List Object Storage buckets

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is fully covered by structured data. The '[READ]' prefix simply restates readOnlyHint, and the description adds no new behavioral context such as account scope, pagination, or result ordering.

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?

It is a single short sentence with the operation front-loaded, which is good, but the trailing internal reference '(FA developer-tools/sdk/object-storage/list-bucket)' is noise for an agent that cannot open that path.

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 parameterless read tool with no output schema, the description is minimally sufficient: annotations carry safety and the return shape (a set of buckets) is implied by the name. It still omits scoping and the sibling-distinction an agent needs to pick this over list_ai_buckets or list_storage_api_buckets.

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 tool takes zero parameters, so the baseline of 4 applies; there is nothing for the description to clarify beyond what the (empty) schema already conveys.

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 name, title and '[READ] S3 ListBuckets' phrasing state a specific verb and resource, so an agent knows this lists object-storage buckets. However, it gives no differentiation from sibling list operations such as list_ai_buckets, list_storage_api_buckets or list_objects, so the agent cannot tell which list tool applies to which bucket domain.

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?

There is no guidance on when to use this versus the several other bucket-listing siblings, no prerequisites, and no exclusions. The only hint of context is the internal SDK path reference, which does not help an agent decide between competing tools.

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