mcp-integration

mcp-integration is a cursor rule for Cursor from r-huijts/ethics-check-mcp. It costs 7 tokens per session (109 once invoked), scanned A, original, MIT.

Implementation rules for building an MCP server with the official MCP software kit. MCP is a standard way for an AI assistant to discover and call tools provided by another program.

In plain words
What is it for?
Use them when implementing or extending an MCP server, especially one that communicates with Claude Desktop through standard input and output.
Why use it?
They provide a consistent structure for registering tools, validating inputs, running the requested operation, and formatting responses.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use them when implementing or extending an MCP server, especially one that communicates with Claude Desktop through standard input and output.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/r-huijts/ethics-check-mcp/mcp-integration
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.

Clone the repo
git clone --depth 1 https://github.com/r-huijts/ethics-check-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 mcp-integration

README.md
[![agentmods](https://agentmods.dev/badge/rules/r-huijts/ethics-check-mcp/mcp-integration/github.svg)](https://agentmods.dev/rules/r-huijts/ethics-check-mcp/mcp-integration)
Your own site
<a href="https://agentmods.dev/rules/r-huijts/ethics-check-mcp/mcp-integration"><img src="https://agentmods.dev/badge/rules/r-huijts/ethics-check-mcp/mcp-integration/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.

agentmods 80×15 button for mcp-integration

Your own site · 80×15
<a href="https://agentmods.dev/rules/r-huijts/ethics-check-mcp/mcp-integration"><img src="https://agentmods.dev/badge/rules/r-huijts/ethics-check-mcp/mcp-integration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 7 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 109 The whole file, excluding the scripts and references it only reads on demand.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00007 $0.00109
Opus 5.5 $0.00003 $0.00044
Sonnet 5.5 $0.00001 $0.00022
Haiku 4.5 $0.00001 $0.00011

Measured 22d ago against content hash fe69f145999e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-integration 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 22d 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-integration.mdc · 13 lines

What it actually says

MCP integration notes

  • Transport: stdio (StdioServerTransport)
  • Hosts typically run one process per conversation — process-scoped default sessionId relies on that
  • Prefer the companion skill over always-on host rules for call habits
  • Analysis text is sent to the configured second-opinion provider (Gemini by default, or local Ollama)
  • Do not claim automatic background interception; tools run when invoked
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. 22d ago Changed · -55 lines · +7 tokens per session fe69f145999e
  2. 2mo ago First seen · 68 lines · 0 tokens per session scan A 166b62962d40

Subscribe to this mod's changes

mcp-integration is a cursor rule published in the GitHub repository r-huijts/ethics-check-mcp (5 stars, last pushed 22d ago), licensed MIT. It adds 7 tokens to every session and 109 once invoked, about $0.0000 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 2026-08-31.