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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered structurally. The description adds nothing beyond that: no ordering of results, no indication of whether the list is truncated, no rate-limit or permission context, and no hint about what a result contains.

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 single sentence is short and front-loaded with the action, which is good. However, the garbled entity name consumes the most prominent slot and the one clause it does contain duplicates parameter names from the schema rather than adding information.

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 four-parameter paged listing with no output schema and zero schema documentation, the description should cover pagination semantics and the meaning/relationship of the two website identifiers. It covers neither, leaving an agent unable to call this confidently beyond the simplest zero-argument case.

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 full burden, yet it only names two of four parameters (website_id, website_uuid). It never explains whether those two are interchangeable or mutually exclusive, nor does it mention page/per_page or how paging interacts with the filter.

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 verb+resource pattern ("List ... external_backlinks") is readable, but the resource is named as the garbled token "seliee_external_backlinks", which adds no meaning and reads like a typo. Nothing distinguishes it from neighbouring list/backlink tools such as semrush_backlinks or list_articles_links_counts beyond the verb.

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?

"optionally filtered by website" implies the primary use case, but there is no explicit when-to-use, no statement of when the filter should be omitted, and no pointer to alternatives like semrush_backlinks for third-party backlink data. Usage is inferable but not guided.

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