font_set

Resolve an installed font, apply and verify its exact canonical name, and automatically restore the prior exact font after any mutation failure.

SERVEROmarchy-MCP SOURCEhlsitechio/Omarchy-MCP

Medium RISK CLASS

Category Write

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/font-set.md

WHAT IT DOES

What font_set does on Omarchy-MCP

AI agents use font_set to create or update resources in Omarchy-MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Omarchy-MCP environment.

RISK

Why font_set is rated Medium

Modifies system font settings but is reversible via automatic restore on failure.

From the tool's definition apply and verify its exact canonical name, automatically restore prior font

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs font_set 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 font_set, this is the rule to start with:

font_set Rate-limited

font_set stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "font_set": {
      "limits": [
        {
          "counter": "font_set_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 font_set call is checked against it from then on.

FAQ

Questions about font_set

What does the font_set tool do? +

Resolve an installed font, apply and verify its exact canonical name, and automatically restore the prior exact font after any mutation failure. It is categorised as a Write tool in the Omarchy-MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on font_set? +

Register the Omarchy MCP server in PolicyLayer and add a rule for font_set: 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 font_set? +

font_set is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit font_set? +

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

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

font_set 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.

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