ltspice-mcp

component_info

Read-onlyIdempotent

Retrieve a component's pin positions, bounding box, value, and attributes from an .asc schematic by providing the file path and reference.

Instructions

Get a placed component's pin positions, bounding box, value, and attributes from an .asc schematic.

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": {
      "path": "<path>",
      "reference": "<reference>"
    },
    "name": "component_info"
  }
}

Input Schema

Name	Required	Description
`path`	Yes	Path to .asc schematic
`format`	No	Response format: 'json' for structured data, 'text' for human-readable
`reference`	Yes	Component reference (e.g., 'M1', 'R1')

Output Schema

Name	Required	Description	Default
`pins`	No
`value`	No
`symbol`	No
`position`	No
`rotation`	No
`reference`	No
`attributes`	No
`bounding_box`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Aug 21, 2026

TDQS

A3.8/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, and idempotentHint=true, so safety is well covered. The description adds that it reads from an .asc file and returns specific fields, but it does not disclose error handling or other behavioral details beyond what annotations imply. No contradiction.

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, focused sentence with the verb 'Get' front-loaded. All words are meaningful and it avoids redundancy or unnecessary detail.

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

Completeness4/5

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

Given the high schema coverage and presence of an output schema, the description is sufficient for this read-only tool. It lists the key data returned and the input context, though it could optionally mention behavior when components are missing, but this is not critical.

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 coverage is 100%, so each parameter (path, reference, format) is already described. The description does not add additional meaning or constraints to the parameters beyond what the schema provides, so baseline 3 applies.

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 specifies the action (get), the resource (placed component), and the data retrieved (pin positions, bounding box, value, attributes) from an .asc schematic. It is distinct from siblings like symbol_info or list_components, which focus on different aspects.

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 gives context (placed component, .asc schematic) that implies when to use it, but it does not explicitly mention alternatives or when not to use it. No user guidance is provided regarding comparison with sibling tools.

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