mobilegym AGENTS.md

mobilegym AGENTS.md is an instructions file for Codex, OpenCode from Purewhiter/mobilegym. It costs 6,877 tokens per session, scanned A, original, Apache-2.0.

Project instructions for mobile-gym, a browser-based Android-like simulator used to train and test software agents that operate mobile interfaces from screenshots. They describe the React, Vite, TypeScript and Tailwind setup, as well as its simulator APIs and translation rules.

In plain words
What is it for?
Use them when changing the simulator, its benchmark and trajectory tools, its JavaScript interfaces, documentation, or localized app text.
Why use it?
They give a coding agent the project context and prevent it from placing user-visible text or documentation in the wrong language or file. They also explain how to check types and follow the project's structure.

Instructions file for CodexOpenCode

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.

agentmods
npx agentmods add instructions/purewhiter/mobilegym/agents-md
Clone the repo
git clone --depth 1 https://github.com/Purewhiter/mobilegym

Made for: Codex, OpenCode.

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 mobilegym AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/purewhiter/mobilegym/agents-md.svg)](https://agentmods.dev/instructions/purewhiter/mobilegym/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/purewhiter/mobilegym/agents-md"><img src="https://agentmods.dev/badge/instructions/purewhiter/mobilegym/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 6,877 This file is loaded in full into every session.
When invoked 6,877 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.06877 $0.06877
Opus 5 $0.03438 $0.03438
Sonnet 5 $0.01375 $0.01375
Haiku 4.5 $0.00688 $0.00688

Measured 5d ago against content hash a94b3d91236c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mobilegym AGENTS.md scanned grade A with 0 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 5d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 328 lines

How it starts

The opening of the file, as written. The whole thing — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file provides guidance to Code Agents when working with code in this repository. Respond in whatever language the user writes to you in — if they ask in Chinese, reply in Chinese; if they ask in English, reply in English.

Project Overview

mobile-gym is a simulated Mobile environment (Android-like) built with React + Vite + TypeScript + Tailwind CSS v4. It serves as a training and benchmarking platform for mobile GUI Agents. The simulator runs in a browser and exposes JavaScript APIs (__SIM__, __OS__, __SIM_INPUT__, __SIM_QUERY__, __SIM_TIME__, __SIM_LOCATION__, __SIM_FS__) for task management, trajectory data synthesis, and benchmark orchestration. The Agent only sees screenshots.

User-facing documentation under docs/ and bench_env/docs/ is in English. New user-visible App text must also follow the i18n resource contract: keep it in res/strings.ts with localized overrides such as res/strings.en.ts, and consume it through useAppStrings / resolveAppStrings instead of scattering Chinese or English literals through JSX. See docs/platform/tooling/i18n.md and docs/platform/app/resources.md.

Type-checking strategy

  • Small changes (touching a few files, styling tweaks, data updates) — no need to run tsc --noEmit; rely on the IDE's live checker
  • Large changes — run npx tsc --noEmit once on completion to confirm there are no type errors

ESLint

npm run lint          # Lint runtime code under os/ and apps/

Current rule: bare Date.now() and any form of new Date(...) (including parameterised forms — they must go through TimeService) are forbidden. Config lives in eslint.config.js.

Navigation Artifact Generation (run after modifying navigation declarations)

# One-shot: consistency check + schema nav graph + action tasks
node scripts/build_nav_artifacts.mjs <AppName>

# With data graph generation
node scripts/build_nav_artifacts.mjs <AppName> --data data/index.ts

# Skip tasks, only update graphs
node scripts/build_nav_artifacts.mjs <AppName> --skip-tasks

Read the full file on GitHub · 328 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. 5d ago First seen · 328 lines · 6,877 tokens per session scan A a94b3d91236c

Subscribe to this mod's changes

mobilegym AGENTS.md is an instructions file published in the GitHub repository Purewhiter/mobilegym (784 stars, last pushed 7d ago), licensed Apache-2.0. It adds 6,877 tokens to every session, about $0.0344 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.