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mcp-rs232

mcp-rs232

by daedalus
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

get_port_config

Retrieve current configuration of an open serial port, such as baud rate and parity, by specifying the port name.

Instructions

Get the current configuration of an open serial port.

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": {
      "port": "<port>"
    },
    "name": "get_port_config"
  }
}

Input Schema

NameRequiredDescriptionDefault
portYesThe name of the port to query.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.3/5.0
Behavior2/5

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

No annotations are provided, so the description must disclose all behavioral traits. It only states 'Get' (implying read-only) but does not mention prerequisites (e.g., port must be open), error conditions, or that configuration is static after opening.

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?

Single sentence, front-loaded with verb and resource, no unnecessary words. Efficiently communicates the core function.

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?

Tool complexity is low (one parameter, output schema exists). However, the description omits the implicit dependency on open_port (the port must already be open), which a new agent might not infer from sibling names alone.

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% (port parameter described as 'The name of the port to query.'). The description adds no additional meaning beyond what the schema already provides, scoring baseline 3.

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 uses a specific verb ('Get') and resource ('configuration of an open serial port'), clearly distinguishing it from siblings like read_port (reads data) or list_ports_tool (lists available ports).

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. For example, it doesn't mention that the port must be open first (using open_port) or that this tool should be used to check settings before reading/writing.

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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