get_athlete_stats

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states 'Get' implies a read operation but doesn't cover critical aspects like authentication requirements, rate limits, error handling, or response format. For a tool with no annotation coverage, this is a significant gap in transparency about how it behaves.

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 a single, efficient sentence that front-loads the core purpose. It avoids unnecessary words and gets straight to the point. However, it could be slightly more structured by explicitly separating the tool's scope (e.g., 'Retrieves statistical data for an athlete').

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 annotations, no output schema, and a single parameter with full schema coverage, the description is incomplete. It lacks information on authentication, rate limits, error cases, and the structure of returned statistics (e.g., what 'totals and recent activities' includes). For a tool in this context, more behavioral and output details are needed.

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?

Schema description coverage is 100%, with the single parameter 'athlete_id' documented in the schema. The description doesn't add any parameter-specific details beyond what the schema provides (e.g., it doesn't explain what 'athlete_id' refers to or valid ranges). Baseline 3 is appropriate when the schema does the heavy lifting.

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 verb 'Get' and resource 'athlete statistics', specifying it includes 'totals and recent activities'. This distinguishes it from sibling tools like 'get_athlete' (which likely returns profile info) or 'get_activities' (which lists activities). However, it doesn't explicitly differentiate from all siblings (e.g., 'get_athlete_zones' might overlap in athlete focus).

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 guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., authentication), compare to siblings like 'get_athlete' or 'get_activities', or specify use cases (e.g., for performance analysis vs. general info). This leaves the agent to infer usage from the name alone.

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