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lucasgerads

LeCroy Oscilloscope MCP

by lucasgerads

scope_set_math_zoom

Set the horizontal zoom of a math trace to examine a specific frequency or time range without altering the underlying computation. Specify function number, center value, and scale per division.

Instructions

Set the horizontal display zoom for a math trace.

Useful for zooming into a specific frequency range on an FFT trace without changing the FFT computation itself.

Units depend on the math function type:

  • FFT traces: Hz (e.g. center=1250, per_div=250 shows 0–2500 Hz on 10 divs)

  • Time-domain math traces: seconds

Args: func: Math function number 1–4 center: Center value (Hz for FFT, seconds for time-domain math) per_div: Scale per division

Transport: VBS (app.Math.Fn.Zoom.HorCenter, app.Math.Fn.Zoom.HorScale)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
funcYes
centerYes
per_divYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided; description does not disclose whether operation is destructive, requires specific instrument state, or has side effects. Transport info is noted but behavioral traits are lacking.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Brief and well-structured: purpose first, then unit explanation, then param list, and transport. No redundant sentences.

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?

Adequate coverage given output schema exists but not detailed. Description explains units and parameters, but lacks mention of output or non-destructive nature. Could be more complete for a zoom operation.

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?

Schema coverage is 0%, but description adds vital meaning: func range (1–4), center units depend on math type (Hz/seconds), and per_div scaling. Compensates well for absent schema descriptions.

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?

Description clearly states the tool sets horizontal display zoom for math traces, specifies FFT and time-domain cases, and distinguishes from sibling tools like scope_math_zoom_info.

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?

Provides context for when to use (zooming into FFT frequency range without recomputing), but no explicit guidance on when not to use or alternatives.

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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