Amarok-Hider is an Android privacy tool that makes selected files and apps less visible by changing how the system identifies or displays them, rather than encrypting their contents. It is for people who want quick protection from casual snooping, with optional root-based features for deeper app hiding.
Borrowing it
Nothing to install: this file belongs to deltazefiro/Amarok-Hider. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/deltazefiro/Amarok-Hider/main/AGENTS.mdgit clone --depth 1 https://github.com/deltazefiro/Amarok-HiderWrote 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/instructions/deltazefiro/amarok-hider/agents-md)<a href="https://agentmods.dev/instructions/deltazefiro/amarok-hider/agents-md"><img src="https://agentmods.dev/badge/instructions/deltazefiro/amarok-hider/agents-md/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/instructions/deltazefiro/amarok-hider/agents-md"><img src="https://agentmods.dev/badge/instructions/deltazefiro/amarok-hider/agents-md.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 | $0.00467 | $0.00467 |
| Opus 5.5 | $0.00187 | $0.00187 |
| Sonnet 5.5 | $0.00093 | $0.00093 |
| Haiku 4.5 | $0.00047 | $0.00047 |
Grade A, and why
Amarok-Hider AGENTS.md 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 2mo 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.
What it actually says
Amarok
Amarok is a lightweight Android app that hides files and applications for casual privacy needs. Instead of encryption, it manages file and app visibility using various techniques.
Project Overview
See @.cursor/rules/overview.mdc
Build
Requires JDK 17+:
./gradlew assemble # Build APKs
# Output: app/build/outputs/apk/{flavor}/{debug|release}/Amarok-v{version}+{commit}-{flavor}.apk
# Example (foss debug): app/build/outputs/apk/foss/debug/Amarok-v0.10.0+caa1716-foss.apk
Note: ./gradlew build includes lint checks (mostly missing translations warnings), use assemble instead.
E2E Test
- Launch AVD (if not already running)
Check if device running with mcp
mobile_list_available_devices(more reliable thanadb devices). If not, start AVD with:emulator -avd android_16_avd -no-window -no-audio -no-boot-anim -gpu swiftshader_indirect # Runs in background, wait ~30s until "mobile_list_available_devices" shows "emulator-*" - Install the latest build of the app with adb.
- Spawn agent
mobile-e2e-testerto test the app.- Package name: Use
deltazero.amarok.fossfor FOSS flavor builds (notdeltazero.amarok) - Note: Each agent invocation should test one simple, focused task. For complex test plans, decompose into multiple simple tasks and run agents sequentially. The agent only test user-facing behavior (black-box approach).
- Package name: Use
Agent Rules
- Update @.cursor/rules/overview.mdc to reflect structural changes. Keep it as a concise index.
- Modify @.claude/settings.local.json for permission updates. A restart of Claude Code is required to take effect.
- For temporary files, always use
./tmpfolder under project root to avoid sandbox permission issues. Do not use/tmpor other system temp directories.
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.
- 2mo ago First seen · 37 lines · 467 tokens per session scan A ab4830ac8645
Amarok-Hider AGENTS.md is an instructions file published in the GitHub repository deltazefiro/Amarok-Hider (3,310 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 467 tokens to every session, about $0.0019 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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