list_ranger_groups
List Apache Ranger groups with pagination support to manage user groups in access policies.
Instructions
List Ranger groups.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| page_size | No | ||
| start_index | No |
List Apache Ranger groups with pagination support to manage user groups in access policies.
List Ranger groups.
| Name | Required | Description | Default |
|---|---|---|---|
| page_size | No | ||
| start_index | No |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits like read-only nature, pagination, or potential side effects. It only says 'List,' which implies read-only but does not mention pagination, rate limits, or return format. Insufficient for safe invocation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely brief (three words) but at the cost of completeness. It is under-specified rather than concise, missing essential context. A single vague sentence does not suffice.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of output schema, annotations, and parameter coverage, the description is wholly incomplete. It fails to explain return behavior, pagination limits, or how to filter results, leaving the agent without critical context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 0%, so the description must explain parameter meaning. It does not mention page_size or start_index at all, providing no value beyond the schema. The agent cannot infer appropriate values from the description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states 'List Ranger groups,' which is a specific verb and resource, giving a clear basic purpose. However, it does not differentiate from sibling tools like lookup_ranger_groups or get_ranger_group, which could also list groups. A score of 3 is adequate but lacking distinction.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives such as lookup_ranger_groups or get_ranger_group. The agent has no criteria to choose between them, reducing usability.
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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