ss-audit

ss-audit is a skill for Claude Code, Codex from bitjaru/styleseed. It costs 20 tokens per session (1,188 once invoked), scanned A, original, MIT.

A skill for reviewing screens for usability problems using Nielsen's ten usability heuristics and mobile design practices. Heuristics are general rules for judging whether an interface is easy to understand and use.

In plain words
What is it for?
Use it to audit an existing screen for usability issues, while using separate tools for accessibility, design-system compliance, or new-screen design.
Why use it?
It provides a structured way to find confusing labels, missing feedback, navigation problems, and other issues before users encounter them.

Skill for Claude CodeCodex

Part of the styleseed plugin — 24 skills shipped together

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 skills/bitjaru/styleseed/ss-audit
Any agent
npx skills add bitjaru/styleseed --skill ss-audit
Clone the repo
git clone --depth 1 https://github.com/bitjaru/styleseed

Made for: Claude Code, Codex.

Or install styleseed, the plugin that ships this one along with the rest of its 24 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 ss-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/bitjaru/styleseed/ss-audit.svg)](https://agentmods.dev/skills/bitjaru/styleseed/ss-audit)
Your own site
<a href="https://agentmods.dev/skills/bitjaru/styleseed/ss-audit"><img src="https://agentmods.dev/badge/skills/bitjaru/styleseed/ss-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,188 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 $0.00020 $0.01188
Opus 5 $0.00010 $0.00594
Sonnet 5 $0.00004 $0.00238
Haiku 4.5 $0.00002 $0.00119

Measured 4d ago against content hash 77dd98c3cc46, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ss-audit 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 4d 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.

engine/.claude/skills/ss-audit/SKILL.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UX Audit

Registry-first artifact boundary

When .styleseed/project.json and .styleseed/artifacts/index.json exist, resolve the requested artifact ID first, then read only .styleseed/bundles/<artifact-id>.md and .styleseed/manifests/<artifact-id>.json. Never fall back to the global legacy bundle for a registry project. Legacy projects may use .styleseed/effective-rules.md only when no registry exists.

When NOT to use

  • For accessibility-only issues → use /ss-a11y
  • For design system token/golden-rule compliance → use /ss-review
  • For copy/microcopy quality → use /ss-copy
  • For brand new screens that don't exist yet — design first with /ss-page or /ss-flow

Target: $ARGUMENTS

Audit Framework

Nielsen's 10 Usability Heuristics

1. Visibility of System Status
  • Loading states present (skeleton screens, not spinners)
  • Success/error feedback after actions (toast notifications)
  • Progress indicators for multi-step flows
  • Active state clearly shown on navigation items
  • Real-time data has timestamp showing freshness
2. Match Between System and Real World
  • Labels use user's language, not technical jargon
  • Icons are universally recognizable (Lucide standard set)
  • Number formats match user expectations (comma separators, currency symbols)
  • Date formats are locale-appropriate
3. User Control and Freedom
  • Back navigation available on all non-root screens
  • Destructive actions have confirmation dialogs
  • Undo available for reversible actions (toast with undo)
  • Bottom sheet/modal can be dismissed (backdrop tap, swipe down, X button)
  • No dark patterns (no forced actions, always a way to dismiss)
4. Consistency and Standards
  • Same action = same appearance everywhere
  • Color meanings are consistent (green=success, red=error, brand=active)
  • Text hierarchy follows the 5-level grayscale system
  • Surface treatment follows the resolved grammar and brand recipe
  • Spacing follows the resolved token scale and adapter constraints

Read the full file on GitHub · 123 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. 4d ago First seen · 123 lines · 20 tokens per session scan A 77dd98c3cc46

Subscribe to this mod's changes

ss-audit is a skill published in the GitHub repository bitjaru/styleseed (939 stars, last pushed yesterday), licensed MIT. It adds 20 tokens to every session and 1,188 once invoked, about $0.0001 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 2026-08-30.