Withings Wellness Context

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

The annotations already declare readOnlyHint, openWorldHint, idempotentHint as true, and destructiveHint as false, covering the safety profile. The description adds the context of normalization but does not disclose any additional behavioral traits beyond what the annotations provide. No contradictions.

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 sentence of 14 words, front-loaded with the key verb 'Normalize'. Every word is meaningful, with no filler or redundant information. It achieves maximum conciseness.

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 complexity (normalization, 6 parameters, output schema present), the description is brief. It does not explain what the shared wellness_context shape contains, but an output schema exists to document returns. The tool's role among many siblings is somewhat clear but could be more complete regarding when to choose this normalization tool over raw data retrieval.

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 only 33% (2 of 6 parameters have descriptions). The description does not provide any parameter-level information; it does not mention or explain parameters like notes, soreness, injury_flags, or response_format. The value added over the schema is minimal, and the low coverage demands more compensation.

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 'Normalize' and identifies the resource 'Withings sleep and activity load' and the target 'shared wellness_context shape'. It clearly distinguishes this tool from sibling tools that retrieve raw data (e.g., withings_list_sleep, withings_list_activity) or summaries (e.g., withings_daily_summary).

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 hints at the use case ('for recommendation engines') but does not provide explicit guidance on when to use this tool versus alternatives, nor does it state when not to use it. Sibling tools like withings_weekly_summary or withings_list_sleep are not mentioned for differentiation.

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