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

Annotations already declare readOnlyHint, idempotentHint and non-destructive, so the safety profile is fully covered. The description adds the useful scope constraint of 14 high-risk states and lists the content categories returned, but does not say which 14 states, nor how a non-covered state behaves.

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?

Three short, front-loaded sentences with the geography stated first and coverage limits placed last. Minor redundancy between the 'UNITED STATES' prefix and the '_us' name, but no wasted prose.

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 one required parameter, no output schema and annotations covering the read-only profile, the description is close to sufficient: it names the data categories returned and flags the limited state coverage. The main remaining gap is not enumerating the 14 covered states.

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 coverage is 100% and the single 'state' parameter already documents accepted formats (name or two-letter code). The description adds nothing about the parameter, so the baseline 3 applies.

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 concrete subject and sub-parts: the main natural hazards for a home in a US state, the insurer of last resort, and hazard disclosure rules. It gives an agent enough to know the payload, though it never differentiates itself from near-neighbours such as seller_disclosure_us or state_overview_us.

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 explicit when-to-use or when-not-to-use statement and no sibling is named as an alternative. The only routing signal is the coverage note 'Covered: 14 high-risk states', which implicitly warns the agent this tool is not universal for all 50 states.

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