helios-core SKILL.md skillA
helios-core from bintzgavin/helios is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bintzgavin/helios/helios-core@git:20261009.c6b0c13Pins git:20261009.c6b0c13 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bintzgavin/helios
- Path
skills/core/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261009.c6b0c13, committed Oct 9, 2026
- Size
- 12,178 bytes
- Repository stars
- 122
- License
- Apache-2.0
Core API for Helios video engine. Use when creating compositions, managing timeline state, controlling playback, or subscribing to frame updates. Covers Helios class instantiation, signals, animation helpers, and DOM synchronization.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Helios Core API
The `Helios` class is the headless logic engine for video compositions. It manages timeline state, provides frame-accurate control, and drives animations.
## Quick Start
```typescript
import { Helios } from '@helios-project/core';
// Create instance
const helios = new Helios({
duration: 10, // seconds
fps: 30,
width: 1920,
height: 1080,
inputProps: { text: "Hello World" }
});
// Subscribe to state changes
const unsubscribe = helios.subscribe((state) => {
console.log(`Frame: ${state.currentFrame}, Props:`, state.inputProps);
});
// Control playback
helios.play();
```
## API Reference
### Constructor
```typescript
new Helios(options: HeliosOptions)
interface HeliosOptions {
duration: number; // Duration in seconds (must be >= 0)
fps: number; // Frames per second (must be > 0)
width?: number; // Canvas width (default: 1920)
height?: number; // Canvas height (default: 1080)
initialFrame?: number; // Start frame (default: 0)
loop?: boolean; // Loop playback (default: false)
…Read the whole file at its exact version.
How to install
mdr add bintzgavin/helios/helios-core@sha256:4e068f69a2ff1be5The line at the top of this page pins the label git:20261009.c6b0c13, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_idizezwrxuxv6pq3)
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Versions
The registry has recorded 1 version of this file, committed on Oct 9, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12178 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
bintzgavin/helios · 122 stars · license Apache-2.0 · pushed 2026-10-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_idizezwrxuxv6pq3 GET https://markdownregistry.com/api/v1/resolve?ref=bintzgavin/helios/helios-core GET https://markdownregistry.com/api/v1/blob/4e068f69a2ff1be509c67b99cc9922684ba6aac1692486d91cf63442ea0d4487
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.