Compose Multiplatform Patterns
monta-app/ocpp-emulator
Compose Multiplatform and Jetpack Compose patterns for KMP projects — state management, navigation, theming, performance, and platform-specific UI.
AOSP Part III — Native Foundation. An agent skill from aospbooks/aosp-internal-book.
Install Aosp Native Foundation
$ npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aospbooks/aosp-internal-book aosp-native-foundation --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aospbooks/aosp-internal-book.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agents/_content/parts/native-foundation .claude/skills/aosp-native-foundation && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "aosp-native-foundation" agent skill from https://github.com/aospbooks/aosp-internal-book/tree/main/agents/_content/parts/native-foundation into .claude/skills/aosp-native-foundation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aosp-native-foundation", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aospbooks/aosp-internal-book/tree/main/agents/_content/parts/native-foundationType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aospbooks/aosp-internal-book aosp-native-foundation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aospbooks/aosp-internal-book.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agents/_content/parts/native-foundation .agents/skills/aosp-native-foundation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "aosp-native-foundation" agent skill from https://github.com/aospbooks/aosp-internal-book/tree/main/agents/_content/parts/native-foundation into .agents/skills/aosp-native-foundation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aosp-native-foundation", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aospbooks/aosp-internal-book aosp-native-foundation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aospbooks/aosp-internal-book.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agents/_content/parts/native-foundation .cursor/skills/aosp-native-foundation && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "aosp-native-foundation" agent skill from https://github.com/aospbooks/aosp-internal-book/tree/main/agents/_content/parts/native-foundation into .cursor/skills/aosp-native-foundation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aosp-native-foundation", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aospbooks/aosp-internal-book.git --path agents/_content/parts/native-foundation--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aospbooks/aosp-internal-book aosp-native-foundation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aospbooks/aosp-internal-book.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agents/_content/parts/native-foundation .gemini/skills/aosp-native-foundation && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "aosp-native-foundation" agent skill from https://github.com/aospbooks/aosp-internal-book/tree/main/agents/_content/parts/native-foundation into .gemini/skills/aosp-native-foundation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aosp-native-foundation", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aospbooks/aosp-internal-book aosp-native-foundationInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aospbooks/aosp-internal-book.git skills-src && mkdir -p .github/skills && cp -r skills-src/agents/_content/parts/native-foundation .github/skills/aosp-native-foundation && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "aosp-native-foundation" agent skill from https://github.com/aospbooks/aosp-internal-book/tree/main/agents/_content/parts/native-foundation into .github/skills/aosp-native-foundation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aosp-native-foundation", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aospbooks/aosp-internal-book aosp-native-foundation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aospbooks/aosp-internal-book.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agents/_content/parts/native-foundation .opencode/skills/aosp-native-foundation && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "aosp-native-foundation" agent skill from https://github.com/aospbooks/aosp-internal-book/tree/main/agents/_content/parts/native-foundation into .opencode/skills/aosp-native-foundation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aosp-native-foundation", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
aosp-native-foundation- GitHub stars
- 139
- Token cost
- ~507 tokens
- SKILL.md length
- 149 words
- Files
- 1
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
AOSP Part III — Native Foundation. An agent skill from aospbooks/aosp-internal-book.
- Reasoning about Bionic (Androids libc/libm/libdl) and the dynamic linker
- SKILL.md covers Chapters in this Part and When to load which chapter
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Linker namespaces
What it does
Aosp Native Foundation is an agent skill from aospbooks/aosp-internal-book. AOSP Part III — Native Foundation. Use when reasoning about Bionic (Android's libc/libm/libdl) and the dynamic linker, linker namespaces, GWP-ASan / MTE, memory management (jemalloc/scudo, ashmem/memfd, ION/dma-buf, lmkd, PSI), Binder IPC (transactions, parcels, one-copy semantics, AIDL/HIDL/NDK Binder, servicemanager, threadpool, death recipients), the HAL (Treble, HIDL→AIDL HAL migration, vendor/system split, hwservicemanager, VINTF), or the NDK (libandroid, JNI bindings, ABI compatibility). Chapters 7–11.
Its SKILL.md is about 510 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Mobile. It works with Android. The repository describes itself as: The book introduces the internal of AOSP. The licence is Apache-2.0.
When your agent uses it
- Reasoning about Bionic (Androids libc/libm/libdl) and the dynamic linker
- Linker namespaces
- Memory management (jemalloc/scudo
- Binder IPC (transactions
Example prompts
- “/aosp-native-foundation”
What it can do on your machine
Read from SKILL.md and the folder at commit fc0b48b. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Aosp Native Foundation loads about 507 tokens when it runs. Until then it costs about 134 tokens; SKILL.md has 149 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from aospbooks/aosp-internal-book at commit fc0b48b, republished under its Apache-2.0 licence (© aospbooks). 149 words, ~507 tokens.
Download SKILL.mdSave it as
.claude/skills/aosp-native-foundation/SKILL.md (or your agent's skills folder).- name
- aosp-native-foundation
- description
- AOSP Part III — Native Foundation. Use when reasoning about Bionic (Android's libc/libm/libdl) and the dynamic linker, linker namespaces, GWP-ASan / MTE, memory management (jemalloc/scudo, ashmem/memfd, ION/dma-buf, lmkd, PSI), Binder IPC (transactions, parcels, one-copy semantics, AIDL/HIDL/NDK Binder, servicemanager, threadpool, death recipients), the HAL (Treble, HIDL→AIDL HAL migration, vendor/system split, hwservicemanager, VINTF), or the NDK (libandroid, JNI bindings, ABI compatibility). Chapters 7–11.
