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

The description implies a read-only data retrieval operation ('provide you with a detailed overview'), while annotations declare destructiveHint=true and readOnlyHint=false. This is a direct behavioral contradiction, and the description adds no other behavioral context such as rate limits or side effects.

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 efficient and front-loaded, with no wasted clauses. It is concise, though it sacrifices nearly all operational detail in doing so.

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 complex backlinks endpoint with many nested filter parameters and numerous sibling tools, the description is substantially incomplete. It omits usage guidance, parameter semantics, and behavioral transparency. Output schema exists, so return values need not be explained, but the remaining gaps are large.

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?

The description adds no parameter information at all. It does not mention the required body, target domain, filters, limits, or any nested field, leaving the schema to carry the full burden despite reported 0% top-level schema description coverage.

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 states a specific resource and scope: domain pages with backlink data for each page. This distinguishes it from summary-level tools by emphasizing per-page data, though it does not name any sibling alternatives.

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?

The description gives no when-to-use guidance, prerequisites, or alternatives. With many sibling backlink tools available, an agent receives no help choosing this one over domain_pages_summary or other endpoints.

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