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 shahidshabbir-se/my-pi-setup --skill cssgit clone --depth 1 https://github.com/shahidshabbir-se/my-pi-setupWrote 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/shahidshabbir-se/my-pi-setup/css)<a href="https://agentmods.dev/skills/shahidshabbir-se/my-pi-setup/css"><img src="https://agentmods.dev/badge/skills/shahidshabbir-se/my-pi-setup/css/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/shahidshabbir-se/my-pi-setup/css"><img src="https://agentmods.dev/badge/skills/shahidshabbir-se/my-pi-setup/css.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 | $0.00023 | $0.00750 |
| Opus 5 | $0.00012 | $0.00375 |
| Sonnet 5 | $0.00005 | $0.00150 |
| Haiku 4.5 | $0.00002 | $0.00075 |
Grade A, and why
css 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.
This is a copy
100% identical to css — 0 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.
How it starts
The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CSS Development Guidelines
Core Principles
- Write semantic HTML to improve accessibility and SEO
- Use CSS for styling, avoiding inline styles
- Ensure responsive design using media queries and flexible layouts
- Prioritize external stylesheets over inline or embedded styles
Layout Techniques
Flexbox
- Use Flexbox for one-dimensional layouts (rows or columns)
- Leverage
justify-contentandalign-itemsfor alignment - Use
flex-wrapfor responsive wrapping behavior - Prefer
gapproperty over margins for consistent spacing
Grid
- Use CSS Grid for two-dimensional layouts
- Define grid templates with
grid-template-columnsandgrid-template-rows - Use
grid-areafor named template areas - Leverage
auto-fitandauto-fillfor responsive grids
Units and Typography
- Use
remunits for typography to respect user preferences - Use
emunits for component-relative sizing - Avoid
pxfor font sizes; reserve for borders and fixed elements - Implement fluid typography with
clamp()when appropriate - Use viewport units (
vw,vh) thoughtfully for full-screen layouts
CSS Variables (Custom Properties)
- Define design tokens as CSS variables on
:root - Use variables for colors, spacing, typography, and shadows
- Implement theming by overriding variables in different contexts
- Name variables semantically (e.g.,
--color-primary,--spacing-md)
Naming Conventions
BEM Methodology
- Block: Standalone component (e.g.,
.card) - Element: Part of a block (e.g.,
.card__title) - Modifier: Variation of block or element (e.g.,
.card--featured)
Best Practices
- Use lowercase with hyphens for class names
- Avoid IDs for styling; reserve for JavaScript hooks
- Keep specificity low by using single class selectors
- Scope styles to components to prevent conflicts
Specificity Management
- Maintain specificity at 0-1-0 (single class) when possible
- Avoid
!importantdeclarations - Use cascading intentionally, not accidentally
- Consider CSS Layers (
@layer) for specificity control
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.
- 9d ago First seen · 107 lines · 23 tokens per session scan A 0016c4cfb127
css is a skill published in the GitHub repository shahidshabbir-se/my-pi-setup (2 stars, last pushed 3mo ago), licensed MIT. It adds 23 tokens to every session and 750 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to css, differing in 0 lines, and is treated as a copy.
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