get_athlete_profile

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

No annotations are provided, so the description carries the behavioral disclosure burden. It does disclose the contents of the response and a practical use case, which is helpful. However, it does not explicitly state read-only behavior, timezone format, possible null values, or any error cases—though these are minor for a zero-parameter profile lookup.

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 concise: two sentences, no filler. The primary content is front-loaded immediately, and the usage guidance is a natural second sentence. Every word contributes to helping an agent decide whether and how to call the tool.

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 simple zero-parameter lookup with no output schema, the description adequately lists the returned fields and gives a usage trigger. It does not specify exact value formats or edge cases, but nothing essential is missing for selecting and invoking the tool correctly.

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 tool has no parameters, so the schema imposes no semantic burden. Baseline for zero parameters is 4; the description does not need to explain parameters and does not. No additional parameter context is necessary.

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 identifies the resource as the athlete's profile and enumerates the fields it contains: name, location, timezone, and sex. While it lacks an explicit verb, the tool name and structure make the action obvious. It distinguishes itself from the athlete-focused siblings by scope, though it does not name any 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?

The description provides explicit guidance on when to read this tool first: when interpreting local times or addressing the athlete by name. This gives the agent a clear context for invocation. It does not mention when not to use it or point to a specific sibling alternative, but the instruction is still actionable.

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