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jschuller

ServiceNow MCP Server

by jschuller

List Ci

list_ci

Retrieve CMDB configuration items by class and encoded query. Filter results to find specific CIs efficiently.

Instructions

List CMDB configuration items with optional class and query filtering

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMaximum number of CIs to return
queryNoEncoded query string (e.g., 'operational_status=1')
fieldsNoComma-separated list of fields to return
offsetNoNumber of records to skip
class_nameNoCMDB class name (e.g., 'cmdb_ci', 'cmdb_ci_server', 'cmdb_ci_computer')cmdb_ci

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

With no annotations, the description carries the full burden of behavioral disclosure. It only says 'List' and mentions filtering, without explaining read-only nature, pagination behavior, or any special side effects. The schema provides defaults but the description adds no behavioral context.

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?

The description is a single, front-loaded sentence with no redundant words. It efficiently conveys the tool's purpose and key capabilities.

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

Completeness3/5

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

The tool has five parameters, no annotations, and an output schema. The description is minimal but the schema is rich, covering parameter details. However, it lacks guidance on when to use this vs list_records, which would help contextual completeness.

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 description coverage is 100%, so the baseline is 3. The description adds a high-level mention of 'class and query filtering,' but this is already detailed in the schema with examples. It does not significantly enhance parameter understanding.

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 the tool lists CMDB configuration items, using a specific verb ('List') and resource ('CMDB configuration items'). This distinguishes it from sibling tools like get_ci (single CI) and list_records (generic records).

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 usage by naming the resource and filtering options, but it does not explicitly state when to use this tool over alternatives like list_records or get_ci. No when-not or alternative guidance is provided.

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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