get_activity_splits

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

No annotations are provided, and the description does not disclose any behavioral traits such as destructiveness, authentication requirements, rate limits, or the nature of the response (e.g., list vs single object). The tool returns data but its read-only status is not confirmed.

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 short but includes a redundant 'Args' section that mirrors the parameter definition. Could be tightened to one sentence without the parameter repetition, but overall it remains concise.

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 an output schema exists, return value explanation is unnecessary, but the description lacks context about the structure of split data (e.g., arrays, fields). It does not help the agent understand what 'splits' include or how to interpret the results.

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%, and the description only adds 'Garmin activity ID' to the single parameter 'activity_id.' While this provides a slight context (source), it does not explain the format, range, or how to obtain the ID, leaving the parameter mostly self-documenting.

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 retrieves 'split/lap data for an activity,' which is a specific action on a resource. It distinguishes itself from sibling tools like 'get_activity' (general activity details) and 'get_activity_details' (possibly more comprehensive breakdown).

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?

No guidance on when to use this tool versus alternatives like 'get_activity_details' or 'get_activity_hrm_1pct.' It does not mention prerequisites (e.g., activity must exist) or scenarios where this tool is preferred.

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