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Lumosylva

lottery-mcp-server

by Lumosylva

calculate_ac_value

Calculates the AC value (arithmetic complexity) of recent double-color ball lottery draws. The AC value measures number dispersion and structural complexity, with a golden range of 7-9.

Instructions

计算最近N期双色球开奖号码的AC值(算术复杂性),默认N=10。AC值反映号码的离散程度和结构复杂性,黄金区间为7-9

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
countNo期数,默认为10
Behavior4/5

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

No annotations provided; description explains the meaning of AC value and its golden interval, but does not detail return format or edge cases. The description effectively conveys 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.

Conciseness5/5

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

Description is a single concise sentence that front-loads the core purpose and default, with an explanatory follow-up. No wasted words.

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?

For a simple calculation tool with one optional parameter and no output schema, the description covers purpose, default, and meaning. It lacks return format details but is sufficient for the tool's simplicity.

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 covers 100% of parameters with descriptions, so baseline is 3. The tool description adds context about AC value but does not provide additional parameter-specific information beyond the schema.

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 it calculates AC value for recent N periods, with a specific verb and resource, and distinguishes from siblings like calculate_sum_value.

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?

Description implies usage through its name and purpose, but lacks explicit when-to-use or when-not-to-use guidance compared to 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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