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 HoangNguyen0403/agent-skills-standard --skill android-navigation-type-safegit clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standardWrote 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/hoangnguyen0403/agent-skills-standard/android-navigation-type-safe)<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/android-navigation-type-safe"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/android-navigation-type-safe/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/hoangnguyen0403/agent-skills-standard/android-navigation-type-safe"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/android-navigation-type-safe.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00044 | $0.00345 |
| Opus 5 | $0.00022 | $0.00172 |
| Sonnet 5 | $0.00009 | $0.00069 |
| Haiku 4.5 | $0.00004 | $0.00034 |
Grade A, and why
android-navigation-type-safe 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.
What it actually says
Android Navigation Standards
Priority: P0 (CRITICAL)
Implementation Guidelines
Type-Safe Navigation
- Library: Navigation Compose 2.8.0+.
- Routes: Use
@Serializableobjects/classes instead of String routes. - Arguments: No manual bundle parsing. Use
.toRoute<T>().
Structure
- Graphs: Split large apps into nested navigation graphs (
navigationextension functions). - Hoisting: Hoist navigation events out of Screens. Composable screens should accept callbacks (
onNavigateToX).
Anti-Patterns
- No String Routes: Use @Serializable typed objects/classes for destinations.
- No NavController in Composables: Hoist navigation events to screen-level callbacks.
References
Required route example
- For a product detail argument, define
@Serializable data class ProductDetail(val productId: Long)and navigate with the typed destination; retrieve it withtoRoute<ProductDetail>().
Canonical response anchors
When this skill applies, preserve the following domain terminology or equivalent concrete examples in the answer when relevant:
- Define ProductDetail(val productId
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.
- 9d ago First seen · 48 lines · 44 tokens per session scan A 43801b5b84ec
android-navigation-type-safe is a skill published in the GitHub repository HoangNguyen0403/agent-skills-standard (565 stars, last pushed 3d ago), licensed MIT. It adds 44 tokens to every session and 345 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 2026-09-03.
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