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

No annotations are provided, so the description carries the full burden. It mentions a cost of 10¢ per call, which is a transparent operational detail, but it does not disclose response format, pagination, error behavior, or any rate limits. For a read operation, the description does not clarify whether the record includes both sold and for-sale statuses, or how 'most-recent' is defined (e.g., by date). This is insufficient for a tool that likely has nuances.

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 very brief (one line plus pricing). It is concise and front-loads the core purpose. However, it may be too brief, omitting critical details; conciseness is good but not at the expense of necessary information. The pricing note is useful but could be placed elsewhere.

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 an output schema (not provided in the input), which may explain the return structure, so the description doesn't need to detail return values. However, for a tool that retrieves data, the description is incomplete: it doesn't specify what data fields are returned (even though output schema exists, the description should hint at what 'record' includes), nor does it mention any limitations or alternatives. Given the sibling count, the description is inadequate for correct selection.

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%, and the description does not explain the parameter 'gnaf_id' at all. The description only says it is a record for a property, but does not define what gnaf_id is (e.g., Geocoded National Address File identifier) or how it should be formatted. With a single required parameter, the description should at least clarify its semantics; it completely fails to do so.

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 'Most-recent Sold or For Sale record' clearly identifies the tool's purpose: retrieving the latest sale or listing record for a property. However, it does not explicitly differentiate from the sibling tool 'properties_sale_history' (likely the full history) or 'properties_sale_history_latest' (which may be an alias or distinct). The verb 'retrieve' is implied but not stated, and the resource is 'record' which is somewhat vague.

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 guidance on when to use this tool versus alternatives like properties_history_all or properties_sale_history. The description does not mention any conditions, exclusions, or prerequisites beyond the required gnaf_id. An agent is left to infer that it should use this tool when needing the most recent sale record, but no explicit direction is provided.

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