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Native android test visually

Skill lukas-hinterleitner/visual-app-skills/skills/native-android-test-visually

Agent skills for visually testing mobile apps on Android — run a Flutter, React Native, or native Android app on an emulator/device, capture real screenshots via adb, read logs, optionally diff against a Figma design, and verify the UI rendered correctly. Works with Claude Code and other coding agents.

Install
npx -y skills add lukas-hinterleitner/visual-app-skills --skill native-android-test-visually

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What its author says it does

Copied from the file, not written here

Build, install, and run a native Android app (Kotlin or Java, Jetpack Compose or Views, Gradle) on a connected device or emulator, capture real screenshots via adb, read logcat, and verify the visible UI and runtime behavior match what a recent code change intended. Use whenever the user asks to "test the app", "run it on the emulator", "see the visual changes", "verify a UI fix", "check if my change works/renders", or otherwise wants empirical on-device confirmation that a native Android change rendered correctly — even when they don't say "screenshot" or "logs". Handles the Gradle install task (and build variants/flavors), launching the activity, waiting for the first frame, navigating with adb input, capturing the screen, reading logcat scoped to the app, and reporting a concrete verdict with evidence. Optionally diffs against a Figma reference when one is provided.

The file declares its own license as Apache-2.0. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

3.0 KB, 486 tokens by cl100k_base, as published. Nobody here has run it

Native Android visual test

Interactive, on-device verification of a native Android app (Kotlin/Java, Jetpack Compose or classic Views) — the "did my last change actually render correctly" check. Installs the app via Gradle, launches the activity, captures real screenshots via adb, reads logcat, and gives a concrete verdict.

When to use

  • "Test the app / run it on the emulator / see the visual changes."
  • "Did my Compose/layout fix work? Does this screen render correctly now?"
  • "Compare this screen to the Figma design." (optional Figma add-on)
  • Any request for empirical, on-device confirmation of a visual or runtime change — even without the words "screenshot" or "logs".

How it works

  1. Follow references/capture-loop.md — the universal procedure: preflight, launch in the background, wait for the first real frame, screenshot, capture logs, analyze the PNG against the change, report a verdict.
  2. For the native-Android specifics — the Gradle installDebug task and how to pick a build variant/flavor, launching the activity with am start / monkey, finding the applicationId, the "activity displayed" signal, and logcat scoped to the app's pid — read references/native-android.md.
  3. To navigate the UI before screenshotting, see references/driving-the-ui.md.
  4. When something looks off, see references/troubleshooting.md.
  5. (Optional) compare to a Figma design → references/figma-comparison.md (requires the Figma MCP server; skip entirely if you don't use Figma).
  6. App built with a cross-platform framework instead? See references/other-frameworks.md or use the matching skill.

Bundled scripts

scripts/check-devices.sh, launch.sh, snap.sh, capture-logs.sh, stop.sh wrap the common adb/Gradle commands with device disambiguation. capture-loop.md shows how they fit together. Note that a native Gradle install does not launch the app — see the framework reference for the am start step.

What ships with it: 8 files

10.0 KB alongside SKILL.md

evals/

references/

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