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

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description repeats 'Read-only' rather than adding to it. It does add real context beyond annotations: per-field redaction via '***', the guarantee that redaction is never null so it is distinguishable from empty, and the fact that all surfaces redact identically. That role/permission behavior is the description's main contribution, and it is worth crediting. Nothing is said about ordering, total counts, or result size limits.

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?

Three sentences, front-loaded with what is returned before filters and permission caveats. Every sentence carries information, though the closing clause about 'every surface redacts identically' is slightly redundant with the preceding redaction sentence.

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 read-only list tool with five optional parameters, no output schema, and no annotations beyond the safety hints, the description covers return shape, filters, and the redaction/permission model. The only material omission is pagination behavior.

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%, so the description has to carry the parameters, and it only partly does: it spells out the allowed status values (draft/open/paused/closed) and the meaning of location_id and responsible_user_id. The two pagination parameters, limit and offset, are never mentioned, leaving half the surface undocumented in both places.

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 opens with a specific verb and resource ('List the workspace's vacancies') and enumerates what comes back (stage scheme, location, headcount, open-application count). That is clearly distinct from the sibling list tools such as hr_list_applications or hr_list_stages, so an agent can select it without opening the schema.

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?

It names the fields usable for filtering (status, location_id, responsible_user_id) and gives explicit negative guidance: if fields come back redacted, ask the workspace owner for the HR role 'rather than trying another tool'. What is missing is guidance on when to page (limit/offset) or how this compares with other list endpoints.

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