get_by_id_download

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds no behavioral context beyond that, such as what the download does, what response to expect, or any limitations. It merely states 'Read Newznab' and the endpoint, which does not enrich the annotation-provided information.

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 short, but brevity is not the issue – it is under-specified. It does not front-load useful information; 'Read Newznab' is vague and unhelpful. The structure is a bare endpoint and parameter list, which is not structured to aid an agent in understanding the tool's behavior or usage.

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 three parameters, one required, no schema descriptions, and only an output schema existence flag (not its contents), the description is grossly inadequate. An agent cannot determine what the tool does, how to use it correctly, or what it returns. This is a low-complexity tool but the description leaves all critical context 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?

Schema description coverage is 0%, and the description does not explain the meaning of any parameters. It simply lists 'id: Path parameter', 'link: Query parameter', 'file: Query parameter' – redundant with the schema structure. There is no clarification of what 'id' identifies, what 'link' or 'file' control, or any constraints beyond type and required status. The description fails to compensate for the lack of schema descriptions.

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 says 'Read Newznab' which is cryptic and does not clearly state what resource or action this tool performs. It fails to specify that it downloads a file or content associated with an id, and it does not differentiate it from siblings like get_indexer_by_id_download or get_by_id_api. The verb 'Read' is present but the resource is undefined, making the purpose ambiguous.

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?

There is no guidance on when to use this tool versus alternatives. The description provides no context about scenarios, exclusions, or prerequisites. It only lists parameters without explaining their purpose or how they relate to the action.

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