Borrowing it
Nothing to install: this file belongs to artusjs/artusx. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/artusjs/artusx/main/CLAUDE.mdgit clone --depth 1 https://github.com/artusjs/artusxWrote 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/instructions/artusjs/artusx/claude-md)<a href="https://agentmods.dev/instructions/artusjs/artusx/claude-md"><img src="https://agentmods.dev/badge/instructions/artusjs/artusx/claude-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.
<a href="https://agentmods.dev/instructions/artusjs/artusx/claude-md"><img src="https://agentmods.dev/badge/instructions/artusjs/artusx/claude-md.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 | $0.01606 | $0.01606 |
| Opus 5.5 | $0.00642 | $0.00642 |
| Sonnet 5.5 | $0.00321 | $0.00321 |
| Haiku 4.5 | $0.00161 | $0.00161 |
Grade A, and why
artusx CLAUDE.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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Available Skills
artusx-best-practices
A Claude Code skill is available at skills/artusx-best-practices/ to assist with ArtusX application development. This skill provides:
- Plugin Development: Complete patterns for creating ArtusX plugins with lifecycle hooks
- Decorators: Usage examples for @Controller, @Middleware, @Inject, HTTP route decorators
- Testing: Setup patterns with ArtusScanner, ArtusApplication, and Jest
- Common Tasks: Step-by-step guides for controllers, middleware, database integration
- Troubleshooting: Solutions for lifecycle issues, DI failures, configuration errors
The skill automatically activates when working with:
- Creating or modifying ArtusX plugins
- Implementing controllers and middleware
- Setting up tests for ArtusX packages
- Debugging lifecycle hook issues
- Configuring decorators and dependency injection
For detailed reference, see the skill's reference files in skills/artusx-best-practices/references/.
Project Overview
ArtusX is an ecosystem based on Artus.js framework (https://www.artusjs.org), managed as a Rush.js monorepo. It provides a plugin-based architecture for building web applications with support for multiple frameworks (Koa, Express, Nest).
Development Commands
Environment Setup
# Install Rush.js globally (required)
npm install -g @microsoft/rush
# Install all dependencies
rush update
# Rebuild all packages
rush rebuild
Building and Testing
# Build specific package
rush build -t <package-name>
# Rebuild specific package (clean build)
rush rebuild -t <package-name>
# Run tests for a specific package (from package directory)
cd packages/plugins/koa
rushx test
# Run tests with coverage
rushx cov
# Run linting
rushx lint
rushx lint:fix
Running Applications
# Development mode (from app directory)
cd packages/apps/artusx-koa
rushx dev
# Production mode
rushx start
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.
- 2mo ago First seen · 229 lines · 1,606 tokens per session scan A 92d76ee557cc
artusx CLAUDE.md is an instructions file published in the GitHub repository artusjs/artusx (11 stars, last pushed 4mo ago), licensed MIT. It adds 1,606 tokens to every session, about $0.0064 per session on Opus 5.5. 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.
artusx CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| artusx CLAUDE.mdartusjs/artusx | Instructions file | 11 | 4mo ago | MIT | A | 1,606 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
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| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 275k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |