The instant on-demand atomic CSS engine.
This report summarizes scanner evidence for unocss/unocss, a TypeScript project with 18,991 GitHub stars. SynthScan examined 153,588 lines of code across 1616 source files, recording 164 pattern matches distributed across 4 syntactic categories. The legacy adjusted pattern signal is 3.4 (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.
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.
Can maintainers explain intent, assumptions, and trade-offs? 121 finding(s).
Are imports declared and package/API names verified? 43 finding(s).
Are wrappers, guards, and repeated structures necessary? 107 finding(s).
Which changes need focused human review? 164 finding(s).
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.
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.
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.
The scanner identified 164 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.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | playground/__play.html | 34 | if (window.parent.document.body.parentElement.className.includes('dark')) root.classList.toggle('dark', true) | CODE |
| CRITICAL | packages-presets/preset-mini/src/_utils/utilities.ts | 20 | const v = theme.spacing?.[size || 'DEFAULT'] ?? h.bracket.cssvar.global.auto.fraction.rem(size) | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/border.ts | 128 | const v = theme.borderRadius?.[s || 'DEFAULT'] || h.bracket.cssvar.global.fraction.rem(s || '1') | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/flex.ts | 21 | [/^(?:flex-)?basis-(.+)$/, ([, d], { theme }) => ({ 'flex-basis': theme.spacing?.[d] ?? h.bracket.cssvar.auto.fraction | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/static.ts | 84 | return { [`contain-intrinsic-${sizeMap[d as keyof typeof sizeMap] ?? 'size'}`]: h.bracket.cssvar.global.fraction.rem | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/position.ts | 146 | return theme.spacing?.[v] ?? h.bracket.cssvar.global.auto.fraction.rem(v) | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/position.ts | 197 | [/^(?:position-|pos-)?z-(.+)$/, ([, v], { theme }: RuleContext<Theme>) => ({ 'z-index': theme.zIndex?.[v] ?? h.bracket | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/svg.ts | 39 | return { 'stroke-width': theme.lineWidth?.[b] ?? h.bracket.cssvar.fraction.px.number(b) } | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/size.ts | 34 | return h.bracket.cssvar.global.auto.fraction.rem(prop) | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/size.ts | 78 | return h.bracket.cssvar.global.auto.number(prop) | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/decoration.ts | 19 | [/^(?:underline|decoration)-offset-(.+)$/, ([, s], { theme }) => ({ 'text-underline-offset': theme.lineWidth?.[s] ?? h | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/color.ts | 25 | return { 'background-position': h.bracketOfPosition(d)!.split(' ').map(e => h.position.fraction.auto.px.cssvar(e) | CODE |
| CRITICAL | packages-presets/preset-mini/src/_rules/typography.ts | 103 | [/^indent(?:-(.+))?$/, ([, s], { theme }) => ({ 'text-indent': theme.textIndent?.[s || 'DEFAULT'] || h.bracket.cssvar. | CODE |
| CRITICAL | packages-presets/preset-wind3/src/rules/table.ts | 30 | const v = theme.spacing?.[s] ?? h.bracket.cssvar.global.auto.fraction.rem(s) | CODE |
| CRITICAL | packages-presets/preset-wind3/src/rules/table.ts | 41 | const v = theme.spacing?.[s] ?? h.bracket.cssvar.global.auto.fraction.rem(s) | CODE |
| CRITICAL | packages-presets/preset-wind3/src/rules/static.ts | 83 | return { 'object-position': h.bracketOfPosition(d)!.split(' ').map(e => h.position.fraction.auto.px.cssvar(e) ?? e | CODE |
