ux-baseline-check

ux-baseline-check is a skill for Claude Code from aa-on-ai/agentic-design-system. It costs 50 tokens per session (917 once invoked), scanned A, original, MIT.

A checklist for reviewing user interfaces, forms, screens, flows, and dashboards. It covers how they should appear when loading, empty, full, failing, partially working, or being interacted with.

In plain words
What is it for?
For checking empty, loading, loaded, error, partial, long-content, hover, focus, active, disabled, and selected states in frontend work.
Why use it?
It prevents missing states that leave users confused, such as blank loading screens, unclear errors, or invisible keyboard focus.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agentic-design-system plugin — 10 skills, 1 MCP server shipped together

Good fit For checking empty, loading, loaded, error, partial, long-content, hover, focus, active, disabled, and selected states in frontend work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aa-on-ai/agentic-design-system/ux-baseline-check
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 aa-on-ai/agentic-design-system --skill ux-baseline-check
Clone the repo
git clone --depth 1 https://github.com/aa-on-ai/agentic-design-system

Made for: Claude Code.

Or install agentic-design-system, the plugin that ships this one along with the rest of its 10 skills, 1 MCP server.

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 ux-baseline-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/aa-on-ai/agentic-design-system/ux-baseline-check/github.svg)](https://agentmods.dev/skills/aa-on-ai/agentic-design-system/ux-baseline-check)
Your own site
<a href="https://agentmods.dev/skills/aa-on-ai/agentic-design-system/ux-baseline-check"><img src="https://agentmods.dev/badge/skills/aa-on-ai/agentic-design-system/ux-baseline-check/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 ux-baseline-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/aa-on-ai/agentic-design-system/ux-baseline-check"><img src="https://agentmods.dev/badge/skills/aa-on-ai/agentic-design-system/ux-baseline-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 917 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 $0.00050 $0.00917
Opus 5 $0.00025 $0.00458
Sonnet 5 $0.00010 $0.00183
Haiku 4.5 $0.00005 $0.00092

Measured 12d ago against content hash 783aab0b94f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

ux-baseline-check 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 12d 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/ux-baseline-check/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UX Baseline Check

Core Pack — Always Active

This is a core skill. Apply it on ALL visual and frontend work alongside design-review.

Every screen ships with ALL states covered. No exceptions. This is the minimum bar.

The State Inventory

Before any page or component is "done", verify each applicable state exists:

1. Data States

  • Empty — no data yet. Helpful message + clear CTA, not a blank screen
  • Loading — skeleton, spinner, or shimmer. Never a white flash
  • Loaded — the happy path, obviously
  • Error — API failure, network issue. User-friendly message + retry action
  • Partial — some data loaded, some failed. Don't hide what works
  • Long content — what happens with 200 items? 2000-character names? Test it

2. Interaction States

  • Hover — every clickable element has a hover state
  • Focus — keyboard navigation works, focus rings visible
  • Active/pressed — buttons respond to clicks visually
  • Disabled — grayed out with clear reason why (tooltip or helper text)
  • Selected — multi-select, current tab, active filter all visually distinct
  • Adjacent-action consistency — when a state is read-only, disabled, offline, permission-limited, or destructive, inspect every nearby primary, secondary, toolbar, and inline action. Remove, relabel, or visibly explain contradictions; use native disabled semantics when an inactive control remains visible, and preserve active actions in unaffected states.

3. Form States

  • Validation — inline errors on blur, not just on submit
  • Required fields — clearly marked
  • Success feedback — user knows their action worked (toast, inline, redirect)
  • Destructive confirmation — delete/remove actions require confirmation
  • Autofill — doesn't break layout when browser autofills

4. Responsive

  • Mobile (375px) — usable, not just visible. Touch targets ≥48px with ≥8px spacing between them
  • Tablet (768px) — layout adapts, not just shrinks
  • Desktop (1280px) — the primary target, looks intentional
  • Wide (1800px+) — content doesn't stretch absurdly. Max-width or centered

Read the full file on GitHub · 80 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. 12d ago First seen · 80 lines · 50 tokens per session scan A 783aab0b94f0

Subscribe to this mod's changes

ux-baseline-check is a skill published in the GitHub repository aa-on-ai/agentic-design-system (5 stars, last pushed 22d ago), licensed MIT. It adds 50 tokens to every session and 917 once invoked, about $0.0003 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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