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This report presents the forensic synthetic code analysis of siddharthvaddem/openscreen, a TypeScript project with 39,344 GitHub stars. SynthScan v2.0 examined 73,231 lines of code across 345 source files, recording 184 pattern matches distributed across 4 syntactic categories. The overall adjusted score of 4.5 places this repository in the Likely human-written band.
The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).
This chart maps the temporal evolution of the adjusted synthetic code score across successive scan runs. An upward trajectory indicates ongoing incorporation of AI-generated code or expanding LLM-assisted scaffolding; a stable or declining trajectory may reflect active human refactoring, code removal, or the adoption of stricter authorship policies. The dashed secondary line (right axis) independently tracks total raw pattern hit count, which can diverge from the normalised score when codebase size changes significantly between scans.
Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.
This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.
The scanner identified 184 distinct pattern matches across 4 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. 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 diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | scripts/build_macos.sh | 11 | # ── Load .env ───────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | scripts/build_macos.sh | 25 | # ── Config ──────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | scripts/build_macos.sh | 31 | # ── Colors ──────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | scripts/build_macos.sh | 44 | # ── Preflight ───────────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 92 | # ── Clean ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 99 | # ── Install Dependencies ───────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 104 | # ── Build Vite + Electron ──────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 109 | # ── Package, Sign, Notarize per Architecture ───────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 116 | # ── Package with electron-builder ───────────────────────────── | COMMENT |
| MEDIUM | scripts/build_macos.sh | 136 | # ── Verify codesign on .app ─────────────────────────────────── | COMMENT |
| MEDIUM | scripts/build_macos.sh | 141 | # ── Create DMG ──────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 167 | # ── Sign DMG ────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 172 | # ── Notarize DMG ────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 179 | # ── Staple ──────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 184 | # ── Validate ────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 191 | # ── Clean up unpacked dirs (keep only DMGs) ─────────────────────────── | COMMENT |
| MEDIUM⚡ | scripts/build_macos.sh | 196 | # ── Done ────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 59 | # ─── Checkout ───────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 63 | # ─── Setup Node.js ──────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 70 | # ─── Setup Python (needed by some native deps) ──────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 76 | # ─── Install Dependencies ───────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 80 | # ─── Ensure sharp prebuilt binary (+ bundled libvips) ───── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 89 | # ─── Cache caption assets ───────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 97 | # ─── Import Code Signing Certificate ────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 150 | # ─── Package with electron-builder ──────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 160 | # ─── Read version from package.json ─────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 165 | # ─── Locate the .app bundle ─────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 233 | # ─── Staple ─────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 237 | # ─── Validate ───────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 243 | # ─── Upload Artifact ────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | .github/workflows/build.yml | 251 | # ─── Cleanup Keychain ───────────────────────────────────── | COMMENT |
| MEDIUM | .github/workflows/build.yml | 135 | # ─── Build Vite + Electron ──────────────────────────────── | COMMENT |
| MEDIUM | .github/workflows/build.yml | 139 | # ─── Build native macOS helpers ─────────────────────────── | COMMENT |
| MEDIUM | .github/workflows/build.yml | 181 | # ─── Verify .app signature ──────────────────────────────── | COMMENT |
