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.
npx skills add JuanMarchetto/agent-skills --skill maestro-mobile-testinggit clone --depth 1 https://github.com/JuanMarchetto/agent-skillsWrote 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/skills/juanmarchetto/agent-skills/maestro-mobile-testing)<a href="https://agentmods.dev/skills/juanmarchetto/agent-skills/maestro-mobile-testing"><img src="https://agentmods.dev/badge/skills/juanmarchetto/agent-skills/maestro-mobile-testing/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/skills/juanmarchetto/agent-skills/maestro-mobile-testing"><img src="https://agentmods.dev/badge/skills/juanmarchetto/agent-skills/maestro-mobile-testing.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 | $0.00088 | $0.02384 |
| Opus 5 | $0.00044 | $0.01192 |
| Sonnet 5 | $0.00018 | $0.00477 |
| Haiku 4.5 | $0.00009 | $0.00238 |
Grade C, and why
maestro-mobile-testing scanned grade C with 2 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 7d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -Ls "https://get.maestro.mobile.dev" | bash Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -Ls "https://get.maestro.mobile.dev" | bash How it starts
The opening of the file, as written. The whole thing — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Maestro Mobile E2E Testing
Overview
Maestro is a declarative YAML-based mobile E2E testing framework. It provides automatic waiting, built-in retry logic, and fast execution without boilerplate. It's more stable than Detox or Appium for React Native apps.
Key Features
- Declarative YAML — no imperative test code, just steps
- Automatic waiting — no manual
sleep()or flaky waits - Built-in retry — reduces test flakiness
- Fast execution — runs quickly without setup overhead
- Maestro Studio — interactive test builder (
maestro studio) - Sub-flows — reusable YAML sequences for DRY tests
- JavaScript scripting — GraalJS runtime for HTTP calls and data manipulation
- Maestro Cloud — real device testing in CI without local simulators
Quick Start
Install
curl -Ls "https://get.maestro.mobile.dev" | bash
brew install openjdk@17
export JAVA_HOME=/opt/homebrew/opt/openjdk@17/libexec/openjdk.jdk/Contents/Home
Minimal test
appId: com.myapp
---
- launchApp
- tapOn:
id: "my-button"
- assertVisible: "Expected Text"
Run
maestro test .maestro/smoke-test.yaml
maestro test --debug .maestro/smoke-test.yaml # step through
maestro studio # interactive builder
Pattern Index
| # | Pattern | Reference |
|---|---|---|
| 1 | Selector Strategy: testID vs Text | core-patterns.md |
| 2 | Auth Pre-Flight Pattern | core-patterns.md |
| 3 | Adaptive Tests (Both Auth States) | core-patterns.md |
| 4 | Testing Optimistic Updates | core-patterns.md |
| 5 | Dismissing Native Alerts | core-patterns.md |
| 6 | Sub-Flows for Reusability | core-patterns.md |
| 7 | Deep Links (Expo) | core-patterns.md |
| 8 | Platform-Specific Logic | core-patterns.md |
| 9 | Environment Variables | core-patterns.md |
| 10 | Selector State Properties | core-patterns.md |
| 11 | Relative Position Selectors | core-patterns.md |
| - | OTP/Magic-Link Auth Testing | auth-testing.md |
| - | CI/CD & Maestro Cloud | ci-cd.md |
| - | Critical Gotchas & Platform Differences | gotchas.md |
| - | MCP Server Integration | mcp-integration.md |
What ships with it
8 files 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.
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.
- 7d ago First seen · 263 lines · 88 tokens per session scan C 32eb9bea045f
maestro-mobile-testing is a skill published in the GitHub repository JuanMarchetto/agent-skills (5 stars, last pushed 5mo ago), licensed MIT. It adds 88 tokens to every session and 2,384 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, 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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