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

With no annotations, the description carries the full burden. It discloses that the operation is a read (non-destructive), that data is private, and that an API key is required. However, it omits return format, pagination, rate limits, and what happens on auth failure, leaving notable gaps for a tool with no annotation coverage.

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 concise sentences, front-loading the tool's purpose and then stating the auth requirement. Every word earns its place with 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 simple read-only tool with no parameters, the description covers purpose, privacy, and authentication. It lacks details about the return structure, but given the low complexity and lack of output schema, this is largely adequate. A minor gap remains regarding what the response looks like.

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 there is no parameter semantics to document. Per the scoring rubric, zero parameters yields a baseline of 4. The schema description coverage is 100% but irrelevant given the absence of parameters.

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 uses a specific verb 'Read' and lists the exact resources (hiring requests, quotes, spending caps, delegated tasks), making the tool's function clear. It does not explicitly name sibling tools or differentiate itself from alternatives, which is why it falls short of a 5.

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 implies usage by stating 'Read your private hiring...' and provides a prerequisite ('Requires API key'), but it does not state when to use this tool versus alternatives like request_agent_quote or delegate_agent_task. The guidance is present but incomplete.

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