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mssql-mcp: Instructions file for Codex

AGENTS.md

mssql-mcp AGENTS.md is an instructions file for Codex, OpenCode from eamonboyle/mssql-mcp. It costs 1,394 tokens per session, scanned A, original, MIT.

Project instructions for an MCP server that provides tools for querying and managing Microsoft SQL Server databases. MCP, or Model Context Protocol, is a standard way for AI agents to use external tools.

In plain words
What is it for?
Use it when building, linting, testing, starting, or running end-to-end checks for the mssql-mcp project.
Why use it?
It tells coding agents which commands validate the Node.js and TypeScript project and which tests require Docker and a live SQL Server.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is eamonboyle/mssql-mcp's own configuration. It tells Codex and OpenCode how to work on mssql-mcp 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 mssql-mcp configures →

not rated 5repo changed 18d ago A scan 1,394 tokens original MIT
View source ↗ eamonboyle/mssql-mcp npmjs.com
Reuse

Borrowing it

Nothing to install: this file belongs to eamonboyle/mssql-mcp. 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/eamonboyle/mssql-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/eamonboyle/mssql-mcp

Made for: Codex, OpenCode.

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Per session 1,394 This file is loaded in full into every session.
When invoked 1,394 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01394 $0.01394
Opus 5.5 $0.00558 $0.00558
Sonnet 5.5 $0.00279 $0.00279
Haiku 4.5 $0.00139 $0.00139

Measured 18d ago against content hash ce5633166c63, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mssql-mcp 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 18d 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 · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Cursor Cloud specific instructions

This repo is a single Node.js/TypeScript product: the MSSQL MCP Server (@eamonboyle/mssql-mcp). It is an MCP (Model Context Protocol) server that exposes tools/resources/prompts for querying and managing a Microsoft SQL Server database. There is no web UI. Standard commands (build, lint, test, start, watch) live in package.json and are documented in README.md / CONTRIBUTING.md.

Lint / test / build (no database required)

  • npm run build, npm run lint, npm test all pass with no external services — the unit tests mock the DB (see src/__tests__/). Use these for fast validation.
  • The prepare script runs npm run build automatically on npm install, so dist/ exists after install.

Full MCP tool E2E (Docker + SQL required)

After the database is up, run npm run test:e2e to exercise every registered MCP tool against AppDB / ReportingDB and print a per-tool PASS/FAIL report.

cp .env.example .env   # if needed
npm run db:up          # start Docker MSSQL + seed (skip if already healthy)
npm run test:e2e       # builds, starts HTTP server (ENABLE_DDL=true), runs all tools, then protocol checks

Scripts: scripts/e2e-mcp-tools.sh (orchestrator), scripts/e2e-mcp-tools.mjs (tool harness), and scripts/e2e-protocol.mjs (official MCP client in both protocol eras, port 3334). Details: docs/dev-database.md.

Cloud agent checklist:

  1. Start Docker if needed (dockerd; use sg docker -c '...' when the socket requires the docker group).
  2. npm run db:up — if the volume is corrupt, npm run db:reset.
  3. npm run test:e2e — exit code 0 means all tools passed.
  4. Server log on failure: /tmp/mssql-mcp-e2e-server.log

Running the server end-to-end (needs a SQL Server)

Use the repo's Docker Compose stack (seeded AppDB + ReportingDB). Details: docs/dev-database.md.

cp .env.example .env   # if you do not already have a .env
npm run db:up          # starts mssql-mcp-dev, waits, applies docker/mssql/init/*.sql
npm start              # loads .env via dotenv (stdio). For HTTP: MCP_TRANSPORT=http npm start

Read the full file on GitHub · 56 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.

  1. 18d ago Changed · +2 lines · +287 tokens per session ce5633166c63
  2. 1mo ago First seen · 54 lines · 1,107 tokens per session scan A 608685a31963

Subscribe to this mod's changes

mssql-mcp AGENTS.md is an instructions file published in the GitHub repository eamonboyle/mssql-mcp (5 stars, last pushed 19d ago), licensed MIT. It adds 1,394 tokens to every session, about $0.0056 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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