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

Annotations already establish the safety profile (readOnlyHint, idempotentHint, destructiveHint=false, openWorldHint=false), so the description is not needed for that. It usefully goes beyond them by disclosing the return shape ('titles, short excerpts and links'), which tells the agent what it can expect back. It omits ranking, pagination, and empty-result behavior, but the annotations carry most of the remaining burden.

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 compact sentences with zero filler, front-loading what is searched and following with what is returned. Every clause carries information.

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 no output schema, the description does partially cover return values (titles, excerpts, links), which is appropriate. However, with two parameters at 0% schema coverage and no annotations gap to excuse it, the definition leaves query semantics and limit behavior unexplained.

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 0% for both parameters, so nothing documents what 'query' accepts (keywords, natural-language question, topic strings) or how 'limit' behaves beyond the default of 5 and max of 10. The description mentions neither parameter, leaving the agent to guess at query formulation.

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 ('Search') plus a clearly bounded resource ('CareerBhavan counsellor-written guides and articles') and enumerates the subject domains covered (admissions, fees, online degree validity, careers). This resource type is implicitly distinct from the sibling tools that deal with colleges and courses, though no sibling is named outright.

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 only implied: an agent can infer it should call this when looking for editorial guide content rather than college/course records, and the listed topic domains help. There is no explicit when-to-use, when-not-to-use, or named alternative among search_colleges or search_courses.

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