What is DatabaseMcpServer AGENTS.md?

Repository instructions for DatabaseMcpServer, a .NET server that provides database-related tools through the Model Context Protocol (MCP), a standard way for AI tools to call software functions.

Organising server tools and services, changing the CLI or web setup, updating documentation or database presets, and running .NET builds and tests.

They explain where each part belongs and which commands verify the full solution, so changes are easier to maintain and test.

How ttcc666/DatabaseMcpServer configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to ttcc666/DatabaseMcpServer. 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/ttcc666/DatabaseMcpServer/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/ttcc666/DatabaseMcpServer

Made for: Codex, OpenCode.

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/ttcc666/databasemcpserver/agents-md/github.svg)](https://agentmods.dev/instructions/ttcc666/databasemcpserver/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/ttcc666/databasemcpserver/agents-md"><img src="https://agentmods.dev/badge/instructions/ttcc666/databasemcpserver/agents-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/ttcc666/databasemcpserver/agents-md"><img src="https://agentmods.dev/badge/instructions/ttcc666/databasemcpserver/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 710 This file is loaded in full into every session.

When invoked 710 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	$0.00710	$0.00710
Opus 5.5	$0.00284	$0.00284
Sonnet 5.5	$0.00142	$0.00142
Haiku 4.5	$0.00071	$0.00071

Measured 2mo ago against content hash bf4f87ef4fac, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

DatabaseMcpServer AGENTS.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.

AGENTS.md · 35 lines

How it starts

The opening of the file, as written. The whole thing — 35 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

Keep solution-level files at the repository root, including DatabaseMcpServer.slnx, global.json, nuget.config, and MCP config examples.
Main server code lives in src/DatabaseMcpServer/. Entry points and composition are in Program.cs and Extensions/.
Group runtime logic by responsibility: Services/ for implementations, Interfaces/ for contracts, Helpers/ for shared parsing/sanitization/configuration utilities, Filters/ for cross-cutting MCP filters, and Models/ for DTOs.
Tool classes belong under Tools/Command, Tools/Query, Tools/Documentation, Tools/Export, or Tools/Management; keep each tool focused and single-purpose.
CLI and local web configuration code live in Cli/ and Web/. Tests are in tests/DatabaseMcpServer.Tests/. Documentation and database presets are in Doc/ and DatabaseSetting/. The optional Vue UI is in website/.

Build, Test, and Development Commands

dotnet build 'DatabaseMcpServer.slnx' — compile the full solution and validate package references.
dotnet test 'DatabaseMcpServer.slnx' — run all xUnit tests discovered under tests/.
DB_CONNECTION_STRING=... DB_TYPE=MySql dotnet run --project 'src/DatabaseMcpServer/DatabaseMcpServer.csproj' — launch the stdio MCP server for a local smoke test.
dotnet pack 'src/DatabaseMcpServer/DatabaseMcpServer.csproj' -c Release — create the NuGet/global-tool package.
powershell -ExecutionPolicy Bypass -File scripts/verify.ps1 — run repository verification scripts when preparing releases.

Coding Style & Naming Conventions

Use C# 12 with nullable enabled, implicit usings, four-space indentation, file-scoped namespaces, and braces on the next line.
Prefer constructor injection and small, testable classes. Reuse shared helpers for SQL safety, connection masking, JSON defaults, and argument validation.
Use PascalCase for public types and members, _camelCase for private readonly fields, and camelCase for parameters/local variables.
Keep comments minimal and rationale-focused. Save text files as UTF-8 without BOM.

Read the full file on GitHub · 35 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 · 35 lines · 710 tokens per session scan A bf4f87ef4fac

Subscribe to this mod's changes

DatabaseMcpServer AGENTS.md is an instructions file published in the GitHub repository ttcc666/DatabaseMcpServer (40 stars, last pushed 1mo ago), licensed MIT. It adds 710 tokens to every session, about $0.0028 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.

Databases

DatabaseMcpServer AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
DatabaseMcpServer AGENTS.mdttcc666/DatabaseMcpServer	Instructions file	40	1mo ago	MIT	A	710	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

DatabaseMcpServer: Instructions file for Codex