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mssqlMCP: Instructions file for GitHub Copilot

.github/copilot-instructions.md

mssqlMCP copilot-instructions.md is an instructions file for GitHub Copilot from MCPRUNNER/mssqlMCP. It costs 303 tokens per session, scanned C, original, MIT.

Project instructions for mssqlMCP, a C# server that lets VS Code and Copilot communicate with SQL Server databases through the Model Context Protocol, a standard way for AI tools to call external tools.

In plain words
What is it for?
Adding or changing SQL Server database operations, exposing database metadata, configuring Copilot Agent use, and checking the server's initialization and build setup.
Why use it?
They keep database access, configuration, logging, and communication consistent while reducing common implementation mistakes.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is MCPRUNNER/mssqlMCP's own configuration. It tells GitHub Copilot how to work on mssqlMCP 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 mssqlMCP configures →

not rated 11repo 5mo ago C scan 303 tokens original MIT
View source ↗ MCPRUNNER/mssqlMCP
Reuse

Borrowing it

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

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 mssqlMCP copilot-instructions.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/mcprunner/mssqlmcp/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/mcprunner/mssqlmcp/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 303 This file is loaded in full into every session.
When invoked 303 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 $0.00303 $0.00303
Opus 5.5 $0.00121 $0.00121
Sonnet 5.5 $0.00061 $0.00061
Haiku 4.5 $0.00030 $0.00030

Measured 2mo ago against content hash b1c88f06655c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

mssqlMCP 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. For more details, visit https://code.visualstudio.com/docs/copilot/copilot-customization#_use-a-githubcopilotinstructionsmd-file -->
.github/copilot-instructions.md · 35 lines

What it actually says

mssqlMCP Copilot Instructions

This is a Model Context Protocol (MCP) Server project that connects to SQL Server databases, and is designed to be used by vscode as a Copilot Agent.

You can find more info and examples at

This project:

  • Implements the Model Context Protocol for SQL Server database connectivity
  • uses stdio for communication
  • Allows VS Code and Copilot to connect to SQL databases via MCP
  • Supports fetching metadata
  • Uses C# for the implementation
  • To be used as a Copilot Agent MCP

Additional Instructions

  • Use current vscode workspace
  • Use Microsoft.Data.SqlClient instead of System.Data.SqlClient
  • Use ModelContextProtocol
  • Use async/await for all database calls
  • Use a logging framework for logging
  • Use a configuration file for connection strings
  • Add all changes to current workspace
  • Use a .gitignore file to ignore build files
  • Create example mcp.json for running with Copilot Agent in VS Code
  • Make sure to include an initialize endpoint.
  • Use best practices
  • when prompting for terminal commands, use a semicolon to separate commands
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 · 35 lines · 303 tokens per session scan C b1c88f06655c

Subscribe to this mod's changes

mssqlMCP copilot-instructions.md is an instructions file published in the GitHub repository MCPRUNNER/mssqlMCP (11 stars, last pushed 5mo ago), licensed MIT. It adds 303 tokens to every session, about $0.0012 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.

Databasesmcpmcp-servermcp-tools
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