A modern self-hosted music player.
This report summarizes scanner evidence for jeffvli/feishin, a TypeScript project with 10,294 GitHub stars. SynthScan examined 236,360 lines of code across 1318 source files, recording 81 pattern matches distributed across 4 syntactic categories. The legacy adjusted pattern signal is 0.5 (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? 68 finding(s).
Are imports declared and package/API names verified? 0 finding(s).
Are wrappers, guards, and repeated structures necessary? 54 finding(s).
Which changes need focused human review? 81 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 81 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 | src/renderer/features/lyrics/api/lyrics-api.ts | 87 | export function computeSelectedFromResult( | CODE |
| LOW | src/renderer/features/playlists/utils.ts | 231 | function mapApiOperatorToDatePicker(operator: string, value: unknown): string { | CODE |
| LOW | src/renderer/features/playlists/utils.ts | 238 | function mapDatePickerOperatorToApi(operator: string): string { | CODE |
| LOW | …er/features/playlists/hooks/use-playlist-track-list.ts | 19 | export function applyClientSideSongFilters(songs: Song[], query: Record<string, unknown>): Song[] { | CODE |
| LOW | …res/search/components/search-album-artists-section.tsx | 29 | export function SearchAlbumArtistsSection({ | CODE |
| LOW | …/artists/components/album-artist-infinite-carousel.tsx | 138 | function useAlbumArtistListInfinite( | CODE |
| LOW | …sualizer/components/visualizer-system-audio-bridge.tsx | 22 | export function VisualizerSystemAudioBridgeHook() { | CODE |
| LOW | …sualizer/components/visualizer-system-audio-bridge.tsx | 47 | function VisualizerSystemAudioBridge() { | CODE |
| LOW | …ures/visualizer/components/butternchurn/visualizer.tsx | 36 | export function getButterchurnPresetOptions(presets: Record<string, string>) { | CODE |
| LOW | …ures/visualizer/components/butternchurn/visualizer.tsx | 48 | export async function loadAllButterchurnPresets(): Promise<Record<string, any>> { | CODE |
| LOW | …atures/player/utils/close-local-visualizer-surfaces.ts | 3 | export function closeLocalVisualizerSurfaces(): void { | CODE |
| LOW | …/renderer/features/player/components/audio-players.tsx | 88 | export function getDefaultTranscodingProfiles() { | CODE |
| LOW | …layer/hooks/use-is-local-visualizer-surface-visible.ts | 7 | export function useIsLocalVisualizerSurfaceVisible(): boolean { | CODE |
| LOW | …enderer/components/item-list/item-detail-list/utils.ts | 45 | export function isNoHorizontalPaddingColumn(columnId: TableColumn): boolean { | CODE |
| LOW | …enderer/components/item-list/item-detail-list/utils.ts | 53 | export function shouldShowHoverOnlyColumnContent( | CODE |
| LOW | …components/item-list/item-detail-list/columns/index.ts | 83 | export function getDetailListCellComponent( | CODE |
| LOW | …s/item-list/item-table-list/item-table-list-column.tsx | 412 | export function estimateAlbumGroupContentHeight({ | CODE |
| LOW | …s/item-list/item-table-list/item-table-list-column.tsx | 508 | export function getAlbumGroupStartRowIndex( | CODE |
| LOW | …item-list/item-table-list/table-scroll-shadow-store.ts | 9 | export function createTableScrollShadowStore() { | CODE |
| LOW | …mponents/item-list/item-table-list/item-table-list.tsx | 129 | const ItemTableScrollShadowLeft = memo(function ItemTableScrollShadowLeft({ | CODE |
| LOW | …mponents/item-list/item-table-list/item-table-list.tsx | 148 | const ItemTableScrollShadowRight = memo(function ItemTableScrollShadowRight({ | CODE |
| LOW | src/renderer/components/item-card/item-card.tsx | 179 | const ItemCardStandardImageArea = memo(function ItemCardStandardImageArea({ | CODE |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 247 | function buildGetTranscodeStreamUrl( | CODE |
| LOW | src/renderer/store/env-settings-overrides.ts | 543 | function isUnsubstitutedPlaceholder(s: string): boolean { | CODE |
| LOW | src/renderer/store/utils.ts | 32 | export async function migratePlayerStorePersist(storeName: string): Promise<void> { | CODE |
| LOW | src/renderer/store/player.store.ts | 193 | function adjustShuffledIndexesForInsertion( | CODE |
| LOW | src/renderer/store/player.store.ts | 319 | function findShuffledPositionForQueueIndex( | CODE |
| LOW | src/renderer/store/player.store.ts | 334 | function regenerateShuffledIndexesIfNeeded(state: { | CODE |
| LOW | src/renderer/store/player.store.ts | 2571 | function findIndexWithPreviousAlbum(queueItems: QueueSong[], currentIndex: number) { | CODE |
| LOW | src/main/index.ts | 129 | function attachUpdaterMilestoneLogs(updater: UpdaterInstance): void { | CODE |
| LOW | src/main/index.ts | 163 | async function checkAllChannelsAndGetBest(): Promise<{ | CODE |
| LOW | src/main/index.ts | 269 | function configureAutoUpdaterForChannel(channel: 'beta' | 'latest'): void { | CODE |
| LOW | src/main/index.ts | 285 | function createAlphaUpdaterInstance( | CODE |
