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astroway-mcp

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12 Palaces

ziwei_twelve_palaces
Read-onlyIdempotent

Provides the 12 palaces of Zi Wei Dou Shu – their names (English/Pinyin/Chinese), themes, and rules – using a birth date.

Instructions

All 12 palaces with English/pinyin/Chinese names + theme + rules.

[Group: Zi Wei Dou Shu (Purple Star) — MVP]

Example request body: {"date":"1990-06-15"}

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dateYesDate YYYY-MM-DD
latitudeNoLatitude (some date-only endpoints accept location)
longitudeNoLongitude
timezoneOffsetNoUTC offset in hours
Behavior4/5

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

Description adds behavioral context beyond annotations: returns names (English/pinyin/Chinese), themes, and rules. Annotations already indicate read-only, non-destructive, idempotent behavior. No contradictions.

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?

Description is short (two sentences plus group label and example). It is front-loaded and efficient, though it could be slightly more structured.

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?

No output schema exists, but description covers what is returned (names, themes, rules). Given the tool is a simple listing and annotations cover safety, it is fairly complete. Could clarify that response is a list of all 12 palaces.

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 coverage is 100%, so parameters are fully documented. The description provides an example request body but adds no extra semantic meaning for parameters like latitude, longitude, or timezoneOffset.

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 states it provides all 12 palaces with names, themes, and rules. This is specific and distinguishes it from siblings that focus on individual palaces (e.g., ziwei_palace_career).

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 versus the many related siblings (e.g., ziwei_full_chart, ziwei_main_stars). No exclusions or alternatives are mentioned.

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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