Samsung Health Daily Summary

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint. The description adds that it uses local export data (not live) and disclaims it is not medical advice, providing behavioral context beyond annotations.

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?

Two concise sentences with no superfluous words. Every sentence adds value: function and disclaimer. Front-loaded with the main purpose.

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?

The tool produces a daily wellness summary, but no output schema is provided and the description does not specify what metrics or format the summary includes. Given the complexity of a wellness summary, the description is incomplete for an agent to fully understand the output.

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 description does not elaborate on any of the three parameters. Schema provides descriptions for date and timezone, but response_format (enum without description) is not explained. With 67% schema coverage, description should add context like the difference between markdown and json output, but it doesn't.

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 it builds a daily wellness summary from local Samsung Health export data, distinguishing it from live Samsung Health and from weekly summaries. The verb 'Build' and resource 'daily wellness summary' are specific.

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 usage for daily summaries from local data but does not explicitly state when to use this tool versus alternatives like samsung_health_weekly_summary or list_records. No guidance on when not to use.

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