trentina

trentina is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from crunchtools/mcp-trentina. Its token cost is not measured, scanned A, original, AGPL-3.0.

A locally running security gateway for traffic sent to and from AI agents. It uses three layers of protection against prompt injection, where hidden instructions try to make an agent do something unintended.

In plain words
What is it for?
Quarantining agent traffic and applying layered protection against prompt-injection attacks.
Why use it?
It adds a checkpoint between an AI agent and its incoming or outgoing traffic. This can help reduce the risk that malicious instructions reach the agent or affect its actions.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Written for no agent in particular: it speaks MCP, so any client can run it.

Good fit Quarantining agent traffic and applying layered protection against prompt-injection attacks.

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Install with agentmods
npx agentmods add mcp/crunchtools/mcp-trentina/trentina
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/crunchtools/mcp-trentina

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

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 trentina

README.md
[![agentmods](https://agentmods.dev/badge/mcp/crunchtools/mcp-trentina/trentina/github.svg)](https://agentmods.dev/mcp/crunchtools/mcp-trentina/trentina)
Your own site
<a href="https://agentmods.dev/mcp/crunchtools/mcp-trentina/trentina"><img src="https://agentmods.dev/badge/mcp/crunchtools/mcp-trentina/trentina/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 trentina

Your own site · 80×15
<a href="https://agentmods.dev/mcp/crunchtools/mcp-trentina/trentina"><img src="https://agentmods.dev/badge/mcp/crunchtools/mcp-trentina/trentina.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

trentina 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 11d 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.

server.json · 9 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 11d ago First seen · 9 lines scan A 7a78c65b9cb8

Subscribe to this mod's changes

trentina is an MCP server published in the GitHub repository crunchtools/mcp-trentina (9 stars, last pushed 5d ago), licensed AGPL-3.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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.