water_intake_calc

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

The description does not detail return format, formula used, or potential error behavior. Since annotations are absent, the description carries full burden but provides minimal behavioral insight beyond the calculation intent.

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: one sentence for purpose followed by a clean parameter list. No extraneous words, well organized, and easy to scan.

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 the tool is a simple calculator with an output schema (not shown) likely describing return values, the description sufficiently covers inputs. It could mention output unit (e.g., liters) but is adequate for its complexity.

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 description coverage, the description adds meaningful explanations for each parameter: weight in kg, activity minutes with default, and temperature with allowed values. This compensates for the lack of schema descriptions.

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 'Calculate recommended daily water intake' with a specific verb and resource. It distinguishes itself from sibling tools like bmr_calc or calorie_burn which handle different health metrics.

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?

No explicit guidance on when to use or when not to use this tool versus alternatives. The context of parameters (weight, activity, climate) implies usage scenarios, but there is no direct statement of suitability or exclusion.

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