page_report

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

Annotations declare readOnlyHint=true and openWorldHint=true, and the description adds valuable behavioral detail beyond that: GA4 and index status are best-effort, and if GA4 is unauthorized or the property is unknown, the Search Console half is still returned with a note. This partial-failure behavior is not present in the annotations.

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 compact and front-loaded: the first sentence summarizes what the tool returns, the second gives a concrete use case, and the second paragraph explains the only important caveat. Every sentence earns its place.

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 are covered, and the description explains fallback behavior. However, with four parameters and zero schema descriptions, the lack of any parameter semantics is a clear gap: an agent cannot confidently know why site_url and property_id are needed or how days affects the report.

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%, so the description must compensate, but it does not define any of the parameters: url, days, site_url, or property_id. The only indirect clue is 'one page,' which does not meaningfully explain the required url param or the optional disambiguation params.

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 states exactly what the tool does: aggregates Search Console clicks/impressions trend, top queries, GA4 engagement, and index status into one call. It also gives a concrete trigger example ('how is /pricing doing?'), which clearly distinguishes it from narrower siblings like gsc_search_analytics or ga4_run_report.

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 explicitly says when to use this tool ('Use this for...'), providing clear context. However, it does not explicitly say when not to use it or name alternative sibling tools, leaving some routing decisions to inference.

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