ukulele-companion: Skill for Cursor

.cursor/skills/android-bug-reproduce/SKILL.md

android-bug-reproduce is a skill for Cursor from baijum/ukulele-companion. It costs 67 tokens per session (1,429 once invoked), scanned A, original, MIT.

A workflow for reproducing and investigating Android bugs on an emulator, a virtual Android device, using ADB, the Android debugging tool.

In plain words
What is it for?
Use it to reproduce Android crashes or incorrect behaviour, seed required app data, inspect the UI, and gather evidence for debugging.
Why use it?
It provides a repeatable way to install the app, prepare test data, navigate the interface, collect logs, and capture screenshots.

Skill for Cursor

Written for Cursor: installed under .cursor/.

This is baijum/ukulele-companion's own configuration. It tells Cursor how to work on ukulele-companion itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ukulele-companion configures →

Reuse

Borrowing it

Nothing to install: this file belongs to baijum/ukulele-companion. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/baijum/ukulele-companion/main/.cursor/skills/android-bug-reproduce/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/baijum/ukulele-companion

Made for: Cursor.

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 android-bug-reproduce

README.md
[![agentmods](https://agentmods.dev/badge/skills/baijum/ukulele-companion/android-bug-reproduce/github.svg)](https://agentmods.dev/skills/baijum/ukulele-companion/android-bug-reproduce)
Your own site
<a href="https://agentmods.dev/skills/baijum/ukulele-companion/android-bug-reproduce"><img src="https://agentmods.dev/badge/skills/baijum/ukulele-companion/android-bug-reproduce/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.

agentmods 80×15 button for android-bug-reproduce

Your own site · 80×15
<a href="https://agentmods.dev/skills/baijum/ukulele-companion/android-bug-reproduce"><img src="https://agentmods.dev/badge/skills/baijum/ukulele-companion/android-bug-reproduce.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,429 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00067 $0.01429
Opus 5 $0.00034 $0.00714
Sonnet 5 $0.00013 $0.00286
Haiku 4.5 $0.00007 $0.00143

Measured 12d ago against content hash 5e557bfd5bb8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

android-bug-reproduce 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 12d 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.

.cursor/skills/android-bug-reproduce/SKILL.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Android Bug Reproduction on Emulator

Systematically reproduce and investigate Android bugs using ADB and the emulator.

Prerequisites

  • Android SDK installed with emulator and adb on PATH
  • At least one AVD configured (check with emulator -list-avds)
  • A debug APK (build with ./gradlew assembleDebug if needed)

Workflow

Step 1: Start the emulator

Check for a running emulator first:

adb devices

If none is running, start one:

emulator -list-avds
emulator -avd <avd_name> -no-snapshot-load &

Wait for the device to be ready:

adb wait-for-device
adb shell getprop sys.boot_completed  # should return "1"

Step 2: Install the debug APK

adb install -r app/build/outputs/apk/debug/app-debug.apk

Step 3: Seed test data (if needed)

For features that require existing data (e.g., chord sheets, favorites), seed SharedPreferences directly:

# Stop the app first
adb shell am force-stop com.baijum.ukufretboard

# Write test data to SharedPreferences
adb shell run-as com.baijum.ukufretboard sh -c 'cat > shared_prefs/<pref_file>.xml << '\''XMLEOF'\''
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<map>
    <!-- Your test data here -->
</map>
XMLEOF'

Common preference files:

File Contents
chord_sheets.xml Saved songs/chord sheets (JSON list)
favorites.xml Favorited chords
app_settings.xml App settings

Example — seed a chord sheet:

adb shell run-as com.baijum.ukufretboard sh -c 'cat > shared_prefs/chord_sheets.xml << '\''XMLEOF'\''
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<map>
    <string name="chord_sheets_json">[{"id":"test-1","title":"Test Song","artist":"Test","content":"[C]Hello [Am]world\nLine 2\nLine 3\nLine 4\nLine 5\nLine 6\nLine 7\nLine 8\nLine 9\nLine 10","strumPatternName":"","labels":[],"createdAt":1700000000000,"updatedAt":1700000000000}]</string>
</map>
XMLEOF'

Step 4: Launch the app and navigate

Read the full file on GitHub · 192 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. 12d ago First seen · 192 lines · 67 tokens per session scan A 5e557bfd5bb8

Subscribe to this mod's changes

android-bug-reproduce is a skill published in the GitHub repository baijum/ukulele-companion (14 stars, last pushed 2d ago), licensed MIT. It adds 67 tokens to every session and 1,429 once invoked, about $0.0003 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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