ─────────	COMMENT
MEDIUM⚡	packages/virtual-core/tests/adjustment.test.ts	439	// ─── #1218: viewport-spanning item growth must not drift the viewport ─────────	COMMENT
MEDIUM	packages/virtual-core/tests/anchor-end.test.ts	8	// ─── end anchoring / chat-style reverse virtualization ──────────────────────	COMMENT
MEDIUM	packages/virtual-core/tests/anchor-end.test.ts	428	// ─── #1229: negative tracked scrollOffset must not survive compensation ─────	COMMENT
MEDIUM	packages/virtual-core/tests/anchor-end.test.ts	428	// ─── #1229: negative tracked scrollOffset must not survive compensation ─────	COMMENT
MEDIUM	packages/virtual-core/tests/anchor-end.test.ts	536	// ─── #1258: compensation write clamped by a not-yet-grown sizer ─────────────	COMMENT
MEDIUM	packages/virtual-core/tests/anchor-end.test.ts	536	// ─── #1258: compensation write clamped by a not-yet-grown sizer ─────────────	COMMENT
MEDIUM	packages/virtual-core/src/index.ts	1698	// ─── Fast path: single-lane lazy materialization ────────────────────	COMMENT

Over-Commented Block34 hits · 34 pts

Severity	File	Line	Snippet	Context
LOW	examples/svelte/infinite-scroll/src/vite-env.d.ts	1	/// <reference types="svelte" />	COMMENT
LOW	examples/svelte/dynamic/src/vite-env.d.ts	1	/// <reference types="svelte" />	COMMENT
LOW	examples/svelte/sticky/src/vite-env.d.ts	1	/// <reference types="svelte" />	COMMENT
LOW	examples/svelte/fixed/src/vite-env.d.ts	1	/// <reference types="svelte" />	COMMENT
LOW	examples/svelte/table/src/vite-env.d.ts	1	/// <reference types="svelte" />	COMMENT
LOW	examples/svelte/smooth-scroll/src/vite-env.d.ts	1	/// <reference types="svelte" />	COMMENT
LOW	benchmarks/src/lib/harness.ts	241	) {	COMMENT
LOW	packages/marko-virtual/e2e/app/playwright.config.ts	1	import { defineConfig } from '@playwright/test'	COMMENT
LOW	packages/marko-virtual/e2e/app/playwright.config.ts	21	// are sensitive to machine load; one worker keeps a failure meaningful. The whole	COMMENT
LOW	…marko-virtual/e2e/app/src/routes/api/reply/+handler.ts	1	// The chat fixtures POST to an absolute /api/reply, so the streaming handler is	COMMENT
LOW	…s/marko-virtual/src/tags/window-virtualizer/options.ts	41	// Two instances measuring the SAME element (a grid cell) need distinct attributes.	COMMENT
LOW	…s/marko-virtual/src/tags/window-virtualizer/options.ts	61	isRtl?: boolean	COMMENT
LOW	packages/marko-virtual/src/tags/virtualizer/options.ts	41	initialMeasurementsCache?: Array<VirtualItem>	COMMENT
LOW	packages/marko-virtual/src/tags/virtualizer/options.ts	61	// Use the native scrollend event instead of the isScrollingResetDelay timer.	COMMENT
LOW	packages/virtual-core/tests/ios-deferral.test.ts	481	h.scroll(true)	COMMENT
LOW	packages/virtual-core/tests/scroll-commands.test.ts	1141	// scroll past the rendered end of the last item. The fix uses	COMMENT
LOW	packages/virtual-core/tests/lane-equivalence.test.ts	1	// Differential ("oracle") test for the multi-lane lane-assignment optimization.	COMMENT
LOW	packages/virtual-core/tests/scroll-trace.test.ts	1	import { describe, expect, test } from 'vitest'	COMMENT
LOW	packages/virtual-core/tests/scroll-trace.test.ts	21	// that changes behaviour updates it (`vitest -u`), and the snapshot diff shows	COMMENT
LOW	packages/virtual-core/tests/adjustment.test.ts	341	})	COMMENT
LOW	packages/virtual-core/tests/prepend-hold.test.ts	1	import { expect, test } from 'vitest'	COMMENT
LOW	packages/virtual-core/src/scroll-classifier.ts	1	import { approxEqual } from './utils'	COMMENT
LOW	packages/virtual-core/src/scroll-classifier.ts	101	}	COMMENT
LOW	packages/virtual-core/src/scroll-classifier.ts	161	// are the fling's events.	COMMENT
LOW	packages/virtual-core/src/index.ts	521	private _holdOffset = 0	COMMENT
LOW	packages/virtual-core/src/index.ts	581	this._writeAwaitingCommand()	COMMENT
LOW	packages/virtual-core/src/index.ts	601	// further by the time it reports.	COMMENT
LOW	packages/virtual-core/src/index.ts	881	if (edgeKeysChanged) {	COMMENT
LOW	packages/virtual-core/src/index.ts	981	// Eagerly carry the intended target in `scrollOffset` so callers that	COMMENT
LOW	packages/virtual-core/src/index.ts	1041	// The debounce cancelled above is the only thing that writes `isScrolling`	COMMENT
LOW	packages/virtual-core/src/index.ts	2101	)	COMMENT
LOW	packages/virtual-core/src/index.ts	2501	// frame and the fling carries on along its own path (#1307, step 3);	COMMENT
LOW	packages/virtual-core/src/index.ts	2681	// somewhere on the way) and without a command, so a write the browser	COMMENT
LOW	packages/virtual-core/src/ios-gesture.ts	61	// a finger drags the content (one resting on it does not stop the write)	COMMENT

