Skip to main content
Glama
frothkoetter

ranger-mcp-server

by frothkoetter

create_ranger_policy

Creates an Apache Ranger access control policy by submitting a complete JSON definition. Use this to programmatically enforce security rules.

Instructions

Create a Ranger policy from a full JSON payload. WRITE OPERATION

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
policy_jsonYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

With no annotations, the description should disclose behavioral traits like side effects, authorization needs, or impact. The note 'WRITE OPERATION' indicates mutation, but there is no detail on what happens upon creation, whether existing policies are affected, or what the output schema contains.

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

Conciseness3/5

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

The description is minimal but not wasteful. It is front-loaded with the purpose and emphasizes the write nature. However, given the complexity of the parameter, more detail would be warranted without violating conciseness.

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?

Despite an output schema existing, the description does not mention what the tool returns. For a creation tool with a complex JSON input, additional context about expected structure or constraints is missing, making the description incomplete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema has 0% coverage for parameter descriptions, so the description must compensate. It states the parameter is a 'full JSON payload', giving basic context, but does not specify the JSON structure, required fields, or validation rules, leaving the agent guessing.

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 clearly identifies the action (Create) and resource (Ranger policy), and specifies the input format (full JSON payload). However, it does not distinguish this from other create tools like create_access_policy, create_masking_policy, or create_tag_based_policy, which are listed as siblings.

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 vs. alternatives. It only states it's a write operation, but fails to mention prerequisites, when JSON payload is appropriate, or when to use other creation tools.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/frothkoetter/ranger-mcp-server'

If you have feedback or need assistance with the MCP directory API, please join our Discord server