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 fanfan-de/anybox --skill heygen-translategit clone --depth 1 https://github.com/fanfan-de/anyboxWrote 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/fanfan-de/anybox/heygen-translate)<a href="https://agentmods.dev/skills/fanfan-de/anybox/heygen-translate"><img src="https://agentmods.dev/badge/skills/fanfan-de/anybox/heygen-translate/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/fanfan-de/anybox/heygen-translate"><img src="https://agentmods.dev/badge/skills/fanfan-de/anybox/heygen-translate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00345 | $0.07063 |
| Opus 5 | $0.00172 | $0.03531 |
| Sonnet 5 | $0.00069 | $0.01413 |
| Haiku 4.5 | $0.00034 | $0.00706 |
Grade C, and why
heygen-translate scanned grade C with 2 findings 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 9d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
5. **Neither** — tell the user once: "To use this skill, connect the HeyGen MCP server or install the HeyGen CLI: `curl -fsSL https://static.heygen.ai/cli/install.sh | bash` then `heygen auth login`." Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
5. **Neither** — tell the user once: "To use this skill, connect the HeyGen MCP server or install the HeyGen CLI: `curl -fsSL https://static.heygen.ai/cli/install.sh | bash` then `heygen auth login`." This is a copy
100% identical to heygen-translate — 28 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 435 lines — stays where its author put it; the contents beside it link to each section on GitHub.
HeyGen Video Translation
Translate and dub an existing video into 175+ languages. The system clones the presenter's voice into the target language, re-syncs their lips to the new audio, and returns a fully dubbed video. You provide a source video and a target language — the engine handles transcription, translation, voice cloning, lip-sync, and (optionally) burned-in captions.
This is not new-video generation. The presenter, performance, framing, and brand assets in the original video are preserved. Translation rides on top of what's already there.
User-Facing Behavior
- Be concise. Don't dump translation IDs, raw API payloads, or status JSON in chat. Report the result (video link, language) not the plumbing.
- No internal jargon. Don't say "polling", "video_translation_id", "asset_id", "v3 endpoint". Say "translating", "almost done", "your file".
- Polling is silent. Background long-running translations and only speak on (a) result delivered, (b) >5 min stall (one update), (c) hard failure.
- One result, one message. When the video is done, send the link plus a one-line summary (target language, duration, mode). Not every API field.
- Don't narrate transport choice. MCP vs CLI vs OpenClaw plugin is internal. Pick silently at session start; never mention which is in use.
- Communicate in the user's language. Detect from their first message. Replies, confirmations, and questions in their language. Technical CLI/API directives stay in English.
API Mode Detection
Pick one transport at session start. Never mix, never switch mid-session, never narrate the choice.
Detect in this order:
- OpenClaw plugin mode — If running inside OpenClaw and the
video_generatetool exposes a HeyGen translation model, prefer that. Currently the plugin generates videos but does not expose translation directly — fall through to the next tier until HeyGen ships translation throughvideo_generate. - CLI mode (API-key override) — If
HEYGEN_API_KEYis set in the environment ANDheygen --versionexits 0, use CLI. API-key presence is an explicit signal that the user wants direct API access. - MCP mode — No
HEYGEN_API_KEYAND HeyGen MCP tools are visible (mcp__heygen__*). OAuth auth, runs against the user's plan credits. - CLI mode (fallback) — MCP tools not available AND
heygen --versionexits 0. Auth viaheygen auth login. - Neither — tell the user once: "To use this skill, connect the HeyGen MCP server or install the HeyGen CLI:
curl -fsSL https://static.heygen.ai/cli/install.sh | bashthenheygen auth login."
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 435 lines · 345 tokens per session scan C 65be7a8d9ca5
heygen-translate is a skill published in the GitHub repository fanfan-de/anybox (57 stars, last pushed 1mo ago), licensed MIT. It adds 345 tokens to every session and 7,063 once invoked, about $0.0017 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). It is 100% identical to heygen-translate, differing in 28 lines, and is treated as a copy.
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