frontend-state-management

frontend-state-management is a cursor rule for Cursor from williamisnotdefined/rubiks-cube-solver. It costs 0 tokens per session (2,904 once invoked), scanned A, original, MIT.

Guidance for managing data in a React web app, including component state, shared stores, asynchronous work, and updates to visual displays. React is a JavaScript library for building user interfaces.

In plain words
What is it for?
Use it when changing React state, custom hooks, stores, asynchronous workflows, or the way state keeps a cube visualization up to date.
Why use it?
It helps prevent data from being owned in the wrong place, reset incorrectly, or replaced by stale asynchronous results.

Cursor rule for Cursor

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/williamisnotdefined/rubiks-cube-solver/frontend-state-management
Clone the repo
git clone --depth 1 https://github.com/williamisnotdefined/rubiks-cube-solver

Made for: Cursor.

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 frontend-state-management

README.md
[![agentmods](https://agentmods.dev/badge/rules/williamisnotdefined/rubiks-cube-solver/frontend-state-management.svg)](https://agentmods.dev/rules/williamisnotdefined/rubiks-cube-solver/frontend-state-management)
Your own site
<a href="https://agentmods.dev/rules/williamisnotdefined/rubiks-cube-solver/frontend-state-management"><img src="https://agentmods.dev/badge/rules/williamisnotdefined/rubiks-cube-solver/frontend-state-management.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 2,904 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 5.1 $0.00000 $0.02904
Opus 5 $0.00000 $0.01452
Sonnet 5 $0.00000 $0.00581
Haiku 4.5 $0.00000 $0.00290

Measured 5d ago against content hash 3076cd9e761a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

frontend-state-management 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.cursor/rules/frontend-state-management.mdc · 211 lines

How it starts

The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generated from ai/registry.json. Do not edit manually.

Canonical skill: ../../ai/skills/frontend-state-management.md.

Referenced context:

  • ../../ai/rules/frontend-rules.md
  • ../../ai/rules/frontend-state-rules.md
  • ../../ai/rules/frontend-quality-rules.md
  • ../../ai/architecture/frontend-visualization.md

This file is compiled from canonical AI knowledge files. Edit canonical files under ai, then run npm run ai:sync.

Compiled AI Skill: frontend-state-management

Canonical Skill: ai/skills/frontend-state-management.md

Frontend State Management

Use for React state, custom hooks, stores, async workflow state, and visualization synchronization.

Read First

  • ai/rules/frontend-rules.md
  • ai/rules/frontend-state-rules.md
  • ai/rules/frontend-quality-rules.md
  • ai/architecture/frontend-visualization.md

Workflow

  • Classify the state and assign its nearest owner before moving it.
  • Keep server state in React Query, scoped shared client state in existing Zustand stores only when needed, and imperative rendering details in refs/hooks.
  • Define reset, cancellation, and stale-response behavior at the owner.
  • Verify the changed workflow and web build.

Referenced Context

Reference: ai/rules/frontend-rules.md

Frontend Rules

Boundaries

  • Keep solving, notation semantics, puzzle validity, and replay verification in Rust. React renders and coordinates typed product workflows.
  • Keep HTTP mechanics and normalization in apps/web/src/api; UI consumes domain hooks/adapters.
  • Typed scan-session contracts MAY contain reviewed stickers, confidence, and manual overrides. Notation solve UI MUST NOT expose facelet, Kociemba, or raw cube-state inputs.
  • Keep API load, form, page workflow, solve result, scanner review, and visualization playback state separately owned unless a focused page owner coordinates them.
  • Use the active @rubiks-cube-solver/rubiks-cube package as a visualization adapter, never as canonical solver state.

Read the full file on GitHub · 211 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. 5d ago First seen · 211 lines · 0 tokens per session scan A 3076cd9e761a

Subscribe to this mod's changes

frontend-state-management is a cursor rule published in the GitHub repository williamisnotdefined/rubiks-cube-solver (4 stars, last pushed 5d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,904 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.