Organic landing pages: GA4 + Search Console merged

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds the requirement of both properties but does not disclose behavior for missing data, invalid dates, or how the merge handles pages present in only one source. Given strong annotations, the bar is lower, but the description adds only marginal context.

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, well-structured sentence that front-loads the core purpose and then lists the metrics and requirement. It has no redundancy or filler, making it efficient and easy to parse.

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 merges two data sources and has 6 parameters, yet no output schema is provided. The description does not specify the output structure (beyond 'one table per landing page'), error handling, or parameter behaviors. Given the complexity and absence of an output schema, the description leaves critical details for correct invocation unexplained.

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 33% (siteUrl and propertyId have descriptions), so the description should compensate for the other four parameters (limit, sortBy, startDate, endDate). It does not explain their semantics or how they interact with the merged metrics. It only indirectly covers the two required parameters, leaving a significant gap for the rest.

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 clearly states the tool's purpose: to merge GA4 organic-search behavior with Search Console performance into one table per landing page. The verb 'combining' and specific resource ('landing page') make it distinct from sibling tools like gsc_search_analytics (Search Console only) and ga_run_report (GA4 only), which is a clear differentiation.

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 mentions a prerequisite ('Requires both the GA4 property and the Search Console property of the same site') but does not explicitly state when to use this tool versus alternatives (e.g., running separate queries). It implies usage but lacks explicit contrast with siblings, so the guidance is only partially provided.

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