object_storage_generate_presigned_url

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

No annotations provided, so description must fully explain behavior. It discloses that the URL is temporary and for GET, but lacks details on expiration, required permissions, or that the object must exist. This is insufficient for a mutation-like tool.

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?

Single sentence, no redundancy, perfectly concise. Every word adds value.

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 the presence of an output schema (not shown), the description need not detail return values. However, it lacks context about typical use cases (e.g., sharing private objects) and does not mention that the URL is for external clients. It is adequate but not rich.

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 coverage is 100%, so baseline is 3. The description adds minimal extra meaning beyond 'temporary presigned GET URL', which aligns with expires_in and region but does not elaborate on their semantics.

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?

Description clearly states the action 'Generate' and the resource 'temporary presigned GET URL', specifying the HTTP method and temporary nature. It distinguishes from sibling tools like object_storage_put_object and object_storage_get_object_metadata.

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 explicit guidance on when to use this tool versus alternatives. The description implies usage for generating a URL for object retrieval, but does not mention prerequisites, alternatives, or exclusions.

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