rubiks-cube-solver: Skill for Claude Code

.agents/skills/frontend-form-validation/SKILL.md

frontend-form-validation is a skill for Claude Code, Codex from williamisnotdefined/rubiks-cube-solver. It costs 23 tokens per session (2,420 once invoked), scanned A, original, MIT.

A set of guidelines for checking web-form inputs and submissions. It covers user-facing checks separately from the API or solving engine.

In plain words
What is it for?
Changing solve controls, input limits, scanner review controls, validation messages, or form submission logic, including related tests.
Why use it?
It helps prevent invalid requests and keeps error messages, limits, and submission behavior consistent and accessible.

Skill for Claude CodeCodex

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

This is williamisnotdefined/rubiks-cube-solver's own configuration. It tells Claude Code and Codex how to work on rubiks-cube-solver 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 rubiks-cube-solver configures →

Reuse

Borrowing it

Nothing to install: this file belongs to williamisnotdefined/rubiks-cube-solver. 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/williamisnotdefined/rubiks-cube-solver/main/.agents/skills/frontend-form-validation/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/williamisnotdefined/rubiks-cube-solver

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 frontend-form-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/williamisnotdefined/rubiks-cube-solver/frontend-form-validation/github.svg)](https://agentmods.dev/skills/williamisnotdefined/rubiks-cube-solver/frontend-form-validation)
Your own site
<a href="https://agentmods.dev/skills/williamisnotdefined/rubiks-cube-solver/frontend-form-validation"><img src="https://agentmods.dev/badge/skills/williamisnotdefined/rubiks-cube-solver/frontend-form-validation/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 frontend-form-validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/williamisnotdefined/rubiks-cube-solver/frontend-form-validation"><img src="https://agentmods.dev/badge/skills/williamisnotdefined/rubiks-cube-solver/frontend-form-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,420 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 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 $0.00023 $0.02420
Opus 5.5 $0.00009 $0.00968
Sonnet 5.5 $0.00005 $0.00484
Haiku 4.5 $0.00002 $0.00242

Measured 2mo ago against content hash 7c2f60d61b75, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

frontend-form-validation 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 2mo 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.

.agents/skills/frontend-form-validation/SKILL.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 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-form-validation.md.

Referenced context:

  • ../../../ai/rules/frontend-rules.md
  • ../../../ai/rules/frontend-form-rules.md
  • ../../../ai/rules/frontend-quality-rules.md
  • ../../../ai/architecture/api-boundary.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-form-validation

Canonical Skill: ai/skills/frontend-form-validation.md

Frontend Form Validation

Use for solve controls, inputs, local limits, scanner review controls, and form submission behavior.

Read First

  • ai/rules/frontend-rules.md
  • ai/rules/frontend-form-rules.md
  • ai/rules/frontend-quality-rules.md
  • ai/architecture/api-boundary.md

Workflow

  • Separate lightweight UX validation from API/engine semantics.
  • Choose local state or existing RHF/Zod usage based on the actual form, not a mandatory setup.
  • Keep notation forms raw-state-free and scan corrections inside typed scan sessions.
  • Verify accessible errors, blocked invalid requests, API outcomes, and relevant E2E behavior.

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.

Web Runtime And Locales

Read the full file on GitHub · 164 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. 2mo ago First seen · 164 lines · 23 tokens per session scan A 7c2f60d61b75

Subscribe to this mod's changes

frontend-form-validation is a skill published in the GitHub repository williamisnotdefined/rubiks-cube-solver (5 stars, last pushed 4d ago), licensed MIT. It adds 23 tokens to every session and 2,420 once invoked, about $0.0001 per session on Opus 5.5. 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.

Related

frontend-form-validation compared with skills from other repositories

frontend-form-validation next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
frontend-form-validationwilliamisnotdefined/rubiks-cube-solverSkill54d agoMITA23Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143ktodayMITA103Claude Code