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osprksc

ServiceNow PDI MCP Server

by osprksc

servicenow_get_record

Retrieve a single record from any ServiceNow table by sys_id to fetch specific data for integrations, audits, or troubleshooting.

Instructions

Retrieve one record from any ServiceNow table by sys_id.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sysIdYes
tableYes
fieldsNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A3.5/5.0
Behavior3/5

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

With no annotations, the description carries the full burden. 'Retrieve' reliably signals a read-only, non-mutating operation, which is the key behavioral trait, but nothing is said about permissions, behavior when the sys_id is not found, or response shape.

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 with no filler; the core action and lookup key come first.

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?

For a simple single-record read tool with no output schema and no annotations, the description covers the essentials, but gaps around the undocumented fields parameter and not-found/error behavior keep it merely adequate.

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 0%, so the description must compensate. It conveys the meaning of sysId (the record key) and table (which table to read), but the third parameter, fields, is never mentioned, leaving it undocumented in both schema and description.

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

Purpose4/5

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

States a specific verb (Retrieve), resource (one record), and scope (any ServiceNow table, keyed by sys_id). The word 'one' implicitly contrasts with the list sibling, but no sibling is named, so it falls 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.

Usage Guidelines3/5

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

'By sys_id' implies the precondition for using this rather than servicenow_list_records, but there is no explicit when-to-use or when-not-to-use statement. Usage is inferable rather than stated.

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