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sonisoft-cnanda

now-sdk-ext-mcp

Update Knowledge Article

update_kb_article

Update specific fields of a ServiceNow knowledge article without affecting others. Modify title, content, category, or workflow state by providing only the fields to change.

Instructions

Update an existing knowledge article's fields. Only the fields provided will be modified; all others remain unchanged.

IMPORTANT: This modifies the article on the instance.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
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.
sys_idYesThe sys_id of the article to update.
short_descriptionNoUpdated article title.
textNoUpdated body content in HTML format.
wikiNoUpdated body content in wiki markup format.
knowledge_base_sys_idNoMove the article to a different knowledge base.
category_sys_idNoChange the article's category.
workflow_stateNoChange the workflow state ('draft', 'published', 'retired').
article_typeNoChange the article type.
activeNoSet the article's active flag.
additional_fieldsNoOptional additional fields to update as key-value pairs.
Behavior3/5

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

No annotations provided; the description states the tool modifies the article, which is the key behavioral trait, but does not disclose permissions, rate limits, or other effects.

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?

Two sentences, concise and front-loaded with the core action, and the important note is highlighted.

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?

Lacks information about return values or error handling; for a tool with 11 parameters and no output schema, more context is needed.

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%, so parameters are well-documented in the schema. The description adds only the patching behavior, not details per parameter.

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 verb 'Update' and the resource 'existing knowledge article', distinguishing it from create_kb_article (create) and publish_kb_article (publish).

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

Usage Guidelines4/5

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

The description notes 'Only the fields provided will be modified; all others remain unchanged' and emphasizes modification occurs on the instance, providing clear context for usage.

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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