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MCP_CAD

MCP_CAD

by danielproxd2
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

get_active_assembly_info

Retrieve metadata of the active SolidWorks assembly, including name, configurations, top-level components, and mates. Use this to inform subsequent operations.

Instructions

Return metadata about the currently active SolidWorks assembly.

Includes assembly name, modified flag, active configuration, all configurations, components (top-level only — no sub-assembly recursion), and existing mates. Call this before any mate / suppression / configuration operation so the LLM knows what entities exist.

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": "get_active_assembly_info"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.0.1

TDQS

A4.7/5.0
Behavior4/5

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

Describes return content in detail. No side effects noted; 'get' implies read-only. Could mention error handling for no open assembly, but sufficient for agent.

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?

Three concise sentences with purpose first, then content, then usage guidance. No waste, well-structured.

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

Completeness5/5

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

Provides full return details without output schema, plus usage context. Complete for a metadata retrieval tool.

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

Parameters4/5

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

No parameters exist, schema coverage 100%. Baseline 4 appropriate as description adds no parameter info, but none needed.

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?

Clearly states it returns metadata about the active assembly, listing specific content (name, modified flag, configs, components, mates). Distinguishes from sibling manipulation tools.

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

Usage Guidelines5/5

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

Explicitly instructs 'Call this before any mate / suppression / configuration operation', providing clear when-to-use context.

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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