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

No annotations are provided, so the description bears the full burden. It does disclose the ordering behavior and that it returns a list, but it omits how filters combine (e.g., AND/OR), pagination behavior, and whether any filters are required, which are important behavioral traits for a search tool.

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?

Two sentences, immediately states the verb and resource. No filler or redundant restatement of schema fields. The word count is appropriate for the tool's complexity.

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?

While the schema thoroughly covers parameters, the description lacks information about response format, filter combination logic, and default behavior (e.g., what happens with no filters). With no output schema and no annotations, the description is too sparse to fully prepare an agent to invoke the tool effectively, but it does convey the core search and ordering semantics.

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 input schema provides 100% coverage, with descriptions for all 8 parameters (limit, dates, country, eventname, alertLevel, eventTypes, minSeverity). The description adds no additional parameter semantics beyond listing 'various filters', so it doesn't exceed the schema baseline.

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 uses the specific verb 'Search' and states the resource ('disaster events') and output behavior ('returns a list of events matching the criteria, ordered by date descending'). It does not explicitly differentiate from sibling tools like get_events_by_country or get_recent_alerts, but the emphasis on arbitrary filters makes its scope clear.

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 guidance about when to prefer this tool over alternatives such as get_recent_alerts or get_events_by_country. The description only says 'various filters' without explaining trade-offs, so the agent gets no decision support.

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