get_rates

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

No annotations are provided, so the description carries the full behavioral burden. It usefully enumerates the returned data (rate, digital taxability, SaaS notes, verification metadata), which signals an informational lookup, but it says nothing about data recency, sourcing, rate limits, or whether results are cached.

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?

Two sentences, zero padding, and the resource plus return payload are front-loaded in the first clause. Every element earns its place.

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 output schema, the description takes on the job of describing return values and does so concisely, listing the four returned data categories. It stops short of explaining what the format enum variants yield or the granularity of 'verification metadata,' leaving minor gaps.

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 all three parameters are already documented in the schema, establishing a baseline of 3. The description only reinforces the state-scoping behavior already present in the schema and adds no new semantics for format or explain.

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?

States a specific verb ('Get') and resource ('US sales tax rates') with explicit scope ('all 51 jurisdictions or a single state'). It is distinguishable from calculate_tax and track_payment by implication, but never names or contrasts a sibling explicitly.

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?

Scope usage is implied by 'for all 51 jurisdictions or a single state,' which hints that omitting state broadens the query. There is no explicit when-to-use guidance, no statement of when to prefer calculate_tax instead, and no prerequisites called out.

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