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 parhamb/design-skills --skill ux-navigationgit clone --depth 1 https://github.com/parhamb/design-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/parhamb/design-skills/ux-navigation)<a href="https://agentmods.dev/skills/parhamb/design-skills/ux-navigation"><img src="https://agentmods.dev/badge/skills/parhamb/design-skills/ux-navigation/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/parhamb/design-skills/ux-navigation"><img src="https://agentmods.dev/badge/skills/parhamb/design-skills/ux-navigation.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 | $0.00056 | $0.00731 |
| Opus 5 | $0.00028 | $0.00365 |
| Sonnet 5 | $0.00011 | $0.00146 |
| Haiku 4.5 | $0.00006 | $0.00073 |
Grade A, and why
ux-navigation 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.
How it starts
The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Navigation UX
Navigation is the skeleton of the app. When it is invisible and predictable, users feel in control. When it is broken or confusing, they leave.
Checklist
| Item | Guidance |
|---|---|
| Home accessible anywhere | Logo or home tab always returns to the root screen from anywhere in the app. |
| Persistent navigation | Tab bar or bottom navigation is visible on all primary screens. |
| Max 3 taps to content | Any piece of content is reachable in 3 taps or fewer from the home screen. |
| Current location indicator | The active tab is highlighted. Deep screens show a breadcrumb or clear title. |
| Android back button | Follows the back stack correctly. Never exits the app unexpectedly. |
| Back button on every screen | Every pushed screen has a back or close button in the top-left corner. |
| Logical flow | Navigation order matches the user's mental model and task sequence. |
| Deep link support | Every major screen has a URI scheme or Universal Link for direct access. |
| Tab bar badge counts | Unread count badges are accurate and clear when the content is viewed. |
| Scroll padding | Content at the bottom is padded above the tab bar height and safe area. |
| Status bar visible | Status bar is shown during normal app use. Hidden only in full-screen media. |
Navigation Patterns
Bottom tab bar (iOS): 3 to 5 items maximum. Icon and label together. Badge for notification counts. Not used for destructive actions.
Side drawer (Android): Suitable for apps with 5 or more top-level sections. Opened by a hamburger icon or a left-edge swipe. User avatar and name at the top.
Top navigation bar: Single screen title centered or left-aligned. Action icons on the right, maximum 2 visible. Back or close on the left.
Modal vs push: Push (drill-down) is for content that is part of the hierarchy. Modal (sheet or dialog) is for tasks that interrupt the main flow such as creating, editing, or confirming something. Never push where you should modal — it breaks the expected back stack behavior.
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 · 73 lines · 56 tokens per session scan A 3b59672d3b2c
ux-navigation is a skill published in the GitHub repository parhamb/design-skills (21 stars, last pushed 2mo ago), licensed MIT. It adds 56 tokens to every session and 731 once invoked, about $0.0003 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 2026-08-30.
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