upgrade_server_agent · Morpheus MCP Server MCP

WHAT IT DOES

What upgrade_server_agent does on Morpheus MCP Server

AI agents invoke upgrade_server_agent to trigger actions in Morpheus 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 upgrade_server_agent needs a policy

Upgrading an agent involves executing an installation/update process on a remote server. This is an Execute-category action as it triggers an external operation with effects dependent on the target server. It is not purely Write (data modification) nor Destructive (not irreversible deletion), but it does execute a software change on infrastructure.

From the tool's definition 'Upgrade the Morpheus agent on a server to the latest version' — triggers an agent software upgrade operation on a remote server

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upgrade_server_agent Rate-limited

upgrade_server_agent 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": {
    "upgrade_server_agent": {
      "limits": [
        {
          "counter": "upgrade_server_agent_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 Morpheus MCP Server, so you can run agents against it safely.

FAQ

Questions about upgrade_server_agent

What does the upgrade_server_agent tool do? +

Upgrade the Morpheus agent on a server to the latest version. It is categorised as a Execute tool in the Morpheus 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 upgrade_server_agent? +

Register the Morpheus MCP Server MCP server in PolicyLayer and add a rule for upgrade_server_agent: 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 Morpheus MCP Server. Nothing to install.

What risk level is upgrade_server_agent? +

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

Can I rate-limit upgrade_server_agent? +

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

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

upgrade_server_agent is provided by the Morpheus MCP Server MCP server (nixndme/morpheus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.