Calculate maintenance calories

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

With no annotations, the description carries the full transparency burden. It mentions only 'HTTP endpoint, sub-second,' which adds minor performance/network context, but it does not disclose whether the operation is read-only, has side effects, requires authentication, or how errors are handled. This is a significant gap for a calculation tool with no annotation support.

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 two sentences and front-loads the main purpose. The second sentence adds a useful performance/endpoint detail. The phrase 'Balance IT's' is slightly awkward and could be clearer, but overall the description is concise with minimal waste.

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?

For a 6-parameter calculation tool with no output schema, the description is adequate but incomplete. It states the output concept ('daily kcal estimate') but does not specify output format, limitations (e.g., the schema restricts species to canine and feline, yet the description says 'pet' generically), or any caveats. It could benefit from clarifying supported species and return type.

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 has 0% property descriptions, so the description adds high-level context by naming the key inputs (species, weight, age, reproductive status). However, it does not explain the units, the gender enum meanings, or how parameters relate to each other beyond what the schema already shows. It partially compensates for the low schema coverage but not fully.

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 that the tool produces a daily kcal estimate for a pet based on species, weight, age, and reproductive status. This specific verb+resource+scope distinguishes it from sibling tools focused on recipes and food searches.

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 implies usage when a calorie estimate is needed given the listed inputs, but it does not explicitly state when to prefer this over alternatives, nor does it mention exclusions or when not to use it. The context is clear but not prescriptive.

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