| CRITICAL | packages-presets/preset-wind3/src/rules/spacing.ts | 13 | let v = theme.spacing?.[s || 'DEFAULT'] ?? h.bracket.cssvar.auto.fraction.rem(s || '1') | CODE |
| CRITICAL | packages-presets/preset-wind4/src/utils/utilities.ts | 58 | v = h.bracket.cssvar.global.auto.fraction.rem(isNegative ? `-${size}` : size, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/border.ts | 73 | const v = h.bracket.bracketOfLength.cssvar.global.px(b, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/border.ts | 116 | const _v = theme.radius?.[s] ?? h.bracket.cssvar.global.fraction.rem(s, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/flex.ts | 34 | return { 'flex-basis': h.bracket.cssvar.auto.fraction.rem(d, theme) } | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/table.ts | 66 | v = h.bracket.cssvar.global.auto.fraction.rem(s, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/scrolls.ts | 51 | value = h.bracket.cssvar.global.fraction.rem(v, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/scrolls.ts | 75 | value = h.bracket.cssvar.global.fraction.rem(v, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/static.ts | 97 | return { [`contain-intrinsic-${sizeMap[d as keyof typeof sizeMap] ?? 'size'}`]: h.bracket.cssvar.global.fraction.rem | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/static.ts | 257 | return { 'object-position': position.split(' ').map(e => h.position.fraction.auto.px.cssvar(e) ?? e).join(' ') } | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/transform.ts | 111 | const v = numberResolver(b) ?? h.bracket.cssvar.none.fraction.rem(b, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/transform.ts | 132 | const v = h.bracket.cssvar.none.fraction.percent(b, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/position.ts | 152 | return h.bracket.cssvar.global.auto.fraction.rem(v, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/position.ts | 205 | [/^(?:position-|pos-)?z-(.+)$/, ([, v], { theme }) => ({ 'z-index': h.bracket.cssvar.global.auto.number(v, theme) }), | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/svg.ts | 39 | return { 'stroke-width': h.bracket.cssvar.fraction.px.number(b, theme) } | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/size.ts | 50 | return v ?? h.bracket.cssvar.global.auto.none.fraction.rem(prop, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/size.ts | 100 | return h.bracket.cssvar.global.auto.number(prop, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/decoration.ts | 19 | [/^(?:underline|decoration)-offset-(.+)$/, ([, s], { theme }) => ({ 'text-underline-offset': h.auto.bracket.cssvar.glo | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/color.ts | 29 | return { 'background-position': bracketPosition.split(' ').map(e => h.position.fraction.auto.px.cssvar(e) ?? e).jo | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/typography.ts | 231 | v = h.bracket.cssvar.auto.global.rem(s, theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/spacing.ts | 54 | v = theme.spacing?.[s] ?? h.bracket.cssvar.auto.fraction.rem(s || '1', theme) | CODE |
| CRITICAL | packages-presets/preset-wind4/src/rules/mask.ts | 135 | const _v = h.bracket.cssvar.global.fraction.rem(v, ctx?.theme) | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | virtual-shared/integration/src/match-positions.ts | 21 | export function getPlainClassMatchedPositionsForPug(codeSplit: string, matchedPlain: Set<string>, start: number) { | CODE |
| LOW | virtual-shared/integration/src/match-positions.ts | 122 | function highlightLessGreaterThanSign(str: string) { | CODE |
