get_menstrual_data_for_date

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

No annotations are provided, so the description carries the responsibility for indicating side effects. The verb 'get' implies read-only behavior, but the description does not explicitly state that it has no side effects, nor does it mention any data-return limitations or error conditions. This is adequate but not thorough.

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 extremely concise and front-loaded. It states the purpose in a single sentence and then documents the only parameter. There is no unnecessary verbiage or redundant information.

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 tells what the tool does but not what the returned menstrual data will look like, what fields are included, or how it might compare to related menstrual endpoints. Since the output schema is not included in the visible definition, the lack of any expected-response detail leaves the agent somewhat under-informed.

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?

The schema only indicates that 'date' is a required string, but the description adds the exact expected format ('YYYY-MM-DD'), which is valuable. No additional context such as timezone or date-range constraints is provided, but for a single parameter this is reasonably well covered.

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 action ('Get') and the resource ('menstrual data') for a specific date. However, it does not explicitly distinguish itself from the sibling tool 'get_menstrual_calendar_data' beyond the date-specific wording, so it is not fully self-contained in differentiating alternatives.

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 guidance on when to use this tool versus alternatives such as 'get_menstrual_calendar_data' or other health-data getters. The description simply states what it does without explaining the appropriate context or selection criteria.

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