What is TcpSocketMCP CLAUDE.md?

Repository instructions for a server that lets AI models communicate with network services over TCP sockets. MCP, or Model Context Protocol, is a standard way to expose such tools to an AI assistant.

Use it when developing, running, or testing TCP connections, including buffered data, encodings, triggers, and automatic responses.

It explains how to run the server directly and test its connections, so contributors can work without guessing the development setup.

How SpaceyKasey/TcpSocketMCP configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to SpaceyKasey/TcpSocketMCP. 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/SpaceyKasey/TcpSocketMCP/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/SpaceyKasey/TcpSocketMCP

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/spaceykasey/tcpsocketmcp/claude-md/github.svg)](https://agentmods.dev/instructions/spaceykasey/tcpsocketmcp/claude-md)

Your own site

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

Per session 752 This file is loaded in full into every session.

When invoked 752 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	$0.00752	$0.00752
Opus 5.5	$0.00301	$0.00301
Sonnet 5.5	$0.00150	$0.00150
Haiku 4.5	$0.00075	$0.00075

Measured 2mo ago against content hash b742dc0bb6e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

TcpSocketMCP 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 · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 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

TCP Socket MCP Server - A Model Context Protocol server that provides raw TCP socket access to AI models. Enables direct interaction with network services through buffered connections with automatic trigger/response capabilities.

Development Commands

Running the Server

# Direct execution (no installation needed)
python run.py

# Or after installation
tcp-socket-mcp

Testing Connections

# Test with netcat
nc -l 8080  # Terminal 1: Start test server
python run.py  # Terminal 2: Run MCP server
# Terminal 3: Use MCP client to test tcp_connect("localhost", 8080)

Architecture

Core Components

MCP Server Layer (src/TcpSocketMCP/server.py)

Implements MCP protocol and tool registration
Manages connection lifecycle and routing
Handles encoding/decoding (UTF-8, hex, base64)
Pre-registration system for triggers before connection

Connection Manager (src/TcpSocketMCP/connection.py)

TCPConnection class with async read loop
Buffer management with chunked storage
Trigger pattern matching and auto-response
Thread-safe operations with asyncio locks

Entry Points

run.py: Direct runner without installation (adds src to path)
src/TcpSocketMCP/__main__.py: Package entry point
Both call server.main_sync() for stdio MCP transport

Key Design Patterns

Hex Encoding Strategy: Primary format is plain hex pairs ("48656C6C6F" for "Hello"). This avoids JSON escaping issues with protocols requiring specific line endings (HTTP, SMTP, IRC).

Buffer Architecture: All received data stored in chunks until explicitly cleared. Allows multiple reads, partial reads with index/count, and preserves data for analysis.

Trigger System: Pre-registration allows setting up auto-responses before connection. Essential for protocols requiring immediate handshakes. Uses regex with capture group substitution.

Read the full file on GitHub · 95 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 · 95 lines · 752 tokens per session scan A b742dc0bb6e1

Subscribe to this mod's changes

TcpSocketMCP CLAUDE.md is an instructions file published in the GitHub repository SpaceyKasey/TcpSocketMCP (10 stars, last pushed 1y ago), licensed MIT. It adds 752 tokens to every session, about $0.0030 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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TcpSocketMCP: Instructions file for Claude Code