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

No annotations are provided, so the description carries the full behavioral burden. It discloses the meaningful precondition that the job must be completed, but says nothing about URL expiry, authentication needs, or what happens if the job is still running or failed.

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?

A single, front-loaded sentence with the verb, resource, and precondition all present and no filler. Nothing could be removed without losing meaning.

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 read tool with no output schema, the description adequately conveys the return value (a ZIP download URL) and the completion precondition. Minor gaps remain around URL lifetime and failure behavior, but the core is covered.

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 job_id parameter is documented in the schema itself. The description only adds the implicit constraint that job_id should reference a completed job, so it earns the baseline 3 without adding substantial parameter detail.

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?

States a specific verb ('Return') and resource ('ZIP download URL for a completed job'), which clearly separates it from content-returning siblings like get_transcript and status-checking get_job_status. It stops short of an explicit sibling contrast, so a 4 rather than 5.

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 phrase 'for a completed job' implies the precondition that the job must have finished, which is useful usage context. However, it names no alternative (e.g., use get_job_status to check completion first) and gives no when-not guidance, leaving usage partly inferred.

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