ElBruno.ModelContextProtocol: Instructions file for GitHub Copilot

.github/copilot-instructions.md

ElBruno.ModelContextProtocol copilot-instructions.md is an instructions file for GitHub Copilot from elbruno/ElBruno.ModelContextProtocol. It costs 2,648 tokens per session, scanned A, original, MIT.

Repository instructions for building ElBruno’s .NET library packages. They define where libraries, tests, samples, documentation, images, and automated build files belong.

In plain words
What is it for?
Use them when adding or reorganizing .NET library code, xUnit tests, sample applications, documentation, or build configuration.
Why use it?
They provide a consistent layout so projects are easier to build, test, document, and navigate.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is elbruno/ElBruno.ModelContextProtocol's own configuration. It tells GitHub Copilot how to work on ElBruno.ModelContextProtocol 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 ElBruno.ModelContextProtocol configures →

Reuse

Borrowing it

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

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 ElBruno.ModelContextProtocol copilot-instructions.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/elbruno/elbruno.modelcontextprotocol/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/elbruno/elbruno.modelcontextprotocol/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,648 This file is loaded in full into every session.
When invoked 2,648 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 $0.02648 $0.02648
Opus 5.5 $0.01059 $0.01059
Sonnet 5.5 $0.00530 $0.00530
Haiku 4.5 $0.00265 $0.00265

Measured 2mo ago against content hash fa99f7611dee, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ElBruno.ModelContextProtocol copilot-instructions.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.

.github/copilot-instructions.md · 313 lines

How it starts

The opening of the file, as written. The whole thing — 313 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ElBruno .NET Repository Conventions

These instructions define the conventions for ElBruno's .NET NuGet library repositories. Apply them when creating, modifying, or reviewing any project in this repo.


Repository Structure

{ProjectName}/
├── README.md                    # Project overview, badges, quick start
├── LICENSE                      # MIT License
├── Directory.Build.props        # Shared MSBuild properties (all projects)
├── global.json                  # SDK version with rollForward
├── .gitignore                   # .NET + IDE + OS ignores
├── {ProjectName}.slnx           # XML-based solution file
├── src/
│   ├── {Owner}.{ProjectName}.{Package}/   # Library projects
│   ├── tests/{Package}.Tests/             # xUnit test projects
│   └── samples/{SampleName}/              # Sample/demo apps
├── docs/                        # All documentation except README.md and LICENSE
├── images/                      # All images including nuget_logo.png
└── .github/workflows/           # CI/CD workflows
  • Root files only: README.md, LICENSE, Directory.Build.props, global.json, .gitignore, solution file
  • All source code (libraries, tests, samples) lives under src/
  • All documentation (except README.md and LICENSE) lives under docs/
  • All images live under images/, including nuget_logo.png for NuGet packages

Solution Format

  • Use .slnx (XML-based solution format), not .sln
  • All projects (libraries, tests, samples) must be included in the solution file
  • Use <Folder> elements for logical grouping: /src/, /src/tests/, /src/samples/

Project Conventions

Library Projects

  • Target net8.0;net10.0 (multi-target: LTS + latest)
  • Package naming: {Owner}.{ProjectName}.{Feature} (e.g., ElBruno.QRCodeGenerator.Svg)
  • Each packable project must include the NuGet icon:
    <None Include="$(MSBuildThisFileDirectory)..\..\images\nuget_logo.png" Pack="true" PackagePath="" />
    
  • Include <InternalsVisibleTo> for the corresponding test project
  • Enable symbol packages: <IncludeSymbols>true</IncludeSymbols>, <SymbolPackageFormat>snupkg</SymbolPackageFormat>
  • Enable deterministic CI builds: <ContinuousIntegrationBuild Condition="'$(GITHUB_ACTIONS)' == 'true'">true</ContinuousIntegrationBuild>

Read the full file on GitHub · 313 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 · 313 lines · 2,648 tokens per session scan A fa99f7611dee

Subscribe to this mod's changes

ElBruno.ModelContextProtocol copilot-instructions.md is an instructions file published in the GitHub repository elbruno/ElBruno.ModelContextProtocol (8 stars, last pushed 4mo ago), licensed MIT. It adds 2,648 tokens to every session, about $0.0106 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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