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minimaltek

Cardinal MCP Server

by minimaltek

connect_modules

Connect two modules in a VCV patch by specifying source and destination module IDs and port indices.

Instructions

Connect two modules with a cable

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
colorNoCable color (hex, e.g., '#ff5252')
filepathYesPath to the .vcv patch file
to_inputYesInput port index
from_outputYesOutput port index
to_module_idYesDestination module ID
from_module_idYesSource module ID
Behavior2/5

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It lacks information on side effects (e.g., modifying the patch file), whether connections are validated, or if the tool is destructive. Minimal transparency beyond the action.

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

Conciseness4/5

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

The description is a single sentence that is concise and front-loaded. It efficiently states the purpose, though it could benefit from slightly more content without becoming verbose.

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 6 parameters, no output schema, and no annotations, the description is incomplete. It does not explain the return value or side effects (e.g., modifying a file). More context is needed for a tool that likely mutates the patch.

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?

Schema description coverage is 100%, so the input schema already documents all parameters. The description adds no additional meaning beyond what is in the schema. Baseline score of 3 is appropriate.

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 'Connect two modules with a cable' clearly states the verb (connect) and the resource (two modules with a cable). It distinguishes from sibling tools like add_module or modify_parameter, which have different purposes.

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

Usage Guidelines3/5

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

The description does not provide explicit guidelines on when to use this tool versus alternatives. Usage is implied (when you need to connect modules), but no context on prerequisites or excluded cases.

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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