get_top_pages_by_backlinks

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions the API source and return content ('pages with the highest number of referring pages, domains, and IP addresses'), but lacks critical details like authentication requirements, rate limits, pagination behavior, error conditions, or whether this is a read-only operation. The description doesn't contradict annotations (none exist), but provides insufficient behavioral context for a tool with 6 parameters.

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 appropriately concise with two sentences that directly state the tool's function and return value. It's front-loaded with the core purpose and avoids unnecessary elaboration. However, it could be slightly more structured by explicitly separating purpose from behavioral details.

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 tool's complexity (6 parameters, no output schema, no annotations), the description is incomplete. It doesn't address how results are formatted, what 'comprehensive backlink analysis' entails operationally, or any limitations. For a data retrieval tool with multiple configuration options, more context about output structure and usage constraints would be needed.

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 schema description coverage is 100%, so all parameters are documented in the schema. The description adds no specific parameter semantics beyond what's in the schema—it doesn't explain how 'query' relates to 'searchType', what the sort fields mean in practice, or provide usage examples. With high schema coverage, the baseline is 3, and the description doesn't add meaningful value here.

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 the tool's purpose: 'Get leading pages by backlinks using Serpstat API' specifies the verb ('Get') and resource ('leading pages by backlinks'), and mentions the API source. It distinguishes from siblings like 'get_backlinks_summary' or 'get_referring_domains' by focusing on pages with highest backlink metrics, but doesn't explicitly contrast them.

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 provides no guidance on when to use this tool versus alternatives among the many sibling tools. It mentions 'comprehensive backlink analysis' but doesn't specify scenarios, prerequisites, or exclusions that would help an agent choose between this and similar backlink-related tools.

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