get_lactate_threshold

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

No annotations are provided, so the description bears the full burden of disclosing behavior. It gives no information about what the tool returns, whether it updates data, requires authentication, or has side effects. The agent cannot infer any behavioral traits beyond the vague name.

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 short (one word) but critically under-specified. Conciseness should not sacrifice necessary information. The single word does not explain the tool's function, parameters, or behavior, making it inadequate for an agent to select or invoke the tool correctly.

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 presence of an output schema, 2 parameters, and many sibling tools, the description is completely insufficient. It does not describe what the output contains, how date filtering works, or how this tool differs from similar health metrics tools. The agent has no basis for correct usage.

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 input schema has 2 optional parameters (start_date, end_date) with 0% schema description coverage. The description does not mention or explain these parameters. While the parameter names are somewhat self-explanatory, the description adds no value about expected date formats, required ranges, or how they affect the query.

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 is the Chinese translation of the tool name ('乳酸阈值' = 'Lactate threshold'), which is a tautology. It does not state what the tool does, such as 'retrieve the user's lactate threshold value' or clarify the resource being accessed. With siblings like get_hill_score, hr_intraday, vo2max, etc., the description fails to distinguish this tool's purpose.

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 guidance is provided on when to use this tool versus alternatives. Many sibling tools also return health metrics (e.g., vo2max, get_endurance_score), but the description offers no context for when lactate threshold is appropriate or how it differs from similar metrics.

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