audio_device_set_default

Select an exactly enumerated local output sink or input source, move active streams through Omarchy, verify the default, and roll back on mismatch. Supports dry-run.

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/audio-device-set-default.md

WHAT IT DOES

What audio_device_set_default does on Omarchy-MCP

AI agents invoke audio_device_set_default 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 audio_device_set_default is rated High

Switches audio devices and moves active streams; affects system audio configuration.

From the tool's definition move active streams, verify default, roll back on mismatch

Attacks that exploit this kind of access

RECOMMENDED RULE

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

audio_device_set_default Rate-limited

audio_device_set_default 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": {
    "audio_device_set_default": {
      "limits": [
        {
          "counter": "audio_device_set_default_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 audio_device_set_default call is checked against it from then on.

FAQ

Questions about audio_device_set_default

What does the audio_device_set_default tool do? +

Select an exactly enumerated local output sink or input source, move active streams through Omarchy, verify the default, and roll back on mismatch. Supports dry-run. 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 audio_device_set_default? +

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

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

Can I rate-limit audio_device_set_default? +

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

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

audio_device_set_default 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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