video_motion: Skill for Claude Code

.agents/skills/hyperframes-core/SKILL.md

hyperframes-core is a skill for Claude Code, Codex from maiscafe/video_motion. It costs 61 tokens per session (1,585 once invoked), scanned A, a copy of hyperframes-core, MIT.

A technical contract for building HyperFrames projects, where HTML describes a video composition and its timing. It defines the required structure for clips, tracks, nested compositions, variables, media playback, and predictable rendering.

In plain words
What is it for?
Use it before writing composition HTML for HyperFrames, especially when arranging timed clips, overlapping tracks, nested compositions, variables, or framework-managed video and audio.
Why use it?
It gives the agent the rules needed to create HTML that HyperFrames can render and seek through correctly. Without those rules, timing and media behavior may not work as expected.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents; installed under .agents/ (shared by several agents).

This is maiscafe/video_motion's own configuration. It tells Claude Code and Codex how to work on video_motion itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything video_motion configures →

Reuse

Borrowing it

Nothing to install: this file belongs to maiscafe/video_motion. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/maiscafe/video_motion/master/.agents/skills/hyperframes-core/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/maiscafe/video_motion

Made for: Claude Code, Codex.

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 hyperframes-core

README.md
[![agentmods](https://agentmods.dev/badge/skills/maiscafe/video_motion/hyperframes-core/github.svg)](https://agentmods.dev/skills/maiscafe/video_motion/hyperframes-core)
Your own site
<a href="https://agentmods.dev/skills/maiscafe/video_motion/hyperframes-core"><img src="https://agentmods.dev/badge/skills/maiscafe/video_motion/hyperframes-core/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 hyperframes-core

Your own site · 80×15
<a href="https://agentmods.dev/skills/maiscafe/video_motion/hyperframes-core"><img src="https://agentmods.dev/badge/skills/maiscafe/video_motion/hyperframes-core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,585 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 92% copy Near-identical to another mod 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 $0.00061 $0.01585
Opus 5.5 $0.00024 $0.00634
Sonnet 5.5 $0.00012 $0.00317
Haiku 4.5 $0.00006 $0.00159

Measured 1mo ago against content hash 689de1f94e68, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hyperframes-core 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 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.

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.

Origin

This is a copy

92% identical to hyperframes-core — 163 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/hyperframes-core/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HyperFrames Core

HyperFrames renders video from HTML. A composition is an HTML file whose DOM declares timing with data-* attributes, whose animation runtime is seekable, and whose media playback is owned by the framework.

This skill is the technical contract — how to build one hyperframes project. The body below is the build guide; per-topic detail lives in references/ (index next), read on demand. Other concerns live in the sibling domain skills — hyperframes-animation, hyperframes-creative, hyperframes-media, hyperframes-cli, hyperframes-registry. The capability map in /hyperframes says what each one covers.

References

File Read it to…
references/minimal-composition.md start from the smallest renderable composition skeleton
references/composition-patterns.md choose monolithic vs modular; structure a modular index.html; pick a sub-comp archetype
references/data-attributes.md look up any data-* (root / clip / sub-comp host / legacy aliases); use class="clip"
references/tracks-and-clips.md pick data-track-index, handle same-track overlap / z-index, time a clip relative to another
references/sub-compositions.md wire a sub-composition (host attrs, <template>, per-instance vars) and animate inside it
references/variables-and-media.md declare variables; place <video>/<audio>, set volume, trim
references/determinism-rules.md build a seekable timeline; determinism bans; the animatable-property allowlist; layout / text fit
references/full-screen-motion.md author full-frame motion with shared backgrounds
references/storyboard-format.md author a STORYBOARD.md plan (+ the parsed manifest)
references/script-format.md author the optional SCRIPT.md locked narration
references/subagent-dispatch.md map subagent dispatch verbs (parallel fan-out / background / wait) to your harness
references/tailwind.md work in a Tailwind v4 project (init --tailwind; runtime contract differs from Studio's v3)

Read the full file on GitHub · 79 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. 1mo ago First seen · 79 lines · 61 tokens per session scan A 689de1f94e68

Subscribe to this mod's changes

hyperframes-core is a skill published in the GitHub repository maiscafe/video_motion (2 stars, last pushed 3mo ago), licensed MIT. It adds 61 tokens to every session and 1,585 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 92% identical to hyperframes-core, differing in 163 lines, and is treated as a copy.

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