motion-prompt-language

motion-prompt-language is a skill for Claude Code, Codex from isaacsight/kernel. It costs 90 tokens per session (1,126 once invoked), scanned A, original, MIT.

A structured language for writing prompts for AI video generators such as Higgsfield and Runway. It breaks a motion idea into layers including visuals, camera movement, animation, typography, lighting, texture, and timing.

In plain words
What is it for?
Use it to write or refine prompts for editorial motion graphics, title sequences, magazine films, and explainer footage.
Why use it?
It helps avoid vague prompts that leave important visual decisions to the model and produce generic results.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/isaacsight/kernel/motion-prompt-language
Any agent
npx skills add isaacsight/kernel --skill motion-prompt-language
Clone the repo
git clone --depth 1 https://github.com/isaacsight/kernel

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 motion-prompt-language

README.md
[![agentmods](https://agentmods.dev/badge/skills/isaacsight/kernel/motion-prompt-language.svg)](https://agentmods.dev/skills/isaacsight/kernel/motion-prompt-language)
Your own site
<a href="https://agentmods.dev/skills/isaacsight/kernel/motion-prompt-language"><img src="https://agentmods.dev/badge/skills/isaacsight/kernel/motion-prompt-language.svg" alt="Measured on agentmods" height="20"></a>
Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,126 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00090 $0.01126
Opus 5 $0.00045 $0.00563
Sonnet 5 $0.00018 $0.00225
Haiku 4.5 $0.00009 $0.00113

Measured yesterday against content hash 106d3db4f1f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

motion-prompt-language 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.

.claude/skills/motion-prompt-language/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Motion Prompt Language

Write generation prompts like a creative director, not a text-to-image prompt. Think in layers, in this order:

Concept → Visual language → Camera → Animation → Typography → Lighting → Texture → Timing

A prompt that specifies every layer produces motion closer to a design-studio reel than a typical AI animation. A prompt that skips layers gets generic defaults for the missing ones.

The layer stack

Layer What to specify Example fragment
Concept One-sentence premise "A futuristic literary magazine comes to life."
Visual language Style anchors + studio references "Minimal Swiss design, Buck Design, DIA Studio"
Camera Movement verbs, restraint "Slow dolly, gentle zooms, no aggressive movement"
Animation How elements move "Elegant easing, kinetic typography, subtle parallax"
Typography Role of type in the frame "Large editorial typography; letters build from fragments"
Lighting Source + mood "Soft natural daylight, realistic shadows"
Texture Material world "Matte paper, visible fibers, ink bleed, Super 16mm grain"
Timing Duration + pacing "8 seconds. Everything moves deliberately."

Quality vocabulary

Descriptors that consistently raise output quality:

  • Studios (style anchors): Buck Design, Territory Studio, DIA Studio, ManvsMachine, Ordinary Folk, Instrument, Elastic; Refik Anadol for data-driven work; Saul Bass for kinetic type; Kurzgesagt for explainers
  • Motion: editorial motion design, kinetic typography, procedural animation, elegant easing, subtle parallax, physics-based motion, cinematic camera movement
  • Composition: layered compositions, negative space, modular grid system, Swiss typography, restrained color palette
  • Surface: matte materials, paper texture, film grain, Super 16 aesthetic, analog imperfections, volumetric lighting

Useful genre templates

Kinetic typography — large editorial type fills the screen; letters break apart; sentences build from fragments; strong rhythm; black and cream; Saul Bass / Buck / DIA Studio.

Read the full file on GitHub · 115 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. yesterday First seen · 115 lines · 90 tokens per session scan A 106d3db4f1f6

Subscribe to this mod's changes

motion-prompt-language is a skill published in the GitHub repository isaacsight/kernel (16 stars, last pushed 6d ago), licensed MIT. It adds 90 tokens to every session and 1,126 once invoked, about $0.0005 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.

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