What is todo-md-mcp CLAUDE.md?

Repository instructions for an MCP server that lets AI assistants manage to-do lists stored in Markdown files. They describe the project structure, development commands, and main components.

Use them when developing or maintaining the server, especially its Markdown to-do handling, MCP communication, and TypeScript code.

They give the coding agent the project context needed to change the server consistently and run its build, tests, linting, and formatting checks.

How danjdewhurst/todo-md-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to danjdewhurst/todo-md-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/danjdewhurst/todo-md-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/danjdewhurst/todo-md-mcp

Made for: Claude Code.

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/danjdewhurst/todo-md-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/danjdewhurst/todo-md-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/danjdewhurst/todo-md-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/danjdewhurst/todo-md-mcp/claude-md/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/danjdewhurst/todo-md-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/danjdewhurst/todo-md-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 472 This file is loaded in full into every session.

When invoked 472 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	$0.00472	$0.00472
Opus 5	$0.00236	$0.00236
Sonnet 5	$0.00094	$0.00094
Haiku 4.5	$0.00047	$0.00047

Measured 9d ago against content hash 2927b59199df, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

todo-md-mcp CLAUDE.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 9d 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.

CLAUDE.md · 47 lines

What it actually says

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

This is an MCP (Model Context Protocol) server that provides todo list functionality backed by markdown files. The server allows AI assistants to manage todo items in a standardized markdown format using MCP tools.

Published Package: Available on NPM as @danjdewhurst/todo-md-mcp NPM URL: https://www.npmjs.com/package/@danjdewhurst/todo-md-mcp

Development Commands

npm run build - Build the TypeScript project
npm run dev - Build and run the server
npm run watch - Watch for changes and rebuild
npm test - Run the test suite with Vitest
npm run test:watch - Run tests in watch mode
npm run lint - Run ESLint
npm run format - Format code with Prettier

Architecture

The project has a clean three-layer architecture:

Core Components

index.ts: Main MCP server implementation that handles protocol communication and tool registration
todoManager.ts: Core business logic for CRUD operations and markdown parsing/formatting
types.ts: TypeScript type definitions for todos and requests

Key Patterns

Uses ES modules ("type": "module" in package.json)
Strict TypeScript configuration with comprehensive type checking
MCP protocol compliance with standardized tool definitions
Markdown-based persistence with UUID tracking via HTML comments
File format: - [x] Task text

Tool Interface

The server exposes 5 MCP tools:

list_todos - Lists all todos with statistics
add_todo - Creates new todo items
update_todo - Modifies existing todos (text/completion status)
delete_todo - Removes specific todos by ID
clear_completed - Bulk removal of completed items

Storage Strategy

Todos stored in todo.md in project root
Each todo has persistent UUID for reliable updates
Standard markdown checkbox syntax with hidden ID comments
Automatic file creation when first todo is added

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.

9d ago First seen · 47 lines · 472 tokens per session scan A 2927b59199df

Subscribe to this mod's changes

todo-md-mcp CLAUDE.md is an instructions file published in the GitHub repository danjdewhurst/todo-md-mcp (6 stars, last pushed 1y ago), licensed MIT. It adds 472 tokens to every session, about $0.0024 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.

Project management

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todo-md-mcp: Instructions file for Claude Code