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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false and destructiveHint=false, so the safety profile is covered. The description adds the meaningful behavioral fact that results are ordered as a recommended progression per career role, not an arbitrary list. It does not say whether vendors with no defined paths return empty or error.

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 no filler. It is arguably slightly too terse given the unstated ordering-vs-filtering behavior, but nothing is wasted.

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?

An output schema exists, so return values need not be explained, and annotations cover safety. What remains missing is the vendor identifier format and the empty-result behavior, which matter for a tool whose only input is an unvalidated string.

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 the single 'vendor' parameter, so the description must compensate. It provides example values ('aws', 'Microsoft Azure'), which is genuinely useful, but the casing and formatting are inconsistent between the two examples, leaving ambiguity about whether the value is a name, slug, or ID.

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 specifies the resource precisely: recommended exam order per career role, scoped to one vendor, first exam to last. It is a noun phrase rather than a verb+resource statement, but an agent can still tell this apart from list_exams (a flat list) and get_exam_details (single exam). Sibling differentiation is implicit 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?

There is no guidance on when to call this versus list_exams or search_exams, and no mention of prerequisites or what happens with an unknown vendor. The agent must infer usage from the one-line description alone.

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