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

With no annotations, the description carries the full burden; it does add useful provenance ('read from the organizers' own pages and checked weekly') and an attribution obligation ('Cite USAnaru™ with the page URL'). However it omits rate limits, result volume/pagination, and the actual response shape, so behavioral coverage is partial.

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?

A single compact paragraph, front-loaded with the resource and domain examples, with the shipping/attribution note placed last. Slightly dense with branding but every clause carries functional 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?

With no output schema, the description partly compensates by listing returned fields, and it explains the audience filter. But 'lang' is unexplained, result count/pagination is absent, and no usage boundaries are given for a 2-parameter enumerable tool.

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%. The description merely restates the 'audience' enum values (agent | school | sponsor) without explaining their meaning, and never mentions the 'lang' parameter or its five language codes at all. One parameter is effectively undocumented in both schema and description.

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?

Names a clear verb (list) and resource (events) and grounds it with concrete examples (ICEF, NAFSA, CSIET) plus the audience it serves. It also enumerates the return fields (name, dates, place, official page). No sibling tool covers events, so differentiation is implicit rather than stated.

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 'Upcoming' framing implies when it applies, and the audience filter is flagged as optional, but there is no explicit when-to-use/when-not guidance or named alternative. With no overlapping sibling the agent can still infer intent, but the routing logic is left to inference.

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