list_garmin_activities_by_date

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

No annotations provided. The description discloses that omitting end_date limits results to the start date only, which is useful. However, it does not mention pagination, rate limits, or other behavioral traits beyond parameter defaults.

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 compact, with the main purpose in the first line and parameter details in clear, bullet-like lines. No redundant or unnecessary text.

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 4 parameters (1 required), an output schema exists (so return values not needed), and no annotations, the description adequately covers parameter formats and defaults. It could mention pagination or maximum results but is mostly complete for a listing tool.

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 adds full meaning for all 4 parameters: start_date format, end_date optionality and default behavior, activity_type as optional key, sort_order with examples. This compensates completely for the schema gap.

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 specifies the verb 'list', the resource 'Garmin Connect activities', and the constraint 'for a date range'. This clearly differentiates it from siblings like 'list_garmin_activities' which lacks date filtering.

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 the tool is for listing activities by date range but does not explicitly state when to use it versus other list tools or provide exclusion criteria. 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.