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-fastbootnpx skills add hyperb1iss/hyperdroid-skill --skill android-fastbootgit 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 | $0.00079 | $0.01810 |
| Opus 5 | $0.00039 | $0.00905 |
| Sonnet 5 | $0.00016 | $0.00362 |
| Haiku 4.5 | $0.00008 | $0.00181 |
Grade A, and why
android-fastboot 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 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.
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 — 321 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Android Fastboot Operations
⚠️ DANGER ZONE - Fastboot operations write directly to device partitions. Wrong images or interrupted operations can brick devices. Always verify:
- Correct device (check
fastboot getvar product) - Correct images for exact device model
- Bootloader is unlocked (for flashing)
- Battery > 50%
Entering Fastboot Mode
# From ADB (device running)
adb reboot bootloader
# Hardware buttons (most devices)
# Power + Volume Down (hold until fastboot screen)
Basic Commands
fastboot devices # List connected devices
fastboot getvar all # All device variables
fastboot reboot # Reboot to system
fastboot reboot bootloader # Stay in bootloader
fastboot reboot recovery # Boot to recovery
fastboot reboot fastboot # Boot to fastbootd (Android 10+)
Check Before Flashing
# ALWAYS run these first
fastboot devices # Verify connection
fastboot getvar product # Verify device model
fastboot getvar unlocked # Must be "yes" for flashing
fastboot getvar current-slot # Know current A/B slot
fastboot getvar battery-level # Should be > 50
Bootloader Unlocking
Google Pixel
# 1. Enable OEM unlocking in Developer Options
# 2. Boot to fastboot
adb reboot bootloader
# 3. Unlock
fastboot flashing unlock
# 4. Confirm on device with volume keys + power
# WARNING: This wipes all data!
Other Manufacturers
| Brand | Process |
|---|---|
| OnePlus | fastboot oem unlock |
| Xiaomi | Mi Unlock Tool (waiting period) |
| Samsung | Uses Odin, not fastboot |
| Motorola | Request code from website, fastboot oem unlock <code> |
| Sony | Request code from website |
What ships with it
1 file 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 · 321 lines · 79 tokens per session scan A d9fb36351909
android-fastboot is a skill published in the GitHub repository hyperb1iss/hyperdroid-skill (35 stars, last pushed 7mo ago), licensed MIT. It adds 79 tokens to every session and 1,810 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.
Other skills, from other repositories
dagger-hilt-expert
Expert guidance for Dagger and Hilt dependency injection in Android. Use when implementing DI, creating modules, configuring scopes, optimizing performance, testing with Hilt, setting up multi-module architecture, using assisted injection, or debugging DI issues. Triggers on "dagger", "hilt", "dependency injection"…
android-startup-optimizer
Expert Android app startup performance optimization skill. Use when analyzing or improving Android app cold start, warm start, or hot start times. Applies to projects using Jetpack Compose, Hilt/Dagger, ContentProviders, ad SDKs, or any Android initialization bottlenecks. Triggers on phrases like "startup time", "app…
compose-m3-theme-expert
Architect, implement, and optimize Material 3 custom themes in Jetpack Compose. Use this skill whenever the user mentions Android UI design systems, MaterialTheme overrides, dynamic wallpaper-derived colors, custom CompositionLocal providers (like NiaTheme gradients or background tokens), theme recomposition…
android-amplitude-sdk-expert
Expert guide for Amplitude Android SDK integration (Kotlin/Java). Use when tracking events, configuring autocapture, managing user identity, configuring batching or EU residency, implementing custom Enrichment/Destination plugins, migrating from legacy com.amplitude:android-sdk to modern…
android-leak-expert
Expert guide for detecting, profiling, and resolving memory leaks in Android apps (Java, Kotlin, Compose, JNI). Use when analyzing memory usage, profiling heap dumps, fixing out-of-memory (OOM) issues, checking Compose lifecycle flow collections, resolving WebView/Handler leaks, or configuring LeakCanary. Triggers…
compose-component-expert
Expert guide for designing, building, and optimizing reusable Jetpack Compose components. Applies 2026 best practices, Style API, slot APIs, Modifier.Node, strong skipping mode, recomposition optimization, and Detekt/Ktlint rules validation. Trigger this skill whenever the user asks about Jetpack Compose component…