A free, open source, and extensible speech-to-text application that works completely offline.
This report presents the forensic synthetic code analysis of cjpais/Handy, a Rust project with 26,468 GitHub stars. SynthScan v2.0 examined 56,737 lines of code across 261 source files, recording 188 pattern matches distributed across 8 syntactic categories. The overall adjusted score of 3.8 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 188 distinct pattern matches across 8 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 |
|---|---|---|---|---|
| LOW | src/i18n/locales/pl/translation.json | 224 | "placeholder": "Wybierz mikrofon...", | CODE |
| LOW | src/i18n/locales/pl/translation.json | 234 | "placeholder": "Wybierz urządzenie wyjściowe...", | CODE |
| LOW | src/i18n/locales/pl/translation.json | 362 | "placeholder": "Dodaj słowo", | CODE |
| LOW | src/i18n/locales/pl/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/pl/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/pl/translation.json | 487 | "placeholder": "Wybierz okres retencji..." | CODE |
| LOW | src/i18n/locales/vi/translation.json | 224 | "placeholder": "Chọn micrô...", | CODE |
| LOW | src/i18n/locales/vi/translation.json | 234 | "placeholder": "Chọn thiết bị đầu ra...", | CODE |
| LOW | src/i18n/locales/vi/translation.json | 362 | "placeholder": "Thêm một từ", | CODE |
| LOW | src/i18n/locales/vi/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/vi/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/vi/translation.json | 487 | "placeholder": "Chọn thời gian lưu giữ..." | CODE |
| LOW | src/i18n/locales/sv/translation.json | 224 | "placeholder": "Välj mikrofon...", | CODE |
| LOW | src/i18n/locales/sv/translation.json | 234 | "placeholder": "Välj utmatningsenhet...", | CODE |
| LOW | src/i18n/locales/sv/translation.json | 362 | "placeholder": "Lägg till ett ord", | CODE |
| LOW | src/i18n/locales/sv/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/sv/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/sv/translation.json | 487 | "placeholder": "Välj lagringsperiod..." | CODE |
| LOW | src/i18n/locales/he/translation.json | 224 | "placeholder": "בחר מיקרופון...", | CODE |
| LOW | src/i18n/locales/he/translation.json | 234 | "placeholder": "בחר התקן פלט...", | CODE |
| LOW | src/i18n/locales/he/translation.json | 362 | "placeholder": "הוסף מילה", | CODE |
| LOW | src/i18n/locales/he/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/he/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/he/translation.json | 487 | "placeholder": "בחר משך שמירה..." | CODE |
| LOW | src/i18n/locales/ja/translation.json | 224 | "placeholder": "マイクを選択…", | CODE |
| LOW | src/i18n/locales/ja/translation.json | 234 | "placeholder": "出力デバイスを選択…", | CODE |
| LOW | src/i18n/locales/ja/translation.json | 362 | "placeholder": "単語を追加", | CODE |
| LOW | src/i18n/locales/ja/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/ja/translation.json | 393 | "placeholder": "sk-…" | CODE |
| LOW | src/i18n/locales/ja/translation.json | 487 | "placeholder": "保持期間を選択…" | CODE |
| LOW | src/i18n/locales/it/translation.json | 224 | "placeholder": "Scegli microfono...", | CODE |
| LOW | src/i18n/locales/it/translation.json | 234 | "placeholder": "Scegli dispositivo di output...", | CODE |
| LOW | src/i18n/locales/it/translation.json | 362 | "placeholder": "Aggiungi una parola", | CODE |
| LOW | src/i18n/locales/it/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/it/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/it/translation.json | 487 | "placeholder": "Seleziona periodo di conservazione..." | CODE |
| LOW | src/i18n/locales/cs/translation.json | 224 | "placeholder": "Vyberte mikrofon...", | CODE |
| LOW | src/i18n/locales/cs/translation.json | 234 | "placeholder": "Vyberte výstupní zařízení...", | CODE |
