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

Annotations already declare a read-only, idempotent, non-destructive, non-open-world call, but the description adds two facts not in the annotations: the call is free and it requires no browser session. It also discloses the universal-versus-catalog behavior, which affects what an agent will get back. Return format remains undescribed, but with full annotation coverage a 4 is warranted.

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 trigger sentence is front-loaded and useful, but the middle is a single sprawling list strung together with commas that is harder to scan than it needs to be. Nothing is outright redundant, yet the phrasing is denser than the information requires.

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?

With no output schema and no required parameters, the description carries the burden of saying what comes back, and it does list the guide's contents. The one remaining gap is that it does not explain the relationship between the task parameter and the returned method, but overall an agent has enough to 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?

Schema description coverage is 100%, and both parameters (app and task) carry their own descriptions including the Immobiliare.it default, so the baseline is 3. The description adds no parameter-level meaning such as how the task string steers the returned steps, so it does not rise above baseline.

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 (an app guide for the Cloud Browser) and enumerates its content: browser choice, sign-in link, step-by-step method, screens, menus, actions, notes, and app-specific tools. That makes it clearly distinguishable from the cotlet_browser_* action siblings, which perform steps rather than explain them. It falls short of 5 only because the opening clause is wordy rather than a crisp verb-plus-resource statement.

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 trigger, 'Call it before the first browser step in an app', and covers the fallback case of an app outside Cotlet's catalog receiving the general method. It does not state when to skip it (for example, on subsequent steps already covered by earlier context), so no exclusions are given.

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