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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description adds one genuinely useful behavioral fact – the cost is $0 per successful request – but it is boilerplate pricing text that says nothing about the retrieval behavior, task lifetime, or failure modes.

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 short, but that brevity is the result of having no content rather than being concise. The two sentences are a pricing template with HTML comment markers that consume the entire description while conveying nothing about the tool's operation.

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?

An output schema exists so return values need not be described, but the description still omits the most basic facts: that this retrieves results for a previously submitted GMB updates task, that the task id comes from the submit sibling, and the 30-day expiry. For a tool in a large family of near-identically named fetch tools, this leaves the agent with nothing to disambiguate on.

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 there is only one parameter, whose UUID format and 30-day usability window are fully documented in the schema. The description adds no parameter meaning at all, so the baseline 3 applies.

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 body contains only an auto-generated pricing banner ('Published reference price: $0 USD per successful request') and never states what the tool does. The only hint of purpose comes from the title, not the description text. For an agent comparing this against sibling fetch/submit tools, this is effectively missing.

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 when-to-use guidance, no mention of the companion post_dataforseo_business_google_gmb_updates_submit tool that presumably creates the task, and no note about the 30-day retrieval window that matters for deciding whether to call this. Nothing routes the agent between this tool and its siblings.

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