| LOW | src/i18n/locales/cs/translation.json | 362 | "placeholder": "Přidat slovo", | CODE |
| LOW | src/i18n/locales/cs/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/cs/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/cs/translation.json | 487 | "placeholder": "Vyberte dobu uchování..." | CODE |
| LOW | src/i18n/locales/ru/translation.json | 224 | "placeholder": "Выбрать микрофон...", | CODE |
| LOW | src/i18n/locales/ru/translation.json | 234 | "placeholder": "Выберите устройство вывода...", | CODE |
| LOW | src/i18n/locales/ru/translation.json | 362 | "placeholder": "Добавить слово", | CODE |
| LOW | src/i18n/locales/ru/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/ru/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/ru/translation.json | 487 | "placeholder": "Выберите срок хранения..." | CODE |
| LOW | src/i18n/locales/pt/translation.json | 224 | "placeholder": "Selecionar microfone...", | CODE |
| LOW | src/i18n/locales/pt/translation.json | 234 | "placeholder": "Selecionar dispositivo de saída...", | CODE |
| LOW | src/i18n/locales/pt/translation.json | 362 | "placeholder": "Adicionar uma palavra", | CODE |
| LOW | src/i18n/locales/pt/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/pt/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/pt/translation.json | 487 | "placeholder": "Selecionar período de retenção..." | CODE |
| LOW | src/i18n/locales/zh/translation.json | 224 | "placeholder": "选择麦克风...", | CODE |
| LOW | src/i18n/locales/zh/translation.json | 234 | "placeholder": "选择输出设备...", | CODE |
| LOW | src/i18n/locales/zh/translation.json | 362 | "placeholder": "添加词汇", | CODE |
| LOW | src/i18n/locales/zh/translation.json | 388 | "placeholder": "https://api.openai.com/v1" | CODE |
| LOW | src/i18n/locales/zh/translation.json | 393 | "placeholder": "sk-..." | CODE |
| LOW | src/i18n/locales/zh/translation.json | 487 | "placeholder": "选择保留期限..." | CODE |
| 72 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | scripts/check-nix-deps.ts | 1 | // scripts/check-nix-deps.ts — Keep .nix/bun.nix in sync with bun.lock | COMMENT |
| LOW | scripts/ci/stage-transcribe-libs.sh | 1 | #!/usr/bin/env bash | COMMENT |
| LOW | .github/workflows/build.yml | 281 | # Two ARM-static CMake overrides, forwarded by src-tauri/build.rs to the | COMMENT |
| LOW | .github/workflows/build.yml | 421 | Write-Host "ORT_LIB_LOCATION=$ortLib" | COMMENT |
| LOW | src-tauri/Cargo.toml | 101 | # executes BMI2/AVX in a static initializer and crashes at process startup on any | COMMENT |
| LOW | src-tauri/build.rs | 1 | fn main() { | COMMENT |
| LOW | src-tauri/build.rs | 21 | // dynamic-backends posture used by Linux and Windows; it's a no-op for the | COMMENT |
| LOW | src-tauri/build.rs | 141 | std::fs::copy(&src, dest_dir.join("onnxruntime.dll")) | COMMENT |
| LOW | src-tauri/build.rs | 361 | .trim() | COMMENT |
| LOW | src-tauri/build.rs | 501 | } | COMMENT |
| LOW | src-tauri/src/transcription_coordinator.rs | 341 | COMMENT | |
| LOW | src-tauri/src/transcription_coordinator.rs | 361 | // The unit tests above assert `classify_ptt_event` in isolation. The | COMMENT |
| LOW | src-tauri/src/overlay.rs | 501 | return; | COMMENT |
| LOW | src-tauri/src/settings.rs | 341 | /// Internal settings schema marker for one-time migrations. Fresh installs | COMMENT |
| LOW | src-tauri/src/settings.rs | 361 | pub autostart_enabled: bool, | COMMENT |
| LOW | src-tauri/src/cli.rs | 41 | /// Hard-select the compute device for --transcribe-file by its registry | COMMENT |
| LOW | src-tauri/src/tray_i18n.rs | 1 | //! Tray menu internationalization | COMMENT |
| LOW | src-tauri/src/shortcut/handy_keys.rs | 1 | //! Handy-keys based keyboard shortcut implementation | COMMENT |
| LOW | src-tauri/src/audio_toolkit/text.rs | 121 | /// | COMMENT |
