Arc Security

com.arcselfPublished by arcself.comv0.5.1Updated Oct 24, 2026

Scan AI agent skills for 25 attack classes + runtime monitoring. 1,316+ findings.

VerifiedSTDIODesktop onlySecurity & Monitoring AI & ML

Server details

Identifier: com.arcself/arc-security
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 16, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to arcself.com. It runs from a package rather than a hosted endpoint, so there is no endpoint to match against that domain.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Scans AI agent skills for 25 attack classes and provides runtime monitoring, reporting security findings.

What you can do: Arc Security is a local MCP server that scans AI agent skills for 25 attack classes and performs runtime monitoring. According to its registry description, it has produced over 1,316 findings. The manifest lists no tools, so the exact tool names and parameters are not documented here.
When to use it: Consider it when you install or maintain AI agent skills and want a security check plus ongoing runtime monitoring. It is aimed at desktop use, so it suits a local development or review workflow rather than a shared remote service.
Requirements: It runs as a local process over stdio, installed from the npm package arc-security-mcp, so Node.js and npm are needed. The manifest declares no authentication, environment variables, or headers. It is desktop only and not web executable.

Before you install

The manifest declares no credentials, but the description says it monitors agents at runtime, so review what data it observes and where findings are stored before installing. No tool list is published, so verify its actual behavior after installation.

Installation

In SourceWeft

Open Arc Security in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v0.5.1LatestSep 16, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.