download_player_games_pgn

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It indicates a data retrieval action and names PGN as the format, but does not state whether the tool returns raw PGN content, file URLs, or an archive, nor does it mention authentication or rate-limit considerations.

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 14-word sentence that front-loads the core action ('Download PGN files') and contains no fluff. It is slightly too spare, omitting the player qualifier, but it remains well-structured and easy to parse.

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?

For a tool with no annotations, no output schema, and 0% parameter descriptions, this one-liner is too skeletal. It lacks parameter explanations, sibling differentiation, and return-behavior details, which an agent would need to invoke and process the result confidently.

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 description needs to compensate by explaining the required parameters. It only gestures at 'a specific month' and does not define username, valid year/month ranges, or how the parameters map to the filtering behavior.

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 uses a specific verb ('Download'), a concrete resource ('PGN files'), and a clear scope ('all games in a specific month'), which distinguishes it from JSON-oriented siblings like get_player_games_by_month. However, it never explicitly says the games belong to the given player, leaving 'all games' slightly ambiguous without relying on the tool name.

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 gives no guidance on when to use this tool versus closely related siblings such as get_player_games_by_month or get_player_game_archives. An agent is left to infer selection criteria from the tool name and schema alone.

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