| LOW | src/main/index.ts | 311 | function createGithubUpdaterInstance( | CODE |
| LOW | src/main/features/core/dlna/soap-client.ts | 42 | export async function becomeCoordinatorOfStandaloneGroup(device: DlnaDevice): Promise<void> { | CODE |
| LOW | src/main/features/core/dlna/index.ts | 88 | async function settleBeforeNextUriChange(): Promise<void> { | CODE |
| LOW | src/main/features/core/dlna/index.ts | 246 | function consolidateDiscoveredDevices( | CODE |
| LOW | src/main/features/core/dlna/index.ts | 363 | async function enrichDevicesWithTopology(devices: DlnaDevice[]): Promise<DlnaDevice[]> { | CODE |
| LOW | src/main/features/core/dlna/index.ts | 942 | async function renewTopologySubscription(device: DlnaDevice): Promise<void> { | CODE |
| LOW | src/main/features/core/dlna/index.ts | 974 | function scheduleTopologyVerification() { | CODE |
| LOW | src/main/features/core/dlna/index.ts | 1375 | async function startTopologySubscription(device: DlnaDevice): Promise<void> { | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 51 | // ─── Built-in EQ presets ────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 70 | // ─── Built-in compressor presets ───────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 83 | // ─── Storage helpers ────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 99 | // ─── Vertical EQ band slider ────────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 259 | // ─── Main component ─────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 286 | // ── MPV player ──────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 293 | // ── Web Audio player ────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 339 | // ── EQ handlers ────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 393 | // ── Compressor handlers ─────────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 445 | // ── Preset select data ──────────────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 482 | // ── EQ SettingsSection options ──────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 636 | // ── Compressor param definitions ────────────────────────────────────────── | COMMENT |
| MEDIUM | …/features/settings/components/playback/eq-settings.tsx | 702 | // ── Compressor SettingsSection options ──────────────────────────────────── | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …er/features/folders/components/folder-list-content.tsx | 161 | // gap={grid.itemGap} | COMMENT |
| LOW | …er/features/albums/components/album-detail-content.tsx | 301 | }; | COMMENT |
| LOW | …er/features/albums/components/album-detail-content.tsx | 321 | // <PillLink | COMMENT |
| LOW | …/renderer/features/remote/hooks/use-remote-library.tsx | 41 | const DEFAULT_PAGE_SIZE = 30; | COMMENT |
| LOW | …omponents/feature-carousel/single-feature-carousel.tsx | 201 | // useEffect(() => { | COMMENT |
| LOW | src/renderer/layouts/default-layout/right-sidebar.tsx | 21 | // top: '75px', | COMMENT |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 101 | COMMENT | |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 121 | // { | COMMENT |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 141 | // const TRANSCODE_UNSUPPORTED_DIRECT_PLAY_PROFILES = [ | COMMENT |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 161 | // containers: ["wav"], | COMMENT |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 181 | // protocols: ["http"], | COMMENT |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 201 | // }, | COMMENT |
| LOW | src/renderer/api/subsonic/subsonic-controller.ts | 221 | // containers: ["eac3"], | COMMENT |
| LOW | src/renderer/themes/mantine-theme.tsx | 1 | import type { MantineColorsTuple, MantineThemeOverride } from '@mantine/core'; | COMMENT |
| LOW | src/shared/api/jellyfin/jellyfin-normalize.ts | 441 | // image: getCoverArtUrl(item), | COMMENT |
| LOW | src/main/features/core/player/index.ts | 21 | // }, timeout); | COMMENT |
| LOW | src/main/features/core/remote/index.ts | 421 | break; | COMMENT |
| LOW | src/remote/app.tsx | 41 | // forceColorScheme, not defaultColorScheme — the latter is only | COMMENT |
| LOW | src/remote/service-worker.ts | 41 | return Promise.resolve(); | COMMENT |
| LOW | src/remote/components/thumbnail.tsx | 21 | // scrolling fast through a long list fires (and lets finish) one request | COMMENT |
| LOW | src/remote/store/index.ts | 21 | sendAcked: (data: AckableClientEvent) => Promise<void>; | COMMENT |
| LOW | src/remote/store/index.ts | 61 | }; | COMMENT |
| LOW | src/remote/store/index.ts | 141 | // throws "SyntaxError: An invalid or illegal string was | COMMENT |
| LOW | src/remote/store/index.ts | 501 | // `socket` too: JSON.stringify reduces a live WebSocket to | COMMENT |
| LOW | src/remote/store/library.ts | 21 | // Returns the acked-send promise so the confirm sheet can show its own | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | .github/workflows/publish-beta.yml | 210 | # Check if release exists | COMMENT |
| LOW | .github/workflows/publish-beta.yml | 235 | # Check if commits exist | COMMENT |