ux-bar

ux-bar is a skill for Claude Code from 0xabrar/gstack-distilled. It costs 39 tokens per session (1,148 once invoked), scanned B, original, no licence file.

A collection of rules for judging whether software is easy to understand and use. It covers usability, the developer experience, the time needed to reach a first working result, and design choices that help users succeed.

In plain words
What is it for?
Use it to review product usability, improve developer tools, shorten the path to a first success, and set a consistent quality bar.
Why use it?
It helps reveal confusing interfaces and workflows before they waste users' or developers' time.

Skill for Claude Code

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

Part of the gstack-distilled plugin — 7 skills shipped together

Good fit Use it to review product usability, improve developer tools, shorten the path to a first success, and set a consistent quality bar.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/0xabrar/gstack-distilled/ux-bar
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 0xabrar/gstack-distilled --skill ux-bar
Clone the repo
git clone --depth 1 https://github.com/0xabrar/gstack-distilled

Made for: Claude Code.

Or install gstack-distilled, the plugin that ships this one along with the rest of its 7 skills.

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-bar

README.md
[![agentmods](https://agentmods.dev/badge/skills/0xabrar/gstack-distilled/ux-bar.svg)](https://agentmods.dev/skills/0xabrar/gstack-distilled/ux-bar)
Your own site
<a href="https://agentmods.dev/skills/0xabrar/gstack-distilled/ux-bar"><img src="https://agentmods.dev/badge/skills/0xabrar/gstack-distilled/ux-bar.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,148 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00039 $0.01148
Opus 5 $0.00019 $0.00574
Sonnet 5 $0.00008 $0.00230
Haiku 4.5 $0.00004 $0.00115

Measured 7d ago against content hash a8fea98ee32d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade B, and why

ux-bar scanned grade B with 1 finding 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 7d 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.

Tells the agent never to refusemediumAnti-refusal

Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.

> "Never refuse to use the browser." — even backend-only diffs ship through the browser

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/ux-bar/SKILL.md · 133 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 7d ago First seen · 133 lines · 39 tokens per session scan B a8fea98ee32d

Subscribe to this mod's changes

ux-bar is a skill published in the GitHub repository 0xabrar/gstack-distilled (12 stars, last pushed 4mo ago), with no licence file. It adds 39 tokens to every session and 1,148 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (tells the agent never to refuse). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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