siglent-sds-mcp

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analyze_rs485_pair_csv_file

Computes the differential voltage (Vdiff = VA - VB) from two CSV waveforms representing RS485 A and B signals, enabling analysis of bus signal quality.

Instructions

Analyze two CSV waveforms as RS485 A/B and compute Vdiff = VA - VB.

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": {
      "csv_a_path": "<csv_a_path>",
      "csv_b_path": "<csv_b_path>"
    },
    "name": "analyze_rs485_pair_csv_file"
  }
}

Input Schema

Name	Required	Description	Default
`baudrate`	No
`csv_a_path`	Yes
`csv_b_path`	Yes
`threshold_v`	No

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Aug 6, 2026

TDQS

C2.9/5.0

Behavior2/5

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

With no annotations provided, the description carries the full burden of disclosing behavioral traits. It states the core computation (Vdiff = VA - VB) but omits input CSV format requirements, validation behavior, potential errors, or whether any RS485 frame decoding occurs. This leaves significant ambiguity about the tool's behavior.

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?

The description is a single efficient sentence that front-loads the core action and avoids verbosity. However, it is under-specified, sacrificing necessary detail for brevity. It is concise, but not optimally informative.

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

Completeness2/5

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

Despite having an output schema, the description is incomplete for a tool with four parameters and no annotations. It lacks context about file format, baudrate relevance, threshold behavior, and expected output structure, making it insufficient for an agent to invoke the tool correctly without additional context.

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?

Schema description coverage is 0%, and the description does not compensate by explaining the parameters. While csv_a_path and csv_b_path are somewhat self-explanatory given the A/B context, the purpose of baudrate and threshold_v is entirely unclear. The description adds no meaningful parameter semantics beyond what the parameter names imply.

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 explicitly states the tool analyzes two CSV waveforms as RS485 A/B and computes Vdiff = VA - VB, providing a specific verb, resource, and output. This clearly differentiates it from sibling tools like analyze_uart_csv_file, which presumably handles single-ended UART CSV files.

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 implies usage when the user has two CSV waveforms representing RS485 A and B signals, but it does not explicitly discuss when to use this tool versus alternatives like analyze_uart_csv_file. No exclusions or alternative conditions are provided, so the guidance remains at the level of implied usage.

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