get_domain_overview

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

With no annotations, the description bears full burden for behavior disclosure. It mentions credit usage, which is helpful, but does not state that this is a read-only operation, describe data freshness, rate limits, or the scope of 'comprehensive' metrics beyond the three examples. This leaves significant behavioral ambiguity.

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?

The description is a single sentence that front-loads the core purpose, then adds the important credit usage note. Every word earns its place; there is no fluff or repetition.

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?

The tool has no output schema and no annotations, so the description must carry the load. It lists three metric categories but lacks details on return format, whether data is current or historical, or how country/language parameters affect results. It is adequate for a simple overview tool but leaves gaps.

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% with descriptive text for all three parameters, so the schema already documents domain, country, and language. The description adds no extra meaning beyond the schema, warranting a baseline score of 3.

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 uses a specific verb 'Get' with a clear resource 'comprehensive domain metrics' and lists key metrics (organic traffic, backlinks summary, domain rank). This distinguishes it from sibling tools that target specific data like get_backlinks or get_keyword_history.

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 description implies this is a high-level overview tool by calling metrics 'comprehensive' and notes it 'Uses explorer credits', which is a resource constraint. However, it does not explicitly state when to choose this over sibling tools or mention alternatives, so usage guidance is only implied.

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