Android Maps Ktx
googlemaps/android-maps-ktx
Provides idiomatic Kotlin extension (KTX) patterns, reactive Flow event streams, and multi-subscriber shareIn rules for Google Maps SDK for Android and its Utility Library.
A skill your agent uses when needing to fetch Android source code — AOSP platform internals (@hide APIs, framework classes, system services) or AndroidX/Jetpack library source and samples.
Install Android Source Search
$ npx skills add rcosteira79/android-skills --skill android-source-search -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rcosteira79/android-skills android-source-search --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/rcosteira79/android-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/android-skills/skills/android-source-search .claude/skills/android-source-search && 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 "android-source-search" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-source-search into .claude/skills/android-source-search/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-source-search", 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/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-source-searchType 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 rcosteira79/android-skills --skill android-source-search -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rcosteira79/android-skills android-source-search --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/android-skills/skills/android-source-search .agents/skills/android-source-search && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "android-source-search" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-source-search into .agents/skills/android-source-search/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-source-search", 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 rcosteira79/android-skills --skill android-source-search -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rcosteira79/android-skills android-source-search --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/android-skills/skills/android-source-search .cursor/skills/android-source-search && 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 "android-source-search" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-source-search into .cursor/skills/android-source-search/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-source-search", 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/rcosteira79/android-skills.git --path plugins/android-skills/skills/android-source-search--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 rcosteira79/android-skills --skill android-source-search -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rcosteira79/android-skills android-source-search --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/android-skills/skills/android-source-search .gemini/skills/android-source-search && 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 "android-source-search" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-source-search into .gemini/skills/android-source-search/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-source-search", 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 rcosteira79/android-skills android-source-searchInstalls 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 rcosteira79/android-skills --skill android-source-search -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/android-skills/skills/android-source-search .github/skills/android-source-search && 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 "android-source-search" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-source-search into .github/skills/android-source-search/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-source-search", 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 rcosteira79/android-skills --skill android-source-search -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rcosteira79/android-skills android-source-search --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/android-skills/skills/android-source-search .opencode/skills/android-source-search && 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 "android-source-search" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-source-search into .opencode/skills/android-source-search/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-source-search", 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
android-source-search- GitHub stars
- 151
- Token cost
- ~784 tokens
- SKILL.md length
- 257 words
- Files
- 1
- Skills in repo
- 21
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when needing to fetch Android source code — AOSP platform internals (@hide APIs, framework classes, system services) or AndroidX/Jetpack library source and samples.
- Needing to fetch Android source code — AOSP platform internals (@hide APIs
- SKILL.md covers Preferred: the android-sources…, Fallback: WebFetch + gh and When the path is unknown
- Calls gh; reaches android.googlesource.com and raw.githubusercontent.com
- Framework classes
What it does
Android Source Search is an agent skill from rcosteira79/android-skills. Use when needing to fetch Android source code — AOSP platform internals (@hide APIs, framework classes, system services) or AndroidX/Jetpack library source and samples. Also use when public docs are insufficient to complete a task and implementation details must be read directly from source.
Its SKILL.md is about 780 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, Java, GitHub and Kotlin. The repository describes itself as: Claude Code skills for Android & KMP development. The licence is MIT.
When your agent uses it
- Needing to fetch Android source code — AOSP platform internals (@hide APIs
- Framework classes
- System services)
- AndroidX/Jetpack library source and samples
Example prompts
- “/android-source-search”
What it can do on your machine
Read from SKILL.md and the folder at commit 0f9af5a. 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
Shell commands in SKILL.md call:
gh
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
android.googlesource.comraw.githubusercontent.comcs.android.com
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
Android Source Search loads about 784 tokens when it runs. Until then it costs about 79 tokens; SKILL.md has 257 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 rcosteira79/android-skills at commit 0f9af5a, republished under its MIT licence (© rcosteira79). 257 words, ~784 tokens.
Download SKILL.mdSave it as
.claude/skills/android-source-search/SKILL.md (or your agent's skills folder).- name
- android-source-search
- description
- Use when needing to fetch Android source code — AOSP platform internals (@hide APIs, framework classes, system services) or AndroidX/Jetpack library source and samples. Also use when public docs are insufficient to complete a task and implementation details must be read directly from source.
