Health Watch-Outs

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

Annotations already declare readOnlyHint=true, idempotentHint=true, etc. The description adds that it covers health vulnerabilities based on birth data, and it includes an example request. It does not explain internal behavior (e.g., how it computes vulnerabilities), but it does not contradict annotations. It adds some context but not rich behavioral detail.

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 description is very brief: two short sentences plus a group label and an example. It is front-loaded with purpose and disclaimer. The example adds length but is helpful. No superfluous text. Score 4 for being efficient while including essential cues.

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?

The description does not explain what the output looks like (no output schema). Given the complexity of the tool (7 parameters, many sibling tools), a brief statement of purpose and an example are insufficient. The tool appears to return text about health vulnerabilities, but the user agent has no clue about the format or content of the response.

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 100%, so all parameters are documented in the schema. The description does not elaborate on parameter meaning beyond the schema; it only provides an example request body. Baseline 3 is appropriate as the description adds no semantic value beyond the schema.

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?

The description states 'Sign-specific health vulnerabilities' and groups it under '[Group: Pet Astrology]', clearly indicating it returns health risks based on zodiac sign. The verb is implied (retrieve). It does not explicitly distinguish from the many sibling pet tools, but the unique focus on health is clear.

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?

The description includes 'NOT veterinary advice' as a usage disclaimer but provides no explicit guidance on when to use this tool versus the many other pet astrology tools (e.g., pet_birth_chart, pet_diet_by_sign). Usage is implied by the title and group, but no alternatives or exclusions are mentioned.

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