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run_discovery_scan

Trigger a Discovery scan in ServiceNow to discover network and infrastructure devices using a schedule ID and optional MID server.

Instructions

[Write] Trigger a ServiceNow Discovery scan for network/infrastructure

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
schedule_idYesDiscovery schedule sys_id to run
mid_serverNoOptional MID server name
Behavior3/5

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

The description uses '[Write]' to indicate a write operation, aligning with annotations (readOnlyHint=false, destructiveHint=false). However, it does not disclose asynchronous behavior or expected side effects beyond the minimal annotations.

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

Conciseness4/5

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

Extremely concise (one line), front-loaded with '[Write]', but could benefit from more structure or detail without losing brevity.

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

Completeness2/5

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

No output schema and no description of return values or confirmation; lacks context about what happens after triggering (e.g., job status, logs). Incomplete for a tool with no additional documentation.

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% for both parameters, and the description adds no extra meaning beyond the schema definitions.

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 action ('Trigger') and resource ('a ServiceNow Discovery scan for network/infrastructure'), distinguishing it from sibling tools like list_discovery_schedules.

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

Usage Guidelines2/5

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

No explicit guidance on when to use this tool versus alternatives, such as listing schedules or other scanning methods.

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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