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sonisoft-cnanda

now-sdk-ext-mcp

Get Catalog Category Details

get_catalog_category
Read-only

Retrieve service catalog category details by sys_id, including item count.

Instructions

Get details of a specific service catalog category by sys_id, including the count of items in that category.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sys_idYesThe sys_id of the catalog category.
instanceNoThe ServiceNow instance auth alias to use. This is the alias configured via `now-sdk auth --add` (e.g., "myinstance", "prod", "test"). The user will typically refer to this by name when saying things like "on my myinstance instance". If not provided, falls back to the SN_AUTH_ALIAS environment variable.
Behavior3/5

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

Annotations already provide readOnlyHint=true and openWorldHint=true, so the safe read nature is conveyed. The description adds the item count detail but does not disclose additional behavioral traits like authentication requirements or return format, which are not covered by annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single, front-loaded sentence that states the purpose and key detail without any filler. It is concise and well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

This is a simple read-only tool with fully described parameters and no output schema. The description gives enough context (including the item count) to select and invoke the tool, though it could explicitly mention expected return fields.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, with both parameters fully described. The description only mentions sys_id and does not add meaning beyond the schema. Baseline of 3 is appropriate since the schema carries the parameter detail.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it 'gets details of a specific service catalog category by sys_id', which is a specific verb+resource+scope. It also mentions the item count, distinguishing it from sibling tools like list_catalog_categories and get_catalog_item.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies use when you need details of a specific category identified by sys_id, but it does not explicitly state when to use it over alternatives or provide exclusions. The guidance is implicit rather than explicit.

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

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