time_age_calculator

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

No annotations are provided, and the description fails to disclose behavioral traits such as read-only nature, input validation, or error handling. The reference to describe_tool for full guidance indicates incompleteness.

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 relatively short but contains redundancy ('Menu ID: age_calculator. Age Calculator.') and an unnecessary reference to describe_tool. It is front-loaded but could be more efficient.

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?

Given no output schema, the description should indicate return format. It lists what can be computed but not how results are returned. The tool has 4 required params but 'operation' is unexplained, making it insufficient for correct invocation without external guidance.

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?

With 0% schema coverage, the description should explain parameters. It mentions 'birth date' and lists years, months, days but does not describe the 'operation' parameter or clarify that birthYear, birthMonth, birthDay are required. The description adds minimal meaning 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 clearly states the tool computes exact age from a birth date in various units and finds additional information like next birthday and zodiac. It distinguishes itself from siblings like time_date_difference by focusing on age from birth date. However, the inclusion of 'Menu ID' is extraneous.

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 provides no explicit guidance on when to use this tool versus alternatives. It implies use for age calculation but does not mention when not to use or compare with related tools like time_date_difference.

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