Android Source Search
Two source trees, two access strategies. AOSP lives on android.googlesource.com (Gitiles); AndroidX lives on GitHub. cs.android.com blocks automated fetching — it's a human-browse JS SPA only (never WebFetch it).
Preferred: the android-sources MCP
If mcp__android-sources__* tools are available, always prefer them over WebFetch/gh — local source, sub-10ms lookups:
| Goal | MCP tool |
|---|---|
| Find a class by name/pattern | search_classes (glob, e.g. *ViewModel*) |
| Read full class / a method / its members | lookup_class / lookup_method / list_class_members |
| Class hierarchy | get_class_hierarchy |
| Search text/regex across sources | search_in_source |
| List AndroidX artifact versions | list_available_versions |
| Definition / references / type info (LSP) | goto_definition / find_references / get_type_info |
Fall back to the WebFetch/gh strategies below only when the MCP tools aren't available.
Fallback: WebFetch + gh
AOSP (framework internals, @hide APIs, internal constants, default attr values) → Gitiles. Raw text is base64-encoded and smaller:
https://android.googlesource.com/platform/frameworks/base/+/refs/heads/main/{path}?format=TEXTUse refs/heads/main (the active default branch), or a tag like android-14.0.0_r74 for a specific API level. Key repos: platform/frameworks/base (core/java/android/ → View/Activity/Context; services/core/java/ → system services; core/res/ → default attrs/styles), platform/libcore (ojluni/src/main/java/ → Java core).
AndroidX (androidx.* source + samples) → GitHub. File content via raw.githubusercontent.com; directory listings via gh api:
https://raw.githubusercontent.com/androidx/androidx/androidx-main/{path}
gh api repos/androidx/androidx/contents/{path} --jq '.[].name'Samples live next to the source as {ClassName}Samples.kt under a samples/ subpath. Key path prefixes: Compose UI compose/ui/ui/src/commonMain/kotlin/androidx/compose/ui/, Foundation compose/foundation/foundation/src/commonMain/kotlin/, Animation compose/animation/animation/src/commonMain/kotlin/. AndroidX is mirrored on Gitiles (platform/frameworks/support, androidx-main), but the GitHub layout is the canonical, better-documented path for androidx.* — prefer it.
When the path is unknown
Use cs.android.com as a human search UI (not WebFetch — JS SPA) to locate the class/file, then fetch via Gitiles (AOSP) or raw.githubusercontent.com / gh api (AndroidX):
https://cs.android.com/search?q=ClassName+methodName&ss=android # &ss=androidx for AndroidXBoth trees change frequently — always fetch current source rather than trusting remembered line numbers.
© rcosteira79, MIT. 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 plugins/android-skills/skills/android-source-search of rcosteira79/android-skills.
Open the folder on GitHubat commit 0f9af5a
Compare with similar skills
Android Source Search 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 |
|---|---|---|---|---|---|---|
| Android Source Search this skillrcosteira79/android-skills | 151 | — | ~784 | Automated safety check: Pass | MIT | |
| Android Maps Ktxgooglemaps/android-maps-ktx | 360 | — | ~897 | Automated safety check: Pass | Apache-2.0 | |
| Guided PR Fixupalexvanyo/composelife | 267 | — | ~1k | Automated safety check: Pass | Apache-2.0 | |
| Android Audio E2Ehyochan/react-native-nitro-sound | 961 | — | ~814 | Automated safety check: Pass | MIT | |
| Project Binding Adapter From SourceafkT/DevUtils | 1.6k | — | ~1.6k | Automated safety check: Pass | Apache-2.0 | |
| Pre Push Guardqianyumeng0228/ShizukuX | 115 | — | ~584 | Automated safety check: Pass | Apache-2.0 |
Similar skills
Guided PR Fixup
alexvanyo/composelife
Performs a guided fixup of a given GitHub PR. An agent skill from alexvanyo/composelife.