| LOW | virtual-shared/integration/src/match-positions.ts | 202 | export async function getMatchedPositionsFromCode( | CODE |
| LOW | virtual-shared/integration/src/layers.ts | 50 | export function getCssEscaperForJsContent(view: string) { | CODE |
| LOW | test/api-snapshot-utils.ts | 6 | export function normalizeRuntimeChunkHashes(text: string): string { | CODE |
| LOW | test/api-snapshot-utils.ts | 11 | export function normalizeValueHandlerKeys(text: string): string { | CODE |
| LOW | …nocss/extractor-arbitrary-variants/index.snapshot.d.ts | 5 | export declare function extractorArbitraryVariants(): Extractor; | CODE |
| LOW | …nocss/extractor-arbitrary-variants/index.snapshot.d.ts | 6 | export declare function splitCodeWithArbitraryVariants(_: string): string[]; | CODE |
| LOW | …@unocss/extractor-arbitrary-variants/index.snapshot.js | 5 | export function extractorArbitraryVariants() {} | CODE |
| LOW | …@unocss/extractor-arbitrary-variants/index.snapshot.js | 6 | export function splitCodeWithArbitraryVariants(_) {} | CODE |
| LOW | …shots__/tsnapi/@unocss/preset-mini/utils.snapshot.d.ts | 39 | export declare function resolveVerticalBreakpoints(_: Readonly<VariantContext<Theme>>): { | CODE |
| LOW⚡ | …ts__/tsnapi/@unocss/preset-mini/variants.snapshot.d.ts | 6 | export declare function variantColorsMediaOrClass(_?: PresetMiniOptions): Variant[]; | CODE |
| LOW⚡ | …ts__/tsnapi/@unocss/preset-mini/variants.snapshot.d.ts | 8 | export declare function variantPseudoClassesAndElements(): VariantObject[]; | CODE |
| LOW⚡ | …ts__/tsnapi/@unocss/preset-mini/variants.snapshot.d.ts | 9 | export declare function variantPseudoClassFunctions(): VariantObject; | CODE |
| LOW⚡ | …ts__/tsnapi/@unocss/preset-mini/variants.snapshot.d.ts | 11 | export declare function variantTaggedAriaAttributes(_?: PresetMiniOptions): Variant[]; | CODE |
| LOW⚡ | …ts__/tsnapi/@unocss/preset-mini/variants.snapshot.d.ts | 12 | export declare function variantTaggedDataAttributes(_?: PresetMiniOptions): Variant[]; | CODE |
| LOW⚡ | …ts__/tsnapi/@unocss/preset-mini/variants.snapshot.d.ts | 13 | export declare function variantTaggedPseudoClasses(_?: PresetMiniOptions): VariantObject[]; | CODE |
| LOW⚡ | …hots__/tsnapi/@unocss/preset-mini/variants.snapshot.js | 6 | export function variantColorsMediaOrClass(_) {} | CODE |
| LOW⚡ | …hots__/tsnapi/@unocss/preset-mini/variants.snapshot.js | 8 | export function variantPseudoClassesAndElements() {} | CODE |
| LOW⚡ | …hots__/tsnapi/@unocss/preset-mini/variants.snapshot.js | 9 | export function variantPseudoClassFunctions() {} | CODE |
| LOW⚡ | …hots__/tsnapi/@unocss/preset-mini/variants.snapshot.js | 11 | export function variantTaggedAriaAttributes(_) {} | CODE |
| LOW⚡ | …hots__/tsnapi/@unocss/preset-mini/variants.snapshot.js | 12 | export function variantTaggedDataAttributes(_) {} | CODE |
| LOW⚡ | …hots__/tsnapi/@unocss/preset-mini/variants.snapshot.js | 13 | export function variantTaggedPseudoClasses(_) {} | CODE |
| LOW | …/tsnapi/@unocss/preset-attributify/index.snapshot.d.ts | 29 | export declare function autocompleteExtractorAttributify(_?: AttributifyOptions): AutoCompleteExtractor; | CODE |
| LOW | …__/tsnapi/@unocss/preset-attributify/index.snapshot.js | 5 | export function autocompleteExtractorAttributify(_) {} | CODE |
| LOW | …/__snapshots__/tsnapi/@unocss/config/index.snapshot.js | 5 | export function createRecoveryConfigLoader() {} | CODE |
| LOW | …apshots__/tsnapi/@unocss/inspector/index.snapshot.d.ts | 21 | export declare function createStandaloneInspectorDevframe(_?: StandaloneInspectorOptions): Promise<UnocssInspectorDevfra | CODE |
