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 agentmods add skills/g1joshi/agent-skills/bootstrapnpx skills add G1Joshi/Agent-Skills --skill bootstrapgit clone --depth 1 https://github.com/G1Joshi/Agent-SkillsWrote 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/g1joshi/agent-skills/bootstrap)<a href="https://agentmods.dev/skills/g1joshi/agent-skills/bootstrap"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/bootstrap.svg" alt="Measured on agentmods" 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 | $0.00014 | $0.00269 |
| Opus 5 | $0.00007 | $0.00134 |
| Sonnet 5 | $0.00003 | $0.00054 |
| Haiku 4.5 | $0.00001 | $0.00027 |
Grade A, and why
bootstrap 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 today.
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.
What it actually says
Bootstrap
Bootstrap 5 dropped jQuery and embraced modern CSS (Grid, Flexbox, Variables). It remains the safest choice for admin panels and internal tools.
When to Use
- Prototypes: "Get it working" in 5 minutes.
- Admin Panels: Hundreds of templates available.
- Quick MVP: When custom design is a secondary concern.
Core Concepts
Grid System
The 12-column grid (col-md-6) is still the industry standard mental model.
Utilities
d-flex, mt-5, text-center. (Influenced Tailwind).
Components
Modals, Dropdowns, Navbars work out of the box (JS included).
Best Practices (2025)
Do:
- Use Data Attributes:
data-bs-toggle="modal"(No JS code needed). - Use CSS Variables:
--bs-primarymakes theming easy. - Use SCSS: Customize the build by importing only needed parts.
Don't:
- Don't include jQuery: Bootstrap 5 doesn't need it.
References
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.
- today First seen · 45 lines · 14 tokens per session scan A 90deaadb2d67
bootstrap is a skill published in the GitHub repository G1Joshi/Agent-Skills (12 stars, last pushed 6mo ago), licensed MIT. It adds 14 tokens to every session and 269 once invoked, about $0.0001 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 2026-09-03.
Other skills, from other repositories
layout-audit
Audit the structure and spacing of a localhost page — spacing scale consistency, whether spacing groups related content, container width and line measure, optical alignment, grid versus flex misuse, magic z-index values and overflow. Use when the user mentions spacing, padding or margins, says a layout feels cramped…
motion-system
Audit and fix the animation on a running localhost page — durations, easing, which properties are animated, reduced-motion handling and missing exit transitions — then propose a named duration and easing token set. Use when the user mentions animation, transitions, motion, easing, timing, something feeling…
polish-pass
Run the last-10% polish checklist on a localhost page — focus rings, selection colour, scroll behaviour, tabular numbers, heading wrap balance, paragraph measure, skeletons, empty and error states, hover/active/disabled states, cursors, icon sizing and stroke, favicon and title, 404 and offline. Use when the user asks…
color-system
Audit and fix colour on a running localhost page — whether the accent is the framework default, hardcoded hex values instead of tokens, pure black and white, a flat neutral ramp, weak contrast on text and controls, and colour used as the only signal of state. Use when the user mentions colour, palette, theme, accent…
type-system
Audit and fix typography on a running localhost page — how many distinct sizes are in use, whether there is a scale, line length, line height, letter-spacing at display sizes, tabular numerals, and font loading shift. Use when the user mentions typography, fonts, font sizes, text hierarchy, line height, leading…
frontend-ui-engineering
Build accessible, responsive UI components avoiding generic AI aesthetic. Bootstrap on demand.