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 aospbooks/aosp-internal-book --skill system-appsgit clone --depth 1 https://github.com/aospbooks/aosp-internal-bookWrote 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/aospbooks/aosp-internal-book/system-apps)<a href="https://agentmods.dev/skills/aospbooks/aosp-internal-book/system-apps"><img src="https://agentmods.dev/badge/skills/aospbooks/aosp-internal-book/system-apps/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/aospbooks/aosp-internal-book/system-apps"><img src="https://agentmods.dev/badge/skills/aospbooks/aosp-internal-book/system-apps.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 | $0.00085 | $0.00327 |
| Opus 5 | $0.00043 | $0.00163 |
| Sonnet 5 | $0.00017 | $0.00065 |
| Haiku 4.5 | $0.00009 | $0.00033 |
Grade A, and why
aosp-system-apps 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- aosp-system-apps — 100% identical, 0 lines differ
What it actually says
AOSP Part XI — System Apps
The three privileged apps every AOSP build ships with: SystemUI, Launcher3, and Settings.
Chapters in this Part
48-systemui.md— SystemUI process, status bar, notification shade, keyguard, Quick Settings, Monet/dynamic color49-launcher3.md— Launcher3, model loader, Recents/Overview, gesture nav, all-apps, predictions, work profile50-settings-app.md— Settings app structure, SettingsProvider, SettingsLib, search index, slice surface
When to load which chapter
- Question mentions SystemUI, status bar, notification shade, keyguard, QS, Monet →
48-systemui.md - Question mentions Launcher3, Recents, Overview, gesture nav, all-apps →
49-launcher3.md - Question mentions Settings app, SettingsProvider, SettingsLib, slice →
50-settings-app.md
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 · 31 lines · 85 tokens per session scan A 5e61296f7db7
aosp-system-apps is a skill published in the GitHub repository aospbooks/aosp-internal-book (131 stars, last pushed 10d ago), licensed Apache-2.0. It adds 85 tokens to every session and 327 once invoked, about $0.0004 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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