What is luno-mcp copilot-instructions.md?

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

Use them when writing or reviewing Luno API tools, server code, configuration, tests, and related Go components.

They provide the repository layout and coding rules needed to make changes that fit the project’s Go standards and server design.

How luno/luno-mcp configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to luno/luno-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/luno/luno-mcp/main/.github/copilot-instructions.md

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/luno/luno-mcp/copilot-instructions/github.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/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/luno/luno-mcp/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/luno/luno-mcp/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" 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. 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	$0.00885	$0.00885
Opus 5.5	$0.00354	$0.00354
Sonnet 5.5	$0.00177	$0.00177
Haiku 4.5	$0.00089	$0.00089

Measured 2mo ago against content hash b7f9b7b35372, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 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 · 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.

2mo 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 (29 stars, last pushed 7d ago), licensed MIT. It adds 885 tokens to every session, about $0.0035 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.

Finance and fintech arbitrage cryptocurrency mcp trading

luno-mcp copilot-instructions.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
luno-mcp copilot-instructions.mdluno/luno-mcp	Instructions file	29	7d ago	MIT	A	885	GitHub Copilot
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

luno-mcp: Instructions file for GitHub Copilot