Violin is an open-source video translation tool that transcribes speech, translates it, creates a voice-over in another language, and puts the translated audio back into the video, with optional subtitles. People use it through a CLI, web application, or Claude Code skill to produce dubbed videos and ask questions about their contents. The catalogue contains its video-translation skill.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add shang-zhu/violin --skill video-translatorgit clone --depth 1 https://github.com/shang-zhu/violinWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/shang-zhu/violin/video-translator)<a href="https://agentmods.dev/skills/shang-zhu/violin/video-translator"><img src="https://agentmods.dev/badge/skills/shang-zhu/violin/video-translator/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/shang-zhu/violin/video-translator"><img src="https://agentmods.dev/badge/skills/shang-zhu/violin/video-translator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Data Exfiltration · line 18 Code enumerates, copies, or searches environment variables for secrets. Bulk environment access can collect credentials unrelated to the skill's stated purpose.Fix: Read only explicitly required environment variables by name. Avoid enumerating or copying the full environment, and never log or transmit credentials to untrusted destinations.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.01074 |
| Opus 5 | $0.00000 | $0.00537 |
| Sonnet 5 | $0.00000 | $0.00215 |
| Haiku 4.5 | $0.00000 | $0.00107 |
Grade C, and why
video-translator scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 13d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Harvests environment variableshighData exfiltration
Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.
printenv TOGETHER_API_KEY # 3. Key available How it starts
The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Violin — operating skill
Always uses the default config (Together for translation, cartesia/sonic-3 for TTS). If the user asks for OpenAI, ElevenLabs, or custom configs, stop and point them to the Violin repo — those flows aren't supported through the global CLI.
Pre-flight
Run these silently first. Abort if any fails:
command -v violin # 1. CLI on PATH
test -f "<input>" # 2. Input exists
printenv TOGETHER_API_KEY # 3. Key available
If violin is missing: tell the user to uv tool install violin, then violin --install-skill to refresh this skill file. Do not auto-install.
If TOGETHER_API_KEY is missing:
- Inside the Violin repo → populate
.env(auto-loaded) - Elsewhere →
export TOGETHER_API_KEY=...in~/.zshrc/~/.bashrc, thensourceit
Decisions
- CLI vs API: single run-and-wait file → CLI (
violin). Multi-job / HTTP / web UI → API server (violin-api); print the command, don't auto-start it. - Style (
--style): defaultstandard. Kids content →kids, formal/lecture →academic, casual →casual, dramatic →storyteller, news →news. Runviolin --style listif unsure. - Voiceover: keep default (mix dubbed audio over a quiet original). Use
--no-voiceoveronly when the user explicitly says "replace audio entirely".
Run
violin <input> <output> --language <Lang> [flags]
Flags
| Flag | Default | When to set |
|---|---|---|
--language / -l |
required | Target language (e.g. Chinese, Spanish, Japanese). |
--voice / -v |
auto (native voice picked by preferences.voice_gender) |
Only when the user names a specific voice from the catalog (e.g. "warm female narrator"). Otherwise omit and let the default kick in. |
--source-language |
auto-detect |
Only if Whisper mis-detects the source language. |
--style / -s |
standard |
See Decisions above. |
--no-subtitles |
off | User says "no SRT" / "video only". |
--no-voiceover |
off | User says "replace original audio entirely". |
--config / -c |
config/default.yaml |
Don't use through this skill — repo-only flow. |
--timings-out |
off | Only when the user wants a per-step timing JSON for debugging / benchmarking. |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 13d ago First seen · 68 lines · 0 tokens per session scan C 8ddd683c9455
video-translator is a skill published in the GitHub repository shang-zhu/violin (1,058 stars, last pushed 8d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,074 tokens. A static security scan graded it C with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
srt
Extract subtitles (SRT) from video/audio/URLs and translate them into other languages (Perso AI STT).
dubbing
Auto-dub (voice-translate) videos into other languages, with lip-sync (Perso AI Dubbing).
chinese-documentation
A Chinese technical-documentation style guide covering spacing, punctuation, numbers, terminology, and links when Chinese and English appear together.
azure-ai-translation-text-py
Azure AI Text Translation SDK for real-time text translation, transliteration, language detection, and dictionary lookup. Use for translating text content in applications. Triggers: "text translation", "translator", "translate text", "transliterate", "TextTranslationClient".
harden
Improve interface resilience through better error handling, i18n support, text overflow handling, and edge case management. Makes interfaces robust and production-ready. Use when the user asks to harden, make production-ready, handle edge cases, add error states, or fix overflow and i18n issues.
seedance-vocab-ja
This skill should be used when the user asks for Japanese Seedance 2.0 prompt wording, Japanese cinematic vocabulary, or translation of camera, lighting, action, VFX, audio, and production terms into Japanese.