get_daily_report

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

With no annotations, the description itself must convey behavior. It clearly indicates a read-only aggregation/reporting action and spells out the report contents, including the notable-events component. It could add details about output format or data availability, but the core behavioral profile is transparent.

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?

Every sentence earns its place: one sentence specifies the tool's output components and a second gives a clear use case. The core action and contents are front-loaded with no filler.

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 one-optional-parameter tool with no output schema, the description provides enough to decide and invoke correctly: it names the date scope (daily) and lists the expected contents. It stops short of stating return formatting or clarifying edge cases like empty days, but these are minor given the tool's simplicity.

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 100%, so the date parameter is already fully documented. The description only reinforces 'daily' without adding format, default behavior, or edge-case guidance beyond the schema.

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 opens with a specific verb 'Generate' and a clear resource 'daily report', then enumerates its contents (glucose min/max/avg/TIR, treatments, time-in-ranges, notable events). This distinguishes it from siblings like get_statistics or get_treatments by positioning it as the consolidated daily view.

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 phrase 'Perfect for daily review' gives a clear use context. The description conveys this is the aggregate daily overview, which implicitly differentiates it from narrower siblings, but it does not explicitly name alternatives or state when not to use it.

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