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astroway

astroway-mcp

Official

Horary Chart

horary
Read-onlyIdempotent

Calculate a horary chart for a question moment and receive radicality assessment with significator analysis.

Instructions

Calculate a horary chart for a question moment and return the chart data with radicality assessment and significator analysis.

[Group: Horary] [Cost: 20 credits (Tier 2)]

Example request body: {"date":"2024-06-15","time":"14:30:00","timezoneOffset":3,"latitude":50.45,"longitude":30.52}

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dateYes
timeYes
timezoneOffsetNo
latitudeNo
longitudeNo
houseSystemNoP
nameNo
cityNo
zodiacTypeNo
ayanamsaIdNo
cosmogramNo
Behavior3/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, etc. The description aligns with these but adds no new behavioral context beyond mentioning the output includes radicality assessment and significator analysis.

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 concise with one sentence plus group and cost lines, and an example. It is front-loaded and avoids fluff, though could include a brief parameter explanation without adding much length.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given 11 parameters, no output schema, and many sibling tools, the description is incomplete. It lacks details on optional parameters and return structure. The tool's complexity demands more than a single sentence and example.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%. The description provides only an example request body with sample values but does not explain the meaning or constraints of any parameters beyond what the schema provides. For 11 parameters, more explanation is needed.

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 clearly states the tool calculates a horary chart and returns chart data with radicality assessment and significator analysis. However, it does not differentiate from sibling horary tools like horary_diagnostics or horary_moon_aspects.

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?

The description provides no guidance on when to use this tool versus alternative horary tools. No when-to-use or when-not-to-use information is given.

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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