Organic landing pages: GA4 + Search Console merged

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

Annotations already indicate a safe read-only, idempotent operation. The description adds useful behavioral context beyond that: it merges data from two separate sources, focuses on organic-search sessions, and requires matching properties. It does not disclose error handling for mismatched properties or date-format constraints, but the core behavior is well stated.

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, no filler. The first sentence front-loads the output and contents; the second states the prerequisite. Every clause earns its place and the description is easy to parse quickly.

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?

For a read-only merged-report tool with 6 parameters and no output schema, the description covers the output shape (table per landing page), the metric groups, and the required property pairing. It omits details like date formats and limit behavior, but the overall invocation context is sufficiently complete for an agent to select and call it correctly.

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?

With schema description coverage at only 33%, the description partially compensates by clarifying that the date range applies to both data sources and that each output row corresponds to a landing page. However, it does not explain limit, sortBy, or startDate/endDate formats; the schema only provides defaults and enums. The description adds some meaning but leaves several parameters to inference.

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 a specific deliverable: one table per landing page combining GA4 organic-search metrics with Search Console performance for the same period. This clearly distinguishes the tool from siblings like ga_run_report (GA4 only) and gsc_search_analytics (Search Console only), because it explicitly merges both data sources.

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 gives a clear prerequisite: both the GA4 property and the Search Console property of the same site must be provided. This effectively tells an agent when the tool is appropriate. It stops short of explicitly naming alternatives or stating when not to use it, but the context is strong enough for correct selection.

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