INDIVIDUAL MCP TOOL

check_page_for_agent_hijacking

Fetch a URL and scan it for content planted to hijack an AI agent visiting it rather than to inform a human: invisible unicode (zero-width joiners, steganographic tag-block characters), CSS-hidden text (display:none, opacity:0, off-screen) paired with instruction-shaped language ('ignore previous instructions', 'add to cart and checkout', fake system-role text), and instruction-shaped phrases in alt/title/aria-label attributes or meta tags.

edgethirteen.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://www.edgethirteen.com/api/mcp/cloakcheck

No auth detected

Connect to this endpoint to inspect the live schema for check_page_for_agent_hijacking and invoke it with your own arguments.

Indexed input schema

{}

Risk classification

Inferred read-only · medium confidence · heuristic, not a guarantee.

A tool name or description suggests retrieving external content.

Parent server

edgethirteen.com

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.cloakcheck]
url = "https://www.edgethirteen.com/api/mcp/cloakcheck"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "cloakcheck": {
      "type": "http",
      "url": "https://www.edgethirteen.com/api/mcp/cloakcheck"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: cloakcheck
Remote MCP URL: https://www.edgethirteen.com/api/mcp/cloakcheck

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "cloakcheck": {
      "url": "https://www.edgethirteen.com/api/mcp/cloakcheck"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "cloakcheck": {
      "type": "http",
      "url": "https://www.edgethirteen.com/api/mcp/cloakcheck"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "cloakcheck",
  "transport": "streamable-http",
  "url": "https://www.edgethirteen.com/api/mcp/cloakcheck"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

Related tools

No related indexed tools.