What is mcp-markdown-manager copilot-instructions.md?

A set of AI coding instructions for MCP Markdown Manager, a full-stack TypeScript application for managing Markdown articles with a web interface, API, MCP server, and PostgreSQL database.

Use it to install dependencies, start the database and development servers, build the application, run TypeScript checks, and execute the project's tests.

It gives an AI assistant the project's architecture, required environment settings, development commands, build steps, type checks, and test commands.

mcp-markdown-manager copilot-instructions.md — Instructions file for GitHub Copilot by joelmnz: A set of AI coding instructions for MCP Mark

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/joelmnz/mcp-markdown-manager/copilot-instructions

Clone the repo

git clone --depth 1 https://github.com/joelmnz/mcp-markdown-manager

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/joelmnz/mcp-markdown-manager/copilot-instructions.svg)](https://agentmods.dev/instructions/joelmnz/mcp-markdown-manager/copilot-instructions)

Your own site

<a href="https://agentmods.dev/instructions/joelmnz/mcp-markdown-manager/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/joelmnz/mcp-markdown-manager/copilot-instructions.svg" alt="Measured on agentmods" height="20"></a>

Per session 878 This file is loaded in full into every session.

When invoked 878 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.

Model	Per session	Once invoked
Fable 5	$0.00878	$0.00878
Opus 5	$0.00439	$0.00439
Sonnet 5	$0.00176	$0.00176
Haiku 4.5	$0.00088	$0.00088

Measured 4d ago against content hash 995353ba7af3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mcp-markdown-manager 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 4d 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 · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP Markdown Manager - AI Coding Instructions

Project Overview

This is a monolithic TypeScript full-stack application for AI-powered markdown article management. Stack: Bun runtime, React frontend, Node.js backend (API + MCP), PostgreSQL + pgvector database.

Quick Start Commands

Essential Commands

# Install dependencies
bun install

# Start Database (Required)
bun run dc:db        # Starts Postgres container
bun run db:health    # Verify DB connection

# Development (requires two terminals)
bun run dev:backend    # Terminal 1 - Backend with auto-reload
bun run dev:frontend   # Terminal 2 - Frontend dev server

# Build
bun run build          # Builds frontend with hashed assets

# Type checking
bun run typecheck      # TypeScript validation

# Testing (Individual scripts)
bun scripts/test-parsing.ts
bun scripts/test-import.ts
bun scripts/test-error-handling.ts

Environment Setup

Required environment variables (see .env.example):

AUTH_TOKEN: Bearer token for all interfaces (Web, API, MCP)
DB_HOST, DB_PORT, DB_NAME, DB_USER, DB_PASSWORD: PostgreSQL config
SEMANTIC_SEARCH_ENABLED: Enable/disable vector embeddings (default: false)
MCP_SERVER_ENABLED: Enable/disable MCP server (default: true)

Architecture Patterns

Monolithic Structure

src/backend/
├── server.ts        # Entry point (API, MCP, static)
├── services/        # Business logic
│   ├── articles.ts         # Main facade (CRUD + Embeddings)
│   ├── databaseArticles.ts # DB operations
│   └── database.ts         # DB connection pool
├── mcp/             # MCP protocol implementation
└── routes/          # REST API endpoints

Database-First with Compatibility Layer

Storage: PostgreSQL is the source of truth.
Compatibility: services/articles.ts maintains a file-like interface (Article type) for backward compatibility.
Filenames: Virtual concept derived from slug + .md.
Vector Search: Uses pgvector for semantic search. Handled via embedding.ts and vectorIndex.ts.

Read the full file on GitHub · 100 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.

4d ago First seen · 100 lines · 878 tokens per session scan A 995353ba7af3

Subscribe to this mod's changes

mcp-markdown-manager copilot-instructions.md is an instructions file published in the GitHub repository joelmnz/mcp-markdown-manager (2 stars, last pushed 3mo ago), licensed MIT. It adds 878 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 2026-08-31.

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

mcp-markdown-manager copilot-instructions.md