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LTspice MCP

LTspice MCP

by kh6570
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

Close Remote Session

close_remote_session

Drop a remote LTspice session from memory while leaving all associated files on disk unchanged.

Instructions

Drop a session from memory. Files on disk are left in place.

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": {
      "session_id": "<session_id>"
    },
    "name": "close_remote_session"
  }
}

Input Schema

NameRequiredDescriptionDefault
session_idYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.0.1

TDQS

B3.1/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=false, and openWorldHint=false. The description adds useful context beyond those hints by clarifying that the session is dropped from memory while files on disk remain, which is consistent with destructiveHint=false. It still omits whether closing is allowed during an active run, whether it cancels work, and what authentication or state conditions apply.

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?

Two short sentences, front-loaded with the action and then the disk-preservation effect. Every sentence earns its place and there is no filler.

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

Completeness3/5

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

For a simple one-parameter tool with no output schema and four annotations, this is close to adequate. However, it does not explain session_id, nor does it distinguish this from close_live_gui_session or cancel_run, so an agent lacks routing information in a large sibling set.

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 0%, so the description carries the burden of explaining the required session_id parameter. It does not mention session_id at all, leaving its format or expected source undocumented, though the parameter name itself is fairly self-explanatory.

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 gives a clear verb ('Drop') and resource ('a session from memory'), and it adds the side effect that files on disk are left in place. It does not, however, distinguish this tool from siblings like close_live_gui_session or cancel_run, so an agent cannot tell from the description alone which close/cancel tool is appropriate.

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?

There is no guidance on when to use this tool, no prerequisites, and no named alternatives. The description states a behavioral fact about files but does not help an agent decide between this and other session-ending tools.

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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