mac_ssh_run · Claude Pascal MCP Server MCP: Risk & Policy

WHAT IT DOES

What mac_ssh_run does on Claude Pascal MCP Server

AI agents invoke mac_ssh_run to trigger actions in Claude Pascal 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.

THE RISK

High Risk

Why mac_ssh_run needs a policy

The 'mac_ssh_run' tool falls under Execute because it triggers external operations (SSH command execution) whose effects depend on provided arguments and cannot be easily constrained. While the description is empty, the name and server context clearly indicate remote command execution capability.

From the tool's definition Tool name 'mac_ssh_run' indicates execution of commands via SSH on macOS systems. Within the context of a Pascal/Delphi MCP server that enables compilation, running of desktop applications, and device interaction, this tool permits arbitrary command execution…

Documented attack patterns abuse exactly the kind of access mac_ssh_run gives an agent:

POLICY

How to control mac_ssh_run

PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Pascal MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for mac_ssh_run:

policy.json

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

mac_ssh_run 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.

Create a free account and register Claude Pascal MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 53 Claude Pascal MCP Server tools →

Execute tools on other servers

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Go deeper

High-risk tools in Claude Pascal MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about mac_ssh_run

What does the mac_ssh_run tool do? +

mac_ssh_run. It is categorised as a Execute tool in the Claude Pascal 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 mac_ssh_run? +

Register the Claude Pascal MCP Server MCP server in PolicyLayer and add a rule for mac_ssh_run: 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 Claude Pascal MCP Server. Nothing to install.

What risk level is mac_ssh_run? +

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

Can I rate-limit mac_ssh_run? +

Yes. Add a rate_limit block to the mac_ssh_run 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 mac_ssh_run completely? +

Set action: deny in the PolicyLayer policy for mac_ssh_run. 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 mac_ssh_run? +

mac_ssh_run is provided by the Claude Pascal MCP Server MCP server (tina4stack/claude-pascal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Claude Pascal MCP Server tool call.

Start from Claude Pascal MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

Free to start. No card required.

53 Claude Pascal MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.