| MEDIUM | .github/workflows/build.yml | 185 | # ─── Create DMG ─────────────────────────────────────────── | COMMENT |
| MEDIUM | .github/workflows/build.yml | 213 | # ─── Sign DMG ───────────────────────────────────────────── | COMMENT |
| MEDIUM | .github/workflows/build.yml | 221 | # ─── Notarize DMG ──────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 18 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 20 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 36 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 38 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 87 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 89 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 105 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 107 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 139 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 141 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 176 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 184 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 312 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 314 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 409 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | electron/native/wgc-capture/src/cursor-sampler.cpp | 411 | // ───────────────────────────────────────────────────────────────────────────── | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | electron/main.ts | 367 | function createEditorWindowWrapper() { | CODE |
| LOW | electron/main.ts | 410 | function createSourceSelectorWindowWrapper() { | CODE |
| LOW | electron/main.ts | 418 | function createCountdownOverlayWindowWrapper() { | CODE |
| LOW | electron/windows.ts | 231 | export function createSourceSelectorWindow(): BrowserWindow { | CODE |
| LOW | electron/windows.ts | 275 | export function createCountdownOverlayWindow(): BrowserWindow { | CODE |
| LOW | electron/globalShortcut.ts | 64 | export async function loadAndRegisterGlobalShortcut(onTrigger: () => void): Promise<void> { | CODE |
| LOW | electron/globalShortcut.ts | 75 | export function unregisterAllGlobalShortcuts(): void { | CODE |
| LOW | electron/native-bridge/cursor/recording/factory.ts | 16 | export function createCursorRecordingSession( | CODE |
| LOW | …ge/cursor/recording/macNativeCursorRecordingSession.ts | 82 | export async function requestMacCursorAccessibilityAccess() { | CODE |
| LOW | …idge/cursor/recording/windowsNativeRecordingSession.ts | 18 | function getCursorSamplerCandidates(): string[] { | CODE |
| LOW | electron/ipc/recordingStream.ts | 95 | export function registerRecordingStreamHandlers( | CODE |
| LOW⚡ | electron/ipc/handlers.ts | 1032 | function tryParseNativeHelperEvent(line: string) { | CODE |
| LOW⚡ | electron/ipc/handlers.ts | 1041 | function inspectNativeMacCaptureOutput() { | CODE |
| LOW⚡ | electron/ipc/handlers.ts | 1050 | function attachNativeMacCaptureOutputDrain(proc: ChildProcessWithoutNullStreams) { | CODE |
| LOW⚡ | electron/ipc/handlers.ts | 1183 | function setCurrentRecordingSessionState(session: RecordingSession | null) { | CODE |
| LOW⚡ | electron/ipc/handlers.ts | 1188 | function getSessionManifestPathForVideo(videoPath: string) { | CODE |
| LOW⚡ | electron/ipc/handlers.ts | 1196 | async function loadRecordedSessionForVideoPath( | CODE |
| LOW | electron/ipc/handlers.ts | 113 | function hasAllowedImportVideoExtension(filePath: string): boolean { | CODE |
| LOW | electron/ipc/handlers.ts | 136 | function parseAfinfoAudioTrackBitrates(output: string): number[] { | CODE |
| LOW | electron/ipc/handlers.ts | 146 | async function prepareSupplementalPreviewAudioTrack(videoPath: string) { | CODE |
| LOW | electron/ipc/handlers.ts | 253 | function resolveRecordingOutputPath(fileName: string): string { | CODE |
| LOW | electron/ipc/handlers.ts | 295 | async function getApprovedProjectSession( | CODE |
| LOW | electron/ipc/handlers.ts | 605 | function resolvePackagedResourcePath(...segments: string[]) { | CODE |
| LOW | electron/ipc/handlers.ts | 613 | function getNativeWindowsCaptureHelperCandidates() { | CODE |
| LOW | electron/ipc/handlers.ts | 632 | async function findNativeWindowsCaptureHelperPath() { | CODE |
| LOW | electron/ipc/handlers.ts | 649 | function getNativeMacCaptureHelperCandidates() { | CODE |
| LOW | electron/ipc/handlers.ts | 661 | async function findNativeMacCaptureHelperPath() { | CODE |
| LOW | electron/ipc/handlers.ts | 678 | function isWindowsGraphicsCaptureOsSupported() { | CODE |
| LOW | electron/ipc/handlers.ts | 687 | function normalizeNativeDeviceName(value: string) { | CODE |
| LOW | electron/ipc/handlers.ts | 721 | function queryDirectShowVideoInputRegistry() { | CODE |
