cloud_storage_create_bucket

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

With no annotations, the description carries the full burden. It does disclose the return value (a success string or exception message), but it fails to mention permissions, idempotency, duplicate-bucket behavior, or how the operation behaves beyond the return message. The phrase 'if it uploaded' is also inaccurate for a create-bucket operation, adding mild confusion rather than clarity.

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 purpose. It uses clear Args/Returns sections with no filler. It loses one point because it is too sparse to fully compensate for the weak schema and because of the minor 'uploaded' wording issue, but structurally it is efficient.

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 no annotations, no output schema, and a schema that is just an open-ended 'request' object, the description needed to explain how to structure the call and what side effects to expect. It only provides field names and a terse return message, leaving critical gaps around request construction, error handling, and operation semantics. It is not complete enough for an agent to invoke reliably.

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 schema only exposes a single opaque 'request' object with additionalProperties: true and 0% description coverage. The description instead lists bucket_name and region as required arguments, but does not explain that they belong inside the 'request' object or how to map them to the schema. It adds some value by naming fields and region values, but the mismatch between the described arguments and the actual schema parameter is likely to mislead an agent.

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 opens with a specific verb+resource: "Create a new bucket." This clearly distinguishes it from sibling tools like cloud_storage_upload_file, cloud_storage_list_buckets, and cloud_storage_delete_object. 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?

The description provides no guidance on when to use this tool versus alternatives. It does not mention other cloud_storage tools, prerequisites, or scenarios where this should or should not be used. The only context is the action itself, which is implied by the name.

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