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sonisoft-cnanda

now-sdk-ext-mcp

Approve Change Request

approve_change

Approve a change request and add optional comments to update its approval status.

Instructions

Approve a change request with optional comments. Sets the approval field to 'approved'. IMPORTANT: This changes the change request's approval status.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
instanceNoThe ServiceNow instance auth alias to use. 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.
sys_idYesThe sys_id of the change request to approve.
commentsNoOptional comments to include with the approval.
Behavior2/5

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

With no annotations, the description carries full burden. It reveals the state change (approval field set to 'approved') but omits side effects, permissions, or reversibility, which are critical for a mutating operation.

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 with no redundancy. The 'IMPORTANT' warning emphasizes the key behavioral trait, making the description efficient and front-loaded.

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 one-action tool, the description explains the outcome and warns about state change. However, it lacks prerequisites or post-conditions, but given tool simplicity, it is mostly 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?

Schema coverage is 100%, so baseline is 3. The description adds minor context ('Sets approval field') but does not significantly augment parameter meaning beyond what the schema already provides.

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's action ('Approve a change request') and the effect ('Sets the approval field to 'approved''). It distinguishes from siblings like 'resolve_incident' by specifying the resource and outcome.

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?

The description provides no guidance on when to use this tool versus alternatives (e.g., when to approve vs. reject, or prerequisites). The 'IMPORTANT' note only reiterates the behavior, not usage context.

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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