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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true and openWorldHint=false, and the description reinforces rather than contradicts them by saying it 'opens nothing by itself.' It adds substantive context the annotations cannot convey: the return value is a step-by-step UI walkthrough, and the official API is incomplete, which explains the Cloud Browser route.

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 key point — it returns instructions and performs nothing — is front-loaded and well placed. However, the closing sentences are repetitive ('Google Search Console's official API: Google Search Console has an API...') and the hard-coded 'checked 16 Oct 2026' date adds noise without helping the agent decide or invoke.

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 zero-parameter, no-output-schema tool, the description covers what matters: what it returns (screen-by-screen steps) and that it has no side effects. The one gap is that it never says how the guide is scoped when no URL is supplied, which an agent might wonder about given the 'request indexing' framing.

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?

The tool takes zero parameters, so the baseline is 4. The description correctly implies no arguments are needed, though it could explicitly state that the returned guide is generic rather than tied to a specific URL or property.

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?

Despite a name that implies it performs the action, the description states precisely that it 'Returns how to do it in Google Search Console step by step (screens, buttons, fields) and opens nothing by itself.' It distinguishes itself from the cotlet_browser_* siblings that actually perform the clicks, so an agent can tell what it produces without ambiguity.

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?

It gives an explicit follow-up path: use cotlet_browser_* in the user's Google Search Console Cloud Browser to carry out the returned steps. It also explains why no direct API route is offered (official API covers only part of the web interface). No explicit 'when not to use' versus siblings like request_url_removal, which keeps it from a 5.

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