tdmcp

Create VCV Rack bridge

create_vcv_rack_bridge

Build a VCV Rack OSC/MIDI/CV bridge in TouchDesigner with channel mapping and setup notes to enable external modulation.

Instructions

Create a VCV Rack OSC/MIDI/CV modulation bridge scaffold with channel mapping and setup notes.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "create_vcv_rack_bridge"
  }
}

Input Schema

Name	Required	Description	Default
`mode`	No		osc
`name`	No	Generated baseCOMP name.	vcv_rack_bridge
`active`	No
`bipolar`	No
`rack_host`	No		127.0.0.1
`send_port`	No
`midi_device`	No
`parent_path`	No	Parent COMP for the VCV scaffold.	/project1
`receive_port`	No
`channel_count`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.13.1Aug 2, 2026

TDQS

B3.3/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=false and destructiveHint=false, and the description is consistent with them, so there is no contradiction. It adds some context about the deliverable ('channel mapping and setup notes') but does not disclose side effects such as what is written under parent_path or whether a live VCV Rack connection is required.

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?

A single front-loaded sentence with no filler; every phrase adds information (protocols, modulation bridge, scaffold, channel mapping, setup notes). It is appropriately sized for a tool description.

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?

With 10 parameters, 20% schema coverage, and no output schema, this one-line description leaves a large configuration surface largely unexplained. It does not state what the scaffold contains, how ports/device settings are used, or what the setup notes will cover.

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

Parameters2/5

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

Schema description coverage is only 20% (just 'name' and 'parent_path' are described), yet the description does not compensate for the other eight parameters. It hints at mode via 'OSC/MIDI/CV' and channel mapping via 'channel_count', but send_port, receive_port, midi_device, bipolar, active, and rack_host remain unexplained.

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

Purpose5/5

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

The description clearly states the action ('Create') and a specific resource ('VCV Rack OSC/MIDI/CV modulation bridge scaffold'), naming both the target platform and the protocol modalities. This distinguishes it from sibling bridge/creation tools by specifying VCV Rack and its channel-mapping deliverable.

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 the many sibling bridge creators (e.g., create_midi_map, qlab_osc_bridge, create_external_io). The description only states what it does, with no context, prerequisites, or exclusions.

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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