HyperFrames is an open-source framework that turns HTML, CSS, media, and timed animations into deterministic MP4 videos. It is used locally, by coding agents, and in hosted authoring workflows to create rendered videos from web-based designs. Its catalogue add-ons provide skills, agents, instructions, hooks, settings, and a plugin for agent-driven video production.
Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/heygen-com/hyperframesnpx agentmods add skills/heygen-com/hyperframes/pr-to-videoWrote 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/heygen-com/hyperframes/pr-to-video)<a href="https://agentmods.dev/skills/heygen-com/hyperframes/pr-to-video"><img src="https://agentmods.dev/badge/skills/heygen-com/hyperframes/pr-to-video/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/heygen-com/hyperframes/pr-to-video"><img src="https://agentmods.dev/badge/skills/heygen-com/hyperframes/pr-to-video.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 20 findings, up to medium
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 →
- medium MCP Rug Pull · line 6 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 45 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 51 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 176 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 214 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 216 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 218 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 228 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 232 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 236 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 248 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium Rogue Agent · line 114 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Prompt Injection · line 252 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 252 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 256 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 267 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 261 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 262 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 263 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 264 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
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 | $0.00104 | $0.07674 |
| Opus 5.5 | $0.00042 | $0.03070 |
| Sonnet 5.5 | $0.00021 | $0.01535 |
| Haiku 4.5 | $0.00010 | $0.00767 |
Grade A, and why
pr-to-video 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 yesterday.
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- pr-to-video — 92% identical, 78 lines differ
How it starts
The opening of the file, as written. The whole thing — 274 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Plugin installs: Before setup or freshness commands, follow plugin execution rules when this skill is inside a HyperFrames plugin. Standalone installs keep the update instructions below.
First, keep this skill fresh — confirm with the user before running:
npx hyperframes skills update pr-to-video. A fast no-op when everything is current; otherwise it refreshes this skill plus the core domain skills it depends on before you rely on them.
media-use: Before sourcing audio/images/logos, call
/media-useto resolve BGM/SFX/images from the HeyGen catalog and brand logos from their official sources. Run--adoptfirst to register existing assets. See/media-useskill. When the host app provides its own music or sound-effect tools, use those for music and sound effects.
PR to HyperFrames
Use this skill to ingest a GitHub pull request, understand the change, plan a code-change explainer, and build it frame by frame in HyperFrames. The input is a code change (read via gh), not a website — there is no capture step and no real assets beyond the contributors' avatars.
The front door is
/hyperframes. You are the orchestrator. Run each step, verify its gate, and only then continue. This skill is for a GitHub pull request (a code change). Any other intent, a bare "make a video", or any uncertainty → read/hyperframesfirst — the intent layer owns every route decision, and a fresh creation arriving here withoutBRIEF.mdgoes through it anyway (Setup's opening rule).
You are the orchestrator. Work in the resolved external PROJECT_DIR, never in the caller repository by default. Run steps in order and pass each gate before continuing. User-gated steps are Step 0, Step 3, and Step 6. Read ../hyperframes/references/brief-contract.md before Step 0 — it defines the gate types and how BRIEF.md's flow/storyboard derive the mode that governs the Step 3/4/6 gates. Do every step yourself except Step 5, where you dispatch a bounded pool of frame workers. Do not put design or motion rules here; those live in the frame-worker sub-agent, this skill's local ../hyperframes-animation/rules/ + ../hyperframes-animation/blueprints/, and hyperframes-creative.
Workflow: Step 0 setup → hyperframes.json; Step 1 ingest → capture/extracted/ + assets/<login>.png; Step 2 design system → frame.md; Step 3 storyboard/script → STORYBOARD.md and SCRIPT.md; Step 3.1 audio → audio_meta.json; Step 4 visual design → enriched STORYBOARD.md; Step 5 frames → compositions/frames/NN-*.html and index.html; Step 6 final render → renders/video.mp4.
What ships with it
34 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.
- references/code-vocabulary.md 15 KB
- references/cut-catalog.md 12 KB
- references/motion-language.md 15 KB
- references/story-design.md 28 KB
- references/visual-design.md 20 KB
- scripts/assemble-index.mjs 26 KB runs code
- scripts/assemble-index.test.mjs 5.4 KB runs code
- scripts/audio.mjs 15 KB runs code
- scripts/build-frame.mjs 28 KB runs code
- scripts/captions.mjs 25 KB runs code
- scripts/captions.test.mjs 11 KB runs code
- scripts/fetch-people-avatars.mjs 6.0 KB runs code
- scripts/fetch-pr.mjs 9.0 KB runs code
- scripts/frame-contract.test.mjs 7.3 KB runs code
- scripts/frame-packets.mjs 2.4 KB runs code
- scripts/ingest.mjs 22 KB runs code
- scripts/lib/assets.mjs 2.2 KB runs code
- scripts/lib/bgm-volume.mjs 236 B runs code
- scripts/lib/captured-fonts.mjs 2.6 KB runs code
- scripts/lib/dimensions.mjs 2.2 KB runs code
- scripts/lib/frame-contract.mjs 2.4 KB runs code
- scripts/lib/frame-packets-core.mjs 6.8 KB runs code
- scripts/lib/host-audio.mjs 1.4 KB runs code
- scripts/lib/main-module.mjs 479 B runs code
- scripts/lib/pad-frame-duration.mjs 1.6 KB runs code
- scripts/lib/storyboard.mjs 8.1 KB runs code
- scripts/lib/tokens.mjs 9.7 KB runs code
- scripts/lib/transition-registry.mjs 1.6 KB runs code
- scripts/lib/transitions.json 3.8 KB
- scripts/preflight.mjs 1.2 KB runs code
- scripts/project-dir.mjs 2.2 KB runs code
- scripts/transitions.mjs 15 KB runs code
- scripts/workflow-guardrails.test.mjs 8.1 KB runs code
- sub-agents/frame-worker.md 6.8 KB
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.
- yesterday Changed 17bb52422425
- 2d ago Changed 998a72af1d73
- 8d ago Changed f9ecb92efad4
- 11d ago Changed c195a2fc8029
- 18d ago Changed · +2 lines e6d814eaf6bd
- 26d ago Changed 7aca59283aa8
- 1mo ago Changed a0bca6741123
- 1mo ago Changed · +2 lines d5661b3dc501
- 1mo ago First seen · 270 lines · 104 tokens per session scan A f0f79a1d4b7a
pr-to-video is a skill published in the GitHub repository heygen-com/hyperframes (64,542 stars, last pushed today), licensed Apache-2.0. It adds 104 tokens to every session and 7,674 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-30.
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