MCP-Server: Instructions file for GitHub Copilot

.github/copilot-instructions.md

MCP-Server copilot-instructions.md is an instructions file for GitHub Copilot from lreb/MCP-Server. It costs 74 tokens per session, scanned C, original, MIT.

A set of project instructions for developing an MCP server in TypeScript. MCP is a standard for connecting AI agents to tools.

In plain words
What is it for?
Use it when building or maintaining the MCP server in the referenced project.
Why use it?
It gives contributors shared rules for following the protocol, organizing code, documenting tools, and testing them.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is lreb/MCP-Server's own configuration. It tells GitHub Copilot how to work on MCP-Server 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-Server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to lreb/MCP-Server. 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/lreb/MCP-Server/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/lreb/MCP-Server

Made for: GitHub Copilot.

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.

agentmods badge for MCP-Server copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/lreb/mcp-server/copilot-instructions/github.svg)](https://agentmods.dev/instructions/lreb/mcp-server/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/lreb/mcp-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/lreb/mcp-server/copilot-instructions/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.

agentmods 80×15 button for MCP-Server copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/lreb/mcp-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/lreb/mcp-server/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 This file is loaded in full into every session.
When invoked 74 The same file — it is already loaded in full.
Security scan C 1 finding. 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 $0.00074 $0.00074
Opus 5.5 $0.00030 $0.00030
Sonnet 5.5 $0.00015 $0.00015
Haiku 4.5 $0.00007 $0.00007

Measured 2mo ago against content hash bc383bca89d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

MCP-Server copilot-instructions.md scanned grade C 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 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- Use this file to provide workspace-specific custom instructions to Copilot. -->
.github/copilot-instructions.md · 12 lines

What it actually says

MCP Server Project

This workspace contains a Model Context Protocol (MCP) server for local development integration.

Project Guidelines

  • This is a TypeScript-based MCP server
  • Follow MCP protocol specifications
  • Keep tool implementations modular and well-documented
  • Test tools thoroughly before deployment
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. 2mo ago First seen · 12 lines · 74 tokens per session scan C bc383bca89d1

Subscribe to this mod's changes

MCP-Server copilot-instructions.md is an instructions file published in the GitHub repository lreb/MCP-Server (1 stars, last pushed 7mo ago), licensed MIT. It adds 74 tokens to every session, about $0.0003 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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