get_indexer_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, so the safety profile is covered. The description adds the endpoint and parameter names but does not disclose what the response contains, whether it triggers a remote download, or any side effects. It doesn't contradict the annotations, but it adds little behavioral context beyond them.

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 short and front-loaded with the endpoint, but the 'Read Newznab' line is unhelpful and the parameter list duplicates schema information. It is concise but not informative; the space is not used effectively.

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 download operation with three parameters and no parameter documentation, the description is incomplete. It does not explain the return value (though an output schema exists), the relationship between id/link/file, or how this differs from the sibling download endpoints. An agent would struggle to invoke this correctly.

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 must compensate, but it only restates the parameter names ('id: Path parameter', 'link: Query parameter', 'file: Query parameter') without explaining their meaning or how they affect the download. The agent cannot tell what 'link' vs 'file' represent or when to provide them.

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' and shows the HTTP endpoint, but it never states what the tool actually does (downloads a release/NZB from an indexer by id, with optional link/file parameters). The verb 'Read' is vague and doesn't distinguish this from get_indexer_by_id or get_indexer_by_id_newznab. The endpoint path is the only concrete signal.

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 on when to use this tool versus siblings like get_indexer_by_id_newznab or get_by_id_download. The description merely lists parameters and the endpoint, leaving the agent to infer that this is for downloading content. No exclusions or alternatives are mentioned.

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