Diet by Sign

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and closed-world, so the safety profile is covered. The description adds genuinely useful operational context the annotations do not: the POST endpoint and the credit cost (10 credits, Tier 1). It still says nothing about what the response contains or what the element is derived from.

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

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

The bracketed metadata block is front-loaded and easy to scan, with zero filler text. The size is appropriate, though the core semantic sentence is too thin to earn much beyond efficiency.

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

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

This is a 13-parameter astrological computation with an output schema, yet the description explains neither the returned dietary output nor the role of the large optional parameter set (ayanamsa, house system, zodiac type, cosmogram). For a tool of this complexity, the definition is substantially under-specified.

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

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

Schema coverage is only 23% across 13 parameters, so the description needs to compensate and does not. The "[Required: date, time, latitude, longitude]" line merely repeats the schema's required list, and the eight optional parameters (city, name, cosmogram, zodiacType, houseSystem, ayanamsaId, etc.) get no explanation at all.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

"Element-based dietary focus" largely restates the title "Diet by Sign" and only hints at the mechanism (element). It never says what the tool actually produces – a dietary recommendation for a pet derived from its chart – nor how it differs from the many pet_* and wellness_diet siblings.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no when-to-use guidance, no exclusions, and no reference to alternatives such as astroway_wellness_diet or astroway_pet_health_tips. Only the group tag [Pet Astrology] implies a domain, which is not the same as guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.