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

Beyond the thin annotations, the description discloses run-time checks (source ownership, version, expiry, membership), signaling the call can fail or return diagnostics based on freshness/ownership, and it explicitly bounds the result set to a crawl sample rather than the whole site. It stops short of stating failure modes, cost, or how the sample is selected.

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?

Four short sentences, front-loaded with what is returned and followed by caveats; no filler. The closing sentence partly repeats the "bounded crawl sample" framing of the opening one, a minor 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 no output schema and sparse annotations, the description does reasonably well on return content (typed evidence plus missing-field diagnostics) and sampling limits, but leaves the task_id contract and the read-vs-work distinction under-specified for a tool with two required params.

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 carry parameter meaning, and it does not: task_id is never explained (origin, lifetime, whether it must match an existing crawl task) and pageUrl is never constrained to pages inside the sample. With two required params and zero schema documentation, this leaves real ambiguity.

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?

"Page Structured Data" essentially restates the title/name; the only real content is "Returns typed source evidence and missing-field diagnostics," which hints at extraction of page markup and diagnostics but never says what kind of structured data (JSON-LD, schema.org, Open Graph) is extracted. It also does not distinguish it from nearby siblings like nexscope_seo_page_evidence or nexscope_page_keyword_density.

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?

There is no explicit when-to-use or when-not-to-use guidance and no named alternative, despite many sibling page/SEO tools. The only usable cue is the implied prerequisite that a crawl sample (task_id) must already exist, conveyed obliquely through "from a bounded crawl sample."

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