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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds useful return behavior by saying it returns up to 10 businesses with a few matching services. It does not discuss pagination, ordering, or empty-result behavior, so it is not fully rich.

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 tight sentences with the core purpose and return behavior front-loaded. There is no filler, and the redundant 'Read-only' phrase is minor.

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?

For a simple search tool with fully described parameters and rich annotations, the description covers the essential purpose, inputs, and result size. Because there is no output schema, it carries some burden for return values, and it provides only a brief indication of what is returned. It is sufficient but not exhaustive.

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 schema already documents all three parameters and sets the baseline at 3. The description adds some semantic context by saying keyword matches business name, city or district, or type of class, and by noting keyword and category can be combined. It does not go beyond the schema on the limit parameter, but the added keyword meaning is meaningful.

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 gives a specific verb and resource: search BOP's listed businesses. It also explains that search can be by keyword and/or category and says results include up to 10 businesses with matching services. It does not explicitly distinguish this from the sibling tool get_business, which keeps it from a 5.

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 implies this is the discovery tool for finding businesses by keyword or category. However, it does not explicitly state when to use this versus get_business, nor does it mention when not to use it. Usage is clear enough but left to inference.

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