get_profile

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

No annotations are provided, so the description carries the burden of behavioral disclosure. 'Get' clearly signals a read-only, non-mutating operation, and the listed content adds useful context. However, it does not mention authentication needs, availability constraints, or how unconfigured zones are represented.

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, well-structured sentence with an efficient colon-led list. It front-loads the verb and resource and every phrase adds meaningful detail without redundancy or filler.

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?

With no parameters and no output schema, the description does a solid job of enumerating the profile's contents: identity/unit preferences, personal settings, HR zones, and power zones. It is largely sufficient for a zero-parameter tool, though it leaves minor ambiguity about formatting and defaults for unconfigured zones.

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 zero parameters, so the baseline is 4 and the description does not need to parameter semantics. It adds value by explaining what the returned profile contains, which compensates for the absence of an output schema.

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 uses a specific verb ('Get') and a specific resource ('the athlete's profile') and enumerates the major content categories included. It is clear and distinct from activity-focused siblings, though it does not explicitly name a sibling to differentiate itself from.

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 when to use the tool by listing profile settings, HR zones, and power zones, which suggests this is for configuration/profile data rather than activity or daily metrics. It does not explicitly state when not to use it or name alternatives, so usage guidance is only implied.

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