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now-sdk-ext-mcp

now-sdk-ext-mcp

by sonisoft-cnanda
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

Get Current Application Scope

get_current_scope
Read-only

Retrieve the active application scope from a ServiceNow instance to determine the context for development and automation tasks.

Instructions

Get the currently active application scope on the ServiceNow instance.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "get_current_scope"
  }
}

Input Schema

NameRequiredDescriptionDefault
instanceNoThe ServiceNow instance auth alias to connect to. This is the alias configured via `snc configure` (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.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv2.5.1

TDQS

A3.8/5.0
Behavior3/5

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

Annotations already provide readOnlyHint=true and openWorldHint=true, and the description is consistent with these. The description adds no extra behavioral context such as return value format or potential errors, but for a simple read-only getter, the annotations sufficiently cover the safety profile.

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 that directly states the purpose with no redundant words. It is optimally 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?

For a simple read-only tool with one optional parameter and no output schema, the description covers the essential purpose. It does not explicitly describe the return value format, but the name and wording imply the current scope name. Given the low complexity and good annotations, the description is sufficiently complete.

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?

The input schema fully documents the single 'instance' parameter with a detailed description, achieving 100% schema coverage. The tool description adds no additional parameter semantics, so the baseline score of 3 is appropriate.

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 a specific action ('Get') and resource ('currently active application scope'), making it distinct from related tools like set_current_scope or get_app_details. It is unambiguous and directly conveys the tool's function.

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?

Usage context is implied: the tool is for when one needs to know the current application scope. However, the description does not explicitly mention when to prefer this over alternatives (e.g., set_current_scope) or any prerequisites, leaving the agent to infer the appropriate scenario.

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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