luno-mcp copilot-instructions.md

luno-mcp copilot-instructions.md is an instructions file for GitHub Copilot from luno/luno-mcp. It costs 885 tokens per session, scanned A, original, MIT.

Project instructions for Luno MCP, a Go server that lets AI tools interact with the Luno cryptocurrency exchange through an MCP interface.

In plain words
What is it for?
Use them when writing or reviewing Luno API tools, server code, configuration, tests, and related Go components.
Why use it?
They provide the repository layout and coding rules needed to make changes that fit the project’s Go standards and server design.

Instructions file for GitHub Copilot

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/luno/luno-mcp/copilot-instructions
Clone the repo
git clone --depth 1 https://github.com/luno/luno-mcp

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 luno-mcp copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/luno/luno-mcp/copilot-instructions.svg)](https://agentmods.dev/instructions/luno/luno-mcp/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/luno/luno-mcp/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/luno/luno-mcp/copilot-instructions.svg" alt="Measured on agentmods" height="20"></a>
Per session 885 This file is loaded in full into every session.
When invoked 885 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00885 $0.00885
Opus 5 $0.00443 $0.00443
Sonnet 5 $0.00177 $0.00177
Haiku 4.5 $0.00089 $0.00089

Measured 5d ago against content hash b7f9b7b35372, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

luno-mcp 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 5d 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 · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GitHub Copilot Instructions

This document provides guidelines for using GitHub Copilot with the Luno MCP server. These instructions help Copilot understand our codebase structure, standards, and best practices.

Repository Structure

The Luno MCP repository follows a structured organization:

  • /cmd - contains main application entry points
    • /server - main MCP server implementation
  • /internal - internal packages not meant for external use
    • /config - configuration handling
    • /resources - MCP resources implementation
    • /server - server setup and initialization
    • /tools - tools implementation for Luno API interaction
    • /tests - testing utilities

Coding Standards

When generating code with Copilot, ensure it follows these principles:

Go Standards

  • Follow Go idioms and best practices
  • Use error handling with proper context
  • Always either return errors or log them, but never both
  • We very rarely should be ignoring errors. If we do, explicitly ignore it with _ =
  • Implement interfaces only when needed
  • Prefer simple, readable code over clever solutions
  • Use the Go standard library when appropriate
  • Don't worry about test files exceeding the cyclomatic complexity threshold

MCP Server Guidelines

  • Follow the Model Context Protocol (MCP) standards
  • Separate concerns between resources and tools
  • Implement proper error handling and reporting
  • Use the mcp-go library patterns correctly
  • Ensure proper validation of inputs from clients

Tool Dependencies

Mockery
  • Mockery is declared as a tool in the go.mod file, this means that instead of running the mockery command, we run it as go tool mockery
  • Use .EXPECT() rather than .On() for setting expectations in tests

Testing Requirements

  • Write unit tests for all business logic
  • Don't just write tests for the happy path, consider boundary/edge and error cases
  • Tests should be deterministic whenever possible
  • Always write table-driven tests
    • Use spaces rather than _s in test names
    • Structure test cases clearly with descriptive fields
  • Test functions independently when possible to avoid external dependencies
  • Use testify or standard library assertions to check results

Read the full file on GitHub · 101 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. 5d ago First seen · 101 lines · 885 tokens per session scan A b7f9b7b35372

Subscribe to this mod's changes

luno-mcp copilot-instructions.md is an instructions file published in the GitHub repository luno/luno-mcp (25 stars, last pushed 9d ago), licensed MIT. It adds 885 tokens to every session, about $0.0044 per session on Opus 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.