Withings Workouts

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is clear. The description adds the behavioral requirement 'Requires user.activity scope', which is useful beyond the annotations, but it omits details about pagination behavior or output format that could affect usage.

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 concise with two sentences, no wasted words, and the core purpose is front-loaded. Every character adds value.

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?

Despite good schema and annotations, the description is too minimal for a tool with 8 parameters covering pagination, privacy modes, and output format. It does not explain the pagination logic (all_pages, max_pages) or the meaning of privacy modes, leaving the agent without critical behavioral context.

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 coverage is high (88%), so the description does not need to add much parameter-level detail. The description itself does not explain any parameters, but the schema already covers most. The baseline of 3 is appropriate given the coverage.

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 'List Withings workouts' with a specific verb and resource, and mentions the required scope. However, it does not differentiate from the sibling tool 'withings_list_activity', which may list similar data without specifying how workouts differ.

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 only notes the required scope but provides no guidance on when to use this tool versus alternatives like 'withings_list_activity' or when not to use it. There are no exclusions or context that would help an agent choose correctly among siblings.

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