dryui-build

dryui-build is a skill for Claude Code, Codex from rob-balfre/dryui. It costs 44 tokens per session (967 once invoked), scanned A, original, MIT.

A skill for implementing dense, high-fidelity DryUI app pages from mockup images, with emphasis on filling the viewport and repairing responsive layouts. High fidelity means closely matching the reference’s visual structure and density.

In plain words
What is it for?
Use it to build operational dashboard-style screens, match gutters and pane relationships, fill desktop space, and summarize content intentionally on small screens.
Why use it?
It helps prevent app screens from becoming sparse landing pages or awkwardly stacked desktop layouts on mobile.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to build operational dashboard-style screens, match gutters and pane relationships, fill desktop space, and summarize content intentionally on small screens.

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Install with agentmods
npx agentmods add skills/rob-balfre/dryui/v11c-density-first
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 rob-balfre/dryui --skill v11c-density-first
Clone the repo
git clone --depth 1 https://github.com/rob-balfre/dryui

Made for: Claude Code, Codex.

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 dryui-build

README.md
[![agentmods](https://agentmods.dev/badge/skills/rob-balfre/dryui/v11c-density-first/github.svg)](https://agentmods.dev/skills/rob-balfre/dryui/v11c-density-first)
Your own site
<a href="https://agentmods.dev/skills/rob-balfre/dryui/v11c-density-first"><img src="https://agentmods.dev/badge/skills/rob-balfre/dryui/v11c-density-first/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 dryui-build

Your own site · 80×15
<a href="https://agentmods.dev/skills/rob-balfre/dryui/v11c-density-first"><img src="https://agentmods.dev/badge/skills/rob-balfre/dryui/v11c-density-first.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 967 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 $0.00044 $0.00967
Opus 5 $0.00022 $0.00483
Sonnet 5 $0.00009 $0.00193
Haiku 4.5 $0.00004 $0.00097

Measured 9d ago against content hash 073a8414364f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

dryui-build 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 9d 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.

reports/skill-experiments/2026-05-11/batch-8/v11c-density-first/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DryUI Full Page: Density First

Build a finished DryUI app page from the design image. Treat the reference as an operational product screen, not a landing page.

Experiment Harness Rule

Run bun run build before finishing. Do not run bun run dev, bun run check, or a long-running screenshot/browser server during the agent step; the experiment harness performs browser capture and visual scoring after you finish.

Edit only src/routes/+page.svelte, src/layout.css, and src/app.css if needed.

Non-Negotiables

  • The page must feel like a usable app screen on the first viewport.
  • No landing hero, marketing copy, decorative gradients, or oversized editorial cards.
  • Desktop must use the canvas. A 1440px viewport should not show a tiny app mockup with blank space around it.
  • Mobile must be intentionally summarized. Do not stack every desktop cell or row if it creates a wasteful scroll dump.
  • Match whether the reference has gutters. If panes touch, set shell or nested gap: 0; if separated, use DryUI space tokens.

Three Passes

  1. Structure: identify shell areas, primary task, mobile order, tablet grouping, and desktop panes.
  2. Components: implement a real page using DryUI components and compact static content.
  3. Repair: build, check 390/820/1440, then fix density, contrast, overflow, and whitespace.

DryUI Component Set

Use this safe component set:

  • Button for commands and icon buttons.
  • Input for search/filter fields.
  • Badge for statuses and compact metadata.
  • Table for tabular CRM or activity rows.
  • Tabs for modes or grouped sections.
  • Separator for dense panel separation.

Avoid uncertain APIs. Use static layout blocks for charts, boards, timelines, and document previews.

Shell Contract

Use one shell:

<main data-layout="<type>-shell">
	<div data-layout-area="page">
		<header data-layout-area="topbar">...</header>
		<nav data-layout-area="navigation">...</nav>
		<section data-layout-area="primary">...</section>
		<aside data-layout-area="secondary">...</aside>
	</div>
</main>

Read the full file on GitHub · 100 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. 9d ago First seen · 100 lines · 44 tokens per session scan A 073a8414364f

Subscribe to this mod's changes

dryui-build is a skill published in the GitHub repository rob-balfre/dryui (9 stars, last pushed 3mo ago), licensed MIT. It adds 44 tokens to every session and 967 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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