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

No annotations are provided, so the description carries the behavioral disclosure burden. It adds a meaningful 'Read-only' signal, which is valuable, but it does not describe return format, pagination, or how the search/category filters behave. Behavioral disclosure is partial.

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 short, purposeful sentences. The core action and filters are front-loaded, and the read-only note and use-case add value without redundancy.

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?

The definition is adequate for a simple browse tool, but it is incomplete: there is no output schema, so the return format is left to inference; the category parameter is unexplained; and the overlap with sibling list_directory_listings is not addressed.

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 only 33%, with only the search parameter described. The description repeats that category and search are optional filters but adds no detail about category values, limit behavior, or filter semantics. It does not compensate for the schema gap.

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 clearly states the action ('List'), the resource ('public community listings on Sellular'), and the optional filters ('category or search'). It is specific and understandable, but it does not explicitly differentiate from the similarly named sibling list_directory_listings, so it stops short of 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?

It explicitly gives a use case ('Use to browse products already listed in the community directory') and notes the operation is read-only. It does not mention when not to use it or name alternatives, but the intended context is clear.

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