Borrowing it
Nothing to install: this file belongs to zabirauf/mcp-trace. 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/zabirauf/mcp-trace/main/CLAUDE.mdgit clone --depth 1 https://github.com/zabirauf/mcp-traceWrote 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/zabirauf/mcp-trace/claude-md)<a href="https://agentmods.dev/instructions/zabirauf/mcp-trace/claude-md"><img src="https://agentmods.dev/badge/instructions/zabirauf/mcp-trace/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/zabirauf/mcp-trace/claude-md"><img src="https://agentmods.dev/badge/instructions/zabirauf/mcp-trace/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 | $0.02900 | $0.02900 |
| Opus 5.5 | $0.01160 | $0.01160 |
| Sonnet 5.5 | $0.00580 | $0.00580 |
| Haiku 4.5 | $0.00290 | $0.00290 |
Grade A, and why
mcp-trace 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 — 418 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 when working with the MCP Proxy TUI project.
Project Overview
This is a Terminal User Interface (TUI) application built with Rust and Ratatui that acts as a proxy and monitor for Model Context Protocol (MCP) server traffic. It consists of two separate binaries that work together to intercept, log, and display all communication between MCP clients and servers in real-time.
Architecture
The project is structured as a Cargo workspace with two main components:
1. MCP Proxy (mcp-proxy)
- Purpose: STDIO-based proxy for MCP servers
- Language: Rust with tokio for async operations
- Functionality: Intercepts and forwards JSON-RPC communication, sends logs to monitor
- Binary location:
target/release/mcp-proxy
2. MCP Monitor (mcp-monitor)
- Purpose: TUI for monitoring multiple MCP proxies
- Language: Rust with Ratatui for terminal UI
- Functionality: Real-time display of logs, statistics, and proxy status
- Binary location:
target/release/mcp-monitor
3. Shared Library (mcp-common)
- Purpose: Common types, IPC communication, and message protocols
- Components: Types, IPC (Unix sockets), JSON-RPC handling
MCP Client → [mcp-proxy] → MCP Server (STDIO)
↓ (IPC)
[mcp-monitor TUI]
↓
[Log Storage]
Repository Information
GitHub Repository: zabirauf/mcp-trace
Binary Distribution
When setting up binary distribution, only the mcp-trace binary should be distributed. The other binaries (mcp-monitor and mcp-proxy) are for internal use only and should not be included in public distributions.
Commit Message Style
Keep git commit messages concise and direct. Avoid verbose explanations.
Branch Management
For new tasks unrelated to the current work, always create a new branch from main:
git checkout main
git pull origin main
git checkout -b feature/new-task-name
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 · 418 lines · 2,900 tokens per session scan A 1274b6ffa01c
mcp-trace CLAUDE.md is an instructions file published in the GitHub repository zabirauf/mcp-trace (12 stars, last pushed 3d ago), licensed MIT. It adds 2,900 tokens to every session, about $0.0116 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.
mcp-trace CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| mcp-trace CLAUDE.mdzabirauf/mcp-trace | Instructions file | 12 | 3d ago | MIT | A | 2,900 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,685 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |