zia_get_url_category

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

The annotation readOnlyHint=true already indicates this is a safe read operation. The description adds 'full detail' which suggests the response includes complete category information, but it does not disclose specific return fields, error behavior, or prerequisites beyond the ID. No contradiction with annotations.

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 a single, compact sentence that is front-loaded with the key action and resource. No filler or redundant words.

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 read-only get-by-ID operation, the description covers the essential purpose and scope. The main gap is lack of detail about what 'full detail' includes and how this differs from related lookups, but given the simplicity and annotations, it is nearly complete.

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?

The input schema only provides a title 'Category Id' for the single required parameter. The description's 'by ID' clarifies that category_id is the identifier of the URL category, adding minimal meaning. However, it does not provide format, source, or constraints for the ID.

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 uses a specific verb ('Get') and clearly identifies the resource ('single ZIA URL category by ID') and scope ('full detail'). It distinguishes from sibling tools like zia_list_url_categories (plural/list) and zia_get_url_category_predefined (predefined category).

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 usage when an agent needs to retrieve one specific URL category given its ID, but it does not explicitly state when to use this vs alternatives (e.g., listing categories or looking up a URL). No exclusions or alternative tool names are mentioned.

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