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

No annotations are supplied, so the description carries the full behavioral burden, and it discloses almost nothing beyond the topic: no read-only confirmation, no note on whether an empty filter set returns everything, no default ordering, no pagination semantics despite limit/offset existing, and no indication of result size or whether geometry is included by default. Only the parenthetical type examples add any behavioral hint.

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 front-loaded sentence with zero filler, and the resource is named immediately. It is arguably undersized for a 14-parameter tool, but nothing in it is wasted or buried.

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 tool with 14 optional parameters, no required anchor, no annotations, and no output schema, one sentence is not enough. Nothing explains how the three spatial modes (lat/lng/radius_km, bbox, road) relate or which wins when combined, what 'area' means concretely, or what an unfiltered call returns.

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 100%, so every one of the 14 parameters is already documented, which sets the baseline at 3. The description's facet list (jurisdiction, area, type, time) loosely maps onto the spatial and temporal parameters but adds no syntax, mutual-exclusivity, or default-value information beyond the schema.

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?

States a specific verb ('Search') and resource ('traffic events'), then enumerates what an event is (incidents, construction, closures) and the filterable facets (jurisdiction, area, type, time). It does not explicitly contrast with siblings like get_event or get_event_hotspots, but the retrieval-by-criteria scope is 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?

Usage is implied by the listed facets — an agent can infer this is the tool for finding events matching criteria rather than fetching one by id. However, there is no explicit when-to-use guidance versus get_event, get_event_hotspots, get_event_trends, or search_features, and no statement of prerequisites or sensible default calls.

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