list_ranger_roles

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

The description contains no behavioral disclosures beyond the bare purpose. With no annotations provided, the agent is unaware of whether this operation is read-only, whether it requires authentication, what happens with empty results, or any potential side effects or rate limits. This is a critical gap.

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 a single, front-loaded sentence with no extraneous words. It is concise, but the brevity comes at the cost of omitting important usage and parameter details. Nonetheless, it earns points for efficient structure.

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 descriptions, the tool requires more context about pagination behavior, result format, and default values. The description does not address these missing elements, leaving the agent underinformed.

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 description coverage is 0%, but the description adds no information about the two parameters (page_size, start_index). The agent gains no guidance on their semantics, format, or how they affect behavior, so the description fails to compensate for the schema's lack of descriptions.

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 'List Ranger policy-engine roles' clearly states the action (list) and resource (roles), making the purpose immediately understandable. However, it does not differentiate from sibling tools like list_ranger_groups or list_ranger_users beyond the resource name, which is already evident from the tool name.

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 get_ranger_role for a specific role, or other list tools. There is no mention of prerequisites, context, or exclusion conditions, leaving the agent without decision support.

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