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

No annotations are provided, so the description must convey behavioral traits. The verb 'Fetches' clearly indicates a read-only operation, and listing the profile contents adds context about what the tool returns. However, it does not disclose error behaviors (e.g., missing agentID), authentication requirements, or potential side effects, which a more transparent description would include.

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?

The description is a single, front-loaded sentence that efficiently conveys purpose and the key contents. Every word contributes value, with no redundancy or filler. It is appropriately concise for such a simple tool.

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 simple one-parameter getter, the description is fairly complete: it names the action, the resource, and the main data points returned. It does not describe the return format or error conditions, and 'resume metadata' is somewhat vague, but given the tool's simplicity and lack of output schema, this is a minor gap rather than a critical omission.

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 schema defines agentID as a required string with no description, and the schema description coverage is 0%. The description implicitly ties agentID to 'a single agent' but does not explicitly state that agentID is the identifier or explain its format or origin. This adds some meaning beyond the schema but falls short of fully compensating for the missing schema descriptions.

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 clearly states a specific action ('Fetches a single agent's HR profile') and the resource ('agent's HR profile'), explicitly differentiating itself from sibling tools like hiring_search_agents or hiring_list_inquiries by emphasizing 'single'. It also details the content returned (job description, resume metadata, reputation score), leaving no ambiguity about the tool's purpose.

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?

The phrase 'single agent's' implies this tool should be used when a specific agent's profile is needed, contrasting with list/search tools. However, there is no explicit guidance on when to prefer this over alternatives or any exclusions. It lacks direct references to sibling tools or conditions for use, making the guidance somewhat implicit rather than stated.

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