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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is known. The description adds valuable behavioral details beyond annotations: 'No login, no scraping, no proxies' and the cost of '$0.01/call', which helps an agent understand operational constraints. No contradiction with annotations.

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, with the first sentence packed with essential info (what it does, sources, outputs) and the second adding cost and limitations. Every word earns its place, and it is front-loaded with the core purpose.

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?

There is no output schema, so the description must explain return values. It lists key output metrics (role count, growing functions, remote share, what's new) and mentions cost and no-auth requirements. This is sufficient for a moderate-complexity read-only tool, though it could detail response structure more.

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 100%, so the baseline is 3. The description does not add any extra meaning about parameters beyond the schema; it focuses on outputs and benefits. This is adequate as the schema's parameter descriptions are already thorough.

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 the tool's function: pulling every open role from a company's public job board (Greenhouse, Lever, Ashby) and converting it into hiring signals such as role count, growing functions, remote share, and new roles. This specific verb+resource phrasing distinguishes it from sibling tools like hiring-trend-index or company-lookup.

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 provides clear context for use: 'turn it into a buying/expansion signal' indicates this is for assessing company growth via hiring. It does not explicitly name alternatives or when-not-to-use, but the scope is well-defined, so it earns a 4.

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