SqlAugur: Instructions file for Codex

AGENTS.md

SqlAugur AGENTS.md is an instructions file for Codex, OpenCode from mbentham/SqlAugur. It costs 650 tokens per session, scanned A, original, MIT.

A project guide for SqlAugur, a .NET MCP server that lets AI assistants use defined tools. It describes the code layout, commands, style rules, and tests.

In plain words
What is it for?
Use it when changing SqlAugur code, running unit or container-based integration tests, or creating its release and NuGet package.
Why use it?
It gives a coding agent the repository’s working rules and the correct commands for building, testing, running, and packaging the server.

Instructions file for CodexOpenCode

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

This is mbentham/SqlAugur's own configuration. It tells Codex and OpenCode how to work on SqlAugur 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 SqlAugur configures →

Reuse

Borrowing it

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

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.

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README.md
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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.

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Your own site · 80×15
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Per session 650 This file is loaded in full into every session.
When invoked 650 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 $0.00650 $0.00650
Opus 5.5 $0.00260 $0.00260
Sonnet 5.5 $0.00130 $0.00130
Haiku 4.5 $0.00065 $0.00065

Measured 2mo ago against content hash 05393d6ce7cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

SqlAugur 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 · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

  • SqlAugur/: main MCP server (Program.cs) and production code.
  • SqlAugur/Tools/: MCP tool endpoints (thin wrappers with [McpServerTool]).
  • SqlAugur/Services/: business logic and SQL access (validation, schema, DBA integrations).
  • SqlAugur/Configuration/: options, validators, and toolset registry.
  • SqlAugur.Tests/: unit tests (xUnit v3, no external services).
  • SqlAugur.IntegrationTests/: container-backed integration tests (SQL Server via Testcontainers/Podman).
  • Root docs: README.md, CONTRIBUTING.md, SECURITY.md, CHANGELOG.md.

Build, Test, and Development Commands

  • dotnet build: build the full solution from repo root (SqlAugur.slnx).
  • dotnet run --project SqlAugur: run the MCP server on stdio.
  • dotnet test SqlAugur.Tests: run unit tests only.
  • DOCKER_HOST=unix:///run/user/1000/podman/podman.sock TESTCONTAINERS_RYUK_DISABLED=true dotnet test SqlAugur.IntegrationTests: run integration tests.
  • dotnet publish SqlAugur -c Release -o SqlAugur/publish: produce release output.
  • dotnet pack SqlAugur -c Release: build the NuGet global tool package.

Coding Style & Naming Conventions

  • Language: C# on net10.0 with nullable and implicit usings enabled.
  • Indentation: 4 spaces; keep formatting consistent with existing files.
  • Naming: PascalCase for types/methods/properties; camelCase for locals/parameters; interfaces prefixed with I (for example ISqlServerService).
  • Design rule: keep tools thin; put behavior in services.
  • Security-sensitive logic (especially query validation) should remain AST-based, not regex-based.

Testing Guidelines

  • Framework: xUnit v3 with Microsoft.NET.Test.Sdk and coverlet.collector.
  • Test file naming: *Tests.cs (for example QueryValidatorTests.cs).
  • Add or update tests for all behavior changes; include bypass/regression cases for validator changes.
  • Helpful filters:
    • dotnet test --filter "DisplayName~TestNameHere"
    • dotnet test --filter "FullyQualifiedName~QueryValidatorTests"

Read the full file on GitHub · 43 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. 2mo ago First seen · 43 lines · 650 tokens per session scan A 05393d6ce7cb

Subscribe to this mod's changes

SqlAugur AGENTS.md is an instructions file published in the GitHub repository mbentham/SqlAugur (8 stars, last pushed 17d ago), licensed MIT. It adds 650 tokens to every session, about $0.0026 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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