A CSS-first, native, zero-build layout and styling framework for web designers.
This report summarizes scanner evidence for foundation/yeti, a JavaScript project with 29,805 GitHub stars. SynthScan examined 42,257 lines of code across 434 source files, recording 30 pattern matches distributed across 4 syntactic categories. The legacy adjusted pattern signal is 0.9 (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? 28 finding(s).
Are imports declared and package/API names verified? 2 finding(s).
Are wrappers, guards, and repeated structures necessary? 3 finding(s).
Which changes need focused human review? 30 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 30 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 |
|---|---|---|---|---|
| LOW | playwright.config.js | 1 | import { defineConfig, devices } from 'playwright/test'; | COMMENT |
| LOW | test/tools/validate.test.js | 1001 | // into attributes.css, so validateVocabulary cannot see it: a pair added to | COMMENT |
| LOW | test/browser/lib/layout.js | 1 | // Shared helpers for the layout fixtures. Every fixture wraps its layout in | COMMENT |
| LOW | bin/shots.js | 1 | #!/usr/bin/env node | COMMENT |
| LOW | bin/gen-docs.js | 41 | // reference page is table and the widest of them do not fit a phone. The | COMMENT |
| LOW | bin/gen-docs.js | 81 | // The srcdoc value's newlines are encoded, because an attribute cannot span | COMMENT |
| LOW | bin/gen-docs.js | 101 | // and an example that composes components gets all of their scripts. | COMMENT |
| LOW | bin/gen-types.js | 1 | #!/usr/bin/env node | COMMENT |
| LOW | bin/validate-html.js | 1 | #!/usr/bin/env node | COMMENT |
| LOW | bin/frozen.js | 1 | #!/usr/bin/env node | COMMENT |
| LOW | bin/lib/html.js | 1 | // Thin wrapper over parse5 for the validator. Examples are HTML fragments, | COMMENT |
| LOW | bin/lib/minify-css.js | 1 | // dist/yeti.min.css. lightningcss is the one dev dependency whose work | COMMENT |
| LOW | bin/lib/minify-js.js | 1 | // dist/yeti.min.js. esbuild minifies the module bundle the way lightningcss | COMMENT |
| LOW | src/utilities/enter/enter.js | 1 | // Enter: data-once. enter.css gives a `.enter[data-once]` element (and, with | COMMENT |
| LOW | src/components/demo/demo.js | 1 | // Demo frames. A framed demo carries its example twice, once escaped into the | COMMENT |
| LOW | src/components/tabs/tabs.js | 41 | } | COMMENT |
| LOW | src/components/dropdown/hover.js | 1 | // Dropdown, opening on hover. Nothing but script can open a popover, so a menu | COMMENT |
| LOW | src/components/toc/toc.js | 1 | // On-page nav: the link whose heading is topmost in view is the current one. | COMMENT |
| LOW | src/components/field/range.js | 1 | // Range: the filled track and the value readout follow the thumb. | COMMENT |
| LOW | src/components/field/validate.js | 1 | // Form validation: the browser already knows what is wrong with a control and | COMMENT |
| LOW | src/components/field/validate.js | 21 | // message catalogue: everything it says comes from the platform. | COMMENT |
| LOW | src/components/carousel/carousel.js | 1 | // Carousel dots. The dots are links to slide ids so that the component works | COMMENT |
| LOW | src/components/carousel/carousel.js | 21 | // Only a dot pointing at a slide of its own carousel is ours to handle. | COMMENT |
| LOW | src/components/dialog/dialog.js | 1 | // Dialog: the browser opens it. A button carrying commandfor="<id>" and | COMMENT |
| LOW | src/components/dialog/dialog.js | 21 | return event.clientX < box.left || event.clientX > box.right || event.clientY < box.top || event.clientY > box.bottom; | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | test/tools/gen-types.test.js | 91 | const expected = tokensSchema.items.properties.group.enum.map((g) => `'${g}'`).join(' | '); | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | bin/validate.js | 550 | export function validateAnchorsAndContainers(srcDir) { | CODE |
| LOW | bin/validate.js | 709 | export function findNestedThresholdClusters(tree, file, lineOffset = 0) { | CODE |
| LOW | bin/validate.js | 726 | export function findUntrackedGridPlacement(tree, file, lineOffset = 0) { | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | bin/lib/validate-themes.js | 30 | const PSEUDO_ELEMENTS = new Set(['selection', 'marker', 'placeholder', 'first-line', 'first-letter']); | CODE |