run_crypto_scan · Sentinel MCP Server MCP: Risk & Policy

WHAT IT DOES

What run_crypto_scan does on Sentinel MCP Server

AI agents invoke run_crypto_scan to trigger actions in Sentinel MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why run_crypto_scan needs a policy

This tool executes testssl.sh, a third-party SSL/TLS security scanner, against specified targets. While intended for legitimate security testing, execution of external scanning tools creates side effects (network connections, system load, potential service disruption) whose impact depends on arguments (target host, scan depth).

From the tool's definition Tool name 'run_crypto_scan' and description 'Run SSL/TLS Compliance Scan (testssl.sh)' indicate execution of an external scanning tool (testssl.sh).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

run_crypto_scan Rate-limited

run_crypto_scan stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "run_crypto_scan": {
      "limits": [
        {
          "counter": "run_crypto_scan_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Sentinel MCP Server, so you can run agents against it safely.

FAQ

Questions about run_crypto_scan

What does the run_crypto_scan tool do? +

Run SSL/TLS Compliance Scan (testssl.sh). It is categorised as a Execute tool in the Sentinel MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on run_crypto_scan? +

Register the Sentinel MCP Server MCP server in PolicyLayer and add a rule for run_crypto_scan: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Sentinel MCP Server. Nothing to install.

What risk level is run_crypto_scan? +

run_crypto_scan is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit run_crypto_scan? +

Yes. Add a rate_limit block to the run_crypto_scan rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block run_crypto_scan completely? +

Set action: deny in the PolicyLayer policy for run_crypto_scan. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides run_crypto_scan? +

run_crypto_scan is provided by the Sentinel MCP Server MCP server (pranjal-lnct/scurity-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.