mobile-bootstrap-offcanvas-navbar

mobile-bootstrap-offcanvas-navbar is a skill for Claude Code, Codex from mhrsdev/AI-Agent-Skills-Library. It costs 34 tokens per session (288 once invoked), scanned A, original, MIT.

A guide for mobile-first navigation menus, including collapsing navbars and slide-out offcanvas drawers. Offcanvas drawers are panels that open over or beside the page.

In plain words
What is it for?
Use it to build or fix Bootstrap-style mobile menus, ARIA states, long-menu scrolling, transitions, and iOS scroll behavior.
Why use it?
It helps keep menu state, accessibility information, scrolling, and background-page movement in sync on small screens.

Skill for Claude CodeCodex

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

Good fit Use it to build or fix Bootstrap-style mobile menus, ARIA states, long-menu scrolling, transitions, and iOS scroll behavior.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mhrsdev/ai-agent-skills-library/mobile-bootstrap-offcanvas-navbar
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 mhrsdev/AI-Agent-Skills-Library --skill mobile-bootstrap-offcanvas-navbar
Clone the repo
git clone --depth 1 https://github.com/mhrsdev/AI-Agent-Skills-Library

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 mobile-bootstrap-offcanvas-navbar

README.md
[![agentmods](https://agentmods.dev/badge/skills/mhrsdev/ai-agent-skills-library/mobile-bootstrap-offcanvas-navbar/github.svg)](https://agentmods.dev/skills/mhrsdev/ai-agent-skills-library/mobile-bootstrap-offcanvas-navbar)
Your own site
<a href="https://agentmods.dev/skills/mhrsdev/ai-agent-skills-library/mobile-bootstrap-offcanvas-navbar"><img src="https://agentmods.dev/badge/skills/mhrsdev/ai-agent-skills-library/mobile-bootstrap-offcanvas-navbar/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 mobile-bootstrap-offcanvas-navbar

Your own site · 80×15
<a href="https://agentmods.dev/skills/mhrsdev/ai-agent-skills-library/mobile-bootstrap-offcanvas-navbar"><img src="https://agentmods.dev/badge/skills/mhrsdev/ai-agent-skills-library/mobile-bootstrap-offcanvas-navbar.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 288 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 $0.00034 $0.00288
Opus 5 $0.00017 $0.00144
Sonnet 5 $0.00007 $0.00058
Haiku 4.5 $0.00003 $0.00029

Measured 11d ago against content hash ff2976748f9c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

mobile-bootstrap-offcanvas-navbar 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 11d 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.

organized-skills/responsive-mobile-navigation/mobile-bootstrap-offcanvas-navbar/SKILL.md · 34 lines

What it actually says

Mobile Bootstrap Offcanvas Navbar

Use this skill for mobile-first navbars, collapse panels, and offcanvas drawers inspired by twbs/bootstrap.

Primary source:

Focus areas:

  • Navbar collapse state.
  • Offcanvas drawer layout and transitions.
  • aria-expanded and collapsed class synchronization.
  • Mobile menu overflow when the menu is taller than the viewport.
  • Modal/offcanvas scroll behavior on iOS.

Checklist:

  • Toggle with a real button.
  • Keep aria-expanded, hidden state, and visual class state aligned.
  • Make long collapsed menus scrollable with max-height and overflow-y: auto.
  • Use fixed positioning for offcanvas panels and a separate backdrop layer.
  • Lock background scroll when offcanvas is modal.
  • Test with many menu items, landscape mobile, and small 320px screens.

Common fixes:

  • If an expanded navbar cannot scroll on mobile, constrain its height and enable vertical overflow.
  • If the body scrolls behind offcanvas, add modal-style scroll lock.
  • If state desynchronizes after resizing, reset mobile collapse state at desktop breakpoints.
Files

What ships with it

1 file 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.

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. 11d ago First seen · 34 lines · 34 tokens per session scan A ff2976748f9c

Subscribe to this mod's changes

mobile-bootstrap-offcanvas-navbar is a skill published in the GitHub repository mhrsdev/AI-Agent-Skills-Library (6 stars, last pushed 2mo ago), licensed MIT. It adds 34 tokens to every session and 288 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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