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

Annotations already declare readOnlyHint, openWorldHint, and idempotentHint, so the safety profile is known. The description adds valuable behavioral context: it returns parsed AtomEntry objects rather than raw XML, and discloses that each entry's `link` field contains the request URL for use with get_request_detail. This goes beyond the annotations without contradicting 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 concise: three sentences, each contributing distinct value (purpose, usage alternative, output detail/next step). It is front-loaded with the main purpose and contains no filler or redundancy.

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 read-only annotations and presence of an output schema, the description covers purpose, usage guidance, output format, and a follow-up action. The only notable gap is the unmentioned `limit` parameter, but since it is optional with a default, the overall context is strong and nearly complete.

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. It explains `request_slug` conceptually ('specific FOI request') but completely ignores the `limit` parameter, its default, or its purpose. With only one of two parameters addressed, the description does not sufficiently 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 clearly states a specific verb ('Return'), a precise resource ('parsed Atom feed entries for a specific FOI request'), and the output form ('structured objects'). It distinguishes this tool from reading the raw feed resource and from get_request_detail, making the tool's purpose unambiguous.

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?

It explicitly instructs to use this tool instead of the raw wdtk://requests/{slug}/feed resource when structured AtomEntry objects are needed, and provides a clear follow-up action ('use the slug from that URL with get_request_detail for full detail'). This is explicit when-to-use guidance with a named alternative.

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