get_transfer_rumours_by_player_id

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

No annotations are provided, so the description carries the full burden. It fails to disclose behavioral traits such as pagination (though parameters exist), default ordering, data freshness, or rate limits. The tool's behavior beyond 'get rumours' is opaque.

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 concise sentence front-loaded with the essential action and resource. Every word adds value, no superfluous content.

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 the tool has 7 parameters (including pagination, includes, selects, filters) and no output schema, the description is too minimal. It does not explain the return format, pagination behavior, or how the complex parameters interact. The agent lacks context to use the tool effectively.

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% (all 7 parameters have descriptions). The tool description does not add any additional meaning beyond the schema. Per guidelines, baseline 3 is appropriate when schema covers all parameters.

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 'Get transfer rumours for a specific player.' clearly states the action (get) and resource (transfer rumours) with a specific filter (player). It distinguishes from siblings like get_transfer_rumours_by_team_id by naming the key filter. However, it does not explicitly differentiate from get_transfer_rumour_by_id, though the plural 'rumours' implies multiple results.

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 provides no guidance on when to use this tool versus alternatives like get_all_transfer_rumours, get_transfer_rumour_by_id, get_transfer_rumours_by_date_range, or get_transfer_rumours_by_team_id. There is no mention of prerequisites or typical use cases.

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