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 BintzGavin/helios --skill studiogit clone --depth 1 https://github.com/BintzGavin/heliosWrote 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/bintzgavin/helios/studio)<a href="https://agentmods.dev/skills/bintzgavin/helios/studio"><img src="https://agentmods.dev/badge/skills/bintzgavin/helios/studio/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/bintzgavin/helios/studio"><img src="https://agentmods.dev/badge/skills/bintzgavin/helios/studio.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 | $0.00030 | $0.00859 |
| Opus 5.5 | $0.00012 | $0.00344 |
| Sonnet 5.5 | $0.00006 | $0.00172 |
| Haiku 4.5 | $0.00003 | $0.00086 |
Grade A, and why
helios-studio 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 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.
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.
How it starts
The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Helios Studio
The Helios Studio is a Vite-based development server and preview environment. It provides a hot-reloading environment for building compositions and acts as the "Editor" interface for Helios projects.
Quick Start
Run the studio from your project root:
npx @helios-project/cli studio
This will start a local server (typically at http://localhost:5173) where you can view and debug your composition.
Features
Playback & Preview
- Interactive Timeline: Scrub through your animation frame-by-frame.
- Hot Reloading: Preserves timeline state (current frame) when you edit code.
- Audio Controls: Volume slider and Mute toggle.
- Safe Area Guides: Toggle Action/Title Safe guides and Crosshair.
- Keyboard Shortcuts:
Space: Play/PauseArrow Left/Right: Step 1 frameShift + Arrow: Step 10 framesHome: Seek to startI/O: Set In / Out points (Playback Range)L: Toggle Loop
MCP Server
The Studio runs a Model Context Protocol (MCP) server, allowing AI agents to:
- Inspect composition schemas.
- Update input props.
- Trigger renders.
- Create new compositions.
Props Editor
The Props Editor generates a UI based on your HeliosSchema.
- Groups: Organize props into collapsible sections using the
groupschema property. - Schema-Aware Inputs:
number: Slider (if min/max set), Stepped Slider (if step set).color: Color picker.boolean: Toggle switch.string: Text input or Enum dropdown.image,video,audio,font: Asset selector with preview.model: 3D Model selector (.glb, .gltf).json: JSON file selector.shader: Shader file selector (.glsl).- Recursive Support: Generates nested UIs for
objectandarraytypes.
- Drag & Drop: Drag assets from the Assets Panel directly into compatible inputs.
- Metadata Editing: Click "Edit Composition" to change Width, Height, FPS, and Duration.
Assets Management
- Assets Panel: View and manage files in your
assets/directory. - Upload: Drag & drop files onto the panel to upload them.
- Previews: Rich previews for video (hover-play), audio, fonts, and images.
- Supported Types:
- Images: jpg, png, svg, webp
- Audio: mp3, wav, ogg
- Video: mp4, webm
- 3D: glb, gltf
- Data: json
- Shaders: glsl, vert, frag
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 Changed c67e3c8211f2
- 1mo ago First seen · 94 lines · 30 tokens per session scan A cfcee3741c0e
helios-studio is a skill published in the GitHub repository BintzGavin/helios (121 stars, last pushed today), licensed Apache-2.0. It adds 30 tokens to every session and 859 once invoked, about $0.0001 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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