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nks1097

Splunk Enterprise MCP Server

by nks1097

splunk_manage_role

Create, update, or delete Splunk security roles with specified capabilities and allowed indexes; requires write mode and human confirmation for changes.

Instructions

Create, modify, or delete a security role (requires write mode and human confirmation).

Args: role_name: Role identifier. action: 'create', 'update', or 'delete'. capabilities: List of granted capabilities. allowed_indexes: Allowed searchable indexes. confirm: Confirmation flag.

Input Schema

NameRequiredDescriptionDefault
actionNocreate
confirmNo
role_nameYes
capabilitiesNo
allowed_indexesNo

Output Schema

NameRequiredDescriptionDefault
dataNoOutput payload or results
errorNoError message if execution failed
successNoWhether the tool execution succeeded
metadataNoExecution timing, pagination and environment details
warningsNoOperational warnings or notices
request_idNoCorrelation ID for audit trail and observability

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.4/5.0
Behavior3/5

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

With no annotations provided, the description carries the burden of behavioral disclosure. It helpfully states that write mode and human confirmation are required and lists the create/update/delete actions, but it does not explain the effects of each action, whether changes are reversible, or what happens to unspecified fields during an update.

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?

The description is short and front-loaded with the core action and key prerequisite. The Args section is somewhat repetitive of the schema, but useful because the schema has no parameter descriptions.

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?

This is a mutation tool with no annotations and 0% schema description coverage, so the description needs to carry substantial context. It covers the main action and confirmation requirement, and an output schema exists so return values need not be described, but it still lacks detail about update semantics and destructive behavior.

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 explain all five parameters. It identifies each parameter and gives brief meanings, including the action values create/update/delete, but it remains thin on formats and edge cases, such as how capabilities and allowed_indexes are interpreted.

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?

The description states a specific verb set and resource: create, modify, or delete a security role. It is clear enough to distinguish this from read-only siblings like splunk_list_roles and splunk_get_role_capabilities, though it does not explicitly name those alternatives.

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?

The description gives an important usage prerequisite: it requires write mode and human confirmation. However, it does not explicitly say when to use this tool versus sibling role tools or when not to use it.

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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