get_titled_players

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

With no annotations, the description carries the full burden of behavioral disclosure. It only states that the tool retrieves a list but provides no details on behavior such as read-only nature, response structure, potential errors, or rate limits. The description is insufficient for an agent to understand the tool's side effects.

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?

While the description is short (one sentence), it omits critical information that would justify its brevity. Conciseness should not come at the cost of completeness; here, the agent is left guessing about parameter values and usage context.

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 there is an output schema, the description could omit return details, but it still fails to explain the meaning of 'titled players', valid title values, or the default behavior of the tool. The minimum viable information required for correct invocation is missing.

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?

The input schema has schema description coverage of 0%, and the tool description does not explain the 'title' parameter's valid values (e.g., 'GM', 'IM', 'FM', etc.) or its format. The agent has no information to correctly construct the parameter value beyond the schema's type constraint.

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 verb 'Get' and resource 'list of titled players from Chess.com', distinguishing it from sibling tools that focus on individual player data or game downloads. However, it does not explain what 'titled players' means, which could be ambiguous for the agent.

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 like download_player_games_pgn or get_player_profile. There is no mention of prerequisites, context, or conditions that would inform appropriate invocation.

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