mcp

mcp is a cursor rule for Cursor from davidl71/project-management-automation. It costs 0 tokens per session (171 once invoked), scanned A, original, MIT.

Rules for building MCP tools, which let an AI assistant call defined functions in another program or service.

In plain words
What is it for?
Creating MCP tools with clear inputs and outputs, JSON responses, usage hints, logging, and server registration.
Why use it?
They provide a consistent way to design tools, describe their results, handle errors, record activity, and register them with the server.

Cursor rule for 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/davidl71/project-management-automation/mcp
Clone the repo
git clone --depth 1 https://github.com/davidl71/project-management-automation

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 mcp

README.md
[![agentmods](https://agentmods.dev/badge/rules/davidl71/project-management-automation/mcp.svg)](https://agentmods.dev/rules/davidl71/project-management-automation/mcp)
Your own site
<a href="https://agentmods.dev/rules/davidl71/project-management-automation/mcp"><img src="https://agentmods.dev/badge/rules/davidl71/project-management-automation/mcp.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 171 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00000 $0.00171
Opus 5 $0.00000 $0.00086
Sonnet 5 $0.00000 $0.00034
Haiku 4.5 $0.00000 $0.00017

Measured 4d ago against content hash 3e0711d12f57, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mcp 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.

.cursor/rules/mcp.mdc · 28 lines

What it actually says

MCP Tool Development Rules

Tool Design

  • Each tool should do one thing well
  • Use clear, descriptive function names
  • Include comprehensive docstrings with HINT

HINT Format

  • Start with: [HINT: Brief description. Key outputs.]
  • Include: 📊 Output, 🔧 Side Effects, 📁 Files, ⏱️ Runtime
  • Add example prompts

Error Handling

  • Return JSON responses always
  • Use format_success_response/format_error_response
  • Log execution with log_automation_execution

Registration

  • Register tools in server.py
  • Follow existing import patterns
  • Include both relative and absolute import fallbacks
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. 4d ago First seen · 28 lines · 0 tokens per session scan A 3e0711d12f57

Subscribe to this mod's changes

mcp is a cursor rule published in the GitHub repository davidl71/project-management-automation (1 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 171 tokens. 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.