uiautomator2-mcp-server: Instructions file for Codex

AGENTS.md

uiautomator2-mcp-server AGENTS.md is an instructions file for Codex, OpenCode from tanbro/uiautomator2-mcp-server. It costs 3,906 tokens per session, scanned B, original, Apache-2.0.

A set of instructions for an MCP server that lets coding agents control Android devices through the uiautomator2 library. It covers the project layout, setup, dependencies, and available device actions.

In plain words
What is it for?
Use it when developing, installing, or maintaining the server, including touch gestures, app control, clipboard operations, image handling, and Android device health checks.
Why use it?
It gives an agent the project-specific context needed to work on Android automation code without guessing how the server is organized or installed.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is tanbro/uiautomator2-mcp-server's own configuration. It tells Codex and OpenCode how to work on uiautomator2-mcp-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything uiautomator2-mcp-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tanbro/uiautomator2-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/tanbro/uiautomator2-mcp-server/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/tanbro/uiautomator2-mcp-server

Made for: Codex, OpenCode.

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Per session 3,906 This file is loaded in full into every session.
When invoked 3,906 The same file — it is already loaded in full.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.03906 $0.03906
Opus 5 $0.01953 $0.01953
Sonnet 5 $0.00781 $0.00781
Haiku 4.5 $0.00391 $0.00391

Measured 9d ago against content hash 0a992bcd7185, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade B, and why

uiautomator2-mcp-server AGENTS.md scanned grade B 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 9d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- **Linux (Debian/Ubuntu):** `sudo apt install adb`
AGENTS.md · 472 lines

How it starts

The opening of the file, as written. The whole thing — 472 lines — stays where its author put it; the contents beside it link to each section on GitHub.

uiautomator2-mcp-server

An MCP (Model Context Protocol) server that provides tools for controlling Android devices using uiautomator2.

Project Overview

This project exposes Android device automation capabilities as MCP tools. It uses:

  • fastmcp for MCP server implementation
  • cyclopts for CLI argument parsing (via fastmcp dependency)
  • uiautomator2 for Android device control
  • anyio for async operations
  • Pillow for image handling

Project Structure

src/u2mcp/
├── __init__.py          # Package init, exports version info
├── __main__.py          # Entry point for CLI commands
├── version.py           # Version info module
├── mcp.py               # MCP server factory and configuration
├── background.py        # Background task management
├── health.py            # ADB availability check and doctor command
├── helpers.py           # Helper functions for CLI output (tags, tools, info)
├── middlewares.py       # MCP middlewares for request/response handling
└── tools/
    ├── __init__.py      # Tools registry
    ├── action.py        # Touch/gesture tools (click, swipe, drag, etc.)
    ├── app.py           # App management tools
    ├── clipboard.py     # Clipboard read/write tools
    ├── delay.py         # Delay utility
    ├── device.py        # Device management tools
    ├── gesture.py       # Edge swipe and multitouch gestures
    ├── input.py         # Text input and keyboard tools
    ├── scrcpy.py        # Screen mirroring (scrcpy integration)
    ├── screenrecord.py  # Screen recording tools
    ├── system.py        # System controls (orientation, notification, unlock)
    ├── toast.py         # Toast message utilities
    └── xpath.py         # XPath-based element tools (primary)

.skills/                  # AI-driven testing skills
├── android-ui-test/
│   ├── SKILL.md         # Skill definition
│   ├── README.md        # Skill documentation
│   ├── examples/        # Usage examples
│   └── references/      # Technical specifications

tests/
├── conftest.py          # Pytest configuration and fixtures
├── unit/                # Fast unit tests
└── integration/         # Integration tests requiring real devices

Read the full file on GitHub · 472 lines

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. 9d ago First seen · 472 lines · 3,906 tokens per session scan B 0a992bcd7185

Subscribe to this mod's changes

uiautomator2-mcp-server AGENTS.md is an instructions file published in the GitHub repository tanbro/uiautomator2-mcp-server (41 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 3,906 tokens to every session, about $0.0195 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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