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

readOnlyHint=true already tells the agent this is a safe read, so the description only needs to add context. It contributes the useful detail that matching spans four fields, but says nothing about result limits, ordering/relevance, or pagination behavior on a search surface where those matter.

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 the verb, resource, and match scope; every clause carries information and there is 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?

For a two-parameter read-only search with a fully described enum and no output schema, this is nearly sufficient. The only real gap is what a result looks like and whether results are ranked or capped, which is minor at this complexity level.

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 50%: the audience parameter is fully documented with its enum semantics in the schema, while query is undocumented there. The description partially compensates by naming the fields query matches against, but adds nothing on matching rules (exact vs substring, case sensitivity).

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?

Specific verb (search) plus resource (BotPlaza skills) and the searched fields (names, taglines, descriptions, tags), which is well beyond a tautology. It doesn't explicitly contrast with the sibling list_skills or get_skill, so the differentiation is inferable 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?

Keyword search implies its own use case, but the description never says when to prefer this over list_skills (browse everything) or get_skill (fetch one by id). No exclusions or prerequisites are stated, leaving usage to inference.

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