- metadata.author
- utzcoz
- metadata.version
- 2026.06.24
- metadata.last-updated
- 2026-10-05
AOSP Part III — Native Foundation
The C/C++ layer that everything above sits on: libc, the dynamic linker, memory infrastructure, the IPC backbone (Binder), the vendor/system contract (HAL/Treble), and the NDK that exposes a subset of native APIs to apps.
Chapters in this Part
07-bionic-and-linker.md— Bionic libc/libm/libdl, linker64, namespaces, GWP-ASan / MTE, app_process08-memory-management.md— jemalloc/scudo, ashmem/memfd, ION/dma-buf, lmkd, PSI, kswapd, OOM adjustments09-binder-ipc.md— /dev/binder, parcels, transactions, one-copy semantics, AIDL/HIDL/NDK Binder, servicemanager, threadpool, death recipients10-hal.md— Treble, HIDL→AIDL HAL migration, vendor/system partition split, hwservicemanager vs. servicemanager, VINTF11-ndk.md— native APIs exposed to apps, libandroid, JNI bindings, ABI compatibility, sysroot layout
When to load which chapter
- Question mentions libc, linker, namespaces, MTE, GWP-ASan, app_process →
07-bionic-and-linker.md - Question mentions LMK, jemalloc, scudo, ION, dma-buf, PSI, OOM →
08-memory-management.md - Question mentions Binder, parcels, AIDL, HIDL, NDK Binder, servicemanager, one-copy →
09-binder-ipc.md - Question mentions Treble, HAL, VINTF, vendor partition, hwservicemanager →
10-hal.md - Question mentions NDK, libandroid, JNI, sysroot, ABI →
11-ndk.md
© aospbooks, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in agents/_content/parts/native-foundation of aospbooks/aosp-internal-book.
Open the folder on GitHubat commit fc0b48b
Compare with similar skills
Aosp Native Foundation next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Aosp Native Foundation this skillaospbooks/aosp-internal-book | 139 | — | ~507 | Automated safety check: Pass | Apache-2.0 | |
| Compose Multiplatform Patternsmonta-app/ocpp-emulator | 180 | 5 repos | ~2k | Automated safety check: Pass | Apache-2.0 | |
| Phone HarnessShawnPana/phone-harness | 3.2k | — | ~4.3k | Automated safety check: Pass | MIT | |
| Stylesarindamxd/camerax-android | 132 | 4 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Verified Emailarindamxd/camerax-android | 132 | 4 repos | ~4.7k | Automated safety check: Pass | Apache-2.0 | |
| Argent Metro Debuggerbbplayer-app/BBPlayer | 1.2k | — | ~3.4k | Automated safety check: Pass | MIT |
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Styles
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A skill your agent uses to integrate the Jetpack Compose Styles API into an Android project.
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Provides a complete workflow for implementing verified email retrieval on Android Credential Manager API.
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All 17 skills in this repoBook Writer
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Patterns for writing technical book chapters in Markdown with Mermaid diagrams, served via ProperDocs (a MkDocs fork).
Aosp Version Diff
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Compare two AOSP releases (e.g. An agent skill from aospbooks/aosp-internal-book.
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Aosp Native Services And Media
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AOSP Part IV — Native Services & Media. An agent skill from aospbooks/aosp-internal-book.
Related
Works with
Categories
Questions about Aosp Native Foundation
What does Aosp Native Foundation do?
AOSP Part III — Native Foundation. An agent skill from aospbooks/aosp-internal-book. Aosp Native Foundation is an agent skill from aospbooks/aosp-internal-book. AOSP Part III — Native Foundation.
When should I use Aosp Native Foundation?
Aosp Native Foundation fits situations like: reasoning about Bionic (Androids libc/libm/libdl) and the dynamic linker; linker namespaces; memory management (jemalloc/scudo; binder IPC (transactions.
How do I install Aosp Native Foundation in Claude Code?
Run `npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a claude-code`. Or copy the skill folder (agents/_content/parts/native-foundation in aospbooks/aosp-internal-book) into .claude/skills/aosp-native-foundation in your project. Claude Code loads it when a task matches its description.
How do I install Aosp Native Foundation in Codex?
Run `npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a codex`. Or copy the skill folder (agents/_content/parts/native-foundation in aospbooks/aosp-internal-book) into .agents/skills/aosp-native-foundation in your project. Codex loads it when a task matches its description.
Can I use Aosp Native Foundation in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aospbooks/aosp-internal-book --skill aosp-native-foundation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/aosp-native-foundation, .gemini/skills/aosp-native-foundation, .github/skills/aosp-native-foundation and .opencode/skills/aosp-native-foundation in your project.
What does Aosp Native Foundation need to run?
SKILL.md names no scripts, command-line tools or credentials: Aosp Native Foundation is instructions for the agent only.
Does Aosp Native Foundation access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Aosp Native Foundation safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Aosp Native Foundation use?
Aosp Native Foundation is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Aosp Native Foundation use?
About 507 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Aosp Native Foundation?
Skills that share tags, products or a category with Aosp Native Foundation: Compose Multiplatform Patterns (monta-app/ocpp-emulator, 180 stars), Phone Harness (ShawnPana/phone-harness, 3.2k stars), Styles (arindamxd/camerax-android, 132 stars) and Verified Email (arindamxd/camerax-android, 132 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Aosp Native Foundation?
aospbooks (a GitHub organization) maintains it in aospbooks/aosp-internal-book, which has 139 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 5, 2026.
Source: aospbooks/aosp-internal-book on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.