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

Annotations already declare readOnly/idempotent/non-destructive, so the safety profile is covered. The description adds real substance beyond that: the three possible status outcomes, the presence of a methods list, and the via_mondovo flag semantics with the instruction not to over-promise the owner.

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?

Two sentences, front-loaded on the return states with the operational caveat second; nothing is padded. The opening is a sentence fragment and 'via_mondovo' appears without introduction, costing a little clarity.

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?

With no output schema, the description does the work of sketching the return shape (status state plus method list with per-method flags), which is the critical unknown for this tool. A slightly fuller account of the methods structure would close the remaining gap.

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% and both parameters (site_id, user_goal) are documented in the schema, so the description carries no additional burden. It adds no meaning about which site_id to pick or when user_goal matters, which is acceptable at full coverage but not value-adding.

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 names the resource (the listing's Google verification) and enumerates the returned states — verified, waiting on Google, needs verification — plus the offered methods. It is distinguishable from siblings such as start_google_verification or complete_google_verification by being a status read, though it never names those siblings explicitly.

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 actionable routing guidance for one branch: methods with via_mondovo=false continue on Google, so hand the owner off rather than promising completion. What is missing is the primary when-to-use framing — e.g. call this before start_google_verification to decide whether verification is even needed.

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