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ChesterRa

命盘 Mingpan

by ChesterRa

meihua_basic

Generate Plum Blossom divination hexagrams using lunar date/time or two numbers, providing hexagram details and body-use analysis.

Instructions

梅花易數排盤(基礎排盤)。

支持兩種起卦方式:

  1. 時間起卦(method='time'):根據農曆年月日時起卦

  2. 數字起卦(method='number'):根據兩個數字起卦

返回完整的梅花盤面:

  • 本卦/變卦/互卦

  • 上卦/下卦(含卦象、五行)

  • 動爻位置

  • 體用分析(體卦、用卦、五行生剋關係)

  • 起卦數據詳情

時間起卦算法(農曆):

  • 上卦 = (年干支序數 + 月 + 日) % 8

  • 下卦 = (年干支序數 + 月 + 日 + 時辰序數) % 8

  • 動爻 = (年干支序數 + 月 + 日 + 時辰序數) % 6

輸出為 Markdown 格式,便於 AI 分析解讀。

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
methodYes起卦方式:time=時間起卦,number=數字起卦
yearNo起卦年份(公曆,time 模式必填)
monthNo起卦月份(1-12,time 模式必填)
dayNo起卦日期(1-31,time 模式必填)
hourNo起卦時辰(0-23,time 模式必填)
isLunarNoWhether the input date is in lunar calendar (農曆). If true, will be converted to solar calendar internally.
upperNumberNo上卦數(number 模式必填)
lowerNumberNo下卦數(number 模式必填)
yaoNumberNo動爻數(可選,默認用上下卦數之和)
Behavior4/5

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

No annotations are provided, so the description carries full burden. It discloses the algorithm for time-based gua, the return format (Markdown), and components. However, it does not mention safety, side effects, or error handling, but the tool is inherently read-only and non-destructive.

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?

The description is well-structured with a clear introduction, method list, output details, and algorithm. It is efficient with no superfluous content, though a slightly more concise algorithm description could improve readability.

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?

Given 9 parameters and no output schema, the description adequately covers input methods, required parameters, and output components. However, it omits mention of the isLunar parameter and the number method algorithm is vague; still, it is reasonably complete for the domain.

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 description coverage is 100% with all parameters described individually. The tool description adds context about the two methods and algorithm but does not significantly enhance per-parameter meaning beyond the schema. Baseline 3 is appropriate.

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 clearly identifies the tool as generating Meihua Yishu basic chart, specifying two methods (time and number) and listing output components. This differentiates it from other Chinese divination siblings (e.g., bazi, liuyao) as a distinct system.

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 explains the two available methods and what the tool returns, but does not explicitly state when to use this tool versus alternatives. It assumes domain knowledge that Meihua Yishu is for certain scenarios, but lacks direct guidance on exclusion or comparison with sibling tools.

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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