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 nothing beyond that: no behavior when both identifiers are supplied, when neither is supplied, or when the website doesn't exist (error vs empty).

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?

A single compact sentence with the resource and lookup keys front-loaded, no filler. It could add one short clause about identifier requirements without bloat.

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 simple read-only getter with full annotation coverage and no output schema, the essential lookup information is present. Still missing edge-case behavior (no identifier, both identifiers, not-found) that an agent would need to call it 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 carries the burden; it does name both parameters and imply they are alternative lookup keys. However it omits precedence when both are given, and whether either is actually required, so it only partially compensates.

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?

States a specific verb ('Fetch') and resource ('a single seliee_website'), and the singular framing distinguishes it from the list_websites sibling. The odd internal entity name 'seliee_website' is unexplained, but the intent is 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?

No guidance on when to use this versus list_websites or the related getters (get_website_faqs, get_website_report). The 'website_id or website_uuid' phrasing hints that one identifier is needed, but neither the description nor the schema (0 required params) states that explicitly.

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