get_activity_exercise_sets

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

No annotations are provided, so the description must carry the full burden of behavioral disclosure. The description only states what the tool retrieves but does not mention any behavioral traits such as whether it is read-only, whether it requires specific authentication, what happens if the activity_id does not exist, or aspects like rate limiting or pagination. This is a significant gap for a tool that likely performs a data retrieval operation.

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 a single, short sentence, which is concise. However, it is not structured with front-loaded important information; it just states the function. It could be slightly improved by adding a brief note about the required parameter. It is not verbose, but also not optimally informative.

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 that the tool has an output schema (context signals) but no documentation on its return value or behavior, the description should provide at least a hint about the output structure. The description does not explain the return value, nor does it clarify the scope of 'exercise sets' (e.g., whether it includes weight, reps, etc.). For a tool with one required parameter and no sibling differentiation, the description is incomplete.

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 parameter 'activity_id' (type integer) has no description in the schema. The tool description adds no meaning about what this parameter represents (e.g., the specific activity ID format or constraints). The description does not compensate for the missing schema descriptions, leaving the agent without clarity on how to use the parameter.

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 '力量训练活动的动作组' roughly translates to 'exercise sets of strength training activities', which clarifies that the tool retrieves sets (groups of reps) for a strength training activity. It provides a specific verb ('get') and resource ('exercise sets'), but fails to distinguish from siblings like 'get_activity_splits' or 'get_activity_detail' which might also return structured activity data. The description is brief and offers no differentiation.

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 does not mention when to use this tool versus alternatives. For instance, there is no guidance on whether to use this vs. 'get_activity_splits' for strength training activities. The context signals show many sibling tools, yet no exclusions or context are provided. The agent is left to infer usage from the name alone.

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