| LOW | electron/ipc/handlers.ts | 739 | async function resolveDirectShowWebcamClsid(deviceName?: string) { | CODE |
| LOW | electron/ipc/handlers.ts | 824 | async function writePendingCursorTelemetry(videoPath: string) { | CODE |
| LOW | electron/ipc/handlers.ts | 832 | function shiftPendingCursorTelemetry(offsetMs: number) { | CODE |
| LOW | electron/ipc/handlers.ts | 848 | function compactPendingCursorTelemetryPauseRanges( | CODE |
| LOW | electron/ipc/handlers.ts | 892 | function completeNativeMacCursorPauseRange(endMs = Date.now()) { | CODE |
| LOW | electron/ipc/handlers.ts | 904 | function completeNativeWindowsCursorPauseRange(endMs = Date.now()) { | CODE |
| LOW | electron/ipc/handlers.ts | 916 | function waitForNativeWindowsCaptureStart(proc: ChildProcessWithoutNullStreams) { | CODE |
| LOW | electron/ipc/handlers.ts | 958 | function waitForNativeWindowsCaptureStop(proc: ChildProcessWithoutNullStreams) { | CODE |
| LOW | electron/ipc/handlers.ts | 1013 | function readNativeWindowsWebcamFormat(output: string) { | CODE |
| LOW | electron/ipc/handlers.ts | 1078 | function waitForNativeMacCaptureStart(proc: ChildProcessWithoutNullStreams) { | CODE |
| LOW | electron/ipc/handlers.ts | 1125 | function waitForNativeMacCaptureStop(proc: ChildProcessWithoutNullStreams) { | CODE |
| LOW | electron/ipc/handlers.ts | 2216 | async function storeRecordedSessionFiles(payload: StoreRecordedSessionInput) { | CODE |
| LOW | electron/ipc/handlers.ts | 2820 | function getCurrentVideoPathResult(): ProjectPathResult { | CODE |
| LOW | electron/ipc/nativeBridge.ts | 92 | export function registerNativeBridgeHandlers(context: NativeBridgeContext) { | CODE |
| LOW | src/utils/aspectRatioUtils.ts | 45 | export function getNativeAspectRatioValue( | CODE |
| LOW | src/components/launch/openSourceSelectorFlow.ts | 24 | function shouldRetryAfterPermissionPrompt(result: OpenSourceSelectorResult): boolean { | CODE |
| LOW | src/components/launch/openSourceSelectorFlow.ts | 32 | export async function openSourceSelectorWithPermissionRetry({ | CODE |
| LOW | src/components/video-editor/VideoPlayback.tsx | 207 | function enableAllPreviewAudioTracks(video: HTMLVideoElement) { | CODE |
| LOW | src/components/video-editor/VideoEditor.tsx | 141 | function getFileNameForDiagnostics(filePath?: string | null) { | CODE |
| LOW | src/components/video-editor/VideoEditor.tsx | 156 | function buildExportDiagnosticMessage(diagnostics: ExportDiagnostics) { | CODE |
| LOW | src/components/video-editor/VideoEditor.tsx | 173 | function buildSaveDiagnosticMessage(formatLabel: "GIF" | "Video", reason?: string) { | CODE |
| LOW | src/components/video-editor/backgroundImageUpload.ts | 6 | export function isSupportedBackgroundImageType(type: string, fileName: string): boolean { | CODE |
| LOW | src/components/video-editor/customPlaybackSpeed.ts | 14 | export function parseCustomPlaybackSpeedInput(rawValue: string): CustomPlaybackSpeedInputResult { | CODE |
| LOW | src/components/video-editor/projectPersistence.ts | 108 | function computeNormalizedWebcamLayoutPreset( | CODE |
| LOW | …omponents/video-editor/videoPlayback/cursorRenderer.ts | 274 | export function interpolateCursorPosition( | CODE |
| LOW | …omponents/video-editor/videoPlayback/cursorRenderer.ts | 328 | function findLatestInteractionSample(samples: CursorTelemetryPoint[], timeMs: number) { | CODE |
| LOW | …omponents/video-editor/videoPlayback/cursorRenderer.ts | 348 | function findLatestStableCursorType(samples: CursorTelemetryPoint[], timeMs: number) { | CODE |
| LOW | …onents/video-editor/videoPlayback/cursorFollowUtils.ts | 89 | export function timeCorrectedFollowFactor( | CODE |
| LOW | src/components/video-editor/videoPlayback/mathUtils.ts | 10 | function sampleCubicBezierDerivative(a1: number, a2: number, t: number) { | CODE |
| LOW | …mponents/video-editor/videoPlayback/zoomRegionUtils.ts | 201 | function getConnectedRegionTransition( | CODE |
| 63 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | electron/native/wgc-capture/src/cursor-sampler.cpp | 1 | #include <windows.h> | COMMENT |
| LOW | electron/native/wgc-capture/src/webcam_capture.h | 1 | #pragma once | COMMENT |
| LOW | …ctron/native/wgc-capture/src/wasapi_loopback_capture.h | 1 | #pragma once | COMMENT |
| LOW | …ectron/native/wgc-capture/src/dshow_webcam_capture.cpp | 1 | #include "dshow_webcam_capture.h" | COMMENT |
| LOW | electron/native/wgc-capture/src/main.cpp | 1 | #include "audio_sample_utils.h" | COMMENT |
| LOW | electron/native/wgc-capture/src/wgc_session.h | 1 | #pragma once | COMMENT |
| LOW | src/vite-env.d.ts | 1 | /// <reference types="vite/client" /> | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM⚡ | .github/workflows/build.yml | 106 | # Create a temporary keychain | COMMENT |