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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds the meaningful behavioral constraint that dates must be an exact saved window and are inclusive, but says nothing about pagination behavior despite the cursor parameter.

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?

A single front-loaded sentence with no filler; the key scoping constraint (exact saved window, inclusive) comes first. It is efficient, though arguably too terse given the parameter surface.

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 an 8-parameter read tool with 13% schema coverage and no output schema, the description is thin. It omits pagination semantics, filtering behavior, and what the returned evidence looks like, leaving the agent under-informed on key details.

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 13% (just cursor), so the description carries most of the burden and largely fails. It clarifies inclusive date semantics for window_start/window_end but leaves query, limit, site_url_id, and resolution_outcome unexplained.

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 names the resource precisely (Search Console queries matched to site pages) and the scope (an exact saved window with inclusive dates), which is more specific than the tool name alone. It does not distinguish itself from siblings such as read_search_dataset or read_performance, but the resource is clear enough to identify the operation.

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?

There is no statement of when to use this tool versus alternatives, nor any prerequisite about needing a previously saved window. The agent must infer that this is a read of pre-saved evidence rather than an ad-hoc query.

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