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Withings Daily Wellness Summary

withings_daily_summary
Read-onlyIdempotent

Retrieve a daily summary of your Withings activity, sleep, and body/heart data. Read-only, non-medical, with configurable lookback and timezone.

Instructions

Build a practical daily summary from Withings activity, sleep and body/heart data when available. Read-only and non-medical.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
daysNoLookback window for recent training context.
timezoneNoIANA timezone used only for display, e.g. America/New_York.UTC
response_formatNomarkdown

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
kindYes
generated_atYes
Behavior3/5

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

Annotations already provide readOnlyHint, openWorldHint, idempotentHint, destructiveHint. The description adds 'Read-only and non-medical', which is consistent but adds minimal extra context. No contradiction.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two short sentences, front-loaded with the main action. Every word is meaningful with no fluff.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description gives a reasonable overview but lacks details on data availability handling, expected output structure (though output schema exists), and specific use cases. Adequate but could be improved.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description does not elaborate on any of the three parameters (days, timezone, response_format). With schema coverage at 67%, the description adds no additional meaning beyond what the schema already provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Build' and the resource 'daily summary', and specifies the data sources (activity, sleep, body/heart). It distinguishes from sibling tools like withings_list_activity and withings_weekly_summary by focusing on a consolidated summary.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description does not explicitly state when to use this tool versus alternatives. While it mentions 'when available', it lacks guidance on scenarios where raw data listings or weekly summaries might be more appropriate.

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

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