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

With no annotations, the description carries the burden. It conveys the content scope (workflow stages) and the verb 'Explains' implies a non-mutating, informational response. However, it does not explicitly state that it returns a textual guide or that it has no side effects, leaving some ambiguity about the exact output format.

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 two sentences, front-loaded with the core purpose and then a concise usage instruction. Every sentence adds value; there is no redundancy or filler.

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 informational tool with no output schema, the description covers the essential aspects: what workflow is explained, the key topics, and when to call it. It could be more explicit about the response type (e.g., 'returns a text summary'), but the given information is largely sufficient for an agent to select and use the tool correctly.

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 has zero parameters, so the schema is trivially covered (100%). The baseline for no parameters is 4; the description does not need to add parameter details. It correctly omits any parameter discussion because none exist.

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 explicitly states the tool's purpose: 'Explains the HR workforce marketplace workflow' with specific components (profiles, search, inquiries, negotiation-to-contract). This clearly distinguishes it from action-oriented sibling tools like hiring_search_agents or contract_get, positioning it as the onboarding overview.

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 description gives direct usage guidance: 'Call this first if you're new to the hr_* tools.' This tells the agent exactly when to invoke it, implying it is a prerequisite before using other hiring tools. No exclusions are needed for a purely informational tool.

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