What is mcp-adr-analysis-server copilot-instructions.md?

Project instructions for an MCP server that helps AI assistants analyse software architecture and manage Architectural Decision Records, written records of important technical choices.

Use them when working on the server, its 73 MCP tools, AI analysis, caching, knowledge graphs, or memory features.

They give coding agents the project’s structure and TypeScript rules, reducing mistakes when changing an ESM-only codebase.

How tosin2013/mcp-adr-analysis-server configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to tosin2013/mcp-adr-analysis-server. 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/tosin2013/mcp-adr-analysis-server/main/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/tosin2013/mcp-adr-analysis-server

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/tosin2013/mcp-adr-analysis-server/copilot-instructions/github.svg)](https://agentmods.dev/instructions/tosin2013/mcp-adr-analysis-server/copilot-instructions)

Your own site

<a href="https://agentmods.dev/instructions/tosin2013/mcp-adr-analysis-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/tosin2013/mcp-adr-analysis-server/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/tosin2013/mcp-adr-analysis-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/tosin2013/mcp-adr-analysis-server/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,852 This file is loaded in full into every session.

When invoked 2,852 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	$0.02852	$0.02852
Opus 5.5	$0.01141	$0.01141
Sonnet 5.5	$0.00570	$0.00570
Haiku 4.5	$0.00285	$0.00285

Measured 2mo ago against content hash 5e648b48b931, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-adr-analysis-server 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 · 280 lines

How it starts

The opening of the file, as written. The whole thing — 280 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP ADR Analysis Server - AI Coding Agent Instructions

Project Overview

This is a Model Context Protocol (MCP) server that provides AI-powered architectural analysis and ADR (Architectural Decision Record) management. The server integrates with AI assistants (Claude, Cline, Cursor) via the MCP protocol and uses OpenRouter.ai for generating actual analysis results instead of prompts.

Core Architecture: MCP server (src/index.ts) exposes 73 tools through @modelcontextprotocol/sdk that call into utilities for AI execution, caching, session/tool-usage tracking, and memory management.

Critical Technical Conventions

ESM-Only Module System

Pure ESM (no CommonJS): All imports must use .js extensions even for TypeScript files
Use import.meta.url (never __dirname). Helper: getCurrentDirCompat() from src/utils/directory-compat.ts
Example: import { foo } from './bar.js' (note .js extension)
package.json declares "type": "module" and targets ES2022

TypeScript Configuration

Strict mode enabled: All strict type checks are enforced (see tsconfig.json)
Output directory: dist/src/ with source maps and declarations
Tree-sitter native modules are mocked in Vitest (tests/__mocks__/)

Testing Requirements

Coverage threshold: 85% (branches, functions, lines, statements)
Vitest with native ESM and TypeScript support
Run tests with: npm test or make test
Tree-sitter modules must be mocked for Vitest environment

Development Workflows

Build & Run

npm run build      # Clean + TypeScript compile to dist/
npm start          # Run production server from dist/
npm run dev        # Development server with tsx hot-reload
make ci            # Full pipeline: security, lint, test, build

Testing Strategy

npm test                      # All tests with Vitest
npm run test:coverage         # Generate coverage report
npm run test:unit             # Unit tests via scripts/test-infrastructure.sh
npm run test:integration      # Integration tests
npm run test:mcp-interactive  # Test with MCP Inspector

Read the full file on GitHub · 280 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 Changed · +13 tokens per session 5e648b48b931
2mo ago First seen · 280 lines · 2,839 tokens per session scan A 8aa87a868c00

Subscribe to this mod's changes

mcp-adr-analysis-server copilot-instructions.md is an instructions file published in the GitHub repository tosin2013/mcp-adr-analysis-server (35 stars, last pushed 2d ago), licensed MIT. It adds 2,852 tokens to every session, about $0.0114 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.

adr ai-agents architectural-decision-records architecture claude mcp-server

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mcp-adr-analysis-server: Instructions file for GitHub Copilot