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 agentmods add skills/hyperb1iss/hyperdroid-skill/android-buildnpx skills add hyperb1iss/hyperdroid-skill --skill android-buildgit clone --depth 1 https://github.com/hyperb1iss/hyperdroid-skillWhat 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 | $0.00072 | $0.02282 |
| Opus 5 | $0.00036 | $0.01141 |
| Sonnet 5 | $0.00014 | $0.00456 |
| Haiku 4.5 | $0.00007 | $0.00228 |
Grade C, and why
android-build scanned grade C with 2 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 2d 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf ~/.gradle/daemon Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/.bin/repo How it starts
The opening of the file, as written. The whole thing — 384 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Android Build Systems
This skill covers building Android apps via Gradle CLI and building custom ROMs via AOSP/LineageOS.
App Building (Gradle CLI)
Essential Commands
./gradlew tasks # List available tasks
./gradlew assembleDebug # Build debug APK
./gradlew assembleRelease # Build release APK
./gradlew installDebug # Build + install to device
./gradlew bundleRelease # Build AAB (App Bundle)
# APK output location
# app/build/outputs/apk/debug/app-debug.apk
# app/build/outputs/apk/release/app-release.apk
Build Variants
./gradlew assembleFreeDebug # Flavor + build type
./gradlew assemblePaidRelease
./gradlew assembleDebug --info # Verbose output
./gradlew assembleRelease -x test # Skip tests
Testing
./gradlew test # Unit tests
./gradlew testDebugUnitTest # Debug unit tests only
./gradlew connectedAndroidTest # Instrumented tests
./gradlew connectedCheck # All connected tests
# Run specific test
./gradlew test --tests "*.MyTestClass"
Linting & Analysis
./gradlew lint # Run lint
./gradlew lintDebug # Debug only (faster)
./gradlew ktlintCheck # Kotlin style (if configured)
./gradlew detekt # Detekt analysis (if configured)
Clean & Refresh
./gradlew clean # Clean build
./gradlew clean assembleDebug # Clean + build
./gradlew --refresh-dependencies # Force dependency refresh
./gradlew --stop # Stop Gradle daemon
Dependencies
./gradlew dependencies # All dependencies
./gradlew app:dependencies # Module dependencies
./gradlew dependencyInsight --dependency <name>
Signing
Debug keystore location:
- Linux:
~/.android/debug.keystore - macOS:
~/.android/debug.keystore - Windows:
C:\Users\<user>\.android\debug.keystore
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.
- 2d ago First seen · 384 lines · 72 tokens per session scan C a5ee8253c80a
android-build is a skill published in the GitHub repository hyperb1iss/hyperdroid-skill (35 stars, last pushed 7mo ago), licensed MIT. It adds 72 tokens to every session and 2,282 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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