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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the agent knows this is a safe, closed-world read. The description adds that only tracked entities are searchable and that results are identifiers, but says nothing about result limits, fuzzy vs exact matching, or behavior when both parameters are omitted.

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 sentence with the action and the payoff front-loaded, and the category list earns its place by clarifying what counts as a tracked entity. No filler or redundancy.

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 two-optional-parameter read-only lookup this is close to sufficient, and the annotations cover the safety profile. With no output schema, however, the description only vaguely indicates the return (ids) and does not say whether names, types, or multiple matches come back, leaving a real gap for an ID-resolution 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 100% and the schema already documents both optional parameters, including the 'kind' value list and free-text examples. The description's parenthetical category list largely restates the kind enum and adds no syntax, matching, or partial-name behavior.

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 gives a specific verb and resource ('Search the tracked entities') and enumerates the entity categories plus the outcome ('get their ids'), which tells an agent this is a name-to-ID resolver rather than a news feed. It stops short of explicitly distinguishing itself from sibling lookups like news_trending_topics or news_trending_people.

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 explicit when-to-use or when-not-to-use statement, and no alternative is named. Usage is only implied by 'get their ids', which suggests a resolution step before other entity-scoped calls, but the agent must infer that.

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