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

The description adds behavioral context beyond the annotations by specifying the required scope (org:manage), the exact HTTP mapping (POST /manage-org/app), and that the same PassFast billing and rate limits apply. It does not contradict the readOnly, destructive, or idempotent hints, and it credibly explains the operation's access and API characteristics.

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 compact and well-structured with bold labels and a clear endpoint mapping. The opening line 'Create a new app' is somewhat redundant with the following sentence, but the rest of the content is focused and front-loaded with essential scope and path information.

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 simple one-parameter creation tool with no required parameters, the description covers the essential scope, path, and API constraints. It does not describe the response shape or error behavior, but the absence of an output schema and the low complexity make the provided context reasonably complete for an agent to invoke the tool 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?

Schema description coverage is 100%, and the single 'name' parameter is already documented as 'App display name' with a default. The tool description does not add any additional parameter semantics, so the baseline score of 3 is appropriate.

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 the verb 'Create' and the resource 'a new app within the organization,' so an agent can tell this is for creating an app resource. It is specific and accurate, but it does not explicitly distinguish itself from sibling create* tools, so it stops short of the highest clarity score.

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?

The description gives useful operational context: the org scope, the OpenAPI operationId, and the POST path. It implies that this tool is used when creating an app, but it does not explicitly state when to prefer this over alternatives or when not to use it, so the usage guidance is more implied than explicit.

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