mhs5200_set_phase · MHS-5200A MCP Server MCP: Risk & Policy

WHAT IT DOES

What mhs5200_set_phase does on MHS-5200A MCP Server

AI agents invoke mhs5200_set_phase to trigger actions in MHS-5200A 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 mhs5200_set_phase needs a policy

Based on the naming convention and sibling tools, this tool likely sets the phase of a signal channel on a physical MHS-5200A signal generator. This constitutes an Execute-level action as it triggers an external hardware operation. The description is empty, lowering confidence. Severity is medium as misuse could affect connected equipment or experiments but has limited blast radius.

From the tool's definition Tool name: mhs5200_set_phase; description is empty. Sibling tools suggest control of physical signal generator hardware (frequency, amplitude, waveform, sweep settings) via serial connection.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mhs5200_set_phase Rate-limited

mhs5200_set_phase 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": {
    "mhs5200_set_phase": {
      "limits": [
        {
          "counter": "mhs5200_set_phase_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 MHS-5200A MCP Server, so you can run agents against it safely.

FAQ

Questions about mhs5200_set_phase

What does the mhs5200_set_phase tool do? +

mhs5200_set_phase. It is categorised as a Execute tool in the MHS-5200A 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 mhs5200_set_phase? +

Register the MHS-5200A MCP Server MCP server in PolicyLayer and add a rule for mhs5200_set_phase: 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 MHS-5200A MCP Server. Nothing to install.

What risk level is mhs5200_set_phase? +

mhs5200_set_phase is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit mhs5200_set_phase? +

Yes. Add a rate_limit block to the mhs5200_set_phase 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 mhs5200_set_phase completely? +

Set action: deny in the PolicyLayer policy for mhs5200_set_phase. 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 mhs5200_set_phase? +

mhs5200_set_phase is provided by the MHS-5200A MCP Server MCP server (naonaome/mhs5200a-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.