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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the description does not need to restate safety. It adds that the result is query-level data associated with clicks and impressions, but it does not disclose aggregation behavior, date-boundary semantics, or any other operational quirks.

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, front-loaded sentence with no filler or repetition. It is concise and easy to scan, though its brevity comes at the cost of parameter and routing guidance.

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?

There is no output schema, so the description should explain what the tool returns and any important result details. It only says 'queries that drove impressions and clicks,' leaving out ordering, grouping, and exact returned fields. The schema covers parameter types and limits, but the absence of return-structure guidance makes this incomplete for a 6-parameter tool.

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 only 17%, with only site_url documented in the schema. The description adds no meaningful explanation for start_date, end_date, row_limit, type, or page_url beyond names and obvious context. Since low schema coverage places a heavier burden on the description, this is a clear gap.

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') and resource ('Google Search Console queries') and narrows scope to 'one page URL,' which clearly conveys intent. It differentiates from siblings like get_gsc_top_pages and get_gsc_top_queries through the page-level focus, though it does not explicitly name those alternatives.

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 one page URL' provides a clear context for when this tool is appropriate. However, the description does not explicitly contrast it with query_gsc_search_analytics or get_gsc_top_queries, so usage guidance is implied rather than stated as a routing rule.

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