Amarok-Hider AGENTS.md

Project guidance for Amarok, a lightweight Android app that hides files and applications for casual privacy rather than encrypting them.

In plain words
What is it for?
Use it to build APKs, launch an Android emulator, install a selected app variant, and run tests that exercise the app on a device.
Why use it?
It records the correct build commands, Android package names, device setup, and end-to-end testing procedure, reducing setup errors.

Instructions file for CodexOpenCode

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 instructions/deltazefiro/amarok-hider/agents-md
Clone the repo
git clone --depth 1 https://github.com/deltazefiro/Amarok-Hider

Made for: Codex, OpenCode.

Per session 467 This file is loaded in full into every session.
When invoked 467 The same file — it is already loaded in full.
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 $0.00467 $0.00467
Opus 5 $0.00234 $0.00234
Sonnet 5 $0.00093 $0.00093
Haiku 4.5 $0.00047 $0.00047

Measured yesterday against content hash ab4830ac8645, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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 yesterday.

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.

AGENTS.md · 37 lines

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

  1. Launch AVD (if not already running) Check if device running with mcp mobile_list_available_devices (more reliable than adb 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-*"
    
  2. Install the latest build of the app with adb.
  3. Spawn agent mobile-e2e-tester to test the app.
    • Package name: Use deltazero.amarok.foss for FOSS flavor builds (not deltazero.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).

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 ./tmp folder under project root to avoid sandbox permission issues. Do not use /tmp or other system temp directories.
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. yesterday First seen · 37 lines · 467 tokens per session scan A ab4830ac8645

Subscribe to this mod's changes

Amarok-Hider AGENTS.md is an instructions file published in the GitHub repository deltazefiro/Amarok-Hider (3,220 stars, last pushed 21d ago), licensed Apache-2.0. It adds 467 tokens to every session, about $0.0023 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.