interfaces-raunofreiberg

interfaces-raunofreiberg is a skill for Claude Code from artivilla/agents-config. It costs 40 tokens per session (2,186 once invoked), scanned A, original, MIT.

A reviewer for web interface code based on Rauno Freiberg's interface guidelines. It checks interaction details, text, motion, touch behavior, speed, and accessibility, which helps people with different abilities use a site.

In plain words
What is it for?
Use it to review specific files or patterns in a website or web application, such as forms, buttons, inputs, layouts, and animations.
Why use it?
It catches small usability and accessibility problems that can make an interface confusing, slow, or difficult to operate.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

Good fit Use it to review specific files or patterns in a website or web application, such as forms, buttons, inputs, layouts, and animations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/artivilla/agents-config/interfaces-raunofreiberg
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.

Any agent
npx skills add artivilla/agents-config --skill interfaces-raunofreiberg
Clone the repo
git clone --depth 1 https://github.com/artivilla/agents-config

Made for: Claude Code.

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 interfaces-raunofreiberg

README.md
[![agentmods](https://agentmods.dev/badge/skills/artivilla/agents-config/interfaces-raunofreiberg/github.svg)](https://agentmods.dev/skills/artivilla/agents-config/interfaces-raunofreiberg)
Your own site
<a href="https://agentmods.dev/skills/artivilla/agents-config/interfaces-raunofreiberg"><img src="https://agentmods.dev/badge/skills/artivilla/agents-config/interfaces-raunofreiberg/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 interfaces-raunofreiberg

Your own site · 80×15
<a href="https://agentmods.dev/skills/artivilla/agents-config/interfaces-raunofreiberg"><img src="https://agentmods.dev/badge/skills/artivilla/agents-config/interfaces-raunofreiberg.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,186 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 $0.00040 $0.02186
Opus 5 $0.00020 $0.01093
Sonnet 5 $0.00008 $0.00437
Haiku 4.5 $0.00004 $0.00219

Measured 10d ago against content hash e01d646f3149, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

interfaces-raunofreiberg 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 10d 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/interfaces-raunofreiberg/SKILL.md · 181 lines

How it starts

The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Web Interface Guidelines (Rauno Freiberg)

You are a design engineer reviewing code against Rauno Freiberg's interface guidelines. This is a non-exhaustive list of details that make a good web interface. Some may be subjective, but most apply to all websites.

The WAI-ARIA spec is deliberately not duplicated here. However, some accessibility guidelines are pointed out.

Mode

If $ARGUMENTS is provided, analyze that specific file or pattern. If $ARGUMENTS is empty, ask the user which file(s) to review.


Interactivity

  • Clicking the input label should focus the input field
  • Inputs should be wrapped with a <form> to submit by pressing Enter
  • Inputs should have an appropriate type like password, email, etc
  • Inputs should disable spellcheck and autocomplete attributes most of the time
  • Inputs should leverage HTML form validation by using the required attribute when appropriate
  • Input prefix and suffix decorations, such as icons, should be absolutely positioned on top of the text input with padding, not next to it, and trigger focus on the input
  • Toggles should immediately take effect, not require confirmation
  • Buttons should be disabled after submission to avoid duplicate network requests
  • Interactive elements should disable user-select for inner content
  • Decorative elements (glows, gradients) should disable pointer-events to not hijack events
  • Interactive elements in a vertical or horizontal list should have no dead areas between each element, instead, increase their padding

Typography

  • Fonts should have -webkit-font-smoothing: antialiased applied for better legibility
  • Fonts should have text-rendering: optimizeLegibility applied for better legibility
  • Fonts should be subset based on the content, alphabet or relevant language(s)
  • Font weight should not change on hover or selected state to prevent layout shift
  • Font weights below 400 should not be used
  • Medium sized headings generally look best with a font weight between 500-600
  • Adjust values fluidly by using CSS clamp(), e.g. clamp(48px, 5vw, 72px) for the font-size of a heading
  • Where available, tabular figures should be applied with font-variant-numeric: tabular-nums, particularly in tables or when layout shifts are undesirable, like in timers
  • Prevent text resizing unexpectedly in landscape mode on iOS with -webkit-text-size-adjust: 100%

Read the full file on GitHub · 181 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. 10d ago First seen · 181 lines · 40 tokens per session scan A e01d646f3149

Subscribe to this mod's changes

interfaces-raunofreiberg is a skill published in the GitHub repository artivilla/agents-config (0 stars, last pushed 3mo ago), licensed MIT. It adds 40 tokens to every session and 2,186 once invoked, about $0.0002 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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