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tschoonj

xraylib MCP Server

by tschoonj

ComptonProfile

Compute the Compton profile for any element using atomic number and electron momentum projection.

Instructions

Calculate the Compton profile for an element.

Args: Z: Atomic number (1-120) pz: Projection of the electron momentum in atomic units

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
ZYes
pzYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are provided, and the description does not disclose any behavioral traits such as whether the operation is read-only, side effects, or rate limits.

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 extremely concise: one sentence plus argument list. Every word is earned and front-loaded.

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?

The tool is simple with two parameters. An output schema exists, so return values are covered. However, a bit more context about the Compton profile concept or units of output could help.

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?

The description adds meaning to parameters: Z is atomic number (1-120), pz is projection of electron momentum in atomic units. This goes beyond the schema which has no descriptions.

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 states 'Calculate the Compton profile for an element' with a specific verb and resource. It is clear, but lacks explicit differentiation from sibling tools like ComptonProfile_Partial.

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 vs alternatives. No context about prerequisites or when not to use.

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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