| LOW | …snapshots__/tsnapi/@unocss/inspector/index.snapshot.js | 6 | export async function createStandaloneInspectorDevframe(_) {} | CODE |
| LOW | …hots__/tsnapi/@unocss/inspector/devframe.snapshot.d.ts | 21 | export declare function createStandaloneInspectorDevframe(_?: StandaloneInspectorOptions): Promise<UnocssInspectorDevfra | CODE |
| LOW | …hots__/tsnapi/@unocss/preset-wind4/utils.snapshot.d.ts | 70 | export declare function resolveVerticalBreakpoints(_: Readonly<VariantContext<Theme>>): { | CODE |
| LOW⚡ | …s__/tsnapi/@unocss/preset-wind4/variants.snapshot.d.ts | 6 | export declare function variantColorsMediaOrClass(_?: PresetWind4Options): Variant<Theme>[]; | CODE |
| LOW⚡ | …s__/tsnapi/@unocss/preset-wind4/variants.snapshot.d.ts | 8 | export declare function variantPseudoClassesAndElements(): VariantObject<Theme>[]; | CODE |
| LOW⚡ | …s__/tsnapi/@unocss/preset-wind4/variants.snapshot.d.ts | 9 | export declare function variantPseudoClassFunctions(): VariantObject<Theme>; | CODE |
| LOW⚡ | …s__/tsnapi/@unocss/preset-wind4/variants.snapshot.d.ts | 11 | export declare function variantTaggedPseudoClasses(_?: PresetWind4Options): VariantObject<Theme>[]; | CODE |
| LOW | …pshots__/tsnapi/@unocss/preset-wind4/rules.snapshot.js | 6 | export function notLastChildSelectorVariant(_) {} | CODE |
| LOW⚡ | …ots__/tsnapi/@unocss/preset-wind4/variants.snapshot.js | 6 | export function variantColorsMediaOrClass(_) {} | CODE |
| LOW⚡ | …ots__/tsnapi/@unocss/preset-wind4/variants.snapshot.js | 8 | export function variantPseudoClassesAndElements() {} | CODE |
| LOW⚡ | …ots__/tsnapi/@unocss/preset-wind4/variants.snapshot.js | 9 | export function variantPseudoClassFunctions() {} | CODE |
| LOW⚡ | …ots__/tsnapi/@unocss/preset-wind4/variants.snapshot.js | 11 | export function variantTaggedPseudoClasses(_) {} | CODE |
| LOW | …hots__/tsnapi/@unocss/preset-wind4/rules.snapshot.d.ts | 6 | export declare function notLastChildSelectorVariant(_: string): VariantHandler; | CODE |
| LOW | …pshots__/tsnapi/@unocss/rule-utils/index.snapshot.d.ts | 61 | export declare function generateBreakpointMediaQuery(_: string, _?: 'lt' | 'at', _?: string): string; | CODE |
| LOW | …pshots__/tsnapi/@unocss/rule-utils/index.snapshot.d.ts | 75 | export declare function resolveVerticalBreakpoints(_: BreakpointsContext): { | CODE |
| LOW⚡ | …napshots__/tsnapi/@unocss/rule-utils/index.snapshot.js | 9 | export function createPseudoClassesAndElements(_) {} | CODE |
| LOW⚡ | …napshots__/tsnapi/@unocss/rule-utils/index.snapshot.js | 10 | export function createPseudoClassFunctions(_) {} | CODE |
| LOW⚡ | …napshots__/tsnapi/@unocss/rule-utils/index.snapshot.js | 11 | export function createTaggedPseudoClasses(_, _) {} | CODE |
| LOW⚡ | …napshots__/tsnapi/@unocss/rule-utils/index.snapshot.js | 12 | export function createTaggedPseudoClassMatcher(_, _, _, _) {} | CODE |
| LOW⚡ | …napshots__/tsnapi/@unocss/rule-utils/index.snapshot.js | 14 | export function generateBreakpointMediaQuery(_, _, _) {} | CODE |
| LOW | …napshots__/tsnapi/@unocss/rule-utils/index.snapshot.js | 25 | export function resolveVerticalBreakpoints(_) {} | CODE |
| LOW | …s__/tsnapi/@unocss/language-server/index.snapshot.d.ts | 85 | export declare function getMatchedPositionsFromCode(_: UnoGenerator, _: string, _?: string, _?: GetMatchedPositionsOptio | CODE |
| LOW | …s__/tsnapi/@unocss/language-server/index.snapshot.d.ts | 86 | export declare function getMatchedPositionsFromDoc(_: UnoGenerator, _: string, _: string, _?: boolean, _?: boolean): any | CODE |
| LOW | …s__/tsnapi/@unocss/language-server/index.snapshot.d.ts | 100 | export declare function shouldProvideAutocomplete(_: string, _: string, _: number): boolean; | CODE |