Modern AI Meta-Vocabulary9 hits · 27 pts

Severity	File	Line	Snippet	Context
MEDIUM	examples/angular/infinite-scroll/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/dynamic/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/variable/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/sticky/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/fixed/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/table/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/window/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/padding/README.md	9	## Code scaffolding	COMMENT
MEDIUM	examples/angular/smooth-scroll/README.md	9	## Code scaffolding	COMMENT

Verbosity Indicators8 hits · 18 pts

Severity	File	Line	Snippet	Context
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	13	// Step 1: Expand A → should grow to ~160px	COMMENT
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	17	// Step 2: Collapse A → back to ~36px	COMMENT
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	21	// Step 3: Delete A	COMMENT
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	25	// Step 4: Expand B → should grow to ~160px	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	13	// Step 1: Expand A → should grow to ~160px	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	17	// Step 2: Collapse A → back to ~36px	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	21	// Step 3: Delete A	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	25	// Step 4: Expand B → should grow to ~160px	COMMENT

Structural Annotation Overuse8 hits · 18 pts

Severity	File	Line	Snippet	Context
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	13	// Step 1: Expand A → should grow to ~160px	COMMENT
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	17	// Step 2: Collapse A → back to ~36px	COMMENT
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	21	// Step 3: Delete A	COMMENT
LOW⚡	…s/angular-virtual/e2e/app/test/measure-element.spec.ts	25	// Step 4: Expand B → should grow to ~160px	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	13	// Step 1: Expand A → should grow to ~160px	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	17	// Step 2: Collapse A → back to ~36px	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	21	// Step 3: Delete A	COMMENT
LOW⚡	…ges/react-virtual/e2e/app/test/measure-element.spec.ts	25	// Step 4: Expand B → should grow to ~160px	COMMENT

Hyper-Verbose Identifiers16 hits · 17 pts

Severity	File	Line	Snippet	Context
LOW	examples/react/dynamic/src/main.tsx	292	function RowVirtualizerExperimental() {	CODE
LOW	examples/react/variable/src/main.tsx	107	function ColumnVirtualizerVariable({ columns }: { columns: Array<number> }) {	CODE
LOW	examples/react/variable/src/main.tsx	236	function MasonryVerticalVirtualizerVariable({ rows }: { rows: Array<number> }) {	CODE
LOW	examples/react/variable/src/main.tsx	287	function MasonryHorizontalVirtualizerVariable({	CODE
LOW	scripts/verify-links.ts	51	function fileExistsForMarkdownLink(	CODE
LOW	packages/angular-virtual/src/index.ts	51	function injectScheduleDomFlushViaAppRefTick() {	CODE
LOW⚡	packages/virtual-core/tests/ios-deferral.test.ts	392	function landedIndexScrollWithResizeAbove(ios = true) {	CODE
LOW	packages/virtual-core/tests/ios-deferral.test.ts	647	function makeIOSVirtualizerWithRealEl(	CODE
LOW	packages/virtual-core/tests/ios-deferral.test.ts	958	function makeIOSVirtualizerWithSwappableEl(	CODE
LOW	packages/virtual-core/tests/measurement.test.ts	1001	function createDeferredVirtualizer(el: HTMLDivElement) {	CODE
LOW	packages/virtual-core/tests/scroll-commands.test.ts	1037	function createSmoothPrependVirtualizer() {	CODE
LOW	packages/virtual-core/tests/adjustment.test.ts	169	function createAdjustmentVirtualizer({	CODE
LOW⚡	packages/virtual-core/tests/adjustment.test.ts	444	function makeAdjustmentVirtualizer(scrollTop: number) {	CODE
LOW	packages/virtual-core/src/index.ts	2760	function findNearestBinarySearchFlat(	CODE
LOW	packages/virtual-core/src/lazy-measurements.ts	14	export function createLazyMeasurementsView(	CODE
LOW	packages/react-virtual/e2e/app/test/chat.spec.ts	64	async function waitForFirstVisibleAtOffset(page: Page, scrollTop: number) {	CODE

AI Slop Vocabulary1 hit · 3 pts

Severity	File	Line	Snippet	Context
MEDIUM	packages/marko-virtual/e2e/app/e2e/ssr-fetch.spec.ts	10	// contiguous chunks, so emails are the robust view-source probe for serialized data.	COMMENT

TanStack/virtual

Open-Source Code Quality, Security and Technical Debt Review