What is WSLSnapit-MCP CLAUDE.md?

Development instructions for WSLSnapIt MCP, a server that lets coding assistants capture Windows screens and read the Windows clipboard from inside WSL, the Linux environment that runs on Windows.

Installing dependencies, starting the server, understanding its screenshot and clipboard code, and working with its Node.js and PowerShell integration.

They give the agent the project’s structure, dependencies, and start commands so it can work on the server without guessing how the Windows and WSL parts connect.

How peterparker57/WSLSnapit-MCP configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to peterparker57/WSLSnapit-MCP. 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/peterparker57/WSLSnapit-MCP/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/peterparker57/WSLSnapit-MCP

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/peterparker57/wslsnapit-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/peterparker57/wslsnapit-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/peterparker57/wslsnapit-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/peterparker57/wslsnapit-mcp/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/peterparker57/wslsnapit-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/peterparker57/wslsnapit-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 701 This file is loaded in full into every session.

When invoked 701 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00701	$0.00701
Opus 5.5	$0.00280	$0.00280
Sonnet 5.5	$0.00140	$0.00140
Haiku 4.5	$0.00070	$0.00070

Measured 2mo ago against content hash 98a9b0c4aad3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

WSLSnapit-MCP 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.

CLAUDE.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 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.

Project Overview

WSLSnapIt MCP is a Model Context Protocol (MCP) server that provides advanced screenshot capture and clipboard reading capabilities for Windows applications from within WSL environments. The server enables AI assistants to capture screens, windows, and monitors with intelligent image processing and optimization, as well as read text and images from the Windows clipboard.

Development Commands

Package Management

# Install dependencies
bun install

# Start the MCP server
bun start
# or
node index.js

Architecture

Core Structure

index.js: Main MCP server implementation (v2.1.0) - contains all screenshot logic, clipboard reading, image processing, and MCP protocol handling
Runtime: Node.js with ES modules, designed for WSL environments
Communication: stdio-based MCP server using JSON-RPC protocol

Key Dependencies

@modelcontextprotocol/sdk@^0.6.0 - MCP framework for protocol implementation
sharp@^0.34.2 - Image processing and compression engine
PowerShell integration for Windows API calls from WSL

Screenshot Capabilities

The tool provides three main capture modes:

Monitor capture: all monitors, primary only, or specific monitor by number
Window capture: by title (partial matching) or process name
Output modes: direct return to Claude (optimized JPEG) or file system (PNG)

Clipboard Capabilities

The clipboard tool provides:

Auto-detection: Automatically detects whether clipboard contains text or image
Text reading: Retrieves text content from Windows clipboard
Image reading: Captures images from clipboard with automatic compression
Format selection: Can force specific format (text/image) or use auto mode

Image Processing Pipeline

Automatic optimization using Sharp library with mozjpeg
Dynamic quality adjustment to stay under 1MB limit
Progressive resizing strategy: 1920px → 1280px → 800px if needed
DPI-aware scaling for multi-monitor setups

Read the full file on GitHub · 80 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.

2mo ago First seen · 80 lines · 701 tokens per session scan A 98a9b0c4aad3

Subscribe to this mod's changes

WSLSnapit-MCP CLAUDE.md is an instructions file published in the GitHub repository peterparker57/WSLSnapit-MCP (5 stars, last pushed 1y ago), licensed MIT. It adds 701 tokens to every session, about $0.0028 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 2026-08-31.

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WSLSnapit-MCP: Instructions file for Claude Code