list_objects

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

With no annotations, the description carries the burden of explaining behavior. It mentions the 'limit' parameter as maximum objects and 'prefix' as a filter, which are behavioral details. However, it does not disclose pagination behavior, permissions required, or error conditions, leaving some gaps.

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 structured with Args and Returns sections, front-loaded with the main purpose. It is concise but slightly repetitive in the Returns line echoing the first sentence. Overall efficient and readable.

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 list operation with no output schema, the description covers the essential information: purpose, parameters, and return value. It does not explain pagination or edge cases, but the tool is straightforward and the documentation is adequate.

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?

Despite 0% schema description coverage, the description fully explains each parameter: project_id, bucket_name, prefix as an optional filter, and limit with a default value. This adds meaning beyond the schema's bare types and titles.

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 states 'List objects in a Cloud Storage bucket' with a specific verb and resource, clearly distinguishing it from sibling tools like list_storage_buckets and upload_object. The tool's 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?

Usage context is implied by the name and description: use this tool to enumerate objects within a specific bucket. No explicit when-to-use or alternative guidance is provided, but it is clear enough for a straightforward listing operation.

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