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

Annotations already establish that this is a safe read-only, non-destructive, non-open-world operation. The description adds useful context about the kind of AI visibility data returned, but does not discuss freshness guarantees, limits, or other operational behavior beyond 'Latest'.

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 with no wasted language. The data returned is stated first, followed immediately by the one parameter 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?

For a simple one-parameter read-only tool with an output schema, the description covers the core purpose and projectId usage. It is nearly complete, though it could clarify default project behavior when projectId is omitted.

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 explain projectId. It does so effectively by saying to pass projectId when the user has more than one project, clarifying both its purpose and optional nature, though it does not restate the UUID format already defined in the schema.

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 resource and scope: the latest AI search snapshot plus keywords where an AI Overview appears but does not cite the user. It is specific enough to distinguish this from general SEO and keyword tools, though it does not explicitly name sibling 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 only usage guidance is about when to pass projectId, not when to use this tool versus siblings such as get_competitor_overview or get_seo_briefing. There are no exclusions or alternative-selection cues.

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