Android Audio E2E
hyochan/react-native-nitro-sound
Build and run device-backed Android end-to-end checks for react-native-nitro-sound permissions, recording, playback, listeners, pause/resume, seek, speed, audio focus, lifecycle behavior, and rapid…
Project Binding Adapter From Source
afkT/DevUtils
根据用户给出的 Java/Kotlin 工具类或 View 相关源码，设计并实现 androidx.databinding.BindingAdapter。
Pre Push Guard
qianyumeng0228/ShizukuX
ShizukuX codebase integrity checks. An agent skill from qianyumeng0228/ShizukuX.
Kotlin
margelo/react-native-skills
Design, implement, and review Kotlin and Android APIs. An agent skill from margelo/react-native-skills.
More from rcosteira79/android-skills
All 21 skills in this repoJetpack Compose and Multiplatform Expert
rcosteira79/android-skills
Guides writing correct, performant Compose and Compose Multiplatform UI across Android, desktop, iOS and web, from state and animation to design-to-code and crash fixes.
Kotlin Multiplatform Boundaries
rcosteira79/android-skills
Helps choose how common Kotlin Multiplatform code reaches platform APIs: expect/actual, a common interface with platform bindings, or separate platform screens.
Android Data Layer and Room in KMP
rcosteira79/android-skills
Sets out the repository pattern's error-propagation model for Android and Kotlin Multiplatform, plus the Room setup for commonMain.
Android Debugging
rcosteira79/android-skills
Android and KMP debugging techniques for crashes, ANRs, memory leaks, R8 traces, Gradle failures and Compose recomposition, built on finding the root cause first.
Android and KMP Baseline
rcosteira79/android-skills
Sets house defaults for Android and Kotlin Multiplatform work and routes to the right specialized skill for Compose, networking, testing or build tooling.
Android Gradle Build Logic
rcosteira79/android-skills
Sets up Android Gradle convention plugins in a build-logic composite build, including the version catalog wiring and shared configuration that are easy to get wrong.
Related
Categories
Questions about Android Source Search
What does Android Source Search do?
A skill your agent uses when needing to fetch Android source code — AOSP platform internals (@hide APIs, framework classes, system services) or AndroidX/Jetpack library source and samples. Android Source Search is an agent skill from rcosteira79/android-skills. Use when needing to fetch Android source code — AOSP platform internals (@hide APIs, framework classes, system services) or AndroidX/Jetpack library source and samples.
When should I use Android Source Search?
Android Source Search fits situations like: needing to fetch Android source code — AOSP platform internals (@hide APIs; framework classes; system services); androidX/Jetpack library source and samples.
How do I install Android Source Search in Claude Code?
Run `npx skills add rcosteira79/android-skills --skill android-source-search -a claude-code`. Or copy the skill folder (plugins/android-skills/skills/android-source-search in rcosteira79/android-skills) into .claude/skills/android-source-search in your project. Claude Code loads it when a task matches its description.
How do I install Android Source Search in Codex?
Run `npx skills add rcosteira79/android-skills --skill android-source-search -a codex`. Or copy the skill folder (plugins/android-skills/skills/android-source-search in rcosteira79/android-skills) into .agents/skills/android-source-search in your project. Codex loads it when a task matches its description.
Can I use Android Source Search 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 rcosteira79/android-skills --skill android-source-search -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/android-source-search, .gemini/skills/android-source-search, .github/skills/android-source-search and .opencode/skills/android-source-search in your project.
What does Android Source Search need to run?
Going by SKILL.md and its folder, Android Source Search needs the command-line tools its instructions call (gh).
Does Android Source Search access the network?
SKILL.md names 3 domains. In commands or code: android.googlesource.com, raw.githubusercontent.com and cs.android.com; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.
Is Android Source Search 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 Android Source Search use?
Android Source Search is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Android Source Search use?
About 784 tokens (SKILL.md is roughly 3.1k 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 Android Source Search?
Skills that share tags, products or a category with Android Source Search: Android Maps Ktx (googlemaps/android-maps-ktx, 360 stars), Guided PR Fixup (alexvanyo/composelife, 267 stars), Android Audio E2E (hyochan/react-native-nitro-sound, 961 stars) and Project Binding Adapter From Source (afkT/DevUtils, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Android Source Search?
rcosteira79 (a GitHub user) maintains it in rcosteira79/android-skills, which has 151 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on September 19, 2026.
Source: rcosteira79/android-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.