Borrowing it
Nothing to install: this file belongs to heygen-com/skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/heygen-com/skills/master/CLAUDE.mdgit clone --depth 1 https://github.com/heygen-com/skillsWrote 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/instructions/heygen-com/skills/claude-md)<a href="https://agentmods.dev/instructions/heygen-com/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/heygen-com/skills/claude-md/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/instructions/heygen-com/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/heygen-com/skills/claude-md.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 | $0.02095 | $0.02095 |
| Opus 5.5 | $0.00838 | $0.00838 |
| Sonnet 5.5 | $0.00419 | $0.00419 |
| Haiku 4.5 | $0.00210 | $0.00210 |
Grade C, and why
skills CLAUDE.md 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 1mo 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.
- Install: `curl -fsSL https://static.heygen.ai/cli/install.sh | bash` Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
Two modes, in order of preference: MCP, then CLI. **Do not call `api.heygen.com` directly with curl.** The skills route through MCP or the CLI — never raw HTTP. How it starts
The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — HeyGen Skills
What This Is
The HeyGen Skills. Three independent, self-contained skills:
- heygen-avatar — identity → avatar → voice. Output is reused by heygen-video.
- heygen-video — idea → script → video. Consumes avatars from heygen-avatar.
- heygen-translate — existing video → dubbed and lip-synced video in another language. Independent of the other two.
Each ships its own bundle of references so it installs cleanly via gh skill install, ClawHub, the OpenClaw plugin, or direct git clone.
Architecture
heygen-skills/
├── CLAUDE.md # This file. Structure, rules, conventions.
├── INSTALL.md # Installation instructions
├── INSTALL_FOR_AGENTS.md # Agent-driven install spec
├── README.md # Public-facing description
├── CONTRIBUTING.md # PR workflow
├── CHANGELOG.md
├── LICENSE
├── VERSION
├── .mcp.json + mcp.json # MCP server config (root-level, used by plugin manifests)
├── .claude-plugin/ # OpenClaw / Claude Code plugin manifest
├── .codex-plugin/ # Codex plugin manifest
├── .cursor-plugin/ # Cursor plugin manifest
├── heygen-avatar/ # Self-contained skill
│ ├── SKILL.md # Avatar creation workflow (identity → avatar → voice → AVATAR file)
│ └── references/ # On-demand docs, loaded per phase
│ ├── asset-routing.md
│ ├── avatar-creation.md
│ └── troubleshooting.md
├── heygen-video/ # Self-contained skill
│ ├── SKILL.md # Video production workflow (7-stage pipeline)
│ ├── references/ # On-demand docs, loaded per phase
│ │ ├── asset-routing.md
│ │ ├── avatar-discovery.md
│ │ ├── frame-check.md
│ │ ├── motion-vocabulary.md
│ │ ├── official-prompt-guide.md
│ │ ├── prompt-craft.md
│ │ ├── prompt-styles.md
│ │ └── troubleshooting.md
│ └── scripts/
│ └── update-check.sh # Self-contained version-check shell script
├── heygen-translate/ # Self-contained skill
│ ├── SKILL.md # Translation / dubbing workflow (4-phase pipeline)
│ └── references/ # On-demand docs, loaded per phase
│ ├── asset-routing.md
│ ├── language-locale-guide.md
│ ├── proofreads-workflow.md
│ └── troubleshooting.md
├── platforms/ # Platform-specific skill variants (e.g. nanoclaw)
├── assets/ # Logos, plugin assets
└── evals/ # Dev-only test infrastructure (not shipped to users)
├── eval-runner-prompt.md
├── autoresearch-loop.md
└── round-N-scenarios.md
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.
- 1mo ago First seen · 164 lines · 2,095 tokens per session scan C a0231808ac07
skills CLAUDE.md is an instructions file published in the GitHub repository heygen-com/skills (524 stars, last pushed 3mo ago), licensed MIT. It adds 2,095 tokens to every session, about $0.0084 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.