create_ranger_role

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

No annotations provided; description only adds 'WRITE OPERATION' but lacks details on permissions, side effects, or whether existing roles are overwritten. Does not disclose return type or error handling.

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?

Very short but under-specified. Single sentence with bold note is concise but misses key details, making it less effective than a slightly longer but more informative description.

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?

For a tool with 5 parameters and many siblings, the description is incomplete. Does not explain output (though output schema exists) or differentiate from other create tools.

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%; description only hints that users/groups are optional members. Does not explain role_name, description, or service_name beyond their names in the schema.

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?

Clearly states the tool creates a Ranger role with optional members. Distinguishes from sibling tools like create_ranger_user and add_users_groups_to_role.

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 on when to use this tool versus alternatives or prerequisites. Does not mention that members can also be added later via add_users_groups_to_role.

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