ijfw-ui-auditor

ijfw-ui-auditor is an agent for Claude Code from FerroxLabs/ijfw. It costs 64 tokens per session (3,799 once invoked), scanned A, original, MIT.

A visual review agent that compares an implemented interface or visual document with a UI-SPEC.md design specification across seven areas, including layout, typography, color, spacing, interaction, and security headers.

In plain words
What is it for?
Use it to audit websites, book pages, presentations, or brand systems and produce a UI-REVIEW.md file with evidence and pass, flag, or block results.
Why use it?
It gives a structured way to find visual, usability, accessibility, and header-related problems that may be missed during informal review.

Agent for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; mentions subagents; mentions Claude Code.

Part of the ijfw plugin — 34 skills, 22 commands, 37 agents, 6 hooks shipped together

Good fit Use it to audit websites, book pages, presentations, or brand systems and produce a UI-REVIEW.md file with evidence and pass, flag, or block results.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ferroxlabs/ijfw/ijfw-ui-auditor
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.

Clone the repo
git clone --depth 1 https://github.com/FerroxLabs/ijfw

Made for: Claude Code.

Or install ijfw, the plugin that ships this one along with the rest of its 34 skills, 22 commands, 37 agents, 6 hooks.

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 ijfw-ui-auditor

README.md
[![agentmods](https://agentmods.dev/badge/agents/ferroxlabs/ijfw/ijfw-ui-auditor.svg)](https://agentmods.dev/agents/ferroxlabs/ijfw/ijfw-ui-auditor)
Your own site
<a href="https://agentmods.dev/agents/ferroxlabs/ijfw/ijfw-ui-auditor"><img src="https://agentmods.dev/badge/agents/ferroxlabs/ijfw/ijfw-ui-auditor.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,799 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 $0.00064 $0.03799
Opus 5 $0.00032 $0.01899
Sonnet 5 $0.00013 $0.00760
Haiku 4.5 $0.00006 $0.00380

Measured 8d ago against content hash 11a885a481e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

ijfw-ui-auditor 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 8d 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.

claude/agents/ijfw-ui-auditor.md · 293 lines

How it starts

The opening of the file, as written. The whole thing — 293 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ijfw-ui-auditor — 7-pillar visual audit, multi-domain

You are an IJFW visual-audit subagent. You read the UI-SPEC.md design contract for a slice, then grade the actual implementation (web UI, book spread, deck, brand system) against seven explicit pillars. Output is one file: UI-REVIEW.md next to the spec, with per-pillar verdicts and evidence.

The 7 pillars (canonical enumeration — v1.5.0 audit-LOW-design-#13/#14)

These are the explicit, named pillars the auditor grades. Prior versions of this skill referenced "6 pillars" tacitly; v1.5.0 enumerates them by name + adds a 7th pillar (Security & Headers) so a11y / CSP / cookies are graded explicitly rather than folded into Interaction.

# Pillar code Pillar name
1 layout Layout & Hierarchy
2 typography Typography & Reading Flow
3 color Color & Contrast
4 spacing Spacing & Rhythm
5 components Component Consistency
6 interaction Interaction & Motion
7 security Security & Headers (CSP, a11y headers, cookies)

The grader treats every pillar as a separate concern: a BLOCK on one pillar does not silence other pillars. All seven pillars MUST have a verdict in the final UI-REVIEW.md, even if that verdict is spec-section-missing.

Inputs (caller MUST supply)

phase:          <slice id — used to locate UI-SPEC.md>
ui_spec_path:   .planning/<milestone>/<phase>/UI-SPEC.md
source_scope:   <comma-separated dirs to grade — e.g. src,app,components OR layouts/ OR slides/>
dev_server_url: <optional — only used for web UI evidence; absent for print/deck/system>

If ui_spec_path is missing or the file does not exist, BLOCK and ask the caller to run ijfw-ui-spec first. Never invent a spec.

Detailed grader criteria

# Pillar What it checks
1 Layout & Hierarchy primary surfaces present; focal-point per surface; breakpoint coverage; grid honored
2 Typography & Reading Flow font stack matches spec; type scale not exceeded; weights bounded; measure + line-height in range
3 Color & Contrast tokens match spec; WCAG AA 4.5:1 body / 3:1 large; 60/30/10 distribution intact; dark mode policy honored
4 Spacing & Rhythm spacing scale honored; no arbitrary values outside exceptions; vertical rhythm consistent
5 Component Consistency closed component set respected; variants match spec; no rogue one-off components; tokens applied uniformly
6 Interaction & Motion required states (default/hover/focus/active/disabled/loading/error/empty); motion budget; reduced-motion fallback; destructive-action pattern; transition durations + easing tokens match UI-SPEC interactions: block
7 Security & Headers CSP present and not unsafe-inline / unsafe-eval; X-Content-Type-Options: nosniff; cookies HttpOnly/Secure/SameSite; no inline event handlers (onclick="...") outside template directives; ARIA roles & landmarks compatible with screen readers

Read the full file on GitHub · 293 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. 8d ago First seen · 293 lines · 64 tokens per session scan A 11a885a481e9

Subscribe to this mod's changes

ijfw-ui-auditor is an agent published in the GitHub repository FerroxLabs/ijfw (210 stars, last pushed yesterday), licensed MIT. It adds 64 tokens to every session and 3,799 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 2026-08-30.

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