chrome-use: Instructions file for Codex

AGENTS.md

chrome-use AGENTS.md is an instructions file for Codex, OpenCode from leeguooooo/chrome-use. It costs 5,377 tokens per session, scanned A, original, from a forked repository, Apache-2.0.

A set of instructions for coding agents working on the chrome-use project. It covers the package manager, code style, command-line flags, documentation, and dashboard work.

In plain words
What is it for?
Use it when modifying the chrome-use codebase, especially when installing dependencies, changing CLI behavior, or updating user-facing features.
Why use it?
It prevents agent changes from conflicting with the project’s required tools, naming rules, and documentation process.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents; mentions AGENTS.md.

This is leeguooooo/chrome-use's own configuration. It tells Codex and OpenCode how to work on chrome-use 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 chrome-use configures →

Reuse

Borrowing it

Nothing to install: this file belongs to leeguooooo/chrome-use. 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/leeguooooo/chrome-use/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/leeguooooo/chrome-use

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 chrome-use AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/leeguooooo/chrome-use/agents-md/github.svg)](https://agentmods.dev/instructions/leeguooooo/chrome-use/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/leeguooooo/chrome-use/agents-md"><img src="https://agentmods.dev/badge/instructions/leeguooooo/chrome-use/agents-md/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 chrome-use AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/leeguooooo/chrome-use/agents-md"><img src="https://agentmods.dev/badge/instructions/leeguooooo/chrome-use/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5,377 This file is loaded in full into every session.
When invoked 5,377 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin fork From a forked repository.
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 $0.05377 $0.05377
Opus 5.5 $0.02151 $0.02151
Sonnet 5.5 $0.01075 $0.01075
Haiku 4.5 $0.00538 $0.00538

Measured 14d ago against content hash 6e15527cb208, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

chrome-use 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 14d 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 · 444 lines

How it starts

The opening of the file, as written. The whole thing — 444 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Instructions for AI coding agents working with this codebase.

Package Manager

This project uses pnpm. Always use pnpm instead of npm or yarn for installing dependencies, running scripts, etc. (e.g., pnpm install, pnpm run build).

Code Style

  • Do not use emojis in code, output, or documentation. Unicode symbols (✓, ✗, →, ⚠) are acceptable.
  • In documentation and markdown, never use double hyphens (--) as a dash. Use an emdash (—) sparingly when needed. Prefer rewriting the sentence to avoid dashes entirely.
  • CLI colored output uses cli/src/color.rs. This module respects the NO_COLOR environment variable. Never use hardcoded ANSI color codes.
  • CLI flags must always use kebab-case (e.g., --auto-connect, --allow-file-access). Never use camelCase for flags (e.g., --autoConnect is wrong).

Documentation

When adding or changing user-facing features (new flags, commands, behaviors, environment variables, etc.), update all of the following:

  1. cli/src/output.rs — --help output (flags list, examples, environment variables)
  2. README.md — Options table, relevant feature sections, examples
  3. skill-data/core/SKILL.md (and its references/) — so AI agents know about the feature when they load the core skill. Edit skill-data/core/SKILL.md for overview/workflow changes; edit skill-data/core/references/*.md for detailed reference content. Do not put feature content in skills/chrome-use/SKILL.md — that file is an intentionally thin discovery stub for npx skills add and exists only to redirect agents to chrome-use skills get core.
  4. docs/*.html and their docs/en/*.html mirrors — the docs site at chrome-use.leeguoo.com. These are hand-written static HTML, not a generator: docs/ is Chinese, docs/en/ is English, and both must be updated. A commit that touches skill-data/ prints a reminder naming the pages to update.
  5. README.md and README.zh.md — both, for the same reason.
  6. Inline doc comments in the relevant source files

Read the full file on GitHub · 444 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. 14d ago Changed · +40 lines · +499 tokens per session 6e15527cb208
  2. 28d ago Changed · +19 lines · +267 tokens per session ad13dbfd655a
  3. 1mo ago Changed · +10 lines · +201 tokens per session 542f076263d1
  4. 1mo ago Changed · +16 lines · +277 tokens per session 698cb9d3a7ee
  5. 1mo ago Changed · +44 lines · +557 tokens per session 0eee18c8b895
  6. 1mo ago Changed · +104 lines · +1,374 tokens per session c4134b91dc9c
  7. 2mo ago First seen · 211 lines · 2,202 tokens per session scan A 7f6c1a1d355a

Subscribe to this mod's changes

chrome-use AGENTS.md is an instructions file published in the GitHub repository leeguooooo/chrome-use (231 stars, last pushed yesterday), licensed Apache-2.0. It adds 5,377 tokens to every session, about $0.0215 per session on Opus 5.5. A static security scan graded it A with 0 findings. It comes from a forked repository.

Related

chrome-use AGENTS.md compared with instructions from other repositories

chrome-use AGENTS.md next to 6 instructions from other repositories
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chrome-use AGENTS.mdleeguooooo/chrome-useInstructions file231yesterdayApache-2.0A5,377Codex, OpenCode
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vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode