system.daemon.start · X Archive Daemon MCP: Risk & Policy

WHAT IT DOES

What system.daemon.start does on X Archive Daemon

AI agents invoke system.daemon.start to trigger actions in X Archive Daemon. 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 system.daemon.start needs a policy

Starting a daemon process is an execution action that spawns a persistent background process on the local machine. It does not merely read data or write records, but actively triggers a running system-level operation. Misuse could result in unintended resource consumption or interference with system state, warranting medium severity.

From the tool's definition 'Starts the local x-archive daemon process' — triggers an external background process/service on the local system

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

system.daemon.start Rate-limited

system.daemon.start 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": {
    "system.daemon.start": {
      "limits": [
        {
          "counter": "system.daemon.start_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 X Archive Daemon, so you can run agents against it safely.

FAQ

Questions about system.daemon.start

What does the system.daemon.start tool do? +

Starts the local x-archive daemon process if it is not already running. It is categorised as a Execute tool in the X Archive Daemon MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on system.daemon.start? +

Register the X Archive Daemon MCP server in PolicyLayer and add a rule for system.daemon.start: 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 X Archive Daemon. Nothing to install.

What risk level is system.daemon.start? +

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

Can I rate-limit system.daemon.start? +

Yes. Add a rate_limit block to the system.daemon.start 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 system.daemon.start completely? +

Set action: deny in the PolicyLayer policy for system.daemon.start. 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 system.daemon.start? +

system.daemon.start is provided by the X Archive Daemon MCP server (menesekinci/x-archive-daemon). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.