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

With no annotations, the description carries the full burden and does disclose non-obvious behavior: results are spam/Sybil/scam-filtered, ranked by trust, carry assurance terms, and include ineligible candidates with the reason. It omits whether the call is read-only, any cost/permission implications, and pagination, but the filtering/ranking semantics are valuable context beyond the tool name.

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?

It is a single front-loaded sentence with no filler, but the nested parentheticals ('the vetted CRM shortlist (spam/Sybil/scam-filtered, ranked by trust, with assurance terms)') make it dense and slightly hard to parse. No wasted words, yet readability suffers.

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?

With no annotations and no output schema, the description does a fair job sketching the return shape (shortlist plus broader pool plus ineligible-with-reason), which is its strongest contribution. However, it leaves two input parameters unexplained and says nothing about side effects or permissions, so it is not fully sufficient for a 3-parameter, annotation-free tool.

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 0% across 3 parameters, so the description must compensate but only covers 'required_skills' implicitly. It says nothing about what 'task' or 'budget_usdc' mean or how budget affects ranking, leaving two of three parameters undocumented in both schema and description.

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 states a specific verb ('Rank agents') and resource ('for a set of required skills'), which is clear enough to distinguish it from most of the taifoon_* siblings at a glance. It does not explicitly name an alternative like taifoon_hire_suggest or taifoon_pool_quote, but the action itself is unambiguous.

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?

There is no when-to-use or when-not-to-use guidance, nor any named alternative among the many sibling matching/pool tools. Usage is only loosely implied by the phrase 'for a set of required skills', leaving the agent to infer when this beats taifoon_hire_suggest or taifoon_grid_pool.

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