00-project-overview

00-project-overview is a cursor rule for Cursor from MrG4dget/5e-tools-mcp. It costs 205 tokens per session, scanned A, original, MIT.

Project rules for an MCP server that gives AI tools access to Dungeons & Dragons 5e game data in a 5eTools-style format. They define which source data to use, which rules version to prefer, and how to retrieve and cite entries.

In plain words
What is it for?
Searching for and retrieving monsters, spells, and items; rendering copied 5eTools entries; resolving special tags; and citing game entities with stable references.
Why use it?
They help prevent made-up rules and inconsistent answers when an agent works with D&D data.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

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 rules/mrg4dget/5e-tools-mcp/00-project-overview
Clone the repo
git clone --depth 1 https://github.com/MrG4dget/5e-tools-mcp

Made for: Cursor.

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 00-project-overview

README.md
[![agentmods](https://agentmods.dev/badge/rules/mrg4dget/5e-tools-mcp/00-project-overview.svg)](https://agentmods.dev/rules/mrg4dget/5e-tools-mcp/00-project-overview)
Your own site
<a href="https://agentmods.dev/rules/mrg4dget/5e-tools-mcp/00-project-overview"><img src="https://agentmods.dev/badge/rules/mrg4dget/5e-tools-mcp/00-project-overview.svg" alt="Measured on agentmods" height="20"></a>
Per session 205 This file is loaded in full into every session.
When invoked 205 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 5.1 $0.00205 $0.00205
Opus 5 $0.00102 $0.00102
Sonnet 5 $0.00041 $0.00041
Haiku 4.5 $0.00020 $0.00020

Measured 5d ago against content hash 6c941f750ebc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

00-project-overview 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.

.cursor/rules/00-project-overview.mdc · 23 lines

What it actually says

Project Overview

This repository provides an MCP server that exposes 5eTools-style D&D data to LLMs.

Hard Rules

  • Treat ./5etools-src as read-only input.
  • Prefer 2024 rules when duplicates exist, unless explicitly asked for 2014.
  • Never hallucinate rules text. If unsure: call a tool.
  • Cite entities using URIs: fiveet://entity/{kind}/{source}/{slug}.

What to do by default

  • When asked about monsters/spells/items: search_entitiesget_entity (markdown).
  • When given 5eTools entries blobs: call render_entries.
  • When given {@tag ...}: call resolve_tag.

@src/server.ts @ARCHITECTURE.md

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 · 23 lines · 205 tokens per session scan A 6c941f750ebc

Subscribe to this mod's changes

00-project-overview is a cursor rule published in the GitHub repository MrG4dget/5e-tools-mcp (2 stars, last pushed 1y ago), licensed MIT. It adds 205 tokens to every session, about $0.0010 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.