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

Goes beyond readOnlyHint/idempotentHint by disclosing that the call is free, that returned links require authentication, that a link does not guarantee results are ready, and that results live behind results_tool_arguments rather than in this response. That is real behavioral context an agent could not infer from the annotations. Missing only whether a pending operation can be polled repeatedly or how long pending states persist.

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?

Every sentence carries information, but they are densely packed with multiple ideas each (cost, trigger, resubmission rule, link display, result retrieval, auth caveat), and 'Free:' is a terse prefix whose referent is unclear. It is front-loaded appropriately with the trigger condition, yet could be split for faster scanning.

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 one-parameter read-only tool with an output schema, the description covers the essentials: when to call it, what fields matter in the response, where results actually live, and the auth limitation on links. Since an output schema exists, the absence of a full return-value breakdown is acceptable, leaving only polling/lifetime behavior unaddressed.

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 0% and the single operation_id parameter has no inline documentation, so the description must carry it. It implicitly defines operation_id as the identifier from the interrupted call and warns against minting a new one, which is useful but does not state format, source location, or what an invalid/stale ID does.

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 and resource ('check an operation') and scopes it to the recovery case after an interrupted call, so an agent can tell it is a status-recovery tool rather than a results reader. It even points to the results reader ('use results_tool') for the follow-up, though it never explicitly contrasts its own scope against vri_bulk_status or the other status-like siblings.

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?

Gives a clear triggering condition ('after an interrupted call') plus a strong directive not to resubmit pending work under a new ID, which is genuinely actionable routing guidance. It does name the alternative for retrieving actual results, but offers no when-not-to-use conditions beyond the resubmission warning and no guidance for the non-interrupted case.

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