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

With no annotations, the description carries the burden of behavioral disclosure. It adds context by calling listings 'curated' and adding educational/non-recommendation disclaimers, but it does not mention result ordering, pagination, or that this is a read-only operation beyond the verb 'List'.

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 core purpose and filters are front-loaded in the first sentence, but the later legal/educational disclaimers take up multiple sentences and provide limited operational guidance. It is not bloated, but not every sentence 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?

For a simple optional-filter listing tool, the description provides a basic invocation path. However, with no output schema and no description of the returned result structure or how filters combine, an agent is left with meaningful unknowns.

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%, so the description must compensate. It only repeats the parameter names and labels them as optional filters; it does not explain what values q, category, and tag accept or what they filter on.

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 action ('List') and resource ('curated directory listings'), so the core purpose is clear. It is distinct from search_directory by implication, but it does not explicitly name or differentiate itself from sibling tools.

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 indicates filters are optional and names them, which gives some usage context. However, it does not state when to use this tool versus search_directory or other listing/search siblings.

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