android-emulator-harness SKILL.md skillC
android-emulator-harness from simiancraft/simiancraft-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add simiancraft/simiancraft-skills/android-emulator-harness@git:20260701.8f1a092Pins git:20260701.8f1a092 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 15 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- simiancraft/simiancraft-skills
- Path
skills/android-emulator-harness/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260701.8f1a092, committed Jul 1, 2026
- First version recorded
- Jun 2, 2026
- Size
- 11,695 bytes
- Repository stars
- 8
- License
- MIT
Bring up an Android app in a headless emulator on Linux/WSL and drive it for automated integration testing, the Android analog of Playwright for web. Boots an AVD under KVM, installs an APK (standalone or dev-client+Metro), drives the UI with Maestro (resilient tap-by-label/wait/assert), and gates on logcat + screenshots that come back for inspection. Use for ANY Android/Expo/React-Native project (not just one app) when the task is "run the app on an emulator", "drive the Android UI…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Android Emulator Harness (headless, WSL/Linux, Maestro-driven) Specializations (e.g. camera/mask) sit ON TOP of this kernel and override only the parts they must. > **Runtime/package manager.** Examples use `bun`/`bunx`; substitute your own > runner (`npm`/`npx`, `pnpm`/`pnpm dlx`, or `yarn`) wherever they appear. The > Android tooling itself (`adb`, `emulator`, Maestro, the JDK) is unaffected. ## Environment gotchas (verify once per machine) - **KVM group.** x86/x86_64 emulation needs `/dev/kvm`; the user must be in the `kvm` group: `sudo gpasswd -a $USER kvm` (needs a real terminal for the password). No relogin if you launch under `sg kvm -c "..."`. Symptom if missing: `x86_64 emulation currently requires hardware acceleration!`. - **JDK 17 must be the *active* `java`** for `sdkmanager`/`avdmanager`/Maestro. Maestro 2.x aborts on Java 8 with `ERROR: Java 17 or higher is required`; it reads the `java` on PATH, so exporting `JAVA_HOME` alone is not enough; prepend it to PATH. Symptom: bare `~/.maestro/bin/maestro --version` fails until you do. - **EAS builds/artifacts.** If `eas` isn't on PATH, install `eas-cli` and use it …
Read the whole file at its exact version.
How to install
mdr add simiancraft/simiancraft-skills/android-emulator-harness@sha256:80dacbb5d412f922The line at the top of this page pins the label git:20260701.8f1a092, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_irqyj22t7lane4fh)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 2, 2026 and Jul 1, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260701.8f1a092 latest | 2026-07-01 | 8f1a092 | 11,695 B | C | view · diff |
| git:20260602.f5dd6e1 | 2026-06-02 | f5dd6e1 | 11,354 B | C | view · diff |
| git:20260602.d525c22 | 2026-06-02 | d525c22 | 11,299 B | C | view · diff |
| git:20260602.c98611e | 2026-06-02 | c98611e | 11,037 B | C | view |
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl -Ls "https://get.maestro.mobile.dev" | bash)
- fail: No link to a raw IP address (matched: http://10.0.2.2:8081)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11695 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
simiancraft/simiancraft-skills · 8 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_irqyj22t7lane4fh GET https://markdownregistry.com/api/v1/resolve?ref=simiancraft/simiancraft-skills/android-emulator-harness GET https://markdownregistry.com/api/v1/blob/80dacbb5d412f922b543a71e3fec54c43e79491051da94c4ae27678473b627f7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.