horizon_torn_getUserPersonalStats

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

No annotations are provided, so the description bears full responsibility. It does not disclose authentication requirements, rate limits, or what constitutes 'personal stats.' The schema indicates a required 'id' field, but the description adds no behavioral context beyond the minimal verbiage.

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 (one sentence), but it lacks structure and additional context. It is not overly verbose, but the brevity sacrifices necessary detail. Every word earns its place, but more information could be added without losing conciseness.

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?

With no output schema and six parameters, the description is insufficient. It does not explain the meaning of 'personal stats,' how to use optional parameters like 'stat' or 'timestamp,' or what the response format is. The tool's complexity demands a richer description.

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 83%, with 5 of 6 parameters described in the schema. The description adds no additional meaning beyond the schema's parameter descriptions. Given the high coverage, a baseline of 3 is appropriate; the description does not enhance parameter understanding.

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 action (Get) and the resource (a player's personal stats), implying it returns stats for a specific player identified by user ID. However, it does not explicitly differentiate from sibling tools like getMyPersonalStats, which might return the current user's stats, but the phrase 'a player's' suggests it can fetch stats for any player.

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 is provided on when to use this tool versus alternatives such as getMyPersonalStats (for current user) or other user stats tools. The description does not mention prerequisites, context, or scenarios for use.

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