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installing-and-managing-apps

installing-and-managing-apps is a skill for Claude Code, Codex from skydoves/android-testing-skills. It costs 248 tokens per session (4,275 once invoked), scanned A, original, Apache-2.0.

A guide for installing, inspecting, resetting, and managing Android apps from a computer. It uses Android’s command-line tools to work with app packages, permissions, versions, and stored data.

In plain words
What is it for?
Use it to install or reinstall APK files, list and locate apps, grant or revoke permissions, clear an app’s data between tests, and inspect installed packages.
Why use it?
It helps avoid common testing errors, such as stopping an app without removing its saved data. It also explains how to handle installation failures, version downgrades, and permission setup.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 318 +5 3mo ago A scan 248 tokens original Apache-2.0
View the source file skydoves/android-testing-skills
Install

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.

agentmods
npx agentmods add skills/skydoves/android-testing-skills/installing-and-managing-apps
Any agent
npx skills add skydoves/android-testing-skills --skill installing-and-managing-apps
Clone the repo
git clone --depth 1 https://github.com/skydoves/android-testing-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for installing-and-managing-apps

README.md
[![agentmods](https://agentmods.dev/badge/skills/skydoves/android-testing-skills/installing-and-managing-apps.svg)](https://agentmods.dev/skills/skydoves/android-testing-skills/installing-and-managing-apps)
Your own site
<a href="https://agentmods.dev/skills/skydoves/android-testing-skills/installing-and-managing-apps"><img src="https://agentmods.dev/badge/skills/skydoves/android-testing-skills/installing-and-managing-apps.svg" alt="Measured on agentmods" height="20"></a>
Per session 248 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,275 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00248 $0.04275
Opus 5 $0.00124 $0.02138
Sonnet 5 $0.00050 $0.00855
Haiku 4.5 $0.00025 $0.00428

Measured 6d ago against content hash 1b529cd427d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

installing-and-managing-apps 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 6d 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.

adb/apps/installing-and-managing-apps/SKILL.md · 273 lines

How it starts

The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Installing and Managing Apps — adb install and pm

App lifecycle from the host. adb install ships an APK; pm is the on-device PackageManager front-end that lists, paths, clears, enables/disables, and grants permissions. The most common subtle bug in test scaffolding is using am force-stop to "reset" an app between tests — that command kills the process but leaves SharedPreferences, the Room DB, and files on disk. The hermetic equivalent is pm clear.

When to use this skill

  • The user wants to install an APK from the host or push a debug build between every test run.
  • The user asks "how do I reset the app's state between tests?" or sees stale data carry over from one test to the next.
  • The user hits INSTALL_FAILED_VERSION_DOWNGRADE, INSTALL_FAILED_USER_RESTRICTED, or signature mismatch errors.
  • The user wants to grant all runtime permissions at install (-g), or grant/revoke a single permission post-install.
  • The user wants to list only third-party packages, find an APK on disk, or dump a Baseline Profile.

When NOT to use this skill

  • The user wants to actually run instrumented tests against the installed app — use ../../tests/running-instrumented-tests-via-adb/SKILL.md.
  • The user wants to choose a device or wait for boot — use ../../devices/connecting-to-devices/SKILL.md.
  • The user wants the architecture / environment / authentication picture — use ../../architecture/understanding-adb-architecture/SKILL.md.

Prerequisites

  • A connected device with state device (see ../../devices/connecting-to-devices/SKILL.md).
  • The APK(s) signed with a debug or release key the developer controls.
  • For test APKs, the manifest sets android:testOnly="true" (Gradle does this for androidTest builds) and install requires -t.
  • For runtime permissions, the device runs API 23+.

Workflow

  • 1. Install with the right flags. From pm install (and the adb install wrapper) options table:
    Flag Meaning
    -r "Reinstall an existing app, keeping its data." Required when the package is already installed; without it adb install returns INSTALL_FAILED_ALREADY_EXISTS. CI scripts MUST always pass -r for repeat runs.
    -d "Allow version code downgrade." Required when the new APK has a lower versionCode. Note: per adb help, restricted to debuggable packages on stock builds.
    -t "Allow test APKs to be installed." Required for any APK whose manifest carries android:testOnly="true" (i.e. all Gradle androidTest builds).
    -g "Grant all permissions listed in the app manifest." Best for hermetic test runs.
    -l Forward-lock the application (legacy DRM). Almost never needed today.
    -s Install on the SD card / external storage (when device supports it).
    --user <id> Install for a specific user profile. Default: all users. current resolves to the foreground user.
    `--install-location 0 1
    -f Install on internal system memory.
    -i <installer_pkg> Tag the install with an installer package name.
    --fastdeploy Patch-only install (only changed parts of the APK).
    --incremental / --no-incremental Streamed install; requires APK Signature Scheme v4 sidecar .idsig. --wait blocks until full APK is available.

Read the full file on GitHub · 273 lines

Changes

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.

  1. 6d ago First seen · 273 lines · 248 tokens per session scan A 1b529cd427d1

Subscribe to this mod's changes

installing-and-managing-apps is a skill published in the GitHub repository skydoves/android-testing-skills (318 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 248 tokens to every session and 4,275 once invoked, about $0.0012 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.

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