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.
npx skills add PrabhdeepSingh/claude-plugins --skill layoutgit clone --depth 1 https://github.com/PrabhdeepSingh/claude-pluginsWrote 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.
[](https://agentmods.dev/skills/prabhdeepsingh/claude-plugins/layout)<a href="https://agentmods.dev/skills/prabhdeepsingh/claude-plugins/layout"><img src="https://agentmods.dev/badge/skills/prabhdeepsingh/claude-plugins/layout/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.
<a href="https://agentmods.dev/skills/prabhdeepsingh/claude-plugins/layout"><img src="https://agentmods.dev/badge/skills/prabhdeepsingh/claude-plugins/layout.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00104 | $0.01893 |
| Opus 5.5 | $0.00042 | $0.00757 |
| Sonnet 5.5 | $0.00021 | $0.00379 |
| Haiku 4.5 | $0.00010 | $0.00189 |
Grade A, and why
layout 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Layout that communicates structure
Layout communicates before a single word is read: position, spacing, and alignment carry hierarchy on their own, and generous space beats decoration. A good layout also survives stress: resize it, translate it, mirror it for RTL, and it should still hold together. Apply these principles when building or reviewing UI code, and express every change in the project's existing styling system (Tailwind, plain CSS, CSS-in-JS); never introduce a second styling approach.
Hit-area sizes and focus behavior are covered by [[accessibility]]; visual polish (radius, shadows, animation) by [[ui-polish]]; line length and text spacing by [[typography]].
Treat the numeric values below as starting points for interfaces without an established density or spacing system. Preserve deliberate platform chrome, compact professional tools, and project tokens when they remain usable under hit-area, zoom, localization, and viewport stress tests.
Core Principles
1. Group with Space, Not Lines
Negative space is the primary grouping tool; background shapes second; separator lines last, only where space alone can't carry the structure. The gap between groups must be at least 2× the gap within a group (8px intra-group → 16px+ inter-group), or the grouping reads as noise.
→ references/grouping-and-alignment.md — space-vs-separator decisions, alignment edges, logical properties, and importance ordering behind §1–§4, read when this change groups, aligns, or reorders elements.
2. Keep Controls Distinct from Content
Interactive elements must look interactive: a background shape, a border, or a consistent placement zone. Never style a control identically to adjacent static text.
3. Align to Shared Edges
Pick alignment edges and stick to them; every stray edge reads as noise. Use one project spacing step for each level of subordination (16px is a useful default). Use logical properties (padding-inline-start, margin-inline-end) for direction-dependent layout; reserve physical left/right for genuinely physical geometry.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 96 lines · 104 tokens per session scan A 880e9ddbb6d1
layout is a skill published in the GitHub repository PrabhdeepSingh/claude-plugins (4 stars, last pushed 1mo ago), licensed MIT. It adds 104 tokens to every session and 1,893 once invoked, about $0.0004 per session on Opus 5.5. 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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