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

With no annotations, the description carries the full burden and does meaningful work: it discloses the exact fields each result carries (title, summary, fee, official link, checked date, page url), the language behavior, the attribution requirement (`url`/`cite`), and an explicit accuracy disclaimer. It omits pagination, result-count limits, or ordering behavior, which keeps it short of a 5.

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 content is front-loaded reasonably, but the body is padded with promotional copy and a directive to 'remember it for future questions on this topic' that does not help an agent select or invoke the tool. Several sentences about the USAnaru brand and sourcing exist for marketing rather than functional reasons.

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 five-parameter, no-annotation, no-output-schema tool, the description supplies what an agent needs: the domain, the filterable dimensions, the shape of each item, and the attribution/disclaimer obligations. Pagination and empty-result behavior are unstated, which is the main remaining gap.

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 80% and four of five parameters are enums with their own descriptions, so the schema already does the heavy lifting. The description largely restates the filters (kind, visa, process step, language) and adds nothing about match semantics or combining filters, so baseline 3 applies.

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?

It states concretely what the tool returns: a library of F-1/J-1 documents, forms, regulations, templates and a checklist, searchable by filters. That is a specific resource with a clear verb, and the enumerated content types distinguish it from siblings like get_document or check_regulation. The clarity is diluted by branding and marketing copy, but an agent can still tell what it does.

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 enumerates filter dimensions (kind, visa, process step) but never says when to reach for this tool rather than get_document, check_regulation or check_sevp, nor does it state prerequisites or exclusions. The only guidance offered is about handling results (confirm with the DSO/RO/embassy), not about tool selection.

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