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OSC MCP Server

OSC MCP Server

by anteriovieira
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Hybrid

osc_set_gate

Adjusts the gate threshold for a specific channel on digital mixers like Behringer X32 and Midas M32 to control when audio passes through based on signal level.

Instructions

Set gate threshold for a channel

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "channel": "<channel>",
      "threshold": "<threshold>"
    },
    "name": "osc_set_gate"
  }
}

Input Schema

NameRequiredDescriptionDefault
channelYesChannel number (1-32)
thresholdYesGate threshold in dB (-80 to 0)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It implies a write operation ('Set') but doesn't specify if this requires special permissions, whether changes are immediate or reversible, or any side effects like affecting audio processing. This leaves significant gaps in understanding the tool's behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence that directly states the tool's purpose without any wasted words. It is front-loaded and appropriately sized for its simple function, making it highly concise and well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the lack of annotations and output schema, the description is incomplete for a mutation tool. It doesn't cover behavioral aspects like error handling, response format, or interaction with other tools (e.g., 'osc_set_gate_on'), leaving the agent with insufficient context for reliable use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, clearly documenting both parameters with ranges (channel 1-32, threshold -80 to 0 dB). The description adds no additional semantic meaning beyond what the schema provides, so it meets the baseline for adequate but unenhanced parameter documentation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb ('Set') and resource ('gate threshold for a channel'), making the purpose specific and understandable. However, it doesn't differentiate from sibling tools like 'osc_set_gate_on' or 'osc_get_gate', which handle related gate operations, so it falls short of a perfect score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives such as 'osc_set_gate_on' (which likely toggles gate activation) or 'osc_get_gate' (which retrieves gate settings). The description lacks context about prerequisites or exclusions, offering minimal usage direction.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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