motion-craft

motion-craft is a skill for Claude Code, Codex from augchan42/inkstone. It costs 82 tokens per session (1,105 once invoked), scanned A, original, MIT.

A guide for planning or adding animations to a website based on an approved design plan or a stated motion direction. It can document the plan or modify the target project when implementation is explicitly requested.

In plain words
What is it for?
Use it to plan animations, write a motion document, or implement effects in a target repository. Before working, it checks project instructions, design documents, routes, and generated page templates.
Why use it?
It helps turn a visual motion idea into work that fits the existing website and its project rules. It also limits broad design research, leaving reference analysis to a separate design-planning tool.

Skill for Claude CodeCodex

Part of the inkstone plugin — 21 skills, 1 hook shipped together

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/augchan42/inkstone/motion-craft
Any agent
npx skills add augchan42/inkstone --skill motion-craft
Clone the repo
git clone --depth 1 https://github.com/augchan42/inkstone

Made for: Claude Code, Codex.

Or install inkstone, the plugin that ships this one along with the rest of its 21 skills, 1 hook.

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-craft

README.md
[![agentmods](https://agentmods.dev/badge/skills/augchan42/inkstone/motion-craft.svg)](https://agentmods.dev/skills/augchan42/inkstone/motion-craft)
Your own site
<a href="https://agentmods.dev/skills/augchan42/inkstone/motion-craft"><img src="https://agentmods.dev/badge/skills/augchan42/inkstone/motion-craft.svg" alt="Measured on agentmods" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,105 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 $0.00082 $0.01105
Opus 5 $0.00041 $0.00553
Sonnet 5 $0.00016 $0.00221
Haiku 4.5 $0.00008 $0.00111

Measured 5d ago against content hash 1703e12ce1f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

motion-craft 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 5d 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.

skills/motion-craft/SKILL.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Motion Craft

You implement animations against an approved blueprint or explicit direction. You NEVER perform broad reference research — that is design-dna's job.

Authority mode

mode =
  inherited from upgrade-site when dispatched
  else explicit implement request ("implement", "apply", "make the changes") → implement
  else plan

Plan mode writes only docs/MOTION.md sections and reports. Implement mode may modify source, subject to Git safety below.

Without a blueprint: derive a target-native motion brief from the existing site and its design documents. Do not research references.

Target resolution

target_repo = explicit path → current git root → cwd

Canonicalize; refuse / or $HOME as roots; all writes beneath the target; state the resolved target up front.

Step 1 — Target-policy discovery

This skill carries no project-specific policy. Before planning, read the target's AGENTS.md, CLAUDE.md, docs/DESIGN.md, docs/MOTION.md, route conventions, and package metadata. Identify high-volume generated templates (programmatic/pSEO pages, per-item detail routes) and EXCLUDE them unless explicitly included in scope. Record discovered policy at the top of your plan output — i.e. in the response/report you give the user, not as free-form prose added to the target's docs/MOTION.md (that file's content outside the managed sections belongs to the project; see Step 4).

Step 2 — Stack detection

Detect the animation library and version, its import convention, the CSS framework, and the rendering model (server/client components, hydration). Prefer stack-native techniques. Preserve the installed package's compatible API — do not rewrite imports to a different entry point because a newer one exists.

Never add a new animation dependency without asking. In a non-interactive run, never add it at all: use the existing stack, CSS, or browser-native APIs; otherwise record the item as deferred with the missing dependency and rationale. The pipeline must not stall.

Read the full file on GitHub · 114 lines

Files

What ships with it

2 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.

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. 5d ago First seen · 114 lines · 82 tokens per session scan A 1703e12ce1f0

Subscribe to this mod's changes

motion-craft is a skill published in the GitHub repository augchan42/inkstone (4 stars, last pushed 9d ago), licensed MIT. It adds 82 tokens to every session and 1,105 once invoked, about $0.0004 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 2026-08-31.

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