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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and openWorldHint=false, and the description is consistent with them. It adds context the annotations cannot: the tool returns procedural guidance only, takes no action itself, and requires a follow-up browser call. The API-gating note (partner-only credentials, unavailable on Essentials/Pro/Elite) usefully explains why a browser flow is required instead of an API path.

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 first two sentences are dense and front-loaded with the useful information, but the API paragraph is long, tangential to the call itself, and includes a stale-looking verification date ('28 Oct 2026') that adds bulk without helping invocation. The leading 'List estimates' verb also buries the real behaviour behind a clause the agent has to reconcile.

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 no-parameter, no-output-schema guide tool with full annotation coverage, the description supplies everything needed to invoke it and to know what to do next. The one omission is how the returned steps are shaped (single procedure vs. a list of estimates-then-steps), which would help the agent parse the result.

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 schema takes zero parameters, so there is no parameter meaning for the description to add; the baseline for a zero-param tool applies. The description correctly does not invent inputs the agent might expect to supply, such as a date filter or estimate ID.

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 (estimates in the user's AutoLeap account) and states the actual mechanic: it returns step-by-step instructions (screens, buttons, fields) rather than performing the listing. That said, the opening 'List estimates' phrasing sits in tension with the real behaviour, which is only clarified in the second clause, so an agent skimming the first few words could misread it as a data-fetch tool.

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 a clear sequence: get the steps here first, then execute them with the cotlet_browser_* tools, and it explicitly says this tool opens nothing by itself. That is real routing guidance. It stops short of contrasting with the sibling cotlet_app_guide, so the agent has no stated rule for choosing between the two guide-oriented tools.

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