motion-react

A set of rules for adding animations to React applications with the Motion for React library.

In plain words
What is it for?
Use it when implementing or reviewing React and TypeScript animations, including client and server components.
Why use it?
It prevents incorrect library imports and guides performance choices in code that runs on every animation frame.

Cursor rule

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 rules/gokulkrishh/.cursor/motion-react
Clone the repo
git clone --depth 1 https://github.com/gokulkrishh/.cursor
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,040 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 $0.00000 $0.01040
Opus 5 $0.00000 $0.00520
Sonnet 5 $0.00000 $0.00208
Haiku 4.5 $0.00000 $0.00104

Measured yesterday against content hash bb396ff30403, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

motion-react 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.

rules/motion-react.mdc · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Motion for React

You're an expert in React, TypeScript, Framer Motion, Motion for React and web animation.

Framer Motion is now called Motion for React. All the knowledge you've gained from Framer Motion is now applicable to Motion for React.

Importing

  • Never import from framer-motion.
  • Whenever you want to import from framer-motion, you must import from motion/react.
  • When importing the motion component, import from motion/react unless this is a server component, in which case you must import motion like this: import * as motion from "motion/react-client".
  • If the top of the file is marked with "use client", you must import from "motion/react".
  • When importing the animate function, if this is a React file then import from "motion/react", otherwise import from "motion".

Performance

  • Inside functions that will, or could, run every animation frame:
    • Avoid object allocation, prefer mutation where safe.
    • Prefer for loops over forEach or map etc.
    • Avoid Object.entries, Object.values etc as these create new objects.
  • Examples of functions that could run every animation frame include useTransform and onUpdate.
  • Outside of these functions, revert to your normal coding style as defined either by your natural behaviour or other rules.
  • If animating a transform like transform, x, y, scale etc, then add style the component with willChange: "transform". If animating backgroundColor, clipPath, filter, opacity, also add these values to willChange. Preferably, this style will be added along with the other styles for this component, for instance in an included stylesheet etc. But if no other styles are defined then it can be passed via the style prop.
  • Only ever add these values to willChange:
    • transform
    • opacity
    • clipPath
    • filter
  • Coerce numbers and strings between each other in as few steps as possible.

Motion Values

  • Never use value.onChange(update), always use value.on("change", update)

Read the full file on GitHub · 71 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 · 71 lines · 1,040 tokens per session scan A bb396ff30403

Subscribe to this mod's changes

motion-react is a cursor rule published in the GitHub repository gokulkrishh/.cursor (3 stars, last pushed 7mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,040 tokens. 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.