omarchy_system_lock

Lock the computer and turn off the display [group:system]

SERVEROmarchy-MCP SOURCEhlsitechio/Omarchy-MCP

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/omarchy-mcp/omarchy-system-lock.md

WHAT IT DOES

What omarchy_system_lock does on Omarchy-MCP

AI agents invoke omarchy_system_lock to trigger actions in Omarchy-MCP. 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.

RISK

Why omarchy_system_lock is rated High

Triggers a system lock and display off action on the desktop.

From the tool's definition Lock the computer and turn off the display

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs omarchy_system_lock safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Omarchy-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For omarchy_system_lock, this is the rule to start with:

omarchy_system_lock Rate-limited

omarchy_system_lock 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": {
    "omarchy_system_lock": {
      "limits": [
        {
          "counter": "omarchy_system_lock_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Omarchy-MCP, apply this rule, and every omarchy_system_lock call is checked against it from then on.

FAQ

Questions about omarchy_system_lock

What does the omarchy_system_lock tool do? +

Lock the computer and turn off the display [group:system]. It is categorised as a Execute tool in the Omarchy-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on omarchy_system_lock? +

Register the Omarchy MCP server in PolicyLayer and add a rule for omarchy_system_lock: 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 Omarchy-MCP. Nothing to install.

What risk level is omarchy_system_lock? +

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

Can I rate-limit omarchy_system_lock? +

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

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

omarchy_system_lock is provided by the Omarchy MCP server (hlsitechio/Omarchy-MCP). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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