A guide for building and editing Svelte 5 user interfaces with the DryUI component library, including layouts, themes, and accessibility rules.

Use it to create or modify pages, routes, forms, dashboards, component combinations, and visual styling in Svelte apps.

It keeps UI code aligned with DryUI’s components and checks, reducing inconsistent controls and layout or accessibility problems.

dryui-build — Skill for Claude Code and Codex by rob-balfre

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 final-candidate-v2

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/rob-balfre/dryui/final-candidate-v2/github.svg)](https://agentmods.dev/skills/rob-balfre/dryui/final-candidate-v2)

Your own site

<a href="https://agentmods.dev/skills/rob-balfre/dryui/final-candidate-v2"><img src="https://agentmods.dev/badge/skills/rob-balfre/dryui/final-candidate-v2/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/rob-balfre/dryui/final-candidate-v2"><img src="https://agentmods.dev/badge/skills/rob-balfre/dryui/final-candidate-v2.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,059 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin 80% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00062	$0.03059
Opus 5	$0.00031	$0.01529
Sonnet 5	$0.00012	$0.00612
Haiku 4.5	$0.00006	$0.00306

Measured 8d ago against content hash d6c147e8b30e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

dryui-build scanned grade C 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 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

- ``

Origin

This is a copy

80% identical to dryui-build — 79 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

reports/skill-experiments/2026-05-11/batch-4/final-candidate-v2/SKILL.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DryUI Build

Build real Svelte 5 UI with DryUI. This skill is only for UI implementation and polish. It does not install DryUI, scaffold projects, run live feedback, or resolve feedback submissions.

Lint First

DryUI lint rules are the contract. If lint, the compiler, or component metadata disagrees with a visual idea, restructure the markup or CSS instead of bypassing the rule.

Use @dryui/ui primitives when DryUI provides one. Do not recreate controls with raw HTML.
DryUI does not ship a layout component. Use plain markup with data-layout and data-layout-area.
Page and section layout lives in src/layout.css, scoped under [data-layout='<name>'].
All consumer display: grid and display: flex declarations live in src/layout.css or @container blocks inside it.
In src/layout.css, use only lint-safe display values such as grid or flex; never add display: block, contents, flow-root, or reset-style display values.
Route and component <style> blocks must not contain page-level display: grid, display: flex, layout breakpoints, inline style=, or Svelte style: directives.
Responsive layout is mobile-first and uses @container page (...); never @media for layout breakpoints.
src/layout.css is structural only: display, grid, flex, container, tokenized spacing, alignment, and block-size constraints. No color, background, border, shadow, opacity, transition, transform, font, text, position, z-index, width, height, or inline-size.
Visual CSS belongs in app/component CSS and uses real --dry-* tokens such as --dry-color-bg-base, --dry-color-text, and --dry-color-border, or app-owned custom properties.
In app/component CSS, constrain replaced media and text inside media-backed grids so intrinsic image size or long headings cannot enlarge grid tracks: use inline-size: 100%, max-inline-size: 100%, min-inline-size: 0, object-fit, and readable max-width/maxMeasure where needed.
Set body { font-family: var(--dry-font-sans); } in src/app.css so dialogs, popovers, and top-layer UI inherit the app font.

Read the full file on GitHub · 166 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.

8d ago First seen · 166 lines · 62 tokens per session scan C d6c147e8b30e

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 62 tokens to every session and 3,059 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). It is 80% identical to dryui-build, differing in 79 lines, and is treated as a copy.

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