protogrid

Search / app.vercel.cloakcheck-wheat/cloakcheck

cloakcheck

R0· no sign-in

Scan a page for hidden prompt-injection payloads targeting AI agents.

v1.0.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality79good
Trust80of 100
Uptime, 30 days100%
Latency p50250 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "cloakcheck": {
      "type": "http",
      "url": "https://cloakcheck-wheat.vercel.app/api/mcp"
    }
  }
}
claude mcp add --transport http cloakcheck https://cloakcheck-wheat.vercel.app/api/mcp
[mcp_servers.cloakcheck]
url = "https://cloakcheck-wheat.vercel.app/api/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cloakcheck": {
      "type": "remote",
      "url": "https://cloakcheck-wheat.vercel.app/api/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "cloakcheck": {
      "type": "http",
      "url": "https://cloakcheck-wheat.vercel.app/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=cloakcheck&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY2xvYWtjaGVjay13aGVhdC52ZXJjZWwuYXBwL2FwaS9tY3AifQ%3D%3D"
}
{
  "servers": {
    "cloakcheck": {
      "type": "http",
      "url": "https://cloakcheck-wheat.vercel.app/api/mcp"
    }
  }
}
{
  "mcpServers": {
    "cloakcheck": {
      "httpUrl": "https://cloakcheck-wheat.vercel.app/api/mcp"
    }
  }
}
extensions:
  "cloakcheck":
    enabled: true
    name: "cloakcheck"
    type: streamable_http
    uri: "https://cloakcheck-wheat.vercel.app/api/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-03-26; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene71 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • fail
    tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: check_page_for_injection (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
  • pass
    tools.token_costabout 205 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

1 tools, about 205 tokens to load them all · tool set 08c19a367bbc · checked 2026-10-19 10:52 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 80 / 100

no-repository
provenance55
liveness100
freshness85
hygiene80

+dns-namespace +website +reachable +uptime-100% ~updated-36d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://cloakcheck-wheat.vercel.app/api/mcp streamable-httpnoneyes100%250 ms2025-03-262026-10-19

Tools (1)

check_page_for_injectionScan a single web page for content planted to hijack an AI agent reading it -- invisible unicode (zero-width chars, the unicode 'tag' block used for steganographic prompt injection), CSS-hidden instruction text, and instruction-shaped language in alt/title/aria-label attributes a human would never read. Does NOT judge whether visible body text is safe -- only content hidden from normal human reading flow is flagged, so a page that legitimately discusses prompt injection won't false-positive on itself. Call this before an autonomous shopping/browsing agent acts on a page's content (add to cart, follow instructions found on the page, etc).

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "app.vercel.cloakcheck-wheat/cloakcheck",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json",
  "remotes": [
    {
      "url": "https://cloakcheck-wheat.vercel.app/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://cloakcheck-wheat.vercel.app",
  "description": "Scan a page for hidden prompt-injection payloads targeting AI agents."
}