heygen

heygen is a skill for Claude Code from marcusquinn/aidevops. It costs 14 tokens per session (683 once invoked), scanned A, original, MIT.

Development guidance for using the HeyGen API, a service for creating videos with AI avatars and voices.

In plain words
What is it for?
Building integrations that generate avatar videos, select voices, upload media, add backgrounds or text, and track video jobs.
Why use it?
It helps developers handle authentication, video generation, assets, voices, avatars, captions, and status checks correctly.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents; installed under .agents/ (shared by several agents).

Part of the aidevops plugin — 13 skills, 128 commands shipped together

Good fit Building integrations that generate avatar videos, select voices, upload media, add backgrounds or text, and track video jobs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/marcusquinn/aidevops/heygen
Install

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.

Any agent
npx skills add marcusquinn/aidevops --skill heygen
Clone the repo
git clone --depth 1 https://github.com/marcusquinn/aidevops

Made for: Claude Code.

Or install aidevops, the plugin that ships this one along with the rest of its 13 skills, 128 commands.

Wrote 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.

agentmods badge for heygen

README.md
[![agentmods](https://agentmods.dev/badge/skills/marcusquinn/aidevops/heygen/github.svg)](https://agentmods.dev/skills/marcusquinn/aidevops/heygen)
Your own site
<a href="https://agentmods.dev/skills/marcusquinn/aidevops/heygen"><img src="https://agentmods.dev/badge/skills/marcusquinn/aidevops/heygen/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.

agentmods 80×15 button for heygen

Your own site · 80×15
<a href="https://agentmods.dev/skills/marcusquinn/aidevops/heygen"><img src="https://agentmods.dev/badge/skills/marcusquinn/aidevops/heygen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 683 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00014 $0.00683
Opus 5 $0.00007 $0.00342
Sonnet 5 $0.00003 $0.00137
Haiku 4.5 $0.00001 $0.00068

Measured 7d ago against content hash f724e8dec5aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

heygen scanned grade A with 0 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 7d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/content/heygen-skill.md · 38 lines

How it starts

The opening of the file, as written. The whole thing — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HeyGen Skill

Load when working with HeyGen API code — avatar videos, video generation workflows, service integration.

Rule Files

Rule Category Covers
rules-authentication.md Foundation API key setup, X-Api-Key header, auth patterns
rules-quota.md Foundation Credit system, usage limits, remaining quota
rules-video-status.md Foundation Polling patterns, status types, download URLs
rules-assets.md Foundation Uploading images, videos, audio for generation
rules-avatars.md Core Avatar listing, styles, avatar_id selection
rules-voices.md Core Voice listing, locales, speed/pitch config
rules-scripts.md Core Script writing, pauses/breaks, pacing, templates
rules-video-generation.md Core POST /v2/video/generate, multi-scene videos
rules-video-agent.md Core One-shot prompt generation via Video Agent API
rules-dimensions.md Core Resolution (720p/1080p), aspect ratios
rules-backgrounds.md Customization Solid colors, images, video backgrounds
rules-text-overlays.md Customization Text with fonts and positioning
rules-captions.md Customization Auto-generated captions, subtitle options
rules-templates.md Advanced Template listing, variable replacement
rules-video-translation.md Advanced Translation, quality/fast modes, dubbing
rules-streaming-avatars.md Advanced Real-time interactive avatar sessions
rules-photo-avatars.md Advanced Avatars from photos (talking photos)
rules-webhooks.md Advanced Webhook endpoints, event types
rules-remotion-integration.md Integration HeyGen avatar videos in Remotion compositions

Read the full file on GitHub · 38 lines

Changes

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.

  1. 7d ago First seen · 38 lines · 14 tokens per session scan A f724e8dec5aa

Subscribe to this mod's changes

heygen is a skill published in the GitHub repository marcusquinn/aidevops (394 stars, last pushed today), licensed MIT. It adds 14 tokens to every session and 683 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

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