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mcp-web-cam: Instructions file for Claude Code

CLAUDE.md

mcp-web-cam CLAUDE.md is an instructions file for Claude Code from kmizu/mcp-web-cam. It costs 463 tokens per session, scanned A, original, MIT.

Claude Code instructions for an MCP server that controls webcams from Linux, Windows, and macOS. The server is written in TypeScript and uses MCP to expose tools to an AI agent.

In plain words
What is it for?
Use them when developing, building, type-checking, linting, or modifying webcam capture, recording, and camera-setting features.
Why use it?
They give the agent the project's architecture, commands, and platform-specific camera details needed for safe changes.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is kmizu/mcp-web-cam's own configuration. It tells Claude Code how to work on mcp-web-cam 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 mcp-web-cam configures →

not rated 0repo 1y ago A scan 463 tokens original MIT
View source ↗ kmizu/mcp-web-cam
Reuse

Borrowing it

Nothing to install: this file belongs to kmizu/mcp-web-cam. 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/kmizu/mcp-web-cam/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/kmizu/mcp-web-cam

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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<a href="https://agentmods.dev/instructions/kmizu/mcp-web-cam/claude-md"><img src="https://agentmods.dev/badge/instructions/kmizu/mcp-web-cam/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 463 This file is loaded in full into every session.
When invoked 463 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00463 $0.00463
Opus 5 $0.00231 $0.00231
Sonnet 5 $0.00093 $0.00093
Haiku 4.5 $0.00046 $0.00046

Measured 8d ago against content hash 2037af5d8833, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

mcp-web-cam 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 8d 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 · 56 lines

What it actually says

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

This is an MCP (Model Context Protocol) server for controlling webcams, written in TypeScript. The server provides tools for photo capture, video recording, and camera settings management across Linux, Windows, and macOS platforms.

Development Commands

  • npm run build: Compile TypeScript to JavaScript
  • npm run dev: Start development server with watch mode
  • npm start: Run the compiled MCP server
  • npm run typecheck: Run TypeScript type checking without compilation
  • npm run lint: Run ESLint on source files

Architecture

Core Components

  • WebcamController (src/webcam/controller.ts): Main camera control logic using node-webcam and ffmpeg
  • MCP Tools (src/tools/): Individual tool implementations for the MCP protocol
  • Type Definitions (src/webcam/types.ts, src/types/node-webcam.d.ts): TypeScript interfaces and type declarations

Platform Support

The controller uses platform-specific commands:

  • Linux: v4l2-ctl for camera controls, ffmpeg with v4l2 for recording
  • Windows: DirectShow with ffmpeg
  • macOS: AVFoundation with ffmpeg

File Organization

  • Photos are saved to captures/ directory
  • Videos are saved to recordings/ directory
  • Both directories are auto-created on startup

MCP Protocol Implementation

The server implements standard MCP interfaces:

  • Tools: Interactive camera operations (capture, record, settings)
  • Resources: Static data access (camera list, file listings)

Key Dependencies

  • @modelcontextprotocol/sdk: MCP protocol implementation
  • node-webcam: Camera capture library
  • sharp: Image processing
  • zod: Schema validation for tool parameters

Development Notes

  • The server runs on stdio transport for MCP communication
  • Camera settings modification requires appropriate system permissions
  • FFmpeg must be installed and accessible in PATH for video recording
  • Type declarations for node-webcam are included due to lack of official @types package
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. 8d ago First seen · 56 lines · 463 tokens per session scan A 2037af5d8833

Subscribe to this mod's changes

mcp-web-cam CLAUDE.md is an instructions file published in the GitHub repository kmizu/mcp-web-cam (0 stars, last pushed 1y ago), licensed MIT. It adds 463 tokens to every session, about $0.0023 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 2026-08-31.

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