get_daily_summaries

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds a useful constraint (range capped at up to a year), but says nothing about return shape, ordering, or how a missing end_date behaves.

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 short sentences, front-loaded with the core action and followed by the usage recommendation. Nothing is redundant or padded.

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?

For a simple two-parameter read tool with annotations covering safety, this is close to complete, but the optional end_date (default null) is undefined in both the schema and the description, and no date format is given. An agent must guess how to omit or format the range.

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 0%, so the description carries the burden; it does clarify that the two date params form a range and that the span is capped at a year. However, it never states the expected date format or what a null end_date defaults to, leaving half the semantics unresolved.

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 states a specific verb and resource ('Get daily wellness summaries') plus a scope ('for a date range, up to a year'), which lets an agent distinguish it from the singular get_daily_summary without opening a schema. It stops short of explicitly naming that sibling, so the differentiation is inferential rather than stated.

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?

'Best for trends across many days' is an explicit usage recommendation that tells the agent when this tool is the right pick (multi-day trend analysis, not single-day lookup). There is no explicit exclusion or named alternative, which keeps it below a 5.

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