Borrowing it
Nothing to install: this file belongs to NotMyself/new-windows-dev-pc. 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/NotMyself/new-windows-dev-pc/main/CLAUDE.mdgit clone --depth 1 https://github.com/NotMyself/new-windows-dev-pcWrote 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/notmyself/new-windows-dev-pc/claude-md)<a href="https://agentmods.dev/instructions/notmyself/new-windows-dev-pc/claude-md"><img src="https://agentmods.dev/badge/instructions/notmyself/new-windows-dev-pc/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/notmyself/new-windows-dev-pc/claude-md"><img src="https://agentmods.dev/badge/instructions/notmyself/new-windows-dev-pc/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 | $0.01262 | $0.01262 |
| Opus 5.5 | $0.00505 | $0.00505 |
| Sonnet 5.5 | $0.00252 | $0.00252 |
| Haiku 4.5 | $0.00126 | $0.00126 |
Grade B, and why
new-windows-dev-pc CLAUDE.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 1mo 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
- Claude Code settings: `settings/claude/settings.json` → `~/.claude/settings.json` How it starts
The opening of the file, as written. The whole thing — 103 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.
Repository Purpose
This is a Windows developer setup automation repository containing PowerShell scripts to install and configure development tools, IDEs, and environments for new developers.
Key Commands
Main Setup Commands
.\install.ps1- Main installation script with PowerShell 7+ detection and WSL setup- Requires Administrator privileges (automatically elevates with proper error handling)
- Optional parameters:
-SkipWinGet,-SkipNpmPackages,-SkipExtensions - Installs 30+ development tools via WinGet package manager
- Always installs and configures WSL (Ubuntu-22.04) with development environment
- Installs Cascadia Code fonts with registry integration from
fonts/CascadiaCode.zip - Installs global npm packages and 38+ VSCode extensions
pwsh .\configure.ps1- Interactive configuration wizard for complete development environment setup- Requires PowerShell 7+ (displays clear upgrade instructions if older version detected)
- Always configures Claude Code for WSL with bash shell and formatting tools
- Interactive mode: Step-by-step configuration with explanations and user confirmations
- Fast mode: Use
-SkipConfirmationto bypass all prompts for automated deployment - Force mode: Use
-Forceto overwrite existing configurations - Windows 11 optimizations: Opt-in enhanced features during configuration
- Developer Mode detection: Uses symbolic links without Administrator privileges when enabled
Component Scripts
.\installs\winget.ps1- Installs development tools via WinGet package manager.\installs\vscode.ps1- Installs VSCode extensions from the extensions list.\installs\install-winget.ps1- Installs WinGet if not present
Administrative Requirements
All main scripts require Administrator privileges and will check for elevation before running.
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.
- 1mo ago First seen · 103 lines · 1,262 tokens per session scan B 2c8f9db9d2c0
new-windows-dev-pc CLAUDE.md is an instructions file published in the GitHub repository NotMyself/new-windows-dev-pc (24 stars, last pushed 1y ago), licensed MIT. It adds 1,262 tokens to every session, about $0.0050 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
plan-forge dapr.instructions.md
Dapr patterns for .NET — building blocks, component config, sidecar architecture, multi-tenant isolation, workflows, state management, secrets.
plan-forge database.instructions.md
Database patterns for .NET — Dapper/EF Core 10, parameterized queries, migration strategy.
plan-forge naming.instructions.md
Azure naming conventions — Microsoft CAF abbreviations, constraints, uniqueness, tagging.
plan-forge caching.instructions.md
Caching patterns for .NET — IDistributedCache, Redis, in-memory, cache-aside, TTL strategies.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.