| LOW | src-tauri/src/audio_toolkit/text.rs | 301 | result.join(" ") | COMMENT |
| LOW | src-tauri/src/catalog/mod.rs | 1 | //! The bundled, offline model catalog. | COMMENT |
| LOW | src-tauri/src/managers/model_capabilities.rs | 1 | //! Model capability probing — the seam between Handy's model UI and "what can | COMMENT |
| LOW | src-tauri/src/managers/model_capabilities.rs | 81 | #[default] | COMMENT |
| LOW | src-tauri/src/managers/transcription.rs | 81 | #[serde(skip_serializing_if = "Option::is_none")] | COMMENT |
| LOW | src-tauri/src/managers/transcription.rs | 241 | /// Tauri state and the manager lock. | COMMENT |
| LOW | src-tauri/src/managers/transcription.rs | 1161 | } | COMMENT |
| LOW | src-tauri/src/managers/transcription.rs | 1621 | &settings.app_language, | COMMENT |
| LOW | src-tauri/src/managers/gguf_meta.rs | 1 | //! Minimal, dependency-free GGUF metadata reader. | COMMENT |
| LOW | src-tauri/src/managers/model.rs | 1141 | /// models dropped in or downloaded outside Handy show up without a restart. | COMMENT |
| LOW | src/lib/constants/languages.ts | 121 | (language) => | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | scripts/gen_catalog.py | 23 | # ───────────────────────── scoring (one constant each) ────────────────────── | COMMENT |
| MEDIUM | scripts/gen_catalog.py | 32 | # ───────────────────────── curation (CJ owns; editorial, not derivable) ────── | COMMENT |
| MEDIUM | scripts/gen_catalog.py | 59 | # ───────────────────────── helpers ────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | src-tauri/src/shortcut/handy_keys.rs | 11 | //! ┌─────────────────┐ commands ┌──────────────────────┐ | COMMENT |
| MEDIUM⚡ | src-tauri/src/shortcut/handy_keys.rs | 12 | //! │ Main Thread │ ───────────────▶ │ Manager Thread │ | COMMENT |
| MEDIUM⚡ | src-tauri/src/shortcut/handy_keys.rs | 16 | //! └─────────────────┘ │ - dispatches actions │ | COMMENT |
| MEDIUM⚡ | src-tauri/src/shortcut/handy_keys.rs | 17 | //! └──────────────────────┘ | COMMENT |
| MEDIUM | src-tauri/src/managers/model.rs | 2560 | // ── SHA256 verification tests ───────────────────────────────────────────── | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | CONTRIBUTING_TRANSLATIONS.md | 30 | ### Step 1: Create the Language Folder | COMMENT |
| LOW | CONTRIBUTING_TRANSLATIONS.md | 47 | ### Step 2: Copy the English File | COMMENT |
| LOW | CONTRIBUTING_TRANSLATIONS.md | 53 | ### Step 3: Translate the Values | COMMENT |
| LOW | CONTRIBUTING_TRANSLATIONS.md | 73 | ### Step 4: Register Your Language | COMMENT |
| LOW | CONTRIBUTING_TRANSLATIONS.md | 90 | ### Step 5: Test Your Translation | COMMENT |
| LOW | CONTRIBUTING_TRANSLATIONS.md | 97 | ### Step 6: Submit a Pull Request | COMMENT |
| LOW | README.md | 315 | #### Step 1: Find Your App Data Directory | COMMENT |
| LOW | README.md | 329 | #### Step 2: Create Models Directory | COMMENT |
| LOW | README.md | 341 | #### Step 3: Download Model Files | COMMENT |
| LOW | README.md | 357 | #### Step 4: Install Models | COMMENT |
| LOW | README.md | 397 | #### Step 5: Verify Installation | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | scripts/gen_catalog.py | 117 | except Exception: | CODE |
| LOW | scripts/gen_catalog.py | 145 | except Exception: | CODE |
| LOW | scripts/gen_catalog.py | 236 | except Exception as e: | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | scripts/gen_catalog.py | 106 | CODE | |
| LOW | scripts/gen_catalog.py | 226 | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | scripts/check-nix-deps.ts | 83 | "[check-nix-deps] Don't forget to commit: .nix/bun.nix .nix/bun-lock-hash", | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | src/lib/utils/modelTranslation.ts | 22 | export function getTranslatedModelDescription( | CODE |