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Panchang — Nakshatra of Day

vedic_panchang_nakshatra_of_day
Read-onlyIdempotent

Calculate the Moon's current Nakshatra (lunar mansion) along with its Pada and completion percentage for any given date, time, and location.

Instructions

Moon's sidereal Nakshatra (lunar mansion) at the given moment, with Pada (1-4) and percent-complete.

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

Example request body: {"date":"1990-05-15","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 indicate readOnlyHint=true, destructiveHint=false, idempotentHint=true, openWorldHint=false. The description adds minimal behavioral context (single moment calculation, returns nakshatra name, pada, percent) but does not disclose any additional traits beyond annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

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

The description is short and includes a group/cost line and an example. However, for 11 parameters, the example is somewhat bulky and the description could be more structured without losing conciseness.

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?

With 11 parameters, 0% schema coverage, no output schema, and a complex domain, the description is inadequate. It omits explanations for most parameters and does not clarify return values or usage context.

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%, so the description must compensate. It provides an example with 5 of 11 parameters but explains none. Most parameters (e.g., houseSystem, zodiacType, ayanamsaId) are unexplained.

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 it calculates the Moon's Nakshatra at a given moment, including pada and percent-complete. It is specific and actionable, but does not explicitly differentiate from sibling tools like 'nakshatras' or other panchang tools.

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 is provided on when to use this tool versus alternatives. Among many sibling panchang and nakshatra tools, the description lacks any indication of preferred use cases or exclusions.

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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