Atlas / Skills / callstack / Agent Device

Agent DeviceSAFE

skills/callstack/agent-device

Mobile app automation and verification for AI coding agents. CLI, MCP server, and typed Node.js API for iOS, Android, HarmonyOS, TV, web, macOS, and Linux.

Verdict
SAFE
Grade
B
Trust score
89 /100
Version
—
Hosts
—
License
MIT
Stars
5,078
01

Overview

Mobile app automation and verification for AI coding agents. CLI, MCP server, and typed Node.js API for iOS, Android, HarmonyOS, TV, web, macOS, and Linux.

Read from source at commit aed880a39257OBSERVED · 2026-10-20
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02

What it tells the agent

The instruction file, verbatim from the audited commit — this is the text the model reads, and the surface the audit's instruction layer examines. Quoted here so you can judge it without cloning anything.

---
name: agent-device
description: Automates Apple-platform apps (iOS, tvOS, macOS), Android devices, and Amazon Vega OS TV apps in Vega Virtual Devices. Use when navigating apps, taking snapshots/screenshots where supported, driving TV remotes, tapping, typing, scrolling, extracting UI info, collecting evidence, or planning agent-device CLI commands.
---

# agent-device

For a normal app-driving task, start immediately. Do not probe first with `--help`, `--version`, `devices`, `appstate`, `snapshot`, or `screenshot`:

```bash
agent-device open <app> --foreground
```

That starts the session and returns the initial interactive snapshot with `@refs`.

Loop: act with `press|click|fill|longpress <target> ... --settle`, `scroll <direction> --settle`, or `back --settle`; continue from the printed diff, verify the named expectation (`wait text "..."`, `is`, `get`, or `find`), then run `agent-device close`.

Reaching an off-screen target is one command, not a scroll-and-check loop: `scroll down --until <selector>` scrolls until that element is on screen, and `scroll bottom` runs to the end of the content. Repeated bare `scroll down` calls are the slow way to find something.

Copy refs byte-for-byte: `@e12`, `@e12~s4` — keep the `@` and any `~sN`. Prefer current refs, then `id`/`label`/`role` selectors; coordinates are a last resort. If snapshot reports sparse/AX-unavailable, its refs and selectors are invalid: run `agent-device screenshot`, inspect the image, use coordinates, then retry `snapshot -i` after navigating. Otherwise run `snapshot -i` only when the diff lacks the next target.

Error output includes corrective hints; follow them instead of re-planning. Only when the task is specialized (for example gestures, scripting, TV, macOS, remote, or debugging) or a command shape is unclear, run `agent-device help <topic>`. `agent-device --help` lists topics, but is not a startup step.
03

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeNA
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (0)

No findings outside the package's declared scope.

Gates applied: no_behavioural_pass.

Audited 2026-10-20 · audit v0.4.1 · source sha aed880a39257full audit observations/trust-audit/skill/callstack__agent-device.json · Report an issue / request a re-scan
04

Audit history

Every audit this skill has had.

DateSourceVerdictGradeScoreChange
2026-10-20aed880a39257SAFEB89first audit
05

Questions

What does the agent-device — callstack/agent-device skill do?

Mobile app automation and verification for AI coding agents. CLI, MCP server, and typed Node.js API for iOS, Android, HarmonyOS, TV, web, macOS, and Linux.

Is agent-device — callstack/agent-device safe to install?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.

What can agent-device — callstack/agent-device access on my machine?

The audit observed no filesystem, network or shell use at all in its source.

How current is this page?

The grade is for one exact copy of the source (aed880a39257), read on 2026-10-20. The repository is watched, and a new audit runs when it changes — this is the first audit.

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