get_gear_activities

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

With no annotations, the description carries the transparency burden. It clearly indicates a read operation ('Get activities') and adds a helpful note on how to obtain the gear UUID. However, it does not disclose pagination behavior beyond the limit parameter in the schema, nor does it mention error states like invalid UUID.

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 extremely concise with two sentences: one stating the purpose and a separate note for the prerequisite. Every word is necessary and there is no redundancy or extraneous information.

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 lacks an output schema, so the description should ideally clarify the return format (e.g., list of activity summaries). It only states 'Get activities' without specifying what fields or structure are returned. For a retrieval tool, this leaves ambiguity about the response.

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% for both parameters (gearUUID and limit). The description does not add new information beyond what the schema provides, maintaining the baseline score of 3. No clarification on parameter interactions or formatting is added.

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 the tool retrieves activities for a specific gear. The verb 'Get' and the resource 'activities where a specific piece of gear was used' are specific and help distinguish it from sibling tools like get_all_gear (which returns gear list) and link_gear_to_activity (which links gear).

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 mentions a prerequisite (gear UUID from Garmin Connect web) but does not explicitly state when to use this tool versus alternatives like get_gear_stats or list_recent_activities. No guidance on when not to use it is provided.

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