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MikeLi-28

substance-designer-mcp

by MikeLi-28

sd_disconnect_nodes

Disconnects an explicit property connection between two nodes in a Substance 3D Designer graph by providing source and target node and property names.

Instructions

Disconnect one explicit existing property connection.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
graphYes
source_nodeYes
target_nodeYes
source_propertyYes
target_propertyYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

Annotations indicate readOnlyHint=false and destructiveHint=false, but the description adds no extra behavioral details (e.g., whether changes are immediate, require confirmation, or affect other connections).

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

Conciseness3/5

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

Single sentence with no wasted words, but the extreme brevity sacrifices clarity. It is concise but not sufficiently informative.

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

Completeness1/5

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

Given the tool has 5 required parameters, related siblings, and exists in a complex graph manipulation context, the description fails to provide essential context for an agent to invoke it correctly.

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

Parameters1/5

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

With 0% schema description coverage, the description must explain parameters. It provides no information about what source_node, target_node, source_property, target_property mean or how they relate to a 'property connection'.

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 states 'Disconnect one explicit existing property connection', clearly indicating the action (disconnect) and resource (property connection). It distinguishes from sibling sd_connect_nodes, but lacks specificity about the two-node structure.

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 on when to use this tool versus alternatives like sd_connect_nodes, sd_delete_nodes, or others. No context on prerequisites or when not to use it.

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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