| LOW⚡ | …ots__/tsnapi/@unocss/language-server/index.snapshot.js | 51 | export async function getMatchedPositionsFromCode(_, _, _, _) {} | CODE |
| LOW⚡ | …ots__/tsnapi/@unocss/language-server/index.snapshot.js | 52 | export function getMatchedPositionsFromDoc(_, _, _, _, _) {} | CODE |
| LOW⚡ | …ots__/tsnapi/@unocss/language-server/index.snapshot.js | 58 | export function shouldProvideAutocomplete(_, _, _) {} | CODE |
| LOW | …unocss/transformer-attributify-jsx/index.snapshot.d.ts | 29 | export default function transformerAttributifyJsx(_?: TransformerAttributifyJsxOptions): SourceCodeTransformer; | CODE |
| LOW | packages-engine/core/src/config.ts | 301 | function mergeAutocompleteShorthands(shorthands: Record<string, string | string[]>[]) { | CODE |
| LOW | packages-engine/autocomplete/src/parse.ts | 228 | function getValuesFromPartTemplate(part: AutocompleteTemplatePart): string[] { | CODE |
| LOW | …ages-presets/extractor-arbitrary-variants/src/index.ts | 13 | export function splitCodeWithArbitraryVariants(code: string): string[] { | CODE |
| LOW | …ages-presets/extractor-arbitrary-variants/src/index.ts | 46 | export function extractorArbitraryVariants(): Extractor { | CODE |
| LOW | packages-presets/preset-mini/src/_utils/utilities.ts | 280 | export function resolveVerticalBreakpoints(context: Readonly<VariantContext<Theme>>) { | CODE |
| 47 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | virtual-shared/integration/src/match-positions.ts | 21 | export function getPlainClassMatchedPositionsForPug(codeSplit: string, matchedPlain: Set<string>, start: number) { | COMMENT |
| LOW | test/assets/output/preset-wind4-important-string.css | 1 | /* layer: properties */ | COMMENT |
| LOW | test/assets/output/preset-wind3-important-string.css | 1 | /* layer: default */ | COMMENT |
| LOW | …hots__/tsnapi/@unocss/preset-wind4/utils.snapshot.d.ts | 101 | // #region Re-exports | COMMENT |
| LOW | …pshots__/tsnapi/@unocss/preset-wind4/index.snapshot.js | 21 | // #endregion | COMMENT |
| LOW | …ots__/tsnapi/@unocss/language-server/index.snapshot.js | 61 | // #region Variables | COMMENT |
| LOW | packages-engine/autocomplete/src/parse.ts | 201 | // combinations = combinations.map(i => i + part.value) | COMMENT |
| LOW | examples/sveltekit-scoped/src/app.d.ts | 1 | // See https://kit.svelte.dev/docs/types#app | COMMENT |
| LOW | examples/vite-svelte-scoped/src/vite-env.d.ts | 1 | /// <reference types="svelte" /> | COMMENT |
| LOW | examples/vite-svelte/src/vite-env.d.ts | 1 | /// <reference types="svelte" /> | COMMENT |
| LOW | examples/sveltekit/src/app.d.ts | 1 | // See https://kit.svelte.dev/docs/types#app | COMMENT |
| LOW | examples/vite-vue3/uno.config.ts | 21 | }, | COMMENT |
| LOW | examples/vite-vue3/uno.config.ts | 41 | // }, | COMMENT |
| LOW | examples/vite-svelte-postcss/src/vite-env.d.ts | 1 | /// <reference types="svelte" /> | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | packages-presets/preset-attributify/src/extractor.ts | 15 | export const defaultIgnoreAttributes = ['placeholder', 'fill', 'opacity', 'stroke-opacity'] | CODE |
| LOW | packages-presets/preset-wind3/src/rules/placeholder.ts | 7 | [/^\$ placeholder-(.+)$/, colorResolver('color', 'placeholder', 'accentColor'), { autocomplete: 'placeholder-$colors' | CODE |
| LOW | packages-presets/preset-wind4/src/rules/placeholder.ts | 8 | [/^\$ placeholder-(.+)$/, colorResolver('color', 'placeholder'), { autocomplete: 'placeholder-$colors' }], | CODE |
| LOW | packages-presets/rule-utils/src/pseudo.ts | 75 | ['placeholder', '::placeholder'], | CODE |
| LOW | packages-integrations/inspector/src/categories.ts | 273 | placeholder: 'placeholder', | CODE |