mobile-emulator-test

mobile-emulator-test is a skill for Claude Code from kensaurus/cursor-kenji. It costs 67 tokens per session (5,111 once invoked), scanned A, original, MIT.

An end-to-end test procedure for a native Android app running in an emulator, including the user interface, database results, and crash telemetry. An emulator is a computer-simulated Android device.

In plain words
What is it for?
Use it to verify an Android build, test guest and signed-in flows, check every tab, and confirm that successful actions reach the database.
Why use it?
It catches problems that unit tests and build checks can miss, such as blank screens, stale bundles, broken cache loading, and failed data refreshes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the cursor-kenji plugin — 132 skills, 63 commands, 6 agents, 1 hook, 3 MCP servers shipped together

Good fit Use it to verify an Android build, test guest and signed-in flows, check every tab, and confirm that successful actions reach the database.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kensaurus/cursor-kenji/mobile-emulator-test
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.

Any agent
npx skills add kensaurus/cursor-kenji --skill mobile-emulator-test
Clone the repo
git clone --depth 1 https://github.com/kensaurus/cursor-kenji

Made for: Claude Code.

Or install cursor-kenji, the plugin that ships this one along with the rest of its 132 skills, 63 commands, 6 agents, 1 hook, 3 MCP servers.

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 mobile-emulator-test

README.md
[![agentmods](https://agentmods.dev/badge/skills/kensaurus/cursor-kenji/mobile-emulator-test/github.svg)](https://agentmods.dev/skills/kensaurus/cursor-kenji/mobile-emulator-test)
Your own site
<a href="https://agentmods.dev/skills/kensaurus/cursor-kenji/mobile-emulator-test"><img src="https://agentmods.dev/badge/skills/kensaurus/cursor-kenji/mobile-emulator-test/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 mobile-emulator-test

Your own site · 80×15
<a href="https://agentmods.dev/skills/kensaurus/cursor-kenji/mobile-emulator-test"><img src="https://agentmods.dev/badge/skills/kensaurus/cursor-kenji/mobile-emulator-test.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 5,111 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 11 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 117
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 119
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 121
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 117
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 119
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 121
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Agent Snooping · line 124
    Skill accesses MCP server configuration files (mcp.json). MCP configs contain server URLs, authentication tokens, and tool definitions — reading them allows the skill to discover and potentially abuse other tool integrations.
    Fix: Remove all code or instructions that read MCP configuration files (mcp.json). MCP server details should be managed by the agent runtime, not read by individual skills.
  • medium Data Exfiltration · line 348
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium MCP Rug Pull · line 407
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 453
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Data Exfiltration · line 410
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 $0.05111
Opus 5.5 $0.00027 $0.02044
Sonnet 5.5 $0.00013 $0.01022
Haiku 4.5 $0.00007 $0.00511

Measured 1mo ago against content hash 2985c4771022, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mobile-emulator-test scanned grade A with 1 finding 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 1mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sf "http://localhost:${METRO_PORT}/status"
skills/mobile-emulator-test/SKILL.md · 493 lines

How it starts

The opening of the file, as written. The whole thing — 493 lines — stays where its author put it; the contents beside it link to each section on GitHub.

mobile-emulator-test — Native build QA on Android emulator + MCP loop

Degree of freedom: MIXED. Walk judgment and findings [HIGH freedom]; bring-up, Phase 1.5 freshness, and three-layer CRUD [LOW freedom — run exactly].

End-to-end verification of any native mobile build through a real Android emulator session, with backend truth (Supabase MCP) and crash telemetry (Sentry MCP) wired into the same loop. Catches the failure modes that pure unit tests and CI bundle builds miss: white screens, prototype-stripped cache rehydration, missing migrations, sync-disabled empty states, infinite refetch loops, and silent error swallows.

How to reason

  1. Discover — stack, tabs, MCP, signed-in test account
  2. Freshness — source + Metro bundle + device (Phase 1.5)
  3. Walk — guest AND signed-in; every tab
  4. Three-layer — UI success + DB row + cold refetch; evidence per finding

Worked example

Discover: Expo router; five tabs; Supabase MCP live; Sentry MCP missing (mark BLOCKED). Freshness: user said "nothing changed"; bundle grep of the patch string = 0 → --clear Metro, then reload. Walk: guest create fails closed; signed-in create shows toast. Three-layer: toast yes, execute_sql finds the row, kill/reopen still shows it. Finding: guest path only.

Self-critique before reporting

  • Fresh build — source, bundle, and screencap all show the patched string
  • Both identities — guest and signed-in walks ran; empty-state is not the only path
  • Three layers — no mutation called "tested" on UI toast alone
  • Right owner — bring-up only → mobile-emulator-start; store/plugins/OTA → mobile-capacitor-platform

Rules

Test as a real signed-in user AND as a brand-new guest. Walk the app the way a paying customer would — sign in, browse every tab, add a real entry, edit it, delete it — AND the way a new user would — open the app fresh, hit the guest path, drive a CRUD round-trip without any account. Both paths exercise different code (sync replica vs cloud direct vs local-only adapter) and both regress independently. While walking, watch logcat, Sentry, and the DB at the same time.

Read the full file on GitHub · 493 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago Changed · +2 lines · -7 tokens per session 2985c4771022
  2. 1mo ago First seen · 491 lines · 74 tokens per session scan A f34ccc05afc8

Subscribe to this mod's changes

mobile-emulator-test is a skill published in the GitHub repository kensaurus/cursor-kenji (9 stars, last pushed 26d ago), licensed MIT. It adds 67 tokens to every session and 5,111 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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