create_service_principal

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

With no annotations, the description carries the full burden of behavioral disclosure, but it only indicates a mutation ('Create') without explaining side effects, permissions, or response format. This leaves critical behavioral traits undisclosed.

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 concise and front-loaded with the action, but it is under-specified to the point of being nearly tautological. While it avoids verbosity, it fails to provide meaningful structure or context beyond the tool's name.

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 create tool with a complex opaque parameter and no annotations, the description is completely inadequate. It does not explain how to construct sp_data, what the expected output is, or any prerequisites, making it nearly impossible for an agent to use correctly.

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?

The input schema has 0% description coverage and the sole parameter 'sp_data' is an opaque object with no properties. The description does not compensate by explaining what sp_data should contain, leaving the agent without any guidance on how to invoke the tool.

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 clearly states 'Create a new service principal' with a specific verb and resource, distinguishing it from sibling tools like list_service_principals, get_service_principal_by_id, update_service_principal, and delete_service_principal. It lacks mention of scope or specific context, but the purpose is unambiguous.

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 create_application or create_group. The description only states the action itself, offering no context for decision-making.

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