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

Annotations only declare readOnlyHint and openWorldHint, so the description usefully adds that results are capped at five, come from an anonymous (no-auth) typeahead, and omit ticker suggestions. These are genuine behavioral traits beyond the annotations, though nothing is said about rate limits or result freshness.

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 tight sentences, front-loaded with the action and scope, then the constraints. Every clause earns its place with no filler.

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 an output schema present the description need not explain return shape, and annotations cover safety; the description completes the picture with result cap and exclusion notes. It stops just short of naming sibling alternatives, which would make it fully self-sufficient.

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 coverage is 100% and the single parameter 'q' is fully documented (2-100 characters) in the schema. The description adds no extra meaning about the query parameter, so the baseline of 3 for schema-covered params is appropriate.

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 (find) and resource (Benzinga news-article suggestions) with explicit scope: 'up to five current' hits from a typeahead. It distinguishes itself from the archive/paginated siblings by stating 'this is not a paginated archive search', letting an agent separate it from benzinga_news or benzinga_article without opening schemas.

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?

Provides clear when-not conditions ('this is not a paginated archive search', 'ticker suggestions are omitted'), which signals the intended lightweight lookup use case. However, it never names the sibling tools to use instead for full articles, headlines, or tickers, so the alternative routing is left implicit.

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