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

Annotations already declare this a safe, idempotent read, so the extra credit comes from the description disclosing the domain model (multiple CVs per person, one default used by matches and applications) and the derived cv_state field including why no usable CV exists. No output schema exists, so this return-shape information is genuinely additive.

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?

Front-loaded with the usage cue, then a compact explanation of the returned data. The parenthetical gloss on default CVs is a touch dense but each clause carries information an agent needs to interpret the response.

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 zero-parameter read tool with no output schema, the description covers both when to call it and what comes back, including the conditional cv_state semantics. Only minor gaps remain, such as ordering or what an empty list means.

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?

The tool takes zero parameters, so there is nothing for the description to disambiguate and the baseline of 4 applies. It correctly does not waste space restating an empty schema.

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+resource (list the CVs on the account), scoped to a set of CV profiles rather than a single file. It distinguishes itself from siblings like get_my_cv_pdf and upload_cv by framing the tool as a roster view with labels and a state summary.

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 gives explicit triggering user phrasings ('which CVs do I have', 'is my CV uploaded'), which maps cleanly to the right node in the sibling tree. It stops short of naming the adjacent alternatives (upload_cv, get_my_cv_pdf) or stating exclusions, so it is clear context rather than a full when/when-not rule.

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