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 Drjacky/claude-android-ninja --skill claude-android-ninjagit clone --depth 1 https://github.com/Drjacky/claude-android-ninjaWrote 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/drjacky/claude-android-ninja/claude-android-ninja)<a href="https://agentmods.dev/skills/drjacky/claude-android-ninja/claude-android-ninja"><img src="https://agentmods.dev/badge/skills/drjacky/claude-android-ninja/claude-android-ninja/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/drjacky/claude-android-ninja/claude-android-ninja"><img src="https://agentmods.dev/badge/skills/drjacky/claude-android-ninja/claude-android-ninja.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00123 | $0.03183 |
| Opus 5.5 | $0.00049 | $0.01273 |
| Sonnet 5.5 | $0.00025 | $0.00637 |
| Haiku 4.5 | $0.00012 | $0.00318 |
Grade A, and why
claude-android-ninja 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 26d 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.
How it starts
The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Android Kotlin Compose Development
Context ladder (smaller load first; full references stay complete):
- This file (
SKILL.md) - routing, stop rules, examples. references/*-quick.mdwhen listed below - required/forbidden + section links (~40 lines).- One target section in the full
references/*.md- code samples and checklists only. - INDEX-sections.md - anchor dump only when quick routing is insufficient.
Forbidden: load INDEX-sections.md or an entire multi-thousand-line reference when one section or a quick file covers the task.
Route tasks through the Quick Reference table. When no row matches, or the task needs greenfield bootstrap: workflows.md. Full file list: INDEX.md.
Required:
- Existing project: read
settings.gradle.kts,gradle/libs.versions.toml, and theappmodule build file before copying fromassets/- dependencies.md, modularization.md. Stack migrations: migration.md. - Greenfield: workflows.md → "Creating a new project?"
- After module, DI, navigation, Room schema, or AGP/Kotlin/KSP changes:
./gradlew helpthen:app:assembleDebug(use the real app module name) - gradle-setup.md.
Outside-repo stop rules (do not substitute repo edits): Play upload, tracks, rollout, versionCode - android-ci-cd.md; Play Integrity prerequisites (Console/Cloud setup) - android-security-quick.md; production adb install / pm clear - testing.md.
Quick Reference
Rare or niche topics not listed here are in INDEX.md (complete file list).
What ships with it
60 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.
- assets/convention/AndroidApplicationBaselineProfileConventionPlugin.kt 980 B
- assets/convention/AndroidApplicationComposeConventionPlugin.kt 778 B
- assets/convention/AndroidApplicationConventionPlugin.kt 1.3 KB
- assets/convention/AndroidApplicationJacocoConventionPlugin.kt 945 B
- assets/convention/AndroidFeatureConventionPlugin.kt 2.3 KB
- assets/convention/AndroidLibraryComposeConventionPlugin.kt 765 B
- assets/convention/AndroidLibraryConventionPlugin.kt 2.2 KB
- assets/convention/AndroidLibraryJacocoConventionPlugin.kt 925 B
- assets/convention/AndroidLintConventionPlugin.kt 1.2 KB
- assets/convention/AndroidRoomConventionPlugin.kt 1.3 KB
- assets/convention/AndroidTestConventionPlugin.kt 952 B
- assets/convention/build.gradle.kts 3.6 KB
- assets/convention/config/AndroidCompose.kt 2.3 KB
- assets/convention/config/AndroidInstrumentationTest.kt 613 B
- assets/convention/config/GradleManagedDevices.kt 1.7 KB
- assets/convention/config/Jacoco.kt 5.3 KB
- assets/convention/config/KotlinAndroid.kt 3.7 KB
- assets/convention/config/PrintApksTask.kt 955 B
- assets/convention/config/ProjectExtensions.kt 419 B
- assets/convention/DetektConventionPlugin.kt 2.1 KB
- assets/convention/FirebaseConventionPlugin.kt 1.8 KB
- assets/convention/HiltConventionPlugin.kt 1.0 KB
- assets/convention/JvmLibraryConventionPlugin.kt 746 B
- assets/convention/KotlinSerializationConventionPlugin.kt 676 B
- assets/convention/PlayVitalsReportingConventionPlugin.kt 745 B
- assets/convention/PlayVitalsReportingTask.kt 1.7 KB
- assets/convention/QUICK_REFERENCE.md 16 KB
- assets/convention/SentryConventionPlugin.kt 784 B
- assets/convention/SpotlessConventionPlugin.kt 1.7 KB
- assets/detekt.yml.template 16 KB
- assets/libs.versions.toml.template 17 KB
- assets/proguard-rules.pro.template 9.7 KB
- assets/settings.gradle.kts.template 4.2 KB
- references/android-accessibility-quick.md 2.5 KB
- references/android-accessibility.md 48 KB
- references/android-ci-cd.md 9.6 KB
- references/android-code-coverage.md 9.3 KB
- references/android-data-sync-quick.md 2.0 KB
- references/android-data-sync.md 75 KB
- references/android-debugging.md 17 KB
- references/android-graphics.md 36 KB
- references/android-i18n.md 28 KB
- references/android-media.md 12 KB
- references/android-navigation-quick.md 3.2 KB
- references/android-navigation.md 94 KB
- references/android-notifications.md 44 KB
- references/android-performance.md 65 KB
- references/android-permissions.md 36 KB
- references/android-security-quick.md 4.1 KB
- references/android-security.md 79 KB
- references/android-strictmode.md 8.6 KB
- references/android-theming-quick.md 2.8 KB
- references/android-theming.md 84 KB
- references/architecture.md 56 KB
- references/code-quality.md 11 KB
- references/compose-patterns-quick.md 4.0 KB
- references/compose-patterns.md 150 KB
- references/coroutines-patterns-quick.md 2.4 KB
- references/coroutines-patterns.md 60 KB
- references/crashlytics.md 23 KB
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.
- 26d ago Changed · +2 lines 49bca0db8d9a
- 1mo ago First seen · 119 lines · 123 tokens per session scan A 89e4fc779d7e
claude-android-ninja is a skill published in the GitHub repository Drjacky/claude-android-ninja (128 stars, last pushed 27d ago), licensed Apache-2.0. It adds 123 tokens to every session and 3,183 once invoked, about $0.0005 per session on